/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_8.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 13:31:39,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 13:31:39,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 13:31:40,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 13:31:40,042 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2021-06-05 13:31:40,062 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 13:31:40,062 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 13:31:40,062 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 13:31:40,062 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 13:31:40,063 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 13:31:40,064 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 13:31:40,064 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 13:31:40,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 13:31:40,064 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 13:31:40,064 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 13:31:40,065 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 13:31:40,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 13:31:40,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 13:31:40,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 13:31:40,065 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 13:31:40,066 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 13:31:40,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 13:31:40,066 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 13:31:40,066 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 13:31:40,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 13:31:40,066 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 13:31:40,067 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 13:31:40,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 13:31:40,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 13:31:40,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 13:31:40,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 13:31:40,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 13:31:40,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 13:31:40,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 13:31:40,068 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 13:31:40,068 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 13:31:40,068 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 13:31:40,068 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 13:31:40,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 13:31:40,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 13:31:40,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 13:31:40,397 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-05 13:31:40,404 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-05 13:31:40,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_8.bpl [2021-06-05 13:31:40,405 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_8.bpl' [2021-06-05 13:31:40,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 13:31:40,636 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-05 13:31:40,637 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 13:31:40,637 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 13:31:40,637 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 13:31:40,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 01:31:40" (1/1) ... [2021-06-05 13:31:40,653 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 01:31:40" (1/1) ... [2021-06-05 13:31:40,659 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 13:31:40,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 13:31:40,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 13:31:40,664 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 13:31:40,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 01:31:40" (1/1) ... [2021-06-05 13:31:40,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 01:31:40" (1/1) ... [2021-06-05 13:31:40,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 01:31:40" (1/1) ... [2021-06-05 13:31:40,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 01:31:40" (1/1) ... [2021-06-05 13:31:40,677 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 01:31:40" (1/1) ... [2021-06-05 13:31:40,677 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 01:31:40" (1/1) ... [2021-06-05 13:31:40,678 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 01:31:40" (1/1) ... [2021-06-05 13:31:40,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 13:31:40,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 13:31:40,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 13:31:40,682 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 13:31:40,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 01:31:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 13:31:40,745 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-06-05 13:31:40,745 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-06-05 13:31:40,745 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-06-05 13:31:40,745 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-06-05 13:31:40,745 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-06-05 13:31:40,745 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-06-05 13:31:40,746 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-06-05 13:31:40,746 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-06-05 13:31:40,746 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-06-05 13:31:40,746 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-06-05 13:31:40,747 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-06-05 13:31:40,747 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-06-05 13:31:40,747 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-06-05 13:31:40,747 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-06-05 13:31:40,747 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-06-05 13:31:40,747 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-05 13:31:40,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 13:31:40,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 13:31:40,749 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-06-05 13:31:40,749 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-06-05 13:31:40,749 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-06-05 13:31:40,750 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-06-05 13:31:40,750 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-06-05 13:31:40,750 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-06-05 13:31:40,751 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-06-05 13:31:40,751 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-06-05 13:31:40,751 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-06-05 13:31:40,752 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 13:31:40,915 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 13:31:40,915 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-05 13:31:40,917 INFO L202 PluginConnector]: Adding new model example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 01:31:40 BoogieIcfgContainer [2021-06-05 13:31:40,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 13:31:40,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 13:31:40,918 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 13:31:40,921 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 13:31:40,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 01:31:40" (1/2) ... [2021-06-05 13:31:40,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b772f9 and model type example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 01:31:40, skipping insertion in model container [2021-06-05 13:31:40,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 01:31:40" (2/2) ... [2021-06-05 13:31:40,923 INFO L111 eAbstractionObserver]: Analyzing ICFG example_8.bpl [2021-06-05 13:31:40,928 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 13:31:40,928 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 13:31:40,928 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 13:31:40,929 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 13:31:41,034 INFO L149 ThreadInstanceAdder]: Constructed 64 joinOtherThreadTransitions. [2021-06-05 13:31:41,053 INFO L255 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-06-05 13:31:41,068 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 13:31:41,068 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 13:31:41,068 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 13:31:41,068 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 13:31:41,068 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 13:31:41,068 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 13:31:41,068 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 13:31:41,068 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 13:31:41,078 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 68 places, 99 transitions, 430 flow [2021-06-05 13:31:52,297 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 68819 states, 68817 states have (on average 5.968220061903309) internal successors, (410715), 68818 states have internal predecessors, (410715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:31:52,591 INFO L276 IsEmpty]: Start isEmpty. Operand has 68819 states, 68817 states have (on average 5.968220061903309) internal successors, (410715), 68818 states have internal predecessors, (410715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:31:53,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:31:53,146 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:31:53,147 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:31:53,147 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:31:53,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:31:53,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1841314055, now seen corresponding path program 1 times [2021-06-05 13:31:53,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:31:53,163 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242822736] [2021-06-05 13:31:53,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:31:53,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:31:53,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:31:53,366 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:31:53,366 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242822736] [2021-06-05 13:31:53,366 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242822736] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:31:53,367 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:31:53,367 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 13:31:53,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572806423] [2021-06-05 13:31:53,371 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 13:31:53,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:31:53,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 13:31:53,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 13:31:53,505 INFO L87 Difference]: Start difference. First operand has 68819 states, 68817 states have (on average 5.968220061903309) internal successors, (410715), 68818 states have internal predecessors, (410715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:31:54,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:31:54,756 INFO L93 Difference]: Finished difference Result 66632 states and 393219 transitions. [2021-06-05 13:31:54,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 13:31:54,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:31:54,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:31:55,572 INFO L225 Difference]: With dead ends: 66632 [2021-06-05 13:31:55,572 INFO L226 Difference]: Without dead ends: 66630 [2021-06-05 13:31:55,573 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 13:31:57,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66630 states. [2021-06-05 13:32:00,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66630 to 66630. [2021-06-05 13:32:00,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66630 states, 66629 states have (on average 5.901589398009875) internal successors, (393217), 66629 states have internal predecessors, (393217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:01,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66630 states to 66630 states and 393217 transitions. [2021-06-05 13:32:01,199 INFO L78 Accepts]: Start accepts. Automaton has 66630 states and 393217 transitions. Word has length 33 [2021-06-05 13:32:01,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:32:01,200 INFO L482 AbstractCegarLoop]: Abstraction has 66630 states and 393217 transitions. [2021-06-05 13:32:01,200 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:01,200 INFO L276 IsEmpty]: Start isEmpty. Operand 66630 states and 393217 transitions. [2021-06-05 13:32:01,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:32:01,460 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:32:01,461 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:32:01,461 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 13:32:01,461 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:32:01,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:32:01,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1230509281, now seen corresponding path program 1 times [2021-06-05 13:32:01,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:32:01,463 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261090420] [2021-06-05 13:32:01,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:32:01,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:32:01,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:32:01,524 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:32:01,524 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261090420] [2021-06-05 13:32:01,524 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261090420] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:32:01,524 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:32:01,524 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 13:32:01,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753449441] [2021-06-05 13:32:01,526 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 13:32:01,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:32:01,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 13:32:01,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 13:32:01,527 INFO L87 Difference]: Start difference. First operand 66630 states and 393217 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:02,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:32:02,344 INFO L93 Difference]: Finished difference Result 59340 states and 340729 transitions. [2021-06-05 13:32:02,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 13:32:02,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:32:02,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:32:02,977 INFO L225 Difference]: With dead ends: 59340 [2021-06-05 13:32:02,978 INFO L226 Difference]: Without dead ends: 59340 [2021-06-05 13:32:02,978 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 13:32:04,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59340 states. [2021-06-05 13:32:06,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59340 to 59340. [2021-06-05 13:32:06,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59340 states, 59339 states have (on average 5.74207519506564) internal successors, (340729), 59339 states have internal predecessors, (340729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:06,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59340 states to 59340 states and 340729 transitions. [2021-06-05 13:32:06,615 INFO L78 Accepts]: Start accepts. Automaton has 59340 states and 340729 transitions. Word has length 33 [2021-06-05 13:32:06,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:32:06,616 INFO L482 AbstractCegarLoop]: Abstraction has 59340 states and 340729 transitions. [2021-06-05 13:32:06,616 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:06,617 INFO L276 IsEmpty]: Start isEmpty. Operand 59340 states and 340729 transitions. [2021-06-05 13:32:06,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:32:06,797 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:32:06,799 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:32:06,799 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 13:32:06,799 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:32:06,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:32:06,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1462759847, now seen corresponding path program 1 times [2021-06-05 13:32:06,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:32:06,801 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499548542] [2021-06-05 13:32:06,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:32:06,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:32:06,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:32:06,856 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:32:06,857 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499548542] [2021-06-05 13:32:06,857 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499548542] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:32:06,857 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:32:06,857 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 13:32:06,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602759779] [2021-06-05 13:32:06,858 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 13:32:06,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:32:06,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 13:32:06,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 13:32:06,859 INFO L87 Difference]: Start difference. First operand 59340 states and 340729 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:07,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:32:07,644 INFO L93 Difference]: Finished difference Result 43707 states and 246391 transitions. [2021-06-05 13:32:07,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 13:32:07,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:32:07,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:32:07,887 INFO L225 Difference]: With dead ends: 43707 [2021-06-05 13:32:07,888 INFO L226 Difference]: Without dead ends: 43707 [2021-06-05 13:32:07,888 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 13:32:09,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43707 states. [2021-06-05 13:32:10,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43707 to 43707. [2021-06-05 13:32:10,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43707 states, 43706 states have (on average 5.6374639637578365) internal successors, (246391), 43706 states have internal predecessors, (246391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:10,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43707 states to 43707 states and 246391 transitions. [2021-06-05 13:32:10,604 INFO L78 Accepts]: Start accepts. Automaton has 43707 states and 246391 transitions. Word has length 33 [2021-06-05 13:32:10,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:32:10,604 INFO L482 AbstractCegarLoop]: Abstraction has 43707 states and 246391 transitions. [2021-06-05 13:32:10,604 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:10,604 INFO L276 IsEmpty]: Start isEmpty. Operand 43707 states and 246391 transitions. [2021-06-05 13:32:10,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:32:10,713 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:32:10,713 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:32:10,713 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 13:32:10,713 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:32:10,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:32:10,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1828753721, now seen corresponding path program 1 times [2021-06-05 13:32:10,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:32:10,715 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678150513] [2021-06-05 13:32:10,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:32:10,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:32:10,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:32:10,743 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:32:10,743 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678150513] [2021-06-05 13:32:10,744 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678150513] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:32:10,744 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:32:10,744 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 13:32:10,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913026394] [2021-06-05 13:32:10,745 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 13:32:10,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:32:10,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 13:32:10,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 13:32:10,746 INFO L87 Difference]: Start difference. First operand 43707 states and 246391 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:11,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:32:11,503 INFO L93 Difference]: Finished difference Result 34230 states and 187342 transitions. [2021-06-05 13:32:11,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 13:32:11,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:32:11,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:32:11,643 INFO L225 Difference]: With dead ends: 34230 [2021-06-05 13:32:11,643 INFO L226 Difference]: Without dead ends: 34230 [2021-06-05 13:32:11,643 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 13:32:12,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34230 states. [2021-06-05 13:32:13,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34230 to 34230. [2021-06-05 13:32:13,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34230 states, 34229 states have (on average 5.473195243799117) internal successors, (187342), 34229 states have internal predecessors, (187342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:13,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34230 states to 34230 states and 187342 transitions. [2021-06-05 13:32:13,941 INFO L78 Accepts]: Start accepts. Automaton has 34230 states and 187342 transitions. Word has length 33 [2021-06-05 13:32:13,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:32:13,956 INFO L482 AbstractCegarLoop]: Abstraction has 34230 states and 187342 transitions. [2021-06-05 13:32:13,957 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:13,957 INFO L276 IsEmpty]: Start isEmpty. Operand 34230 states and 187342 transitions. [2021-06-05 13:32:14,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:32:14,112 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:32:14,112 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:32:14,113 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 13:32:14,113 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:32:14,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:32:14,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1417363893, now seen corresponding path program 1 times [2021-06-05 13:32:14,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:32:14,114 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277211711] [2021-06-05 13:32:14,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:32:14,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:32:14,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:32:14,135 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:32:14,136 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277211711] [2021-06-05 13:32:14,136 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277211711] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:32:14,136 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:32:14,136 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 13:32:14,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778180190] [2021-06-05 13:32:14,136 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 13:32:14,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:32:14,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 13:32:14,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 13:32:14,137 INFO L87 Difference]: Start difference. First operand 34230 states and 187342 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:14,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:32:14,301 INFO L93 Difference]: Finished difference Result 24672 states and 133261 transitions. [2021-06-05 13:32:14,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 13:32:14,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:32:14,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:32:14,385 INFO L225 Difference]: With dead ends: 24672 [2021-06-05 13:32:14,385 INFO L226 Difference]: Without dead ends: 24672 [2021-06-05 13:32:14,386 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 13:32:15,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24672 states. [2021-06-05 13:32:15,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24672 to 24672. [2021-06-05 13:32:15,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24672 states, 24671 states have (on average 5.401524056584654) internal successors, (133261), 24671 states have internal predecessors, (133261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:16,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24672 states to 24672 states and 133261 transitions. [2021-06-05 13:32:16,083 INFO L78 Accepts]: Start accepts. Automaton has 24672 states and 133261 transitions. Word has length 33 [2021-06-05 13:32:16,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:32:16,083 INFO L482 AbstractCegarLoop]: Abstraction has 24672 states and 133261 transitions. [2021-06-05 13:32:16,083 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:16,084 INFO L276 IsEmpty]: Start isEmpty. Operand 24672 states and 133261 transitions. [2021-06-05 13:32:16,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:32:16,142 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:32:16,143 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:32:16,143 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 13:32:16,143 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:32:16,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:32:16,143 INFO L82 PathProgramCache]: Analyzing trace with hash -1862524909, now seen corresponding path program 1 times [2021-06-05 13:32:16,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:32:16,144 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979108737] [2021-06-05 13:32:16,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:32:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:32:16,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:32:16,161 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:32:16,161 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979108737] [2021-06-05 13:32:16,162 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979108737] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:32:16,162 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:32:16,162 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 13:32:16,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983146344] [2021-06-05 13:32:16,162 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 13:32:16,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:32:16,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 13:32:16,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 13:32:16,163 INFO L87 Difference]: Start difference. First operand 24672 states and 133261 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:16,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:32:16,288 INFO L93 Difference]: Finished difference Result 17820 states and 95581 transitions. [2021-06-05 13:32:16,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 13:32:16,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:32:16,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:32:16,349 INFO L225 Difference]: With dead ends: 17820 [2021-06-05 13:32:16,349 INFO L226 Difference]: Without dead ends: 17820 [2021-06-05 13:32:16,350 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 13:32:17,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17820 states. [2021-06-05 13:32:17,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17820 to 17820. [2021-06-05 13:32:17,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17820 states, 17819 states have (on average 5.363993490094843) internal successors, (95581), 17819 states have internal predecessors, (95581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:17,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17820 states to 17820 states and 95581 transitions. [2021-06-05 13:32:17,673 INFO L78 Accepts]: Start accepts. Automaton has 17820 states and 95581 transitions. Word has length 33 [2021-06-05 13:32:17,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:32:17,674 INFO L482 AbstractCegarLoop]: Abstraction has 17820 states and 95581 transitions. [2021-06-05 13:32:17,674 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:17,674 INFO L276 IsEmpty]: Start isEmpty. Operand 17820 states and 95581 transitions. [2021-06-05 13:32:17,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:32:17,712 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:32:17,712 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:32:17,712 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 13:32:17,712 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:32:17,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:32:17,713 INFO L82 PathProgramCache]: Analyzing trace with hash -757244133, now seen corresponding path program 1 times [2021-06-05 13:32:17,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:32:17,713 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059359731] [2021-06-05 13:32:17,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:32:17,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:32:17,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:32:17,736 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:32:17,736 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059359731] [2021-06-05 13:32:17,736 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059359731] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:32:17,736 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:32:17,736 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 13:32:17,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572901155] [2021-06-05 13:32:17,737 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 13:32:17,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:32:17,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 13:32:17,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 13:32:17,738 INFO L87 Difference]: Start difference. First operand 17820 states and 95581 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:18,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:32:18,115 INFO L93 Difference]: Finished difference Result 13122 states and 69985 transitions. [2021-06-05 13:32:18,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 13:32:18,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:32:18,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:32:18,158 INFO L225 Difference]: With dead ends: 13122 [2021-06-05 13:32:18,158 INFO L226 Difference]: Without dead ends: 13122 [2021-06-05 13:32:18,159 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 13:32:18,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13122 states. [2021-06-05 13:32:18,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13122 to 13122. [2021-06-05 13:32:18,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13122 states, 13121 states have (on average 5.333816020120418) internal successors, (69985), 13121 states have internal predecessors, (69985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:18,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13122 states to 13122 states and 69985 transitions. [2021-06-05 13:32:18,987 INFO L78 Accepts]: Start accepts. Automaton has 13122 states and 69985 transitions. Word has length 33 [2021-06-05 13:32:18,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:32:18,987 INFO L482 AbstractCegarLoop]: Abstraction has 13122 states and 69985 transitions. [2021-06-05 13:32:18,987 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:18,987 INFO L276 IsEmpty]: Start isEmpty. Operand 13122 states and 69985 transitions. [2021-06-05 13:32:19,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:32:19,014 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:32:19,014 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:32:19,014 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 13:32:19,014 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:32:19,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:32:19,015 INFO L82 PathProgramCache]: Analyzing trace with hash 9427259, now seen corresponding path program 1 times [2021-06-05 13:32:19,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:32:19,015 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161242084] [2021-06-05 13:32:19,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:32:19,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:32:19,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:32:19,455 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:32:19,455 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161242084] [2021-06-05 13:32:19,455 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161242084] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:32:19,455 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:32:19,455 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:32:19,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066602658] [2021-06-05 13:32:19,456 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:32:19,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:32:19,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:32:19,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:32:19,457 INFO L87 Difference]: Start difference. First operand 13122 states and 69985 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:19,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:32:19,901 INFO L93 Difference]: Finished difference Result 31785 states and 159982 transitions. [2021-06-05 13:32:19,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:32:19,902 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:32:19,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:32:20,015 INFO L225 Difference]: With dead ends: 31785 [2021-06-05 13:32:20,015 INFO L226 Difference]: Without dead ends: 31026 [2021-06-05 13:32:20,016 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 304.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:32:20,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31026 states. [2021-06-05 13:32:21,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31026 to 13439. [2021-06-05 13:32:21,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13439 states, 13438 states have (on average 5.328471498734931) internal successors, (71604), 13438 states have internal predecessors, (71604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:21,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13439 states to 13439 states and 71604 transitions. [2021-06-05 13:32:21,439 INFO L78 Accepts]: Start accepts. Automaton has 13439 states and 71604 transitions. Word has length 33 [2021-06-05 13:32:21,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:32:21,439 INFO L482 AbstractCegarLoop]: Abstraction has 13439 states and 71604 transitions. [2021-06-05 13:32:21,439 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:21,440 INFO L276 IsEmpty]: Start isEmpty. Operand 13439 states and 71604 transitions. [2021-06-05 13:32:21,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:32:21,468 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:32:21,469 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:32:21,469 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 13:32:21,469 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:32:21,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:32:21,469 INFO L82 PathProgramCache]: Analyzing trace with hash -837369703, now seen corresponding path program 2 times [2021-06-05 13:32:21,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:32:21,470 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101639367] [2021-06-05 13:32:21,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:32:21,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:32:21,769 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 10 [2021-06-05 13:32:22,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:32:22,075 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:32:22,075 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101639367] [2021-06-05 13:32:22,075 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101639367] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:32:22,075 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:32:22,075 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:32:22,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048856406] [2021-06-05 13:32:22,076 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:32:22,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:32:22,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:32:22,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:32:22,077 INFO L87 Difference]: Start difference. First operand 13439 states and 71604 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:22,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:32:22,585 INFO L93 Difference]: Finished difference Result 31777 states and 159834 transitions. [2021-06-05 13:32:22,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:32:22,586 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:32:22,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:32:22,818 INFO L225 Difference]: With dead ends: 31777 [2021-06-05 13:32:22,820 INFO L226 Difference]: Without dead ends: 30906 [2021-06-05 13:32:22,820 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 340.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:32:23,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30906 states. [2021-06-05 13:32:24,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30906 to 13319. [2021-06-05 13:32:24,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13319 states, 13318 states have (on average 5.335035290584171) internal successors, (71052), 13318 states have internal predecessors, (71052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:24,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13319 states to 13319 states and 71052 transitions. [2021-06-05 13:32:24,228 INFO L78 Accepts]: Start accepts. Automaton has 13319 states and 71052 transitions. Word has length 33 [2021-06-05 13:32:24,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:32:24,228 INFO L482 AbstractCegarLoop]: Abstraction has 13319 states and 71052 transitions. [2021-06-05 13:32:24,229 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:24,229 INFO L276 IsEmpty]: Start isEmpty. Operand 13319 states and 71052 transitions. [2021-06-05 13:32:24,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:32:24,256 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:32:24,256 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:32:24,256 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 13:32:24,256 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:32:24,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:32:24,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1760821563, now seen corresponding path program 3 times [2021-06-05 13:32:24,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:32:24,257 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833923666] [2021-06-05 13:32:24,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:32:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:32:24,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:32:24,546 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:32:24,547 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833923666] [2021-06-05 13:32:24,547 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833923666] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:32:24,547 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:32:24,547 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:32:24,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049782628] [2021-06-05 13:32:24,548 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:32:24,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:32:24,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:32:24,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:32:24,549 INFO L87 Difference]: Start difference. First operand 13319 states and 71052 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:24,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:32:24,886 INFO L93 Difference]: Finished difference Result 31996 states and 160881 transitions. [2021-06-05 13:32:24,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:32:24,886 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:32:24,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:32:24,986 INFO L225 Difference]: With dead ends: 31996 [2021-06-05 13:32:24,986 INFO L226 Difference]: Without dead ends: 31237 [2021-06-05 13:32:24,987 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 272.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:32:25,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31237 states. [2021-06-05 13:32:26,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31237 to 13507. [2021-06-05 13:32:26,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13507 states, 13506 states have (on average 5.321782911298682) internal successors, (71876), 13506 states have internal predecessors, (71876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:26,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13507 states to 13507 states and 71876 transitions. [2021-06-05 13:32:26,204 INFO L78 Accepts]: Start accepts. Automaton has 13507 states and 71876 transitions. Word has length 33 [2021-06-05 13:32:26,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:32:26,205 INFO L482 AbstractCegarLoop]: Abstraction has 13507 states and 71876 transitions. [2021-06-05 13:32:26,205 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:26,205 INFO L276 IsEmpty]: Start isEmpty. Operand 13507 states and 71876 transitions. [2021-06-05 13:32:26,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:32:26,232 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:32:26,232 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:32:26,232 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 13:32:26,232 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:32:26,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:32:26,233 INFO L82 PathProgramCache]: Analyzing trace with hash -146065093, now seen corresponding path program 4 times [2021-06-05 13:32:26,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:32:26,233 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652658846] [2021-06-05 13:32:26,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:32:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:32:26,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:32:26,499 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:32:26,499 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652658846] [2021-06-05 13:32:26,500 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652658846] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:32:26,500 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:32:26,500 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:32:26,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574727599] [2021-06-05 13:32:26,500 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:32:26,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:32:26,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:32:26,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:32:26,503 INFO L87 Difference]: Start difference. First operand 13507 states and 71876 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:26,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:32:26,963 INFO L93 Difference]: Finished difference Result 32131 states and 161352 transitions. [2021-06-05 13:32:26,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:32:26,964 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:32:26,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:32:27,071 INFO L225 Difference]: With dead ends: 32131 [2021-06-05 13:32:27,071 INFO L226 Difference]: Without dead ends: 31049 [2021-06-05 13:32:27,071 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 249.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:32:27,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31049 states. [2021-06-05 13:32:28,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31049 to 13319. [2021-06-05 13:32:28,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13319 states, 13318 states have (on average 5.328127346448416) internal successors, (70960), 13318 states have internal predecessors, (70960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:28,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13319 states to 13319 states and 70960 transitions. [2021-06-05 13:32:28,362 INFO L78 Accepts]: Start accepts. Automaton has 13319 states and 70960 transitions. Word has length 33 [2021-06-05 13:32:28,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:32:28,363 INFO L482 AbstractCegarLoop]: Abstraction has 13319 states and 70960 transitions. [2021-06-05 13:32:28,363 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:28,363 INFO L276 IsEmpty]: Start isEmpty. Operand 13319 states and 70960 transitions. [2021-06-05 13:32:28,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:32:28,390 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:32:28,390 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:32:28,390 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 13:32:28,390 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:32:28,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:32:28,391 INFO L82 PathProgramCache]: Analyzing trace with hash 904073497, now seen corresponding path program 5 times [2021-06-05 13:32:28,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:32:28,391 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637283983] [2021-06-05 13:32:28,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:32:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:32:28,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:32:28,695 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:32:28,695 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637283983] [2021-06-05 13:32:28,695 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637283983] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:32:28,695 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:32:28,695 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:32:28,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422339632] [2021-06-05 13:32:28,696 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:32:28,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:32:28,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:32:28,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:32:28,697 INFO L87 Difference]: Start difference. First operand 13319 states and 70960 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:28,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:32:28,971 INFO L93 Difference]: Finished difference Result 31976 states and 160717 transitions. [2021-06-05 13:32:28,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:32:28,972 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:32:28,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:32:29,070 INFO L225 Difference]: With dead ends: 31976 [2021-06-05 13:32:29,070 INFO L226 Difference]: Without dead ends: 31225 [2021-06-05 13:32:29,071 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 296.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:32:30,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31225 states. [2021-06-05 13:32:30,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31225 to 13503. [2021-06-05 13:32:30,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13503 states, 13502 states have (on average 5.315656939712635) internal successors, (71772), 13502 states have internal predecessors, (71772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:30,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13503 states to 13503 states and 71772 transitions. [2021-06-05 13:32:30,343 INFO L78 Accepts]: Start accepts. Automaton has 13503 states and 71772 transitions. Word has length 33 [2021-06-05 13:32:30,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:32:30,343 INFO L482 AbstractCegarLoop]: Abstraction has 13503 states and 71772 transitions. [2021-06-05 13:32:30,343 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:30,343 INFO L276 IsEmpty]: Start isEmpty. Operand 13503 states and 71772 transitions. [2021-06-05 13:32:30,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:32:30,370 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:32:30,370 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:32:30,370 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 13:32:30,370 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:32:30,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:32:30,371 INFO L82 PathProgramCache]: Analyzing trace with hash 286550139, now seen corresponding path program 6 times [2021-06-05 13:32:30,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:32:30,371 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702109084] [2021-06-05 13:32:30,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:32:30,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:32:30,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:32:30,632 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:32:30,632 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702109084] [2021-06-05 13:32:30,633 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702109084] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:32:30,634 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:32:30,634 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:32:30,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991743283] [2021-06-05 13:32:30,634 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:32:30,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:32:30,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:32:30,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:32:30,635 INFO L87 Difference]: Start difference. First operand 13503 states and 71772 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:30,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:32:30,897 INFO L93 Difference]: Finished difference Result 32119 states and 161220 transitions. [2021-06-05 13:32:30,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:32:30,898 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:32:30,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:32:30,994 INFO L225 Difference]: With dead ends: 32119 [2021-06-05 13:32:30,994 INFO L226 Difference]: Without dead ends: 30949 [2021-06-05 13:32:30,995 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 243.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:32:31,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30949 states. [2021-06-05 13:32:32,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30949 to 13227. [2021-06-05 13:32:32,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13227 states, 13226 states have (on average 5.334643883260245) internal successors, (70556), 13226 states have internal predecessors, (70556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:32,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13227 states to 13227 states and 70556 transitions. [2021-06-05 13:32:32,250 INFO L78 Accepts]: Start accepts. Automaton has 13227 states and 70556 transitions. Word has length 33 [2021-06-05 13:32:32,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:32:32,250 INFO L482 AbstractCegarLoop]: Abstraction has 13227 states and 70556 transitions. [2021-06-05 13:32:32,250 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:32,250 INFO L276 IsEmpty]: Start isEmpty. Operand 13227 states and 70556 transitions. [2021-06-05 13:32:32,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:32:32,277 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:32:32,277 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:32:32,277 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-05 13:32:32,277 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:32:32,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:32:32,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1370978785, now seen corresponding path program 7 times [2021-06-05 13:32:32,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:32:32,278 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516729825] [2021-06-05 13:32:32,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:32:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:32:32,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:32:32,492 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:32:32,492 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516729825] [2021-06-05 13:32:32,492 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516729825] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:32:32,493 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:32:32,493 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:32:32,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139143956] [2021-06-05 13:32:32,493 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:32:32,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:32:32,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:32:32,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:32:32,494 INFO L87 Difference]: Start difference. First operand 13227 states and 70556 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:33,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:32:33,126 INFO L93 Difference]: Finished difference Result 31442 states and 158327 transitions. [2021-06-05 13:32:33,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:32:33,127 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:32:33,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:32:33,266 INFO L225 Difference]: With dead ends: 31442 [2021-06-05 13:32:33,266 INFO L226 Difference]: Without dead ends: 30683 [2021-06-05 13:32:33,267 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 215.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:32:34,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30683 states. [2021-06-05 13:32:34,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30683 to 13403. [2021-06-05 13:32:34,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13403 states, 13402 states have (on average 5.324876884047157) internal successors, (71364), 13402 states have internal predecessors, (71364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:34,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13403 states to 13403 states and 71364 transitions. [2021-06-05 13:32:34,566 INFO L78 Accepts]: Start accepts. Automaton has 13403 states and 71364 transitions. Word has length 33 [2021-06-05 13:32:34,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:32:34,566 INFO L482 AbstractCegarLoop]: Abstraction has 13403 states and 71364 transitions. [2021-06-05 13:32:34,566 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:34,566 INFO L276 IsEmpty]: Start isEmpty. Operand 13403 states and 71364 transitions. [2021-06-05 13:32:34,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:32:34,594 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:32:34,594 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:32:34,594 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-05 13:32:34,595 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:32:34,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:32:34,595 INFO L82 PathProgramCache]: Analyzing trace with hash 2077191549, now seen corresponding path program 8 times [2021-06-05 13:32:34,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:32:34,595 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792703014] [2021-06-05 13:32:34,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:32:34,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:32:34,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:32:34,809 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:32:34,809 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792703014] [2021-06-05 13:32:34,809 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792703014] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:32:34,809 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:32:34,809 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:32:34,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336534689] [2021-06-05 13:32:34,809 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:32:34,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:32:34,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:32:34,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:32:34,810 INFO L87 Difference]: Start difference. First operand 13403 states and 71364 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:35,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:32:35,104 INFO L93 Difference]: Finished difference Result 31434 states and 158179 transitions. [2021-06-05 13:32:35,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:32:35,105 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:32:35,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:32:35,205 INFO L225 Difference]: With dead ends: 31434 [2021-06-05 13:32:35,205 INFO L226 Difference]: Without dead ends: 30563 [2021-06-05 13:32:35,206 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 221.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:32:36,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30563 states. [2021-06-05 13:32:36,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30563 to 13283. [2021-06-05 13:32:36,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13283 states, 13282 states have (on average 5.3317271495256735) internal successors, (70816), 13282 states have internal predecessors, (70816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:36,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13283 states to 13283 states and 70816 transitions. [2021-06-05 13:32:36,517 INFO L78 Accepts]: Start accepts. Automaton has 13283 states and 70816 transitions. Word has length 33 [2021-06-05 13:32:36,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:32:36,517 INFO L482 AbstractCegarLoop]: Abstraction has 13283 states and 70816 transitions. [2021-06-05 13:32:36,517 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:36,517 INFO L276 IsEmpty]: Start isEmpty. Operand 13283 states and 70816 transitions. [2021-06-05 13:32:36,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:32:36,551 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:32:36,551 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:32:36,551 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-05 13:32:36,551 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:32:36,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:32:36,552 INFO L82 PathProgramCache]: Analyzing trace with hash 900926973, now seen corresponding path program 9 times [2021-06-05 13:32:36,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:32:36,552 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269203029] [2021-06-05 13:32:36,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:32:36,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:32:36,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:32:36,760 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:32:36,760 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269203029] [2021-06-05 13:32:36,762 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269203029] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:32:36,762 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:32:36,762 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:32:36,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886430623] [2021-06-05 13:32:36,763 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:32:36,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:32:36,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:32:36,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:32:36,764 INFO L87 Difference]: Start difference. First operand 13283 states and 70816 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:37,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:32:37,104 INFO L93 Difference]: Finished difference Result 31418 states and 158171 transitions. [2021-06-05 13:32:37,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:32:37,104 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:32:37,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:32:37,213 INFO L225 Difference]: With dead ends: 31418 [2021-06-05 13:32:37,213 INFO L226 Difference]: Without dead ends: 30659 [2021-06-05 13:32:37,214 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 229.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:32:38,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30659 states. [2021-06-05 13:32:38,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30659 to 13395. [2021-06-05 13:32:38,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13395 states, 13394 states have (on average 5.321785874272062) internal successors, (71280), 13394 states have internal predecessors, (71280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:38,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13395 states to 13395 states and 71280 transitions. [2021-06-05 13:32:38,502 INFO L78 Accepts]: Start accepts. Automaton has 13395 states and 71280 transitions. Word has length 33 [2021-06-05 13:32:38,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:32:38,502 INFO L482 AbstractCegarLoop]: Abstraction has 13395 states and 71280 transitions. [2021-06-05 13:32:38,502 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:38,502 INFO L276 IsEmpty]: Start isEmpty. Operand 13395 states and 71280 transitions. [2021-06-05 13:32:38,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:32:38,529 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:32:38,529 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:32:38,529 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-05 13:32:38,529 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:32:38,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:32:38,530 INFO L82 PathProgramCache]: Analyzing trace with hash 104900093, now seen corresponding path program 10 times [2021-06-05 13:32:38,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:32:38,530 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606880741] [2021-06-05 13:32:38,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:32:38,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:32:38,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:32:38,725 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:32:38,726 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606880741] [2021-06-05 13:32:38,726 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606880741] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:32:38,726 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:32:38,726 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:32:38,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586913168] [2021-06-05 13:32:38,726 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:32:38,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:32:38,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:32:38,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:32:38,727 INFO L87 Difference]: Start difference. First operand 13395 states and 71280 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:39,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:32:39,205 INFO L93 Difference]: Finished difference Result 31394 states and 157967 transitions. [2021-06-05 13:32:39,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:32:39,205 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:32:39,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:32:39,317 INFO L225 Difference]: With dead ends: 31394 [2021-06-05 13:32:39,318 INFO L226 Difference]: Without dead ends: 30547 [2021-06-05 13:32:39,318 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 195.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:32:40,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30547 states. [2021-06-05 13:32:40,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30547 to 13283. [2021-06-05 13:32:40,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13283 states, 13282 states have (on average 5.327510917030568) internal successors, (70760), 13282 states have internal predecessors, (70760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:40,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13283 states to 13283 states and 70760 transitions. [2021-06-05 13:32:40,631 INFO L78 Accepts]: Start accepts. Automaton has 13283 states and 70760 transitions. Word has length 33 [2021-06-05 13:32:40,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:32:40,632 INFO L482 AbstractCegarLoop]: Abstraction has 13283 states and 70760 transitions. [2021-06-05 13:32:40,632 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:40,632 INFO L276 IsEmpty]: Start isEmpty. Operand 13283 states and 70760 transitions. [2021-06-05 13:32:40,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:32:40,658 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:32:40,658 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:32:40,658 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-05 13:32:40,658 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:32:40,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:32:40,658 INFO L82 PathProgramCache]: Analyzing trace with hash 44178907, now seen corresponding path program 11 times [2021-06-05 13:32:40,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:32:40,658 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733563138] [2021-06-05 13:32:40,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:32:40,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:32:40,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:32:40,854 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:32:40,854 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733563138] [2021-06-05 13:32:40,854 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733563138] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:32:40,854 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:32:40,854 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:32:40,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123847097] [2021-06-05 13:32:40,855 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:32:40,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:32:40,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:32:40,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:32:40,855 INFO L87 Difference]: Start difference. First operand 13283 states and 70760 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:41,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:32:41,111 INFO L93 Difference]: Finished difference Result 31402 states and 158059 transitions. [2021-06-05 13:32:41,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:32:41,120 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:32:41,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:32:41,218 INFO L225 Difference]: With dead ends: 31402 [2021-06-05 13:32:41,218 INFO L226 Difference]: Without dead ends: 30651 [2021-06-05 13:32:41,219 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 202.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:32:41,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30651 states. [2021-06-05 13:32:42,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30651 to 13395. [2021-06-05 13:32:42,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13395 states, 13394 states have (on average 5.317604897715395) internal successors, (71224), 13394 states have internal predecessors, (71224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:42,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13395 states to 13395 states and 71224 transitions. [2021-06-05 13:32:42,479 INFO L78 Accepts]: Start accepts. Automaton has 13395 states and 71224 transitions. Word has length 33 [2021-06-05 13:32:42,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:32:42,479 INFO L482 AbstractCegarLoop]: Abstraction has 13395 states and 71224 transitions. [2021-06-05 13:32:42,479 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:42,479 INFO L276 IsEmpty]: Start isEmpty. Operand 13395 states and 71224 transitions. [2021-06-05 13:32:42,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:32:42,506 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:32:42,506 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:32:42,506 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-05 13:32:42,507 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:32:42,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:32:42,507 INFO L82 PathProgramCache]: Analyzing trace with hash -436723139, now seen corresponding path program 12 times [2021-06-05 13:32:42,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:32:42,507 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628539707] [2021-06-05 13:32:42,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:32:42,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:32:42,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:32:42,719 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:32:42,719 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628539707] [2021-06-05 13:32:42,719 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628539707] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:32:42,719 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:32:42,719 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:32:42,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707879238] [2021-06-05 13:32:42,719 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:32:42,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:32:42,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:32:42,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:32:42,720 INFO L87 Difference]: Start difference. First operand 13395 states and 71224 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:43,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:32:43,026 INFO L93 Difference]: Finished difference Result 31386 states and 157883 transitions. [2021-06-05 13:32:43,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:32:43,027 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:32:43,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:32:43,123 INFO L225 Difference]: With dead ends: 31386 [2021-06-05 13:32:43,123 INFO L226 Difference]: Without dead ends: 30483 [2021-06-05 13:32:43,123 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 207.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:32:44,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30483 states. [2021-06-05 13:32:44,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30483 to 13227. [2021-06-05 13:32:44,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13227 states, 13226 states have (on average 5.332526841070618) internal successors, (70528), 13226 states have internal predecessors, (70528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:44,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13227 states to 13227 states and 70528 transitions. [2021-06-05 13:32:44,376 INFO L78 Accepts]: Start accepts. Automaton has 13227 states and 70528 transitions. Word has length 33 [2021-06-05 13:32:44,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:32:44,376 INFO L482 AbstractCegarLoop]: Abstraction has 13227 states and 70528 transitions. [2021-06-05 13:32:44,377 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:44,377 INFO L276 IsEmpty]: Start isEmpty. Operand 13227 states and 70528 transitions. [2021-06-05 13:32:44,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:32:44,403 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:32:44,403 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:32:44,403 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-05 13:32:44,403 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:32:44,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:32:44,404 INFO L82 PathProgramCache]: Analyzing trace with hash -392502437, now seen corresponding path program 13 times [2021-06-05 13:32:44,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:32:44,404 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206478867] [2021-06-05 13:32:44,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:32:44,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:32:44,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:32:44,616 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:32:44,616 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206478867] [2021-06-05 13:32:44,616 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206478867] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:32:44,616 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:32:44,616 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:32:44,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690075568] [2021-06-05 13:32:44,616 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:32:44,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:32:44,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:32:44,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:32:44,617 INFO L87 Difference]: Start difference. First operand 13227 states and 70528 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:45,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:32:45,169 INFO L93 Difference]: Finished difference Result 31725 states and 159654 transitions. [2021-06-05 13:32:45,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:32:45,169 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:32:45,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:32:45,287 INFO L225 Difference]: With dead ends: 31725 [2021-06-05 13:32:45,288 INFO L226 Difference]: Without dead ends: 30966 [2021-06-05 13:32:45,288 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 231.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:32:46,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30966 states. [2021-06-05 13:32:46,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30966 to 13427. [2021-06-05 13:32:46,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13427 states, 13426 states have (on average 5.32429614181439) internal successors, (71484), 13426 states have internal predecessors, (71484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:46,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13427 states to 13427 states and 71484 transitions. [2021-06-05 13:32:46,382 INFO L78 Accepts]: Start accepts. Automaton has 13427 states and 71484 transitions. Word has length 33 [2021-06-05 13:32:46,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:32:46,382 INFO L482 AbstractCegarLoop]: Abstraction has 13427 states and 71484 transitions. [2021-06-05 13:32:46,382 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:46,382 INFO L276 IsEmpty]: Start isEmpty. Operand 13427 states and 71484 transitions. [2021-06-05 13:32:46,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:32:46,409 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:32:46,409 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:32:46,409 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-05 13:32:46,409 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:32:46,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:32:46,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1188529317, now seen corresponding path program 14 times [2021-06-05 13:32:46,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:32:46,410 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048840529] [2021-06-05 13:32:46,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:32:46,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:32:46,670 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 15 [2021-06-05 13:32:46,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:32:46,822 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:32:46,822 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048840529] [2021-06-05 13:32:46,823 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048840529] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:32:46,823 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:32:46,823 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:32:46,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101580879] [2021-06-05 13:32:46,823 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:32:46,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:32:46,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:32:46,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:32:46,824 INFO L87 Difference]: Start difference. First operand 13427 states and 71484 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:47,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:32:47,087 INFO L93 Difference]: Finished difference Result 31701 states and 159450 transitions. [2021-06-05 13:32:47,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:32:47,087 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:32:47,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:32:47,186 INFO L225 Difference]: With dead ends: 31701 [2021-06-05 13:32:47,186 INFO L226 Difference]: Without dead ends: 30854 [2021-06-05 13:32:47,186 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 419.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:32:47,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30854 states. [2021-06-05 13:32:48,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30854 to 13315. [2021-06-05 13:32:48,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13315 states, 13314 states have (on average 5.330028541385008) internal successors, (70964), 13314 states have internal predecessors, (70964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:48,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13315 states to 13315 states and 70964 transitions. [2021-06-05 13:32:48,472 INFO L78 Accepts]: Start accepts. Automaton has 13315 states and 70964 transitions. Word has length 33 [2021-06-05 13:32:48,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:32:48,472 INFO L482 AbstractCegarLoop]: Abstraction has 13315 states and 70964 transitions. [2021-06-05 13:32:48,472 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:48,473 INFO L276 IsEmpty]: Start isEmpty. Operand 13315 states and 70964 transitions. [2021-06-05 13:32:48,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:32:48,499 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:32:48,499 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:32:48,499 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-05 13:32:48,499 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:32:48,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:32:48,500 INFO L82 PathProgramCache]: Analyzing trace with hash -818478403, now seen corresponding path program 15 times [2021-06-05 13:32:48,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:32:48,500 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738788188] [2021-06-05 13:32:48,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:32:48,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:32:48,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:32:48,725 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:32:48,725 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738788188] [2021-06-05 13:32:48,725 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738788188] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:32:48,725 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:32:48,725 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:32:48,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491861594] [2021-06-05 13:32:48,726 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:32:48,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:32:48,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:32:48,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:32:48,728 INFO L87 Difference]: Start difference. First operand 13315 states and 70964 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:48,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:32:48,988 INFO L93 Difference]: Finished difference Result 31960 states and 160657 transitions. [2021-06-05 13:32:48,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:32:48,988 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:32:48,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:32:49,087 INFO L225 Difference]: With dead ends: 31960 [2021-06-05 13:32:49,088 INFO L226 Difference]: Without dead ends: 31201 [2021-06-05 13:32:49,088 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 220.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:32:49,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31201 states. [2021-06-05 13:32:50,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31201 to 13503. [2021-06-05 13:32:50,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13503 states, 13502 states have (on average 5.316841949340838) internal successors, (71788), 13502 states have internal predecessors, (71788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:50,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13503 states to 13503 states and 71788 transitions. [2021-06-05 13:32:50,297 INFO L78 Accepts]: Start accepts. Automaton has 13503 states and 71788 transitions. Word has length 33 [2021-06-05 13:32:50,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:32:50,298 INFO L482 AbstractCegarLoop]: Abstraction has 13503 states and 71788 transitions. [2021-06-05 13:32:50,298 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:50,298 INFO L276 IsEmpty]: Start isEmpty. Operand 13503 states and 71788 transitions. [2021-06-05 13:32:50,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:32:50,325 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:32:50,325 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:32:50,325 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-05 13:32:50,325 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:32:50,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:32:50,325 INFO L82 PathProgramCache]: Analyzing trace with hash -388777125, now seen corresponding path program 16 times [2021-06-05 13:32:50,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:32:50,326 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874012600] [2021-06-05 13:32:50,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:32:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:32:50,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:32:50,551 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:32:50,551 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874012600] [2021-06-05 13:32:50,551 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874012600] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:32:50,551 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:32:50,551 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:32:50,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547753185] [2021-06-05 13:32:50,552 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:32:50,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:32:50,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:32:50,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:32:50,552 INFO L87 Difference]: Start difference. First operand 13503 states and 71788 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:50,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:32:50,836 INFO L93 Difference]: Finished difference Result 32095 states and 161128 transitions. [2021-06-05 13:32:50,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:32:50,836 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:32:50,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:32:50,935 INFO L225 Difference]: With dead ends: 32095 [2021-06-05 13:32:50,935 INFO L226 Difference]: Without dead ends: 31013 [2021-06-05 13:32:50,935 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 221.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:32:51,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31013 states. [2021-06-05 13:32:52,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31013 to 13315. [2021-06-05 13:32:52,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13315 states, 13314 states have (on average 5.323418957488358) internal successors, (70876), 13314 states have internal predecessors, (70876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:52,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13315 states to 13315 states and 70876 transitions. [2021-06-05 13:32:52,295 INFO L78 Accepts]: Start accepts. Automaton has 13315 states and 70876 transitions. Word has length 33 [2021-06-05 13:32:52,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:32:52,296 INFO L482 AbstractCegarLoop]: Abstraction has 13315 states and 70876 transitions. [2021-06-05 13:32:52,297 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:52,297 INFO L276 IsEmpty]: Start isEmpty. Operand 13315 states and 70876 transitions. [2021-06-05 13:32:52,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:32:52,326 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:32:52,326 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:32:52,326 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-05 13:32:52,326 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:32:52,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:32:52,326 INFO L82 PathProgramCache]: Analyzing trace with hash 244429659, now seen corresponding path program 17 times [2021-06-05 13:32:52,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:32:52,326 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371303530] [2021-06-05 13:32:52,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:32:52,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:32:52,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:32:52,541 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:32:52,541 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371303530] [2021-06-05 13:32:52,541 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371303530] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:32:52,541 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:32:52,541 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:32:52,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179683952] [2021-06-05 13:32:52,541 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:32:52,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:32:52,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:32:52,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:32:52,542 INFO L87 Difference]: Start difference. First operand 13315 states and 70876 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:52,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:32:52,986 INFO L93 Difference]: Finished difference Result 31900 states and 160333 transitions. [2021-06-05 13:32:52,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:32:52,987 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:32:52,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:32:53,085 INFO L225 Difference]: With dead ends: 31900 [2021-06-05 13:32:53,085 INFO L226 Difference]: Without dead ends: 31165 [2021-06-05 13:32:53,085 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 224.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:32:53,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31165 states. [2021-06-05 13:32:54,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31165 to 13491. [2021-06-05 13:32:54,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13491 states, 13490 states have (on average 5.312083024462565) internal successors, (71660), 13490 states have internal predecessors, (71660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:54,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13491 states to 13491 states and 71660 transitions. [2021-06-05 13:32:54,386 INFO L78 Accepts]: Start accepts. Automaton has 13491 states and 71660 transitions. Word has length 33 [2021-06-05 13:32:54,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:32:54,386 INFO L482 AbstractCegarLoop]: Abstraction has 13491 states and 71660 transitions. [2021-06-05 13:32:54,386 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:54,386 INFO L276 IsEmpty]: Start isEmpty. Operand 13491 states and 71660 transitions. [2021-06-05 13:32:54,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:32:54,414 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:32:54,414 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:32:54,415 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-05 13:32:54,415 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:32:54,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:32:54,415 INFO L82 PathProgramCache]: Analyzing trace with hash 319963965, now seen corresponding path program 18 times [2021-06-05 13:32:54,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:32:54,415 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862299138] [2021-06-05 13:32:54,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:32:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:32:54,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:32:54,637 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:32:54,637 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862299138] [2021-06-05 13:32:54,637 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862299138] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:32:54,637 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:32:54,637 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:32:54,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582011847] [2021-06-05 13:32:54,637 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:32:54,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:32:54,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:32:54,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:32:54,638 INFO L87 Difference]: Start difference. First operand 13491 states and 71660 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:54,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:32:54,854 INFO L93 Difference]: Finished difference Result 32059 states and 160908 transitions. [2021-06-05 13:32:54,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:32:54,855 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:32:54,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:32:54,951 INFO L225 Difference]: With dead ends: 32059 [2021-06-05 13:32:54,951 INFO L226 Difference]: Without dead ends: 30901 [2021-06-05 13:32:54,951 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 199.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:32:55,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30901 states. [2021-06-05 13:32:56,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30901 to 13227. [2021-06-05 13:32:56,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13227 states, 13226 states have (on average 5.32920006048692) internal successors, (70484), 13226 states have internal predecessors, (70484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:56,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13227 states to 13227 states and 70484 transitions. [2021-06-05 13:32:56,201 INFO L78 Accepts]: Start accepts. Automaton has 13227 states and 70484 transitions. Word has length 33 [2021-06-05 13:32:56,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:32:56,201 INFO L482 AbstractCegarLoop]: Abstraction has 13227 states and 70484 transitions. [2021-06-05 13:32:56,201 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:56,201 INFO L276 IsEmpty]: Start isEmpty. Operand 13227 states and 70484 transitions. [2021-06-05 13:32:56,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:32:56,228 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:32:56,229 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:32:56,229 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-05 13:32:56,229 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:32:56,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:32:56,229 INFO L82 PathProgramCache]: Analyzing trace with hash 2072640441, now seen corresponding path program 19 times [2021-06-05 13:32:56,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:32:56,229 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309601704] [2021-06-05 13:32:56,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:32:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:32:56,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:32:56,453 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:32:56,453 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309601704] [2021-06-05 13:32:56,453 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309601704] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:32:56,453 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:32:56,453 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:32:56,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82389006] [2021-06-05 13:32:56,453 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:32:56,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:32:56,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:32:56,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:32:56,454 INFO L87 Difference]: Start difference. First operand 13227 states and 70484 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:56,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:32:56,714 INFO L93 Difference]: Finished difference Result 31697 states and 159510 transitions. [2021-06-05 13:32:56,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:32:56,715 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:32:56,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:32:56,817 INFO L225 Difference]: With dead ends: 31697 [2021-06-05 13:32:56,817 INFO L226 Difference]: Without dead ends: 30946 [2021-06-05 13:32:56,818 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 220.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:32:57,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30946 states. [2021-06-05 13:32:58,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30946 to 13427. [2021-06-05 13:32:58,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13427 states, 13426 states have (on average 5.3210189185163115) internal successors, (71440), 13426 states have internal predecessors, (71440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:58,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13427 states to 13427 states and 71440 transitions. [2021-06-05 13:32:58,090 INFO L78 Accepts]: Start accepts. Automaton has 13427 states and 71440 transitions. Word has length 33 [2021-06-05 13:32:58,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:32:58,090 INFO L482 AbstractCegarLoop]: Abstraction has 13427 states and 71440 transitions. [2021-06-05 13:32:58,090 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:58,090 INFO L276 IsEmpty]: Start isEmpty. Operand 13427 states and 71440 transitions. [2021-06-05 13:32:58,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:32:58,120 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:32:58,120 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:32:58,120 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-05 13:32:58,120 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:32:58,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:32:58,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1591738395, now seen corresponding path program 20 times [2021-06-05 13:32:58,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:32:58,120 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418380350] [2021-06-05 13:32:58,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:32:58,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:32:58,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:32:58,317 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:32:58,317 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418380350] [2021-06-05 13:32:58,317 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418380350] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:32:58,317 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:32:58,317 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:32:58,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330244592] [2021-06-05 13:32:58,318 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:32:58,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:32:58,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:32:58,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:32:58,318 INFO L87 Difference]: Start difference. First operand 13427 states and 71440 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:32:58,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:32:58,578 INFO L93 Difference]: Finished difference Result 31681 states and 159334 transitions. [2021-06-05 13:32:58,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:32:58,579 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:32:58,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:32:58,682 INFO L225 Difference]: With dead ends: 31681 [2021-06-05 13:32:58,682 INFO L226 Difference]: Without dead ends: 30834 [2021-06-05 13:32:58,682 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 221.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:32:59,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30834 states. [2021-06-05 13:32:59,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30834 to 13315. [2021-06-05 13:32:59,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13315 states, 13314 states have (on average 5.326723749436683) internal successors, (70920), 13314 states have internal predecessors, (70920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:00,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13315 states to 13315 states and 70920 transitions. [2021-06-05 13:33:00,011 INFO L78 Accepts]: Start accepts. Automaton has 13315 states and 70920 transitions. Word has length 33 [2021-06-05 13:33:00,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:00,012 INFO L482 AbstractCegarLoop]: Abstraction has 13315 states and 70920 transitions. [2021-06-05 13:33:00,012 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:00,012 INFO L276 IsEmpty]: Start isEmpty. Operand 13315 states and 70920 transitions. [2021-06-05 13:33:00,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:00,038 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:00,038 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:00,038 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-05 13:33:00,038 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:00,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:00,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1646664475, now seen corresponding path program 21 times [2021-06-05 13:33:00,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:00,039 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320030718] [2021-06-05 13:33:00,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:00,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:33:00,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:33:00,253 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:33:00,253 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320030718] [2021-06-05 13:33:00,253 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320030718] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:33:00,253 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:33:00,254 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:33:00,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427035262] [2021-06-05 13:33:00,254 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:33:00,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:33:00,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:33:00,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:33:00,255 INFO L87 Difference]: Start difference. First operand 13315 states and 70920 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:00,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:33:00,705 INFO L93 Difference]: Finished difference Result 31928 states and 160497 transitions. [2021-06-05 13:33:00,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:33:00,705 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:33:00,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:33:00,801 INFO L225 Difference]: With dead ends: 31928 [2021-06-05 13:33:00,801 INFO L226 Difference]: Without dead ends: 31177 [2021-06-05 13:33:00,801 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 234.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:33:01,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31177 states. [2021-06-05 13:33:02,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31177 to 13499. [2021-06-05 13:33:02,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13499 states, 13498 states have (on average 5.314268780560083) internal successors, (71732), 13498 states have internal predecessors, (71732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:02,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13499 states to 13499 states and 71732 transitions. [2021-06-05 13:33:02,060 INFO L78 Accepts]: Start accepts. Automaton has 13499 states and 71732 transitions. Word has length 33 [2021-06-05 13:33:02,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:02,060 INFO L482 AbstractCegarLoop]: Abstraction has 13499 states and 71732 transitions. [2021-06-05 13:33:02,060 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:02,060 INFO L276 IsEmpty]: Start isEmpty. Operand 13499 states and 71732 transitions. [2021-06-05 13:33:02,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:02,087 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:02,087 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:02,087 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-06-05 13:33:02,087 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:02,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:02,088 INFO L82 PathProgramCache]: Analyzing trace with hash -929238245, now seen corresponding path program 22 times [2021-06-05 13:33:02,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:02,088 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455642713] [2021-06-05 13:33:02,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:02,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:33:02,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:33:02,308 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:33:02,308 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455642713] [2021-06-05 13:33:02,308 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455642713] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:33:02,308 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:33:02,308 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:33:02,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179363142] [2021-06-05 13:33:02,308 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:33:02,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:33:02,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:33:02,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:33:02,309 INFO L87 Difference]: Start difference. First operand 13499 states and 71732 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:02,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:33:02,544 INFO L93 Difference]: Finished difference Result 32071 states and 161000 transitions. [2021-06-05 13:33:02,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:33:02,544 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:33:02,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:33:02,641 INFO L225 Difference]: With dead ends: 32071 [2021-06-05 13:33:02,641 INFO L226 Difference]: Without dead ends: 30993 [2021-06-05 13:33:02,641 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 214.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:33:03,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30993 states. [2021-06-05 13:33:03,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30993 to 13315. [2021-06-05 13:33:03,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13315 states, 13314 states have (on average 5.3201141655400335) internal successors, (70832), 13314 states have internal predecessors, (70832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:03,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13315 states to 13315 states and 70832 transitions. [2021-06-05 13:33:03,972 INFO L78 Accepts]: Start accepts. Automaton has 13315 states and 70832 transitions. Word has length 33 [2021-06-05 13:33:03,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:03,972 INFO L482 AbstractCegarLoop]: Abstraction has 13315 states and 70832 transitions. [2021-06-05 13:33:03,972 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:03,973 INFO L276 IsEmpty]: Start isEmpty. Operand 13315 states and 70832 transitions. [2021-06-05 13:33:03,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:03,999 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:03,999 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:03,999 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-05 13:33:03,999 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:03,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:03,999 INFO L82 PathProgramCache]: Analyzing trace with hash 857278205, now seen corresponding path program 23 times [2021-06-05 13:33:03,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:03,999 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016936582] [2021-06-05 13:33:03,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:04,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:33:04,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:33:04,236 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:33:04,236 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016936582] [2021-06-05 13:33:04,237 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016936582] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:33:04,237 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:33:04,237 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:33:04,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577173379] [2021-06-05 13:33:04,237 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:33:04,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:33:04,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:33:04,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:33:04,238 INFO L87 Difference]: Start difference. First operand 13315 states and 70832 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:04,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:33:04,493 INFO L93 Difference]: Finished difference Result 31888 states and 160245 transitions. [2021-06-05 13:33:04,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:33:04,493 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:33:04,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:33:04,592 INFO L225 Difference]: With dead ends: 31888 [2021-06-05 13:33:04,593 INFO L226 Difference]: Without dead ends: 31153 [2021-06-05 13:33:04,593 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 229.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:33:05,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31153 states. [2021-06-05 13:33:05,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31153 to 13491. [2021-06-05 13:33:05,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13491 states, 13490 states have (on average 5.308821349147516) internal successors, (71616), 13490 states have internal predecessors, (71616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:05,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13491 states to 13491 states and 71616 transitions. [2021-06-05 13:33:05,886 INFO L78 Accepts]: Start accepts. Automaton has 13491 states and 71616 transitions. Word has length 33 [2021-06-05 13:33:05,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:05,886 INFO L482 AbstractCegarLoop]: Abstraction has 13491 states and 71616 transitions. [2021-06-05 13:33:05,886 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:05,886 INFO L276 IsEmpty]: Start isEmpty. Operand 13491 states and 71616 transitions. [2021-06-05 13:33:05,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:05,914 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:05,914 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:05,914 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-06-05 13:33:05,914 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:05,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:05,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1096125605, now seen corresponding path program 24 times [2021-06-05 13:33:05,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:05,915 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354089109] [2021-06-05 13:33:05,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:05,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:33:06,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:33:06,139 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:33:06,139 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354089109] [2021-06-05 13:33:06,139 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354089109] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:33:06,139 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:33:06,139 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:33:06,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411166175] [2021-06-05 13:33:06,141 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:33:06,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:33:06,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:33:06,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:33:06,141 INFO L87 Difference]: Start difference. First operand 13491 states and 71616 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:06,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:33:06,415 INFO L93 Difference]: Finished difference Result 32047 states and 160820 transitions. [2021-06-05 13:33:06,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:33:06,416 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:33:06,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:33:06,773 INFO L225 Difference]: With dead ends: 32047 [2021-06-05 13:33:06,773 INFO L226 Difference]: Without dead ends: 30845 [2021-06-05 13:33:06,773 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 217.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:33:07,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30845 states. [2021-06-05 13:33:07,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30845 to 13183. [2021-06-05 13:33:07,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13183 states, 13182 states have (on average 5.333788499468973) internal successors, (70310), 13182 states have internal predecessors, (70310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:07,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13183 states to 13183 states and 70310 transitions. [2021-06-05 13:33:07,828 INFO L78 Accepts]: Start accepts. Automaton has 13183 states and 70310 transitions. Word has length 33 [2021-06-05 13:33:07,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:07,828 INFO L482 AbstractCegarLoop]: Abstraction has 13183 states and 70310 transitions. [2021-06-05 13:33:07,828 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:07,828 INFO L276 IsEmpty]: Start isEmpty. Operand 13183 states and 70310 transitions. [2021-06-05 13:33:07,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:07,854 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:07,855 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:07,855 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-05 13:33:07,855 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:07,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:07,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1900453661, now seen corresponding path program 25 times [2021-06-05 13:33:07,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:07,855 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002060557] [2021-06-05 13:33:07,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:07,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:33:08,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:33:08,046 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:33:08,046 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002060557] [2021-06-05 13:33:08,046 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002060557] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:33:08,046 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:33:08,046 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:33:08,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171684391] [2021-06-05 13:33:08,047 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:33:08,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:33:08,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:33:08,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:33:08,047 INFO L87 Difference]: Start difference. First operand 13183 states and 70310 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:08,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:33:08,489 INFO L93 Difference]: Finished difference Result 32010 states and 160923 transitions. [2021-06-05 13:33:08,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:33:08,489 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:33:08,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:33:08,589 INFO L225 Difference]: With dead ends: 32010 [2021-06-05 13:33:08,589 INFO L226 Difference]: Without dead ends: 31251 [2021-06-05 13:33:08,589 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 202.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:33:09,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31251 states. [2021-06-05 13:33:09,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31251 to 13457. [2021-06-05 13:33:09,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13457 states, 13456 states have (on average 5.32647146254459) internal successors, (71673), 13456 states have internal predecessors, (71673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:09,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13457 states to 13457 states and 71673 transitions. [2021-06-05 13:33:09,892 INFO L78 Accepts]: Start accepts. Automaton has 13457 states and 71673 transitions. Word has length 33 [2021-06-05 13:33:09,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:09,892 INFO L482 AbstractCegarLoop]: Abstraction has 13457 states and 71673 transitions. [2021-06-05 13:33:09,893 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:09,893 INFO L276 IsEmpty]: Start isEmpty. Operand 13457 states and 71673 transitions. [2021-06-05 13:33:09,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:09,921 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:09,922 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:09,922 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-06-05 13:33:09,922 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:09,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:09,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1053656699, now seen corresponding path program 26 times [2021-06-05 13:33:09,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:09,922 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557260634] [2021-06-05 13:33:09,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:09,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:33:10,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:33:10,113 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:33:10,113 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557260634] [2021-06-05 13:33:10,114 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557260634] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:33:10,114 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:33:10,114 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:33:10,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688806144] [2021-06-05 13:33:10,114 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:33:10,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:33:10,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:33:10,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:33:10,114 INFO L87 Difference]: Start difference. First operand 13457 states and 71673 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:10,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:33:10,367 INFO L93 Difference]: Finished difference Result 32002 states and 160775 transitions. [2021-06-05 13:33:10,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:33:10,367 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:33:10,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:33:10,464 INFO L225 Difference]: With dead ends: 32002 [2021-06-05 13:33:10,464 INFO L226 Difference]: Without dead ends: 31131 [2021-06-05 13:33:10,464 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 203.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:33:11,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31131 states. [2021-06-05 13:33:11,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31131 to 13337. [2021-06-05 13:33:11,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13337 states, 13336 states have (on average 5.333008398320336) internal successors, (71121), 13336 states have internal predecessors, (71121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:11,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13337 states to 13337 states and 71121 transitions. [2021-06-05 13:33:11,756 INFO L78 Accepts]: Start accepts. Automaton has 13337 states and 71121 transitions. Word has length 33 [2021-06-05 13:33:11,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:11,756 INFO L482 AbstractCegarLoop]: Abstraction has 13337 states and 71121 transitions. [2021-06-05 13:33:11,756 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:11,756 INFO L276 IsEmpty]: Start isEmpty. Operand 13337 states and 71121 transitions. [2021-06-05 13:33:11,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:11,783 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:11,783 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:11,783 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-06-05 13:33:11,783 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:11,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:11,784 INFO L82 PathProgramCache]: Analyzing trace with hash -643119331, now seen corresponding path program 27 times [2021-06-05 13:33:11,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:11,784 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379810021] [2021-06-05 13:33:11,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:11,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:33:11,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:33:11,999 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:33:11,999 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379810021] [2021-06-05 13:33:12,000 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379810021] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:33:12,000 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:33:12,000 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:33:12,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775916700] [2021-06-05 13:33:12,000 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:33:12,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:33:12,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:33:12,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:33:12,001 INFO L87 Difference]: Start difference. First operand 13337 states and 71121 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:12,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:33:12,277 INFO L93 Difference]: Finished difference Result 32221 states and 161822 transitions. [2021-06-05 13:33:12,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:33:12,278 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:33:12,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:33:12,375 INFO L225 Difference]: With dead ends: 32221 [2021-06-05 13:33:12,375 INFO L226 Difference]: Without dead ends: 31462 [2021-06-05 13:33:12,376 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 242.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:33:13,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31462 states. [2021-06-05 13:33:13,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31462 to 13525. [2021-06-05 13:33:13,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13525 states, 13524 states have (on average 5.319801833776989) internal successors, (71945), 13524 states have internal predecessors, (71945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:13,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13525 states to 13525 states and 71945 transitions. [2021-06-05 13:33:13,655 INFO L78 Accepts]: Start accepts. Automaton has 13525 states and 71945 transitions. Word has length 33 [2021-06-05 13:33:13,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:13,655 INFO L482 AbstractCegarLoop]: Abstraction has 13525 states and 71945 transitions. [2021-06-05 13:33:13,655 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:13,655 INFO L276 IsEmpty]: Start isEmpty. Operand 13525 states and 71945 transitions. [2021-06-05 13:33:13,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:13,682 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:13,682 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:13,682 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-06-05 13:33:13,682 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:13,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:13,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1744961309, now seen corresponding path program 28 times [2021-06-05 13:33:13,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:13,683 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887607818] [2021-06-05 13:33:13,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:13,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:33:13,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:33:13,898 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:33:13,898 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887607818] [2021-06-05 13:33:13,898 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887607818] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:33:13,898 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:33:13,898 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:33:13,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615047292] [2021-06-05 13:33:13,898 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:33:13,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:33:13,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:33:13,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:33:13,899 INFO L87 Difference]: Start difference. First operand 13525 states and 71945 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:14,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:33:14,146 INFO L93 Difference]: Finished difference Result 32356 states and 162293 transitions. [2021-06-05 13:33:14,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:33:14,147 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:33:14,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:33:14,502 INFO L225 Difference]: With dead ends: 32356 [2021-06-05 13:33:14,502 INFO L226 Difference]: Without dead ends: 31274 [2021-06-05 13:33:14,502 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 204.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:33:15,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31274 states. [2021-06-05 13:33:15,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31274 to 13337. [2021-06-05 13:33:15,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13337 states, 13336 states have (on average 5.326109778044391) internal successors, (71029), 13336 states have internal predecessors, (71029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:15,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13337 states to 13337 states and 71029 transitions. [2021-06-05 13:33:15,558 INFO L78 Accepts]: Start accepts. Automaton has 13337 states and 71029 transitions. Word has length 33 [2021-06-05 13:33:15,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:15,558 INFO L482 AbstractCegarLoop]: Abstraction has 13337 states and 71029 transitions. [2021-06-05 13:33:15,558 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:15,558 INFO L276 IsEmpty]: Start isEmpty. Operand 13337 states and 71029 transitions. [2021-06-05 13:33:15,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:15,585 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:15,585 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:15,585 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-06-05 13:33:15,585 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:15,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:15,586 INFO L82 PathProgramCache]: Analyzing trace with hash -1499867397, now seen corresponding path program 29 times [2021-06-05 13:33:15,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:15,586 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225961189] [2021-06-05 13:33:15,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:15,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:33:15,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:33:15,794 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:33:15,794 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225961189] [2021-06-05 13:33:15,795 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225961189] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:33:15,795 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:33:15,795 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:33:15,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076395530] [2021-06-05 13:33:15,795 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:33:15,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:33:15,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:33:15,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:33:15,796 INFO L87 Difference]: Start difference. First operand 13337 states and 71029 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:16,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:33:16,433 INFO L93 Difference]: Finished difference Result 32201 states and 161658 transitions. [2021-06-05 13:33:16,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:33:16,433 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:33:16,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:33:16,536 INFO L225 Difference]: With dead ends: 32201 [2021-06-05 13:33:16,536 INFO L226 Difference]: Without dead ends: 31450 [2021-06-05 13:33:16,537 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 245.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:33:17,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31450 states. [2021-06-05 13:33:17,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31450 to 13521. [2021-06-05 13:33:17,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13521 states, 13520 states have (on average 5.313683431952663) internal successors, (71841), 13520 states have internal predecessors, (71841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:17,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13521 states to 13521 states and 71841 transitions. [2021-06-05 13:33:17,851 INFO L78 Accepts]: Start accepts. Automaton has 13521 states and 71841 transitions. Word has length 33 [2021-06-05 13:33:17,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:17,851 INFO L482 AbstractCegarLoop]: Abstraction has 13521 states and 71841 transitions. [2021-06-05 13:33:17,851 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:17,851 INFO L276 IsEmpty]: Start isEmpty. Operand 13521 states and 71841 transitions. [2021-06-05 13:33:17,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:17,878 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:17,878 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:17,878 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-06-05 13:33:17,878 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:17,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:17,879 INFO L82 PathProgramCache]: Analyzing trace with hash -2117390755, now seen corresponding path program 30 times [2021-06-05 13:33:17,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:17,879 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89509143] [2021-06-05 13:33:17,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:33:18,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:33:18,085 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:33:18,085 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89509143] [2021-06-05 13:33:18,085 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89509143] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:33:18,086 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:33:18,086 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:33:18,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560856631] [2021-06-05 13:33:18,086 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:33:18,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:33:18,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:33:18,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:33:18,087 INFO L87 Difference]: Start difference. First operand 13521 states and 71841 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:18,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:33:18,325 INFO L93 Difference]: Finished difference Result 32344 states and 162161 transitions. [2021-06-05 13:33:18,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:33:18,325 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:33:18,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:33:18,424 INFO L225 Difference]: With dead ends: 32344 [2021-06-05 13:33:18,424 INFO L226 Difference]: Without dead ends: 31174 [2021-06-05 13:33:18,424 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 200.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:33:19,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31174 states. [2021-06-05 13:33:19,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31174 to 13245. [2021-06-05 13:33:19,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13245 states, 13244 states have (on average 5.33245243128964) internal successors, (70623), 13244 states have internal predecessors, (70623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:19,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13245 states to 13245 states and 70623 transitions. [2021-06-05 13:33:19,707 INFO L78 Accepts]: Start accepts. Automaton has 13245 states and 70623 transitions. Word has length 33 [2021-06-05 13:33:19,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:19,708 INFO L482 AbstractCegarLoop]: Abstraction has 13245 states and 70623 transitions. [2021-06-05 13:33:19,708 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:19,708 INFO L276 IsEmpty]: Start isEmpty. Operand 13245 states and 70623 transitions. [2021-06-05 13:33:19,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:19,735 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:19,735 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:19,735 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-06-05 13:33:19,735 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:19,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:19,735 INFO L82 PathProgramCache]: Analyzing trace with hash -474558307, now seen corresponding path program 31 times [2021-06-05 13:33:19,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:19,736 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510920677] [2021-06-05 13:33:19,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:19,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:33:19,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:33:19,901 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:33:19,901 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510920677] [2021-06-05 13:33:19,901 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510920677] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:33:19,901 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:33:19,901 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:33:19,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217859516] [2021-06-05 13:33:19,901 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:33:19,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:33:19,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:33:19,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:33:19,902 INFO L87 Difference]: Start difference. First operand 13245 states and 70623 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:20,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:33:20,135 INFO L93 Difference]: Finished difference Result 31721 states and 159483 transitions. [2021-06-05 13:33:20,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:33:20,135 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:33:20,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:33:20,230 INFO L225 Difference]: With dead ends: 31721 [2021-06-05 13:33:20,230 INFO L226 Difference]: Without dead ends: 30962 [2021-06-05 13:33:20,231 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 185.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:33:21,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30962 states. [2021-06-05 13:33:21,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30962 to 13425. [2021-06-05 13:33:21,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13425 states, 13424 states have (on average 5.322631108462455) internal successors, (71451), 13424 states have internal predecessors, (71451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:21,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13425 states to 13425 states and 71451 transitions. [2021-06-05 13:33:21,480 INFO L78 Accepts]: Start accepts. Automaton has 13425 states and 71451 transitions. Word has length 33 [2021-06-05 13:33:21,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:21,480 INFO L482 AbstractCegarLoop]: Abstraction has 13425 states and 71451 transitions. [2021-06-05 13:33:21,480 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:21,480 INFO L276 IsEmpty]: Start isEmpty. Operand 13425 states and 71451 transitions. [2021-06-05 13:33:21,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:21,506 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:21,506 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:21,506 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-06-05 13:33:21,506 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:21,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:21,507 INFO L82 PathProgramCache]: Analyzing trace with hash -1321355269, now seen corresponding path program 32 times [2021-06-05 13:33:21,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:21,507 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311204028] [2021-06-05 13:33:21,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:21,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:33:21,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:33:21,673 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:33:21,673 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311204028] [2021-06-05 13:33:21,673 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311204028] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:33:21,673 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:33:21,673 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:33:21,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115192541] [2021-06-05 13:33:21,673 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:33:21,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:33:21,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:33:21,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:33:21,674 INFO L87 Difference]: Start difference. First operand 13425 states and 71451 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:21,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:33:21,970 INFO L93 Difference]: Finished difference Result 31713 states and 159335 transitions. [2021-06-05 13:33:21,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:33:21,970 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:33:21,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:33:22,075 INFO L225 Difference]: With dead ends: 31713 [2021-06-05 13:33:22,075 INFO L226 Difference]: Without dead ends: 30842 [2021-06-05 13:33:22,075 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 192.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:33:23,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30842 states. [2021-06-05 13:33:23,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30842 to 13305. [2021-06-05 13:33:23,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13305 states, 13304 states have (on average 5.32914912808178) internal successors, (70899), 13304 states have internal predecessors, (70899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:23,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13305 states to 13305 states and 70899 transitions. [2021-06-05 13:33:23,396 INFO L78 Accepts]: Start accepts. Automaton has 13305 states and 70899 transitions. Word has length 33 [2021-06-05 13:33:23,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:23,396 INFO L482 AbstractCegarLoop]: Abstraction has 13305 states and 70899 transitions. [2021-06-05 13:33:23,396 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:23,397 INFO L276 IsEmpty]: Start isEmpty. Operand 13305 states and 70899 transitions. [2021-06-05 13:33:23,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:23,423 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:23,423 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:23,423 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-06-05 13:33:23,423 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:23,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:23,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1929909563, now seen corresponding path program 33 times [2021-06-05 13:33:23,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:23,424 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272060461] [2021-06-05 13:33:23,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:33:23,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:33:23,607 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:33:23,607 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272060461] [2021-06-05 13:33:23,607 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272060461] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:33:23,607 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:33:23,607 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:33:23,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558229207] [2021-06-05 13:33:23,608 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:33:23,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:33:23,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:33:23,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:33:23,608 INFO L87 Difference]: Start difference. First operand 13305 states and 70899 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:24,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:33:24,074 INFO L93 Difference]: Finished difference Result 31739 states and 159484 transitions. [2021-06-05 13:33:24,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:33:24,074 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:33:24,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:33:24,171 INFO L225 Difference]: With dead ends: 31739 [2021-06-05 13:33:24,171 INFO L226 Difference]: Without dead ends: 30980 [2021-06-05 13:33:24,171 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 193.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:33:24,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30980 states. [2021-06-05 13:33:25,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30980 to 13429. [2021-06-05 13:33:25,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13429 states, 13428 states have (on average 5.317470956210903) internal successors, (71403), 13428 states have internal predecessors, (71403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:25,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13429 states to 13429 states and 71403 transitions. [2021-06-05 13:33:25,246 INFO L78 Accepts]: Start accepts. Automaton has 13429 states and 71403 transitions. Word has length 33 [2021-06-05 13:33:25,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:25,246 INFO L482 AbstractCegarLoop]: Abstraction has 13429 states and 71403 transitions. [2021-06-05 13:33:25,246 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:25,246 INFO L276 IsEmpty]: Start isEmpty. Operand 13429 states and 71403 transitions. [2021-06-05 13:33:25,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:25,273 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:25,273 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:25,273 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-06-05 13:33:25,273 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:25,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:25,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1939317445, now seen corresponding path program 34 times [2021-06-05 13:33:25,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:25,273 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960372932] [2021-06-05 13:33:25,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:25,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:33:25,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:33:25,617 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:33:25,617 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960372932] [2021-06-05 13:33:25,618 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960372932] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:33:25,618 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:33:25,618 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:33:25,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011787685] [2021-06-05 13:33:25,618 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:33:25,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:33:25,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:33:25,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:33:25,618 INFO L87 Difference]: Start difference. First operand 13429 states and 71403 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:25,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:33:25,879 INFO L93 Difference]: Finished difference Result 31745 states and 159377 transitions. [2021-06-05 13:33:25,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:33:25,879 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:33:25,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:33:25,977 INFO L225 Difference]: With dead ends: 31745 [2021-06-05 13:33:25,977 INFO L226 Difference]: Without dead ends: 30856 [2021-06-05 13:33:25,977 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 361.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:33:26,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30856 states. [2021-06-05 13:33:27,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30856 to 13305. [2021-06-05 13:33:27,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13305 states, 13304 states have (on average 5.324639206253758) internal successors, (70839), 13304 states have internal predecessors, (70839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:27,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13305 states to 13305 states and 70839 transitions. [2021-06-05 13:33:27,241 INFO L78 Accepts]: Start accepts. Automaton has 13305 states and 70839 transitions. Word has length 33 [2021-06-05 13:33:27,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:27,241 INFO L482 AbstractCegarLoop]: Abstraction has 13305 states and 70839 transitions. [2021-06-05 13:33:27,241 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:27,241 INFO L276 IsEmpty]: Start isEmpty. Operand 13305 states and 70839 transitions. [2021-06-05 13:33:27,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:27,269 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:27,269 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:27,269 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-06-05 13:33:27,269 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:27,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:27,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1073161497, now seen corresponding path program 35 times [2021-06-05 13:33:27,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:27,269 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818169302] [2021-06-05 13:33:27,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:27,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:33:27,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:33:27,447 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:33:27,447 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818169302] [2021-06-05 13:33:27,447 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818169302] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:33:27,447 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:33:27,447 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:33:27,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71654512] [2021-06-05 13:33:27,447 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:33:27,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:33:27,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:33:27,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:33:27,448 INFO L87 Difference]: Start difference. First operand 13305 states and 70839 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:27,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:33:27,712 INFO L93 Difference]: Finished difference Result 31719 states and 159352 transitions. [2021-06-05 13:33:27,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:33:27,713 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:33:27,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:33:27,810 INFO L225 Difference]: With dead ends: 31719 [2021-06-05 13:33:27,810 INFO L226 Difference]: Without dead ends: 30968 [2021-06-05 13:33:27,810 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 188.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:33:28,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30968 states. [2021-06-05 13:33:29,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30968 to 13425. [2021-06-05 13:33:29,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13425 states, 13424 states have (on average 5.31369189511323) internal successors, (71331), 13424 states have internal predecessors, (71331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:29,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13425 states to 13425 states and 71331 transitions. [2021-06-05 13:33:29,065 INFO L78 Accepts]: Start accepts. Automaton has 13425 states and 71331 transitions. Word has length 33 [2021-06-05 13:33:29,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:29,065 INFO L482 AbstractCegarLoop]: Abstraction has 13425 states and 71331 transitions. [2021-06-05 13:33:29,065 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:29,065 INFO L276 IsEmpty]: Start isEmpty. Operand 13425 states and 71331 transitions. [2021-06-05 13:33:29,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:29,092 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:29,092 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:29,092 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-06-05 13:33:29,092 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:29,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:29,093 INFO L82 PathProgramCache]: Analyzing trace with hash -237419525, now seen corresponding path program 36 times [2021-06-05 13:33:29,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:29,093 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691189168] [2021-06-05 13:33:29,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:29,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:33:29,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:33:29,284 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:33:29,284 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691189168] [2021-06-05 13:33:29,285 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691189168] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:33:29,285 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:33:29,285 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:33:29,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882910456] [2021-06-05 13:33:29,285 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:33:29,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:33:29,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:33:29,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:33:29,286 INFO L87 Difference]: Start difference. First operand 13425 states and 71331 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:29,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:33:29,586 INFO L93 Difference]: Finished difference Result 31733 states and 159277 transitions. [2021-06-05 13:33:29,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:33:29,586 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:33:29,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:33:29,710 INFO L225 Difference]: With dead ends: 31733 [2021-06-05 13:33:29,710 INFO L226 Difference]: Without dead ends: 30788 [2021-06-05 13:33:29,711 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 214.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:33:30,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30788 states. [2021-06-05 13:33:31,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30788 to 13245. [2021-06-05 13:33:31,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13245 states, 13244 states have (on average 5.3301872546058595) internal successors, (70593), 13244 states have internal predecessors, (70593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:31,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13245 states to 13245 states and 70593 transitions. [2021-06-05 13:33:31,139 INFO L78 Accepts]: Start accepts. Automaton has 13245 states and 70593 transitions. Word has length 33 [2021-06-05 13:33:31,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:31,139 INFO L482 AbstractCegarLoop]: Abstraction has 13245 states and 70593 transitions. [2021-06-05 13:33:31,139 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:31,139 INFO L276 IsEmpty]: Start isEmpty. Operand 13245 states and 70593 transitions. [2021-06-05 13:33:31,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:31,167 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:31,168 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:31,168 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-06-05 13:33:31,168 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:31,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:31,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1711091003, now seen corresponding path program 37 times [2021-06-05 13:33:31,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:31,168 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838785769] [2021-06-05 13:33:31,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:31,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:33:31,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:33:31,346 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:33:31,346 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838785769] [2021-06-05 13:33:31,346 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838785769] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:33:31,346 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:33:31,346 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:33:31,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080301058] [2021-06-05 13:33:31,346 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:33:31,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:33:31,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:33:31,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:33:31,347 INFO L87 Difference]: Start difference. First operand 13245 states and 70593 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:31,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:33:31,595 INFO L93 Difference]: Finished difference Result 32344 states and 162302 transitions. [2021-06-05 13:33:31,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:33:31,595 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:33:31,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:33:31,692 INFO L225 Difference]: With dead ends: 32344 [2021-06-05 13:33:31,692 INFO L226 Difference]: Without dead ends: 31585 [2021-06-05 13:33:31,692 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 189.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:33:32,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31585 states. [2021-06-05 13:33:32,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31585 to 13559. [2021-06-05 13:33:33,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13559 states, 13558 states have (on average 5.316565865171854) internal successors, (72082), 13558 states have internal predecessors, (72082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:33,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13559 states to 13559 states and 72082 transitions. [2021-06-05 13:33:33,061 INFO L78 Accepts]: Start accepts. Automaton has 13559 states and 72082 transitions. Word has length 33 [2021-06-05 13:33:33,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:33,061 INFO L482 AbstractCegarLoop]: Abstraction has 13559 states and 72082 transitions. [2021-06-05 13:33:33,061 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:33,061 INFO L276 IsEmpty]: Start isEmpty. Operand 13559 states and 72082 transitions. [2021-06-05 13:33:33,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:33,088 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:33,088 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:33,088 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-06-05 13:33:33,088 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:33,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:33,088 INFO L82 PathProgramCache]: Analyzing trace with hash -195795653, now seen corresponding path program 38 times [2021-06-05 13:33:33,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:33,088 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623859577] [2021-06-05 13:33:33,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:33,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:33:33,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:33:33,294 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:33:33,294 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623859577] [2021-06-05 13:33:33,294 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623859577] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:33:33,295 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:33:33,295 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:33:33,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664124027] [2021-06-05 13:33:33,295 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:33:33,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:33:33,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:33:33,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:33:33,295 INFO L87 Difference]: Start difference. First operand 13559 states and 72082 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:33,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:33:33,945 INFO L93 Difference]: Finished difference Result 32479 states and 162773 transitions. [2021-06-05 13:33:33,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:33:33,945 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:33:33,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:33:34,045 INFO L225 Difference]: With dead ends: 32479 [2021-06-05 13:33:34,045 INFO L226 Difference]: Without dead ends: 31397 [2021-06-05 13:33:34,046 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 194.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:33:34,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31397 states. [2021-06-05 13:33:35,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31397 to 13371. [2021-06-05 13:33:35,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13371 states, 13370 states have (on average 5.3226626776365) internal successors, (71164), 13370 states have internal predecessors, (71164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:35,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13371 states to 13371 states and 71164 transitions. [2021-06-05 13:33:35,400 INFO L78 Accepts]: Start accepts. Automaton has 13371 states and 71164 transitions. Word has length 33 [2021-06-05 13:33:35,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:35,400 INFO L482 AbstractCegarLoop]: Abstraction has 13371 states and 71164 transitions. [2021-06-05 13:33:35,400 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:35,400 INFO L276 IsEmpty]: Start isEmpty. Operand 13371 states and 71164 transitions. [2021-06-05 13:33:35,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:35,438 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:35,438 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:35,438 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-06-05 13:33:35,438 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:35,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:35,439 INFO L82 PathProgramCache]: Analyzing trace with hash -874274531, now seen corresponding path program 39 times [2021-06-05 13:33:35,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:35,439 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838098053] [2021-06-05 13:33:35,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:35,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:33:35,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:33:35,614 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:33:35,614 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838098053] [2021-06-05 13:33:35,614 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838098053] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:33:35,614 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:33:35,614 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:33:35,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731335413] [2021-06-05 13:33:35,614 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:33:35,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:33:35,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:33:35,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:33:35,615 INFO L87 Difference]: Start difference. First operand 13371 states and 71164 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:35,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:33:35,903 INFO L93 Difference]: Finished difference Result 32151 states and 161310 transitions. [2021-06-05 13:33:35,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:33:35,903 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:33:35,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:33:36,002 INFO L225 Difference]: With dead ends: 32151 [2021-06-05 13:33:36,002 INFO L226 Difference]: Without dead ends: 31392 [2021-06-05 13:33:36,002 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 181.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:33:36,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31392 states. [2021-06-05 13:33:37,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31392 to 13495. [2021-06-05 13:33:37,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13495 states, 13494 states have (on average 5.311101230176375) internal successors, (71668), 13494 states have internal predecessors, (71668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:37,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13495 states to 13495 states and 71668 transitions. [2021-06-05 13:33:37,277 INFO L78 Accepts]: Start accepts. Automaton has 13495 states and 71668 transitions. Word has length 33 [2021-06-05 13:33:37,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:37,277 INFO L482 AbstractCegarLoop]: Abstraction has 13495 states and 71668 transitions. [2021-06-05 13:33:37,277 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:37,277 INFO L276 IsEmpty]: Start isEmpty. Operand 13495 states and 71668 transitions. [2021-06-05 13:33:37,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:37,305 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:37,305 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:37,305 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-06-05 13:33:37,305 INFO L430 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:37,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:37,305 INFO L82 PathProgramCache]: Analyzing trace with hash 1818395963, now seen corresponding path program 40 times [2021-06-05 13:33:37,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:37,305 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876358021] [2021-06-05 13:33:37,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:33:37,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:33:37,469 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:33:37,469 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876358021] [2021-06-05 13:33:37,469 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876358021] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:33:37,469 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:33:37,469 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:33:37,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510412772] [2021-06-05 13:33:37,469 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:33:37,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:33:37,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:33:37,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:33:37,469 INFO L87 Difference]: Start difference. First operand 13495 states and 71668 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:37,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:33:37,723 INFO L93 Difference]: Finished difference Result 32157 states and 161203 transitions. [2021-06-05 13:33:37,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:33:37,728 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:33:37,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:33:37,828 INFO L225 Difference]: With dead ends: 32157 [2021-06-05 13:33:37,828 INFO L226 Difference]: Without dead ends: 31268 [2021-06-05 13:33:37,828 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 174.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:33:38,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31268 states. [2021-06-05 13:33:39,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31268 to 13371. [2021-06-05 13:33:39,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13371 states, 13370 states have (on average 5.318025430067315) internal successors, (71102), 13370 states have internal predecessors, (71102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:39,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13371 states to 13371 states and 71102 transitions. [2021-06-05 13:33:39,103 INFO L78 Accepts]: Start accepts. Automaton has 13371 states and 71102 transitions. Word has length 33 [2021-06-05 13:33:39,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:39,103 INFO L482 AbstractCegarLoop]: Abstraction has 13371 states and 71102 transitions. [2021-06-05 13:33:39,103 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:39,103 INFO L276 IsEmpty]: Start isEmpty. Operand 13371 states and 71102 transitions. [2021-06-05 13:33:39,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:39,130 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:39,130 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:39,130 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-06-05 13:33:39,130 INFO L430 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:39,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:39,130 INFO L82 PathProgramCache]: Analyzing trace with hash 918727995, now seen corresponding path program 41 times [2021-06-05 13:33:39,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:39,131 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550316485] [2021-06-05 13:33:39,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:39,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:33:39,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:33:39,291 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:33:39,291 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550316485] [2021-06-05 13:33:39,291 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550316485] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:33:39,291 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:33:39,291 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:33:39,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696805093] [2021-06-05 13:33:39,292 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:33:39,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:33:39,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:33:39,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:33:39,292 INFO L87 Difference]: Start difference. First operand 13371 states and 71102 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:39,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:33:39,531 INFO L93 Difference]: Finished difference Result 32552 states and 163024 transitions. [2021-06-05 13:33:39,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:33:39,531 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:33:39,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:33:39,630 INFO L225 Difference]: With dead ends: 32552 [2021-06-05 13:33:39,630 INFO L226 Difference]: Without dead ends: 31658 [2021-06-05 13:33:39,630 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 153.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:33:40,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31658 states. [2021-06-05 13:33:40,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31658 to 13626. [2021-06-05 13:33:40,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13626 states, 13625 states have (on average 5.293577981651376) internal successors, (72125), 13625 states have internal predecessors, (72125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:40,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13626 states to 13626 states and 72125 transitions. [2021-06-05 13:33:40,896 INFO L78 Accepts]: Start accepts. Automaton has 13626 states and 72125 transitions. Word has length 33 [2021-06-05 13:33:40,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:40,897 INFO L482 AbstractCegarLoop]: Abstraction has 13626 states and 72125 transitions. [2021-06-05 13:33:40,897 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:40,897 INFO L276 IsEmpty]: Start isEmpty. Operand 13626 states and 72125 transitions. [2021-06-05 13:33:40,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:40,923 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:40,923 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:40,924 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-06-05 13:33:40,924 INFO L430 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:40,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:40,924 INFO L82 PathProgramCache]: Analyzing trace with hash 437825949, now seen corresponding path program 42 times [2021-06-05 13:33:40,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:40,924 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655623617] [2021-06-05 13:33:40,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:40,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:33:41,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:33:41,090 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:33:41,090 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655623617] [2021-06-05 13:33:41,090 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655623617] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:33:41,090 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:33:41,090 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:33:41,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403580148] [2021-06-05 13:33:41,090 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:33:41,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:33:41,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:33:41,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:33:41,091 INFO L87 Difference]: Start difference. First operand 13626 states and 72125 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:41,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:33:41,343 INFO L93 Difference]: Finished difference Result 32423 states and 162255 transitions. [2021-06-05 13:33:41,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:33:41,343 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:33:41,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:33:41,694 INFO L225 Difference]: With dead ends: 32423 [2021-06-05 13:33:41,694 INFO L226 Difference]: Without dead ends: 31277 [2021-06-05 13:33:41,694 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 201.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:33:42,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31277 states. [2021-06-05 13:33:42,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31277 to 13245. [2021-06-05 13:33:42,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13245 states, 13244 states have (on average 5.325505889459378) internal successors, (70531), 13244 states have internal predecessors, (70531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:42,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13245 states to 13245 states and 70531 transitions. [2021-06-05 13:33:42,751 INFO L78 Accepts]: Start accepts. Automaton has 13245 states and 70531 transitions. Word has length 33 [2021-06-05 13:33:42,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:42,751 INFO L482 AbstractCegarLoop]: Abstraction has 13245 states and 70531 transitions. [2021-06-05 13:33:42,751 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:42,751 INFO L276 IsEmpty]: Start isEmpty. Operand 13245 states and 70531 transitions. [2021-06-05 13:33:42,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:42,778 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:42,778 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:42,778 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-06-05 13:33:42,778 INFO L430 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:42,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:42,779 INFO L82 PathProgramCache]: Analyzing trace with hash -118733415, now seen corresponding path program 43 times [2021-06-05 13:33:42,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:42,779 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105314744] [2021-06-05 13:33:42,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:42,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:33:42,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:33:42,980 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:33:42,980 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105314744] [2021-06-05 13:33:42,980 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105314744] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:33:42,980 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:33:42,980 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:33:42,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362536112] [2021-06-05 13:33:42,981 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:33:42,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:33:42,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:33:42,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:33:42,981 INFO L87 Difference]: Start difference. First operand 13245 states and 70531 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:43,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:33:43,497 INFO L93 Difference]: Finished difference Result 32306 states and 162099 transitions. [2021-06-05 13:33:43,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:33:43,498 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:33:43,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:33:43,620 INFO L225 Difference]: With dead ends: 32306 [2021-06-05 13:33:43,620 INFO L226 Difference]: Without dead ends: 31555 [2021-06-05 13:33:43,620 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 226.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:33:44,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31555 states. [2021-06-05 13:33:44,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31555 to 13553. [2021-06-05 13:33:44,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13553 states, 13552 states have (on average 5.312795159386068) internal successors, (71999), 13552 states have internal predecessors, (71999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:44,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13553 states to 13553 states and 71999 transitions. [2021-06-05 13:33:44,936 INFO L78 Accepts]: Start accepts. Automaton has 13553 states and 71999 transitions. Word has length 33 [2021-06-05 13:33:44,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:44,937 INFO L482 AbstractCegarLoop]: Abstraction has 13553 states and 71999 transitions. [2021-06-05 13:33:44,937 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:44,937 INFO L276 IsEmpty]: Start isEmpty. Operand 13553 states and 71999 transitions. [2021-06-05 13:33:44,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:44,964 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:44,964 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:44,964 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-06-05 13:33:44,964 INFO L430 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:44,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:44,965 INFO L82 PathProgramCache]: Analyzing trace with hash -736256773, now seen corresponding path program 44 times [2021-06-05 13:33:44,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:44,965 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312838000] [2021-06-05 13:33:44,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:44,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:33:45,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:33:45,179 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:33:45,179 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312838000] [2021-06-05 13:33:45,179 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312838000] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:33:45,179 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:33:45,179 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:33:45,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64897179] [2021-06-05 13:33:45,179 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:33:45,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:33:45,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:33:45,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:33:45,180 INFO L87 Difference]: Start difference. First operand 13553 states and 71999 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:45,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:33:45,404 INFO L93 Difference]: Finished difference Result 32449 states and 162602 transitions. [2021-06-05 13:33:45,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:33:45,404 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:33:45,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:33:45,506 INFO L225 Difference]: With dead ends: 32449 [2021-06-05 13:33:45,506 INFO L226 Difference]: Without dead ends: 31371 [2021-06-05 13:33:45,506 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 202.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:33:46,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31371 states. [2021-06-05 13:33:46,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31371 to 13369. [2021-06-05 13:33:46,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13369 states, 13368 states have (on average 5.318297426690604) internal successors, (71095), 13368 states have internal predecessors, (71095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:46,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13369 states to 13369 states and 71095 transitions. [2021-06-05 13:33:46,802 INFO L78 Accepts]: Start accepts. Automaton has 13369 states and 71095 transitions. Word has length 33 [2021-06-05 13:33:46,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:46,802 INFO L482 AbstractCegarLoop]: Abstraction has 13369 states and 71095 transitions. [2021-06-05 13:33:46,802 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:46,802 INFO L276 IsEmpty]: Start isEmpty. Operand 13369 states and 71095 transitions. [2021-06-05 13:33:46,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:46,829 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:46,829 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:46,829 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-06-05 13:33:46,829 INFO L430 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:46,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:46,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1590868347, now seen corresponding path program 45 times [2021-06-05 13:33:46,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:46,830 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667985118] [2021-06-05 13:33:46,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:46,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:33:47,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:33:47,018 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:33:47,018 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667985118] [2021-06-05 13:33:47,018 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667985118] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:33:47,018 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:33:47,018 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:33:47,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609491704] [2021-06-05 13:33:47,018 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:33:47,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:33:47,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:33:47,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:33:47,019 INFO L87 Difference]: Start difference. First operand 13369 states and 71095 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:47,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:33:47,291 INFO L93 Difference]: Finished difference Result 32113 states and 161109 transitions. [2021-06-05 13:33:47,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:33:47,291 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:33:47,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:33:47,393 INFO L225 Difference]: With dead ends: 32113 [2021-06-05 13:33:47,393 INFO L226 Difference]: Without dead ends: 31362 [2021-06-05 13:33:47,393 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 203.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:33:48,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31362 states. [2021-06-05 13:33:48,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31362 to 13489. [2021-06-05 13:33:48,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13489 states, 13488 states have (on average 5.307458481613286) internal successors, (71587), 13488 states have internal predecessors, (71587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:48,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13489 states to 13489 states and 71587 transitions. [2021-06-05 13:33:48,697 INFO L78 Accepts]: Start accepts. Automaton has 13489 states and 71587 transitions. Word has length 33 [2021-06-05 13:33:48,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:48,697 INFO L482 AbstractCegarLoop]: Abstraction has 13489 states and 71587 transitions. [2021-06-05 13:33:48,697 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:48,697 INFO L276 IsEmpty]: Start isEmpty. Operand 13489 states and 71587 transitions. [2021-06-05 13:33:48,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:48,725 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:48,725 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:48,725 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-06-05 13:33:48,725 INFO L430 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:48,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:48,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1747749765, now seen corresponding path program 46 times [2021-06-05 13:33:48,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:48,726 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663096263] [2021-06-05 13:33:48,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:33:48,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:33:48,908 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:33:48,908 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663096263] [2021-06-05 13:33:48,908 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663096263] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:33:48,908 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:33:48,908 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:33:48,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744248752] [2021-06-05 13:33:48,909 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:33:48,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:33:48,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:33:48,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:33:48,909 INFO L87 Difference]: Start difference. First operand 13489 states and 71587 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:49,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:33:49,159 INFO L93 Difference]: Finished difference Result 32127 states and 161034 transitions. [2021-06-05 13:33:49,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:33:49,160 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:33:49,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:33:49,260 INFO L225 Difference]: With dead ends: 32127 [2021-06-05 13:33:49,260 INFO L226 Difference]: Without dead ends: 31242 [2021-06-05 13:33:49,260 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 199.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:33:50,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31242 states. [2021-06-05 13:33:50,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31242 to 13369. [2021-06-05 13:33:50,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13369 states, 13368 states have (on average 5.313809096349491) internal successors, (71035), 13368 states have internal predecessors, (71035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:50,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13369 states to 13369 states and 71035 transitions. [2021-06-05 13:33:50,541 INFO L78 Accepts]: Start accepts. Automaton has 13369 states and 71035 transitions. Word has length 33 [2021-06-05 13:33:50,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:50,541 INFO L482 AbstractCegarLoop]: Abstraction has 13369 states and 71035 transitions. [2021-06-05 13:33:50,541 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:50,541 INFO L276 IsEmpty]: Start isEmpty. Operand 13369 states and 71035 transitions. [2021-06-05 13:33:50,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:50,568 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:50,569 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:50,569 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-06-05 13:33:50,569 INFO L430 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:50,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:50,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1779201187, now seen corresponding path program 47 times [2021-06-05 13:33:50,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:50,569 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095503513] [2021-06-05 13:33:50,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:50,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:33:50,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:33:50,752 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:33:50,752 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095503513] [2021-06-05 13:33:50,753 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095503513] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:33:50,753 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:33:50,753 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:33:50,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330610160] [2021-06-05 13:33:50,753 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:33:50,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:33:50,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:33:50,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:33:50,754 INFO L87 Difference]: Start difference. First operand 13369 states and 71035 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:51,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:33:51,263 INFO L93 Difference]: Finished difference Result 32534 states and 162897 transitions. [2021-06-05 13:33:51,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:33:51,263 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:33:51,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:33:51,363 INFO L225 Difference]: With dead ends: 32534 [2021-06-05 13:33:51,363 INFO L226 Difference]: Without dead ends: 31640 [2021-06-05 13:33:51,363 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 184.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:33:52,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31640 states. [2021-06-05 13:33:52,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31640 to 13624. [2021-06-05 13:33:52,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13624 states, 13623 states have (on average 5.289436981575277) internal successors, (72058), 13623 states have internal predecessors, (72058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:52,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13624 states to 13624 states and 72058 transitions. [2021-06-05 13:33:52,466 INFO L78 Accepts]: Start accepts. Automaton has 13624 states and 72058 transitions. Word has length 33 [2021-06-05 13:33:52,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:52,467 INFO L482 AbstractCegarLoop]: Abstraction has 13624 states and 72058 transitions. [2021-06-05 13:33:52,467 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:52,467 INFO L276 IsEmpty]: Start isEmpty. Operand 13624 states and 72058 transitions. [2021-06-05 13:33:52,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:52,496 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:52,496 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:52,496 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-06-05 13:33:52,496 INFO L430 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:52,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:52,496 INFO L82 PathProgramCache]: Analyzing trace with hash 492704571, now seen corresponding path program 48 times [2021-06-05 13:33:52,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:52,496 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702984391] [2021-06-05 13:33:52,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:52,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:33:52,832 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-06-05 13:33:52,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:33:52,859 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:33:52,859 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702984391] [2021-06-05 13:33:52,859 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702984391] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:33:52,859 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:33:52,859 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:33:52,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346534469] [2021-06-05 13:33:52,860 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:33:52,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:33:52,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:33:52,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:33:52,860 INFO L87 Difference]: Start difference. First operand 13624 states and 72058 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:53,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:33:53,096 INFO L93 Difference]: Finished difference Result 32405 states and 162128 transitions. [2021-06-05 13:33:53,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:33:53,097 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:33:53,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:33:53,194 INFO L225 Difference]: With dead ends: 32405 [2021-06-05 13:33:53,195 INFO L226 Difference]: Without dead ends: 31199 [2021-06-05 13:33:53,195 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 380.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:33:53,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31199 states. [2021-06-05 13:33:54,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31199 to 13183. [2021-06-05 13:33:54,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13183 states, 13182 states have (on average 5.331512668790776) internal successors, (70280), 13182 states have internal predecessors, (70280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:54,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13183 states to 13183 states and 70280 transitions. [2021-06-05 13:33:54,476 INFO L78 Accepts]: Start accepts. Automaton has 13183 states and 70280 transitions. Word has length 33 [2021-06-05 13:33:54,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:54,476 INFO L482 AbstractCegarLoop]: Abstraction has 13183 states and 70280 transitions. [2021-06-05 13:33:54,476 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:54,476 INFO L276 IsEmpty]: Start isEmpty. Operand 13183 states and 70280 transitions. [2021-06-05 13:33:54,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:54,502 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:54,502 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:54,502 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-06-05 13:33:54,502 INFO L430 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:54,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:54,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1981905761, now seen corresponding path program 49 times [2021-06-05 13:33:54,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:54,503 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174791015] [2021-06-05 13:33:54,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:54,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:33:54,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:33:54,665 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:33:54,665 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174791015] [2021-06-05 13:33:54,665 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174791015] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:33:54,665 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:33:54,665 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:33:54,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749536327] [2021-06-05 13:33:54,666 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:33:54,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:33:54,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:33:54,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:33:54,666 INFO L87 Difference]: Start difference. First operand 13183 states and 70280 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:54,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:33:54,901 INFO L93 Difference]: Finished difference Result 31009 states and 156157 transitions. [2021-06-05 13:33:54,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:33:54,901 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:33:54,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:33:54,997 INFO L225 Difference]: With dead ends: 31009 [2021-06-05 13:33:54,997 INFO L226 Difference]: Without dead ends: 30250 [2021-06-05 13:33:54,997 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 181.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:33:55,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30250 states. [2021-06-05 13:33:56,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30250 to 13387. [2021-06-05 13:33:56,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13387 states, 13386 states have (on average 5.323472284476319) internal successors, (71260), 13386 states have internal predecessors, (71260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:56,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13387 states to 13387 states and 71260 transitions. [2021-06-05 13:33:56,245 INFO L78 Accepts]: Start accepts. Automaton has 13387 states and 71260 transitions. Word has length 33 [2021-06-05 13:33:56,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:56,245 INFO L482 AbstractCegarLoop]: Abstraction has 13387 states and 71260 transitions. [2021-06-05 13:33:56,245 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:56,245 INFO L276 IsEmpty]: Start isEmpty. Operand 13387 states and 71260 transitions. [2021-06-05 13:33:56,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:56,273 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:56,273 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:56,273 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-06-05 13:33:56,273 INFO L430 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:56,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:56,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1466264573, now seen corresponding path program 50 times [2021-06-05 13:33:56,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:56,273 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990110010] [2021-06-05 13:33:56,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:56,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:33:56,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:33:56,455 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:33:56,455 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990110010] [2021-06-05 13:33:56,455 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990110010] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:33:56,455 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:33:56,455 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:33:56,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494459054] [2021-06-05 13:33:56,455 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:33:56,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:33:56,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:33:56,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:33:56,456 INFO L87 Difference]: Start difference. First operand 13387 states and 71260 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:56,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:33:56,685 INFO L93 Difference]: Finished difference Result 31001 states and 156009 transitions. [2021-06-05 13:33:56,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:33:56,686 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:33:56,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:33:56,779 INFO L225 Difference]: With dead ends: 31001 [2021-06-05 13:33:56,780 INFO L226 Difference]: Without dead ends: 30130 [2021-06-05 13:33:56,780 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 192.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:33:57,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30130 states. [2021-06-05 13:33:57,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30130 to 13267. [2021-06-05 13:33:58,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13267 states, 13266 states have (on average 5.33031810643751) internal successors, (70712), 13266 states have internal predecessors, (70712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:58,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13267 states to 13267 states and 70712 transitions. [2021-06-05 13:33:58,051 INFO L78 Accepts]: Start accepts. Automaton has 13267 states and 70712 transitions. Word has length 33 [2021-06-05 13:33:58,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:58,051 INFO L482 AbstractCegarLoop]: Abstraction has 13267 states and 70712 transitions. [2021-06-05 13:33:58,051 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:58,051 INFO L276 IsEmpty]: Start isEmpty. Operand 13267 states and 70712 transitions. [2021-06-05 13:33:58,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:58,079 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:58,079 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:58,079 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-06-05 13:33:58,079 INFO L430 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:58,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:58,079 INFO L82 PathProgramCache]: Analyzing trace with hash 289999997, now seen corresponding path program 51 times [2021-06-05 13:33:58,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:58,080 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315052207] [2021-06-05 13:33:58,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:58,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:33:58,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:33:58,240 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:33:58,240 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315052207] [2021-06-05 13:33:58,240 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315052207] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:33:58,240 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:33:58,240 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:33:58,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256274730] [2021-06-05 13:33:58,240 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:33:58,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:33:58,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:33:58,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:33:58,241 INFO L87 Difference]: Start difference. First operand 13267 states and 70712 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:58,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:33:58,491 INFO L93 Difference]: Finished difference Result 30985 states and 156001 transitions. [2021-06-05 13:33:58,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:33:58,491 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:33:58,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:33:58,586 INFO L225 Difference]: With dead ends: 30985 [2021-06-05 13:33:58,586 INFO L226 Difference]: Without dead ends: 30226 [2021-06-05 13:33:58,587 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 178.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:33:59,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30226 states. [2021-06-05 13:33:59,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30226 to 13379. [2021-06-05 13:33:59,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13379 states, 13378 states have (on average 5.320376737927941) internal successors, (71176), 13378 states have internal predecessors, (71176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:59,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13379 states to 13379 states and 71176 transitions. [2021-06-05 13:33:59,908 INFO L78 Accepts]: Start accepts. Automaton has 13379 states and 71176 transitions. Word has length 33 [2021-06-05 13:33:59,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:33:59,908 INFO L482 AbstractCegarLoop]: Abstraction has 13379 states and 71176 transitions. [2021-06-05 13:33:59,908 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:33:59,908 INFO L276 IsEmpty]: Start isEmpty. Operand 13379 states and 71176 transitions. [2021-06-05 13:33:59,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:33:59,936 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:33:59,936 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:33:59,936 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-06-05 13:33:59,936 INFO L430 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:33:59,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:33:59,936 INFO L82 PathProgramCache]: Analyzing trace with hash -506026883, now seen corresponding path program 52 times [2021-06-05 13:33:59,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:33:59,937 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793361426] [2021-06-05 13:33:59,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:33:59,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:00,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:00,113 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:00,113 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793361426] [2021-06-05 13:34:00,113 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793361426] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:00,113 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:00,113 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:00,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378992988] [2021-06-05 13:34:00,113 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:00,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:00,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:00,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:00,114 INFO L87 Difference]: Start difference. First operand 13379 states and 71176 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:00,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:00,413 INFO L93 Difference]: Finished difference Result 30961 states and 155797 transitions. [2021-06-05 13:34:00,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:00,414 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:00,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:00,749 INFO L225 Difference]: With dead ends: 30961 [2021-06-05 13:34:00,749 INFO L226 Difference]: Without dead ends: 30114 [2021-06-05 13:34:00,749 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 206.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:01,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30114 states. [2021-06-05 13:34:01,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30114 to 13267. [2021-06-05 13:34:01,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13267 states, 13266 states have (on average 5.326096788783356) internal successors, (70656), 13266 states have internal predecessors, (70656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:01,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13267 states to 13267 states and 70656 transitions. [2021-06-05 13:34:01,791 INFO L78 Accepts]: Start accepts. Automaton has 13267 states and 70656 transitions. Word has length 33 [2021-06-05 13:34:01,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:01,791 INFO L482 AbstractCegarLoop]: Abstraction has 13267 states and 70656 transitions. [2021-06-05 13:34:01,791 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:01,791 INFO L276 IsEmpty]: Start isEmpty. Operand 13267 states and 70656 transitions. [2021-06-05 13:34:01,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:01,818 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:01,818 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:01,818 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-06-05 13:34:01,818 INFO L430 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:01,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:01,818 INFO L82 PathProgramCache]: Analyzing trace with hash -566748069, now seen corresponding path program 53 times [2021-06-05 13:34:01,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:01,818 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466925144] [2021-06-05 13:34:01,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:01,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:01,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:01,968 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:01,968 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466925144] [2021-06-05 13:34:01,968 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466925144] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:01,968 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:01,968 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:01,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316239184] [2021-06-05 13:34:01,968 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:01,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:01,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:01,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:01,969 INFO L87 Difference]: Start difference. First operand 13267 states and 70656 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:02,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:02,392 INFO L93 Difference]: Finished difference Result 30969 states and 155889 transitions. [2021-06-05 13:34:02,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:02,392 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:02,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:02,487 INFO L225 Difference]: With dead ends: 30969 [2021-06-05 13:34:02,487 INFO L226 Difference]: Without dead ends: 30218 [2021-06-05 13:34:02,487 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 179.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:03,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30218 states. [2021-06-05 13:34:03,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30218 to 13379. [2021-06-05 13:34:03,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13379 states, 13378 states have (on average 5.316190760950815) internal successors, (71120), 13378 states have internal predecessors, (71120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:03,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13379 states to 13379 states and 71120 transitions. [2021-06-05 13:34:03,768 INFO L78 Accepts]: Start accepts. Automaton has 13379 states and 71120 transitions. Word has length 33 [2021-06-05 13:34:03,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:03,768 INFO L482 AbstractCegarLoop]: Abstraction has 13379 states and 71120 transitions. [2021-06-05 13:34:03,768 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:03,768 INFO L276 IsEmpty]: Start isEmpty. Operand 13379 states and 71120 transitions. [2021-06-05 13:34:03,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:03,800 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:03,800 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:03,800 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-06-05 13:34:03,801 INFO L430 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:03,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:03,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1047650115, now seen corresponding path program 54 times [2021-06-05 13:34:03,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:03,801 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658936876] [2021-06-05 13:34:03,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:03,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:03,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:03,955 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:03,955 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658936876] [2021-06-05 13:34:03,955 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658936876] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:03,955 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:03,955 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:03,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626473779] [2021-06-05 13:34:03,955 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:03,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:03,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:03,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:03,955 INFO L87 Difference]: Start difference. First operand 13379 states and 71120 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:04,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:04,198 INFO L93 Difference]: Finished difference Result 30953 states and 155713 transitions. [2021-06-05 13:34:04,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:04,198 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:04,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:04,291 INFO L225 Difference]: With dead ends: 30953 [2021-06-05 13:34:04,292 INFO L226 Difference]: Without dead ends: 30050 [2021-06-05 13:34:04,292 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:04,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30050 states. [2021-06-05 13:34:05,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30050 to 13211. [2021-06-05 13:34:05,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13211 states, 13210 states have (on average 5.33111279333838) internal successors, (70424), 13210 states have internal predecessors, (70424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:05,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13211 states to 13211 states and 70424 transitions. [2021-06-05 13:34:05,559 INFO L78 Accepts]: Start accepts. Automaton has 13211 states and 70424 transitions. Word has length 33 [2021-06-05 13:34:05,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:05,560 INFO L482 AbstractCegarLoop]: Abstraction has 13211 states and 70424 transitions. [2021-06-05 13:34:05,560 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:05,560 INFO L276 IsEmpty]: Start isEmpty. Operand 13211 states and 70424 transitions. [2021-06-05 13:34:05,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:05,587 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:05,587 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:05,587 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-06-05 13:34:05,587 INFO L430 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:05,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:05,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1071636767, now seen corresponding path program 55 times [2021-06-05 13:34:05,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:05,588 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867898170] [2021-06-05 13:34:05,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:05,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:05,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:05,759 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:05,759 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867898170] [2021-06-05 13:34:05,759 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867898170] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:05,759 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:05,759 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:05,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531972848] [2021-06-05 13:34:05,759 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:05,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:05,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:05,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:05,760 INFO L87 Difference]: Start difference. First operand 13211 states and 70424 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:05,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:05,998 INFO L93 Difference]: Finished difference Result 31063 states and 156346 transitions. [2021-06-05 13:34:05,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:05,998 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:05,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:06,094 INFO L225 Difference]: With dead ends: 31063 [2021-06-05 13:34:06,094 INFO L226 Difference]: Without dead ends: 30304 [2021-06-05 13:34:06,094 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 190.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:07,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30304 states. [2021-06-05 13:34:07,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30304 to 13391. [2021-06-05 13:34:07,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13391 states, 13390 states have (on average 5.321284540702017) internal successors, (71252), 13390 states have internal predecessors, (71252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:07,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13391 states to 13391 states and 71252 transitions. [2021-06-05 13:34:07,367 INFO L78 Accepts]: Start accepts. Automaton has 13391 states and 71252 transitions. Word has length 33 [2021-06-05 13:34:07,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:07,367 INFO L482 AbstractCegarLoop]: Abstraction has 13391 states and 71252 transitions. [2021-06-05 13:34:07,367 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:07,368 INFO L276 IsEmpty]: Start isEmpty. Operand 13391 states and 71252 transitions. [2021-06-05 13:34:07,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:07,395 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:07,395 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:07,395 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-06-05 13:34:07,395 INFO L430 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:07,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:07,396 INFO L82 PathProgramCache]: Analyzing trace with hash 224839805, now seen corresponding path program 56 times [2021-06-05 13:34:07,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:07,396 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076950381] [2021-06-05 13:34:07,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:07,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:07,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:07,546 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:07,546 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076950381] [2021-06-05 13:34:07,546 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076950381] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:07,546 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:07,546 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:07,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493925784] [2021-06-05 13:34:07,546 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:07,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:07,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:07,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:07,547 INFO L87 Difference]: Start difference. First operand 13391 states and 71252 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:07,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:07,787 INFO L93 Difference]: Finished difference Result 31055 states and 156198 transitions. [2021-06-05 13:34:07,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:07,787 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:07,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:07,883 INFO L225 Difference]: With dead ends: 31055 [2021-06-05 13:34:07,884 INFO L226 Difference]: Without dead ends: 30184 [2021-06-05 13:34:07,884 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 173.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:08,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30184 states. [2021-06-05 13:34:09,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30184 to 13271. [2021-06-05 13:34:09,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13271 states, 13270 states have (on average 5.327807083647325) internal successors, (70700), 13270 states have internal predecessors, (70700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:09,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13271 states to 13271 states and 70700 transitions. [2021-06-05 13:34:09,185 INFO L78 Accepts]: Start accepts. Automaton has 13271 states and 70700 transitions. Word has length 33 [2021-06-05 13:34:09,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:09,185 INFO L482 AbstractCegarLoop]: Abstraction has 13271 states and 70700 transitions. [2021-06-05 13:34:09,186 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:09,186 INFO L276 IsEmpty]: Start isEmpty. Operand 13271 states and 70700 transitions. [2021-06-05 13:34:09,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:09,215 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:09,216 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:09,216 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-06-05 13:34:09,216 INFO L430 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:09,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:09,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1790371553, now seen corresponding path program 57 times [2021-06-05 13:34:09,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:09,216 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659745008] [2021-06-05 13:34:09,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:09,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:09,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:09,365 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:09,365 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659745008] [2021-06-05 13:34:09,365 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659745008] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:09,365 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:09,365 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:09,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874331877] [2021-06-05 13:34:09,366 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:09,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:09,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:09,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:09,366 INFO L87 Difference]: Start difference. First operand 13271 states and 70700 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:09,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:09,595 INFO L93 Difference]: Finished difference Result 31081 states and 156347 transitions. [2021-06-05 13:34:09,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:09,595 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:09,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:09,692 INFO L225 Difference]: With dead ends: 31081 [2021-06-05 13:34:09,693 INFO L226 Difference]: Without dead ends: 30322 [2021-06-05 13:34:09,693 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 167.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:10,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30322 states. [2021-06-05 13:34:10,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30322 to 13395. [2021-06-05 13:34:10,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13395 states, 13394 states have (on average 5.316111691802299) internal successors, (71204), 13394 states have internal predecessors, (71204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:10,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13395 states to 13395 states and 71204 transitions. [2021-06-05 13:34:10,973 INFO L78 Accepts]: Start accepts. Automaton has 13395 states and 71204 transitions. Word has length 33 [2021-06-05 13:34:10,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:10,973 INFO L482 AbstractCegarLoop]: Abstraction has 13395 states and 71204 transitions. [2021-06-05 13:34:10,973 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:10,973 INFO L276 IsEmpty]: Start isEmpty. Operand 13395 states and 71204 transitions. [2021-06-05 13:34:11,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:11,000 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:11,001 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:11,001 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-06-05 13:34:11,001 INFO L430 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:11,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:11,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1364631265, now seen corresponding path program 58 times [2021-06-05 13:34:11,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:11,001 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251272127] [2021-06-05 13:34:11,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:11,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:11,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:11,155 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:11,155 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251272127] [2021-06-05 13:34:11,155 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251272127] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:11,155 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:11,155 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:11,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937842196] [2021-06-05 13:34:11,155 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:11,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:11,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:11,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:11,156 INFO L87 Difference]: Start difference. First operand 13395 states and 71204 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:11,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:11,582 INFO L93 Difference]: Finished difference Result 31087 states and 156240 transitions. [2021-06-05 13:34:11,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:11,583 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:11,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:11,680 INFO L225 Difference]: With dead ends: 31087 [2021-06-05 13:34:11,680 INFO L226 Difference]: Without dead ends: 30198 [2021-06-05 13:34:11,680 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 172.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:12,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30198 states. [2021-06-05 13:34:12,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30198 to 13271. [2021-06-05 13:34:12,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13271 states, 13270 states have (on average 5.3232856066315) internal successors, (70640), 13270 states have internal predecessors, (70640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:12,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13271 states to 13271 states and 70640 transitions. [2021-06-05 13:34:12,729 INFO L78 Accepts]: Start accepts. Automaton has 13271 states and 70640 transitions. Word has length 33 [2021-06-05 13:34:12,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:12,729 INFO L482 AbstractCegarLoop]: Abstraction has 13271 states and 70640 transitions. [2021-06-05 13:34:12,729 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:12,729 INFO L276 IsEmpty]: Start isEmpty. Operand 13271 states and 70640 transitions. [2021-06-05 13:34:12,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:12,756 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:12,756 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:12,756 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-06-05 13:34:12,756 INFO L430 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:12,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:12,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1647847677, now seen corresponding path program 59 times [2021-06-05 13:34:12,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:12,756 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794604102] [2021-06-05 13:34:12,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:13,055 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-06-05 13:34:13,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:13,085 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:13,085 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794604102] [2021-06-05 13:34:13,085 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794604102] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:13,085 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:13,085 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:13,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546472615] [2021-06-05 13:34:13,086 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:13,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:13,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:13,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:13,086 INFO L87 Difference]: Start difference. First operand 13271 states and 70640 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:13,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:13,333 INFO L93 Difference]: Finished difference Result 31061 states and 156215 transitions. [2021-06-05 13:34:13,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:13,333 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:13,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:13,429 INFO L225 Difference]: With dead ends: 31061 [2021-06-05 13:34:13,429 INFO L226 Difference]: Without dead ends: 30310 [2021-06-05 13:34:13,430 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 332.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:14,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30310 states. [2021-06-05 13:34:14,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30310 to 13391. [2021-06-05 13:34:14,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13391 states, 13390 states have (on average 5.312322628827483) internal successors, (71132), 13390 states have internal predecessors, (71132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:14,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13391 states to 13391 states and 71132 transitions. [2021-06-05 13:34:14,722 INFO L78 Accepts]: Start accepts. Automaton has 13391 states and 71132 transitions. Word has length 33 [2021-06-05 13:34:14,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:14,722 INFO L482 AbstractCegarLoop]: Abstraction has 13391 states and 71132 transitions. [2021-06-05 13:34:14,722 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:14,722 INFO L276 IsEmpty]: Start isEmpty. Operand 13391 states and 71132 transitions. [2021-06-05 13:34:14,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:14,748 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:14,749 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:14,749 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-06-05 13:34:14,749 INFO L430 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:14,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:14,749 INFO L82 PathProgramCache]: Analyzing trace with hash 337266655, now seen corresponding path program 60 times [2021-06-05 13:34:14,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:14,749 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933943470] [2021-06-05 13:34:14,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:14,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:14,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:14,936 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:14,936 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933943470] [2021-06-05 13:34:14,936 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933943470] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:14,936 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:14,936 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:14,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231260583] [2021-06-05 13:34:14,936 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:14,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:14,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:14,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:14,936 INFO L87 Difference]: Start difference. First operand 13391 states and 71132 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:15,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:15,166 INFO L93 Difference]: Finished difference Result 31075 states and 156140 transitions. [2021-06-05 13:34:15,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:15,167 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:15,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:15,261 INFO L225 Difference]: With dead ends: 31075 [2021-06-05 13:34:15,261 INFO L226 Difference]: Without dead ends: 30130 [2021-06-05 13:34:15,261 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 204.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:15,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30130 states. [2021-06-05 13:34:16,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30130 to 13211. [2021-06-05 13:34:16,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13211 states, 13210 states have (on average 5.328993186979561) internal successors, (70396), 13210 states have internal predecessors, (70396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:16,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13211 states to 13211 states and 70396 transitions. [2021-06-05 13:34:16,504 INFO L78 Accepts]: Start accepts. Automaton has 13211 states and 70396 transitions. Word has length 33 [2021-06-05 13:34:16,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:16,504 INFO L482 AbstractCegarLoop]: Abstraction has 13211 states and 70396 transitions. [2021-06-05 13:34:16,505 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:16,505 INFO L276 IsEmpty]: Start isEmpty. Operand 13211 states and 70396 transitions. [2021-06-05 13:34:16,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:16,531 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:16,531 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:16,531 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-06-05 13:34:16,531 INFO L430 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:16,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:16,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1924501123, now seen corresponding path program 61 times [2021-06-05 13:34:16,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:16,532 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316981888] [2021-06-05 13:34:16,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:16,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:16,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:16,708 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:16,709 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316981888] [2021-06-05 13:34:16,709 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316981888] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:16,709 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:16,709 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:16,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296094753] [2021-06-05 13:34:16,709 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:16,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:16,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:16,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:16,709 INFO L87 Difference]: Start difference. First operand 13211 states and 70396 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:16,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:16,967 INFO L93 Difference]: Finished difference Result 31003 states and 156062 transitions. [2021-06-05 13:34:16,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:16,967 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:16,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:17,061 INFO L225 Difference]: With dead ends: 31003 [2021-06-05 13:34:17,062 INFO L226 Difference]: Without dead ends: 30244 [2021-06-05 13:34:17,062 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 196.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:17,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30244 states. [2021-06-05 13:34:18,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30244 to 13379. [2021-06-05 13:34:18,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13379 states, 13378 states have (on average 5.320376737927941) internal successors, (71176), 13378 states have internal predecessors, (71176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:18,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13379 states to 13379 states and 71176 transitions. [2021-06-05 13:34:18,320 INFO L78 Accepts]: Start accepts. Automaton has 13379 states and 71176 transitions. Word has length 33 [2021-06-05 13:34:18,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:18,321 INFO L482 AbstractCegarLoop]: Abstraction has 13379 states and 71176 transitions. [2021-06-05 13:34:18,321 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:18,321 INFO L276 IsEmpty]: Start isEmpty. Operand 13379 states and 71176 transitions. [2021-06-05 13:34:18,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:18,347 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:18,348 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:18,348 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-06-05 13:34:18,348 INFO L430 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:18,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:18,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1574439293, now seen corresponding path program 62 times [2021-06-05 13:34:18,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:18,348 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760820041] [2021-06-05 13:34:18,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:18,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:18,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:18,503 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:18,503 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760820041] [2021-06-05 13:34:18,503 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760820041] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:18,503 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:18,503 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:18,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491090870] [2021-06-05 13:34:18,503 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:18,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:18,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:18,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:18,504 INFO L87 Difference]: Start difference. First operand 13379 states and 71176 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:18,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:18,757 INFO L93 Difference]: Finished difference Result 30979 states and 155858 transitions. [2021-06-05 13:34:18,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:18,757 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:18,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:18,854 INFO L225 Difference]: With dead ends: 30979 [2021-06-05 13:34:18,854 INFO L226 Difference]: Without dead ends: 30132 [2021-06-05 13:34:18,854 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 171.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:19,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30132 states. [2021-06-05 13:34:20,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30132 to 13267. [2021-06-05 13:34:20,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13267 states, 13266 states have (on average 5.326096788783356) internal successors, (70656), 13266 states have internal predecessors, (70656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:20,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13267 states to 13267 states and 70656 transitions. [2021-06-05 13:34:20,117 INFO L78 Accepts]: Start accepts. Automaton has 13267 states and 70656 transitions. Word has length 33 [2021-06-05 13:34:20,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:20,117 INFO L482 AbstractCegarLoop]: Abstraction has 13267 states and 70656 transitions. [2021-06-05 13:34:20,117 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:20,117 INFO L276 IsEmpty]: Start isEmpty. Operand 13267 states and 70656 transitions. [2021-06-05 13:34:20,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:20,143 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:20,143 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:20,144 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-06-05 13:34:20,144 INFO L430 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:20,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:20,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1636005983, now seen corresponding path program 63 times [2021-06-05 13:34:20,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:20,144 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028948723] [2021-06-05 13:34:20,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:20,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:20,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:20,305 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:20,305 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028948723] [2021-06-05 13:34:20,305 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028948723] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:20,305 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:20,305 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:20,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628530092] [2021-06-05 13:34:20,305 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:20,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:20,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:20,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:20,306 INFO L87 Difference]: Start difference. First operand 13267 states and 70656 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:20,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:20,584 INFO L93 Difference]: Finished difference Result 31045 states and 156167 transitions. [2021-06-05 13:34:20,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:20,584 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:20,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:20,937 INFO L225 Difference]: With dead ends: 31045 [2021-06-05 13:34:20,937 INFO L226 Difference]: Without dead ends: 30286 [2021-06-05 13:34:20,938 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 184.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:22,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30286 states. [2021-06-05 13:34:22,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30286 to 13391. [2021-06-05 13:34:22,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13391 states, 13390 states have (on average 5.314413741598208) internal successors, (71160), 13390 states have internal predecessors, (71160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:22,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13391 states to 13391 states and 71160 transitions. [2021-06-05 13:34:22,369 INFO L78 Accepts]: Start accepts. Automaton has 13391 states and 71160 transitions. Word has length 33 [2021-06-05 13:34:22,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:22,369 INFO L482 AbstractCegarLoop]: Abstraction has 13391 states and 71160 transitions. [2021-06-05 13:34:22,369 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:22,369 INFO L276 IsEmpty]: Start isEmpty. Operand 13391 states and 71160 transitions. [2021-06-05 13:34:22,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:22,396 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:22,396 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:22,396 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-06-05 13:34:22,396 INFO L430 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:22,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:22,397 INFO L82 PathProgramCache]: Analyzing trace with hash 93415805, now seen corresponding path program 64 times [2021-06-05 13:34:22,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:22,397 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345589568] [2021-06-05 13:34:22,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:22,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:22,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:22,549 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:22,550 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345589568] [2021-06-05 13:34:22,550 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345589568] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:22,550 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:22,550 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:22,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580602172] [2021-06-05 13:34:22,550 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:22,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:22,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:22,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:22,550 INFO L87 Difference]: Start difference. First operand 13391 states and 71160 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:23,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:23,042 INFO L93 Difference]: Finished difference Result 31051 states and 156060 transitions. [2021-06-05 13:34:23,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:23,043 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:23,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:23,139 INFO L225 Difference]: With dead ends: 31051 [2021-06-05 13:34:23,139 INFO L226 Difference]: Without dead ends: 30162 [2021-06-05 13:34:23,139 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 173.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:23,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30162 states. [2021-06-05 13:34:24,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30162 to 13267. [2021-06-05 13:34:24,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13267 states, 13266 states have (on average 5.321875471129203) internal successors, (70600), 13266 states have internal predecessors, (70600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:24,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13267 states to 13267 states and 70600 transitions. [2021-06-05 13:34:24,195 INFO L78 Accepts]: Start accepts. Automaton has 13267 states and 70600 transitions. Word has length 33 [2021-06-05 13:34:24,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:24,195 INFO L482 AbstractCegarLoop]: Abstraction has 13267 states and 70600 transitions. [2021-06-05 13:34:24,195 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:24,195 INFO L276 IsEmpty]: Start isEmpty. Operand 13267 states and 70600 transitions. [2021-06-05 13:34:24,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:24,222 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:24,222 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:24,222 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-06-05 13:34:24,222 INFO L430 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:24,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:24,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1606004355, now seen corresponding path program 65 times [2021-06-05 13:34:24,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:24,222 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913981830] [2021-06-05 13:34:24,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:24,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:24,518 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:24,518 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913981830] [2021-06-05 13:34:24,518 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913981830] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:24,518 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:24,518 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:24,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798189060] [2021-06-05 13:34:24,518 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:24,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:24,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:24,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:24,519 INFO L87 Difference]: Start difference. First operand 13267 states and 70600 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:24,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:24,780 INFO L93 Difference]: Finished difference Result 30985 states and 155875 transitions. [2021-06-05 13:34:24,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:24,781 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:24,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:24,876 INFO L225 Difference]: With dead ends: 30985 [2021-06-05 13:34:24,876 INFO L226 Difference]: Without dead ends: 30250 [2021-06-05 13:34:24,876 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 173.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:25,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30250 states. [2021-06-05 13:34:26,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30250 to 13379. [2021-06-05 13:34:26,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13379 states, 13378 states have (on average 5.312004783973689) internal successors, (71064), 13378 states have internal predecessors, (71064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:26,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13379 states to 13379 states and 71064 transitions. [2021-06-05 13:34:26,095 INFO L78 Accepts]: Start accepts. Automaton has 13379 states and 71064 transitions. Word has length 33 [2021-06-05 13:34:26,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:26,096 INFO L482 AbstractCegarLoop]: Abstraction has 13379 states and 71064 transitions. [2021-06-05 13:34:26,096 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:26,096 INFO L276 IsEmpty]: Start isEmpty. Operand 13379 states and 71064 transitions. [2021-06-05 13:34:26,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:26,123 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:26,123 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:26,123 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-06-05 13:34:26,123 INFO L430 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:26,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:26,123 INFO L82 PathProgramCache]: Analyzing trace with hash 2071439583, now seen corresponding path program 66 times [2021-06-05 13:34:26,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:26,123 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943180027] [2021-06-05 13:34:26,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:26,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:26,283 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:26,283 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943180027] [2021-06-05 13:34:26,283 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943180027] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:26,283 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:26,283 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:26,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364834819] [2021-06-05 13:34:26,283 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:26,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:26,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:26,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:26,284 INFO L87 Difference]: Start difference. First operand 13379 states and 71064 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:26,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:26,541 INFO L93 Difference]: Finished difference Result 31015 states and 155872 transitions. [2021-06-05 13:34:26,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:26,541 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:26,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:26,636 INFO L225 Difference]: With dead ends: 31015 [2021-06-05 13:34:26,637 INFO L226 Difference]: Without dead ends: 30082 [2021-06-05 13:34:26,637 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 186.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:27,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30082 states. [2021-06-05 13:34:27,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30082 to 13211. [2021-06-05 13:34:27,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13211 states, 13210 states have (on average 5.326873580620742) internal successors, (70368), 13210 states have internal predecessors, (70368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:27,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13211 states to 13211 states and 70368 transitions. [2021-06-05 13:34:27,869 INFO L78 Accepts]: Start accepts. Automaton has 13211 states and 70368 transitions. Word has length 33 [2021-06-05 13:34:27,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:27,869 INFO L482 AbstractCegarLoop]: Abstraction has 13211 states and 70368 transitions. [2021-06-05 13:34:27,869 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:27,869 INFO L276 IsEmpty]: Start isEmpty. Operand 13211 states and 70368 transitions. [2021-06-05 13:34:27,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:27,896 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:27,896 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:27,896 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-06-05 13:34:27,896 INFO L430 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:27,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:27,896 INFO L82 PathProgramCache]: Analyzing trace with hash 540641755, now seen corresponding path program 67 times [2021-06-05 13:34:27,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:27,896 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055554895] [2021-06-05 13:34:27,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:27,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:28,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:28,043 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:28,043 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055554895] [2021-06-05 13:34:28,043 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055554895] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:28,043 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:28,043 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:28,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472088740] [2021-06-05 13:34:28,043 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:28,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:28,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:28,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:28,044 INFO L87 Difference]: Start difference. First operand 13211 states and 70368 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:28,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:28,267 INFO L93 Difference]: Finished difference Result 30975 states and 155934 transitions. [2021-06-05 13:34:28,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:28,268 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:28,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:28,364 INFO L225 Difference]: With dead ends: 30975 [2021-06-05 13:34:28,364 INFO L226 Difference]: Without dead ends: 30224 [2021-06-05 13:34:28,364 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 172.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:29,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30224 states. [2021-06-05 13:34:29,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30224 to 13379. [2021-06-05 13:34:29,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13379 states, 13378 states have (on average 5.318283749439378) internal successors, (71148), 13378 states have internal predecessors, (71148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:29,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13379 states to 13379 states and 71148 transitions. [2021-06-05 13:34:29,645 INFO L78 Accepts]: Start accepts. Automaton has 13379 states and 71148 transitions. Word has length 33 [2021-06-05 13:34:29,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:29,645 INFO L482 AbstractCegarLoop]: Abstraction has 13379 states and 71148 transitions. [2021-06-05 13:34:29,645 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:29,645 INFO L276 IsEmpty]: Start isEmpty. Operand 13379 states and 71148 transitions. [2021-06-05 13:34:29,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:29,672 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:29,672 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:29,672 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-06-05 13:34:29,672 INFO L430 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:29,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:29,673 INFO L82 PathProgramCache]: Analyzing trace with hash 59739709, now seen corresponding path program 68 times [2021-06-05 13:34:29,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:29,673 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959873200] [2021-06-05 13:34:29,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:29,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:29,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:29,858 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:29,858 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959873200] [2021-06-05 13:34:29,858 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959873200] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:29,858 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:29,858 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:29,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513156779] [2021-06-05 13:34:29,859 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:29,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:29,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:29,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:29,859 INFO L87 Difference]: Start difference. First operand 13379 states and 71148 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:30,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:30,099 INFO L93 Difference]: Finished difference Result 30959 states and 155758 transitions. [2021-06-05 13:34:30,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:30,099 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:30,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:30,193 INFO L225 Difference]: With dead ends: 30959 [2021-06-05 13:34:30,193 INFO L226 Difference]: Without dead ends: 30112 [2021-06-05 13:34:30,193 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 225.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:31,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30112 states. [2021-06-05 13:34:31,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30112 to 13267. [2021-06-05 13:34:31,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13267 states, 13266 states have (on average 5.323986129956279) internal successors, (70628), 13266 states have internal predecessors, (70628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:31,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13267 states to 13267 states and 70628 transitions. [2021-06-05 13:34:31,453 INFO L78 Accepts]: Start accepts. Automaton has 13267 states and 70628 transitions. Word has length 33 [2021-06-05 13:34:31,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:31,453 INFO L482 AbstractCegarLoop]: Abstraction has 13267 states and 70628 transitions. [2021-06-05 13:34:31,453 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:31,453 INFO L276 IsEmpty]: Start isEmpty. Operand 13267 states and 70628 transitions. [2021-06-05 13:34:31,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:31,480 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:31,480 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:31,480 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-06-05 13:34:31,480 INFO L430 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:31,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:31,481 INFO L82 PathProgramCache]: Analyzing trace with hash -193818435, now seen corresponding path program 69 times [2021-06-05 13:34:31,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:31,481 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757759692] [2021-06-05 13:34:31,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:31,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:31,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:31,655 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:31,655 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757759692] [2021-06-05 13:34:31,655 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757759692] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:31,655 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:31,655 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:31,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572982479] [2021-06-05 13:34:31,655 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:31,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:31,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:31,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:31,656 INFO L87 Difference]: Start difference. First operand 13267 states and 70628 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:32,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:32,137 INFO L93 Difference]: Finished difference Result 31013 states and 156023 transitions. [2021-06-05 13:34:32,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:32,138 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:32,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:32,256 INFO L225 Difference]: With dead ends: 31013 [2021-06-05 13:34:32,256 INFO L226 Difference]: Without dead ends: 30262 [2021-06-05 13:34:32,256 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 187.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:32,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30262 states. [2021-06-05 13:34:33,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30262 to 13387. [2021-06-05 13:34:33,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13387 states, 13386 states have (on average 5.3130135962946365) internal successors, (71120), 13386 states have internal predecessors, (71120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:33,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13387 states to 13387 states and 71120 transitions. [2021-06-05 13:34:33,312 INFO L78 Accepts]: Start accepts. Automaton has 13387 states and 71120 transitions. Word has length 33 [2021-06-05 13:34:33,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:33,312 INFO L482 AbstractCegarLoop]: Abstraction has 13387 states and 71120 transitions. [2021-06-05 13:34:33,312 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:33,313 INFO L276 IsEmpty]: Start isEmpty. Operand 13387 states and 71120 transitions. [2021-06-05 13:34:33,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:33,339 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:33,340 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:33,340 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-06-05 13:34:33,340 INFO L430 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:33,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:33,340 INFO L82 PathProgramCache]: Analyzing trace with hash 822237373, now seen corresponding path program 70 times [2021-06-05 13:34:33,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:33,340 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069682606] [2021-06-05 13:34:33,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:33,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:33,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:33,509 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:33,509 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069682606] [2021-06-05 13:34:33,509 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069682606] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:33,509 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:33,509 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:33,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530089076] [2021-06-05 13:34:33,509 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:33,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:33,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:33,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:33,510 INFO L87 Difference]: Start difference. First operand 13387 states and 71120 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:33,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:33,903 INFO L93 Difference]: Finished difference Result 31027 states and 155948 transitions. [2021-06-05 13:34:33,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:33,903 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:33,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:33,999 INFO L225 Difference]: With dead ends: 31027 [2021-06-05 13:34:33,999 INFO L226 Difference]: Without dead ends: 30142 [2021-06-05 13:34:33,999 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 189.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:34,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30142 states. [2021-06-05 13:34:35,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30142 to 13267. [2021-06-05 13:34:35,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13267 states, 13266 states have (on average 5.319764812302126) internal successors, (70572), 13266 states have internal predecessors, (70572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:35,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13267 states to 13267 states and 70572 transitions. [2021-06-05 13:34:35,311 INFO L78 Accepts]: Start accepts. Automaton has 13267 states and 70572 transitions. Word has length 33 [2021-06-05 13:34:35,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:35,311 INFO L482 AbstractCegarLoop]: Abstraction has 13267 states and 70572 transitions. [2021-06-05 13:34:35,311 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:35,311 INFO L276 IsEmpty]: Start isEmpty. Operand 13267 states and 70572 transitions. [2021-06-05 13:34:35,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:35,340 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:35,340 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:35,340 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-06-05 13:34:35,340 INFO L430 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:35,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:35,340 INFO L82 PathProgramCache]: Analyzing trace with hash -983204705, now seen corresponding path program 71 times [2021-06-05 13:34:35,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:35,341 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740066598] [2021-06-05 13:34:35,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:35,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:35,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:35,520 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:35,520 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740066598] [2021-06-05 13:34:35,520 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740066598] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:35,520 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:35,520 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:35,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678581120] [2021-06-05 13:34:35,521 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:35,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:35,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:35,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:35,521 INFO L87 Difference]: Start difference. First operand 13267 states and 70572 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:35,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:35,752 INFO L93 Difference]: Finished difference Result 30973 states and 155803 transitions. [2021-06-05 13:34:35,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:35,756 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:35,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:35,852 INFO L225 Difference]: With dead ends: 30973 [2021-06-05 13:34:35,852 INFO L226 Difference]: Without dead ends: 30238 [2021-06-05 13:34:35,852 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 200.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:36,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30238 states. [2021-06-05 13:34:37,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30238 to 13379. [2021-06-05 13:34:37,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13379 states, 13378 states have (on average 5.3099117954851245) internal successors, (71036), 13378 states have internal predecessors, (71036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:37,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13379 states to 13379 states and 71036 transitions. [2021-06-05 13:34:37,154 INFO L78 Accepts]: Start accepts. Automaton has 13379 states and 71036 transitions. Word has length 33 [2021-06-05 13:34:37,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:37,154 INFO L482 AbstractCegarLoop]: Abstraction has 13379 states and 71036 transitions. [2021-06-05 13:34:37,154 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:37,154 INFO L276 IsEmpty]: Start isEmpty. Operand 13379 states and 71036 transitions. [2021-06-05 13:34:37,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:37,187 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:37,187 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:37,187 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-06-05 13:34:37,187 INFO L430 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:37,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:37,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1348407677, now seen corresponding path program 72 times [2021-06-05 13:34:37,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:37,188 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411919282] [2021-06-05 13:34:37,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:37,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:37,405 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:37,405 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411919282] [2021-06-05 13:34:37,405 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411919282] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:37,405 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:37,405 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:37,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121809607] [2021-06-05 13:34:37,406 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:37,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:37,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:37,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:37,406 INFO L87 Difference]: Start difference. First operand 13379 states and 71036 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:37,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:37,636 INFO L93 Difference]: Finished difference Result 31003 states and 155800 transitions. [2021-06-05 13:34:37,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:37,636 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:37,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:37,730 INFO L225 Difference]: With dead ends: 31003 [2021-06-05 13:34:37,731 INFO L226 Difference]: Without dead ends: 30042 [2021-06-05 13:34:37,731 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 237.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:38,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30042 states. [2021-06-05 13:34:38,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30042 to 13183. [2021-06-05 13:34:38,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13183 states, 13182 states have (on average 5.330450614474283) internal successors, (70266), 13182 states have internal predecessors, (70266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:38,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13183 states to 13183 states and 70266 transitions. [2021-06-05 13:34:38,967 INFO L78 Accepts]: Start accepts. Automaton has 13183 states and 70266 transitions. Word has length 33 [2021-06-05 13:34:38,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:38,967 INFO L482 AbstractCegarLoop]: Abstraction has 13183 states and 70266 transitions. [2021-06-05 13:34:38,967 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:38,967 INFO L276 IsEmpty]: Start isEmpty. Operand 13183 states and 70266 transitions. [2021-06-05 13:34:38,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:38,994 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:38,995 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:38,995 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-06-05 13:34:38,995 INFO L430 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:38,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:38,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1704023899, now seen corresponding path program 73 times [2021-06-05 13:34:38,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:38,995 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675182392] [2021-06-05 13:34:38,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:38,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:39,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:39,156 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:39,156 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675182392] [2021-06-05 13:34:39,156 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675182392] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:39,156 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:39,156 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:39,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418735626] [2021-06-05 13:34:39,156 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:39,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:39,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:39,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:39,156 INFO L87 Difference]: Start difference. First operand 13183 states and 70266 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:39,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:39,473 INFO L93 Difference]: Finished difference Result 31896 states and 160380 transitions. [2021-06-05 13:34:39,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:39,473 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:39,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:39,597 INFO L225 Difference]: With dead ends: 31896 [2021-06-05 13:34:39,598 INFO L226 Difference]: Without dead ends: 31137 [2021-06-05 13:34:39,598 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 193.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:40,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31137 states. [2021-06-05 13:34:40,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31137 to 13443. [2021-06-05 13:34:40,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13443 states, 13442 states have (on average 5.324356494569261) internal successors, (71570), 13442 states have internal predecessors, (71570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:40,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13443 states to 13443 states and 71570 transitions. [2021-06-05 13:34:40,891 INFO L78 Accepts]: Start accepts. Automaton has 13443 states and 71570 transitions. Word has length 33 [2021-06-05 13:34:40,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:40,891 INFO L482 AbstractCegarLoop]: Abstraction has 13443 states and 71570 transitions. [2021-06-05 13:34:40,891 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:40,891 INFO L276 IsEmpty]: Start isEmpty. Operand 13443 states and 71570 transitions. [2021-06-05 13:34:40,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:40,918 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:40,918 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:40,918 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-06-05 13:34:40,918 INFO L430 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:40,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:40,918 INFO L82 PathProgramCache]: Analyzing trace with hash 907997019, now seen corresponding path program 74 times [2021-06-05 13:34:40,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:40,918 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78315138] [2021-06-05 13:34:40,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:40,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:41,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:41,067 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:41,067 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78315138] [2021-06-05 13:34:41,067 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78315138] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:41,067 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:41,067 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:41,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541674055] [2021-06-05 13:34:41,067 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:41,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:41,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:41,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:41,067 INFO L87 Difference]: Start difference. First operand 13443 states and 71570 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:41,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:41,307 INFO L93 Difference]: Finished difference Result 31872 states and 160176 transitions. [2021-06-05 13:34:41,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:41,307 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:41,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:41,404 INFO L225 Difference]: With dead ends: 31872 [2021-06-05 13:34:41,404 INFO L226 Difference]: Without dead ends: 31025 [2021-06-05 13:34:41,404 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 171.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:42,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31025 states. [2021-06-05 13:34:42,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31025 to 13331. [2021-06-05 13:34:42,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13331 states, 13330 states have (on average 5.330082520630158) internal successors, (71050), 13330 states have internal predecessors, (71050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:42,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13331 states to 13331 states and 71050 transitions. [2021-06-05 13:34:42,700 INFO L78 Accepts]: Start accepts. Automaton has 13331 states and 71050 transitions. Word has length 33 [2021-06-05 13:34:42,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:42,701 INFO L482 AbstractCegarLoop]: Abstraction has 13331 states and 71050 transitions. [2021-06-05 13:34:42,701 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:42,701 INFO L276 IsEmpty]: Start isEmpty. Operand 13331 states and 71050 transitions. [2021-06-05 13:34:42,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:42,727 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:42,727 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:42,727 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-06-05 13:34:42,727 INFO L430 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:42,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:42,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1278047933, now seen corresponding path program 75 times [2021-06-05 13:34:42,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:42,728 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832992165] [2021-06-05 13:34:42,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:42,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:42,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:42,907 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:42,907 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832992165] [2021-06-05 13:34:42,907 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832992165] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:42,907 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:42,907 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:42,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544633100] [2021-06-05 13:34:42,907 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:42,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:42,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:42,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:42,907 INFO L87 Difference]: Start difference. First operand 13331 states and 71050 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:43,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:43,312 INFO L93 Difference]: Finished difference Result 32131 states and 161383 transitions. [2021-06-05 13:34:43,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:43,313 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:43,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:43,410 INFO L225 Difference]: With dead ends: 32131 [2021-06-05 13:34:43,410 INFO L226 Difference]: Without dead ends: 31372 [2021-06-05 13:34:43,410 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 189.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:44,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31372 states. [2021-06-05 13:34:44,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31372 to 13519. [2021-06-05 13:34:44,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13519 states, 13518 states have (on average 5.316910785619174) internal successors, (71874), 13518 states have internal predecessors, (71874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:44,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13519 states to 13519 states and 71874 transitions. [2021-06-05 13:34:44,480 INFO L78 Accepts]: Start accepts. Automaton has 13519 states and 71874 transitions. Word has length 33 [2021-06-05 13:34:44,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:44,480 INFO L482 AbstractCegarLoop]: Abstraction has 13519 states and 71874 transitions. [2021-06-05 13:34:44,480 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:44,480 INFO L276 IsEmpty]: Start isEmpty. Operand 13519 states and 71874 transitions. [2021-06-05 13:34:44,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:44,650 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:44,650 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:44,650 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-06-05 13:34:44,650 INFO L430 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:44,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:44,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1707749211, now seen corresponding path program 76 times [2021-06-05 13:34:44,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:44,651 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348460603] [2021-06-05 13:34:44,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:44,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:44,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:44,817 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:44,817 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348460603] [2021-06-05 13:34:44,818 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348460603] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:44,818 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:44,818 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:44,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377989522] [2021-06-05 13:34:44,818 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:44,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:44,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:44,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:44,818 INFO L87 Difference]: Start difference. First operand 13519 states and 71874 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:45,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:45,040 INFO L93 Difference]: Finished difference Result 32266 states and 161854 transitions. [2021-06-05 13:34:45,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:45,040 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:45,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:45,138 INFO L225 Difference]: With dead ends: 32266 [2021-06-05 13:34:45,138 INFO L226 Difference]: Without dead ends: 31184 [2021-06-05 13:34:45,138 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 172.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:45,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31184 states. [2021-06-05 13:34:46,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31184 to 13331. [2021-06-05 13:34:46,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13331 states, 13330 states have (on average 5.323480870217554) internal successors, (70962), 13330 states have internal predecessors, (70962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:46,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13331 states to 13331 states and 70962 transitions. [2021-06-05 13:34:46,358 INFO L78 Accepts]: Start accepts. Automaton has 13331 states and 70962 transitions. Word has length 33 [2021-06-05 13:34:46,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:46,358 INFO L482 AbstractCegarLoop]: Abstraction has 13331 states and 70962 transitions. [2021-06-05 13:34:46,358 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:46,359 INFO L276 IsEmpty]: Start isEmpty. Operand 13331 states and 70962 transitions. [2021-06-05 13:34:46,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:46,393 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:46,393 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:46,393 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-06-05 13:34:46,393 INFO L430 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:46,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:46,393 INFO L82 PathProgramCache]: Analyzing trace with hash -1954011301, now seen corresponding path program 77 times [2021-06-05 13:34:46,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:46,394 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896795845] [2021-06-05 13:34:46,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:46,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:46,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:46,582 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:46,582 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896795845] [2021-06-05 13:34:46,582 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896795845] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:46,582 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:46,582 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:46,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555463060] [2021-06-05 13:34:46,583 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:46,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:46,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:46,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:46,583 INFO L87 Difference]: Start difference. First operand 13331 states and 70962 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:46,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:46,818 INFO L93 Difference]: Finished difference Result 32071 states and 161059 transitions. [2021-06-05 13:34:46,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:46,818 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:46,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:46,917 INFO L225 Difference]: With dead ends: 32071 [2021-06-05 13:34:46,917 INFO L226 Difference]: Without dead ends: 31336 [2021-06-05 13:34:46,917 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 198.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:47,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31336 states. [2021-06-05 13:34:48,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31336 to 13507. [2021-06-05 13:34:48,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13507 states, 13506 states have (on average 5.312157559603139) internal successors, (71746), 13506 states have internal predecessors, (71746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:48,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13507 states to 13507 states and 71746 transitions. [2021-06-05 13:34:48,168 INFO L78 Accepts]: Start accepts. Automaton has 13507 states and 71746 transitions. Word has length 33 [2021-06-05 13:34:48,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:48,169 INFO L482 AbstractCegarLoop]: Abstraction has 13507 states and 71746 transitions. [2021-06-05 13:34:48,169 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:48,169 INFO L276 IsEmpty]: Start isEmpty. Operand 13507 states and 71746 transitions. [2021-06-05 13:34:48,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:48,196 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:48,196 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:48,196 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-06-05 13:34:48,196 INFO L430 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:48,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:48,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1878476995, now seen corresponding path program 78 times [2021-06-05 13:34:48,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:48,197 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172511367] [2021-06-05 13:34:48,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:48,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:48,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:48,365 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:48,365 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172511367] [2021-06-05 13:34:48,365 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172511367] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:48,365 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:48,365 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:48,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841279193] [2021-06-05 13:34:48,366 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:48,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:48,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:48,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:48,366 INFO L87 Difference]: Start difference. First operand 13507 states and 71746 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:48,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:48,590 INFO L93 Difference]: Finished difference Result 32230 states and 161634 transitions. [2021-06-05 13:34:48,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:48,590 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:48,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:48,689 INFO L225 Difference]: With dead ends: 32230 [2021-06-05 13:34:48,689 INFO L226 Difference]: Without dead ends: 31072 [2021-06-05 13:34:48,689 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 171.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:49,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31072 states. [2021-06-05 13:34:49,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31072 to 13243. [2021-06-05 13:34:49,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13243 states, 13242 states have (on average 5.329255399486482) internal successors, (70570), 13242 states have internal predecessors, (70570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:50,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13243 states to 13243 states and 70570 transitions. [2021-06-05 13:34:50,035 INFO L78 Accepts]: Start accepts. Automaton has 13243 states and 70570 transitions. Word has length 33 [2021-06-05 13:34:50,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:50,035 INFO L482 AbstractCegarLoop]: Abstraction has 13243 states and 70570 transitions. [2021-06-05 13:34:50,035 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:50,036 INFO L276 IsEmpty]: Start isEmpty. Operand 13243 states and 70570 transitions. [2021-06-05 13:34:50,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:50,062 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:50,062 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:50,062 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-06-05 13:34:50,062 INFO L430 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:50,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:50,063 INFO L82 PathProgramCache]: Analyzing trace with hash -341157187, now seen corresponding path program 79 times [2021-06-05 13:34:50,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:50,063 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511379951] [2021-06-05 13:34:50,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:50,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:50,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:50,202 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:50,203 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511379951] [2021-06-05 13:34:50,203 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511379951] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:50,203 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:50,203 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:50,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418830302] [2021-06-05 13:34:50,203 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:50,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:50,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:50,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:50,204 INFO L87 Difference]: Start difference. First operand 13243 states and 70570 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:50,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:50,447 INFO L93 Difference]: Finished difference Result 31607 states and 158942 transitions. [2021-06-05 13:34:50,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:50,447 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:50,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:50,545 INFO L225 Difference]: With dead ends: 31607 [2021-06-05 13:34:50,545 INFO L226 Difference]: Without dead ends: 30848 [2021-06-05 13:34:50,545 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 162.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:51,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30848 states. [2021-06-05 13:34:51,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30848 to 13411. [2021-06-05 13:34:51,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13411 states, 13410 states have (on average 5.320656226696495) internal successors, (71350), 13410 states have internal predecessors, (71350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:51,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13411 states to 13411 states and 71350 transitions. [2021-06-05 13:34:51,916 INFO L78 Accepts]: Start accepts. Automaton has 13411 states and 71350 transitions. Word has length 33 [2021-06-05 13:34:51,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:51,916 INFO L482 AbstractCegarLoop]: Abstraction has 13411 states and 71350 transitions. [2021-06-05 13:34:51,916 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:51,916 INFO L276 IsEmpty]: Start isEmpty. Operand 13411 states and 71350 transitions. [2021-06-05 13:34:51,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:51,944 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:51,944 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:51,944 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-06-05 13:34:51,944 INFO L430 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:51,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:51,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1137184067, now seen corresponding path program 80 times [2021-06-05 13:34:51,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:51,944 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988757257] [2021-06-05 13:34:51,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:51,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:52,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:52,079 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:52,079 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988757257] [2021-06-05 13:34:52,079 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988757257] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:52,079 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:52,079 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:52,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585943260] [2021-06-05 13:34:52,080 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:52,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:52,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:52,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:52,080 INFO L87 Difference]: Start difference. First operand 13411 states and 71350 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:52,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:52,519 INFO L93 Difference]: Finished difference Result 31583 states and 158738 transitions. [2021-06-05 13:34:52,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:52,520 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:52,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:52,615 INFO L225 Difference]: With dead ends: 31583 [2021-06-05 13:34:52,615 INFO L226 Difference]: Without dead ends: 30736 [2021-06-05 13:34:52,615 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 168.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:53,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30736 states. [2021-06-05 13:34:53,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30736 to 13299. [2021-06-05 13:34:53,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13299 states, 13298 states have (on average 5.326364866897277) internal successors, (70830), 13298 states have internal predecessors, (70830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:53,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13299 states to 13299 states and 70830 transitions. [2021-06-05 13:34:53,670 INFO L78 Accepts]: Start accepts. Automaton has 13299 states and 70830 transitions. Word has length 33 [2021-06-05 13:34:53,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:53,671 INFO L482 AbstractCegarLoop]: Abstraction has 13299 states and 70830 transitions. [2021-06-05 13:34:53,671 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:53,671 INFO L276 IsEmpty]: Start isEmpty. Operand 13299 states and 70830 transitions. [2021-06-05 13:34:53,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:53,702 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:53,702 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:53,702 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-06-05 13:34:53,702 INFO L430 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:53,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:53,702 INFO L82 PathProgramCache]: Analyzing trace with hash -104108483, now seen corresponding path program 81 times [2021-06-05 13:34:53,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:53,702 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849302677] [2021-06-05 13:34:53,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:53,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:53,986 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-06-05 13:34:53,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:53,987 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:53,987 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849302677] [2021-06-05 13:34:53,987 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849302677] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:53,987 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:53,987 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:53,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832691111] [2021-06-05 13:34:53,987 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:53,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:53,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:53,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:53,988 INFO L87 Difference]: Start difference. First operand 13299 states and 70830 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:54,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:54,224 INFO L93 Difference]: Finished difference Result 31649 states and 159047 transitions. [2021-06-05 13:34:54,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:54,224 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:54,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:54,323 INFO L225 Difference]: With dead ends: 31649 [2021-06-05 13:34:54,323 INFO L226 Difference]: Without dead ends: 30890 [2021-06-05 13:34:54,323 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 307.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:55,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30890 states. [2021-06-05 13:34:55,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30890 to 13423. [2021-06-05 13:34:55,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13423 states, 13422 states have (on average 5.314707197139025) internal successors, (71334), 13422 states have internal predecessors, (71334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:55,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13423 states to 13423 states and 71334 transitions. [2021-06-05 13:34:55,637 INFO L78 Accepts]: Start accepts. Automaton has 13423 states and 71334 transitions. Word has length 33 [2021-06-05 13:34:55,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:55,637 INFO L482 AbstractCegarLoop]: Abstraction has 13423 states and 71334 transitions. [2021-06-05 13:34:55,637 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:55,637 INFO L276 IsEmpty]: Start isEmpty. Operand 13423 states and 71334 transitions. [2021-06-05 13:34:55,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:55,665 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:55,665 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:55,665 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-06-05 13:34:55,665 INFO L430 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:55,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:55,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1646698661, now seen corresponding path program 82 times [2021-06-05 13:34:55,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:55,665 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368045984] [2021-06-05 13:34:55,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:55,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:55,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:55,807 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:55,807 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368045984] [2021-06-05 13:34:55,807 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368045984] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:55,807 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:55,807 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:55,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604975615] [2021-06-05 13:34:55,808 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:55,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:55,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:55,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:55,808 INFO L87 Difference]: Start difference. First operand 13423 states and 71334 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:56,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:56,065 INFO L93 Difference]: Finished difference Result 31655 states and 158940 transitions. [2021-06-05 13:34:56,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:56,066 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:56,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:56,169 INFO L225 Difference]: With dead ends: 31655 [2021-06-05 13:34:56,169 INFO L226 Difference]: Without dead ends: 30766 [2021-06-05 13:34:56,169 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 162.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:56,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30766 states. [2021-06-05 13:34:57,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30766 to 13299. [2021-06-05 13:34:57,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13299 states, 13298 states have (on average 5.32215370732441) internal successors, (70774), 13298 states have internal predecessors, (70774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:57,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13299 states to 13299 states and 70774 transitions. [2021-06-05 13:34:57,467 INFO L78 Accepts]: Start accepts. Automaton has 13299 states and 70774 transitions. Word has length 33 [2021-06-05 13:34:57,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:57,467 INFO L482 AbstractCegarLoop]: Abstraction has 13299 states and 70774 transitions. [2021-06-05 13:34:57,467 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:57,467 INFO L276 IsEmpty]: Start isEmpty. Operand 13299 states and 70774 transitions. [2021-06-05 13:34:57,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:57,494 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:57,494 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:57,494 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-06-05 13:34:57,494 INFO L430 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:57,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:57,494 INFO L82 PathProgramCache]: Analyzing trace with hash 948848475, now seen corresponding path program 83 times [2021-06-05 13:34:57,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:57,494 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466420653] [2021-06-05 13:34:57,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:57,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:57,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:57,644 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:57,644 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466420653] [2021-06-05 13:34:57,645 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466420653] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:57,645 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:57,645 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:57,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602313136] [2021-06-05 13:34:57,645 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:57,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:57,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:57,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:57,645 INFO L87 Difference]: Start difference. First operand 13299 states and 70774 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:57,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:57,881 INFO L93 Difference]: Finished difference Result 31589 states and 158755 transitions. [2021-06-05 13:34:57,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:57,882 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:57,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:57,980 INFO L225 Difference]: With dead ends: 31589 [2021-06-05 13:34:57,980 INFO L226 Difference]: Without dead ends: 30854 [2021-06-05 13:34:57,980 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 173.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:34:58,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30854 states. [2021-06-05 13:34:59,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30854 to 13411. [2021-06-05 13:34:59,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13411 states, 13410 states have (on average 5.312304250559284) internal successors, (71238), 13410 states have internal predecessors, (71238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:59,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13411 states to 13411 states and 71238 transitions. [2021-06-05 13:34:59,269 INFO L78 Accepts]: Start accepts. Automaton has 13411 states and 71238 transitions. Word has length 33 [2021-06-05 13:34:59,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:34:59,269 INFO L482 AbstractCegarLoop]: Abstraction has 13411 states and 71238 transitions. [2021-06-05 13:34:59,269 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:59,269 INFO L276 IsEmpty]: Start isEmpty. Operand 13411 states and 71238 transitions. [2021-06-05 13:34:59,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:34:59,295 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:34:59,295 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:34:59,296 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-06-05 13:34:59,296 INFO L430 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:34:59,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:34:59,296 INFO L82 PathProgramCache]: Analyzing trace with hash 331325117, now seen corresponding path program 84 times [2021-06-05 13:34:59,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:34:59,296 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345261617] [2021-06-05 13:34:59,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:34:59,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:34:59,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:34:59,454 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:34:59,454 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345261617] [2021-06-05 13:34:59,454 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345261617] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:34:59,454 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:34:59,454 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:34:59,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636420632] [2021-06-05 13:34:59,454 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:34:59,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:34:59,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:34:59,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:34:59,454 INFO L87 Difference]: Start difference. First operand 13411 states and 71238 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:34:59,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:34:59,714 INFO L93 Difference]: Finished difference Result 31619 states and 158752 transitions. [2021-06-05 13:34:59,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:34:59,715 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:34:59,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:34:59,810 INFO L225 Difference]: With dead ends: 31619 [2021-06-05 13:34:59,811 INFO L226 Difference]: Without dead ends: 30686 [2021-06-05 13:34:59,811 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 180.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:00,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30686 states. [2021-06-05 13:35:01,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30686 to 13243. [2021-06-05 13:35:01,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13243 states, 13242 states have (on average 5.327140915269597) internal successors, (70542), 13242 states have internal predecessors, (70542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:01,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13243 states to 13243 states and 70542 transitions. [2021-06-05 13:35:01,081 INFO L78 Accepts]: Start accepts. Automaton has 13243 states and 70542 transitions. Word has length 33 [2021-06-05 13:35:01,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:35:01,081 INFO L482 AbstractCegarLoop]: Abstraction has 13243 states and 70542 transitions. [2021-06-05 13:35:01,081 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:01,081 INFO L276 IsEmpty]: Start isEmpty. Operand 13243 states and 70542 transitions. [2021-06-05 13:35:01,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:35:01,107 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:01,107 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:01,107 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-06-05 13:35:01,108 INFO L430 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:01,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:01,108 INFO L82 PathProgramCache]: Analyzing trace with hash -163558113, now seen corresponding path program 85 times [2021-06-05 13:35:01,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:01,108 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230849419] [2021-06-05 13:35:01,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:01,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:01,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:01,265 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:01,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230849419] [2021-06-05 13:35:01,266 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230849419] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:01,266 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:01,266 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:35:01,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620536749] [2021-06-05 13:35:01,266 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:35:01,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:01,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:35:01,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:35:01,266 INFO L87 Difference]: Start difference. First operand 13243 states and 70542 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:01,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:01,587 INFO L93 Difference]: Finished difference Result 32290 states and 162019 transitions. [2021-06-05 13:35:01,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:35:01,587 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:35:01,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:01,963 INFO L225 Difference]: With dead ends: 32290 [2021-06-05 13:35:01,963 INFO L226 Difference]: Without dead ends: 31531 [2021-06-05 13:35:01,963 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 214.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:02,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31531 states. [2021-06-05 13:35:02,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31531 to 13557. [2021-06-05 13:35:02,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13557 states, 13556 states have (on average 5.313588079079374) internal successors, (72031), 13556 states have internal predecessors, (72031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:03,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13557 states to 13557 states and 72031 transitions. [2021-06-05 13:35:03,029 INFO L78 Accepts]: Start accepts. Automaton has 13557 states and 72031 transitions. Word has length 33 [2021-06-05 13:35:03,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:35:03,030 INFO L482 AbstractCegarLoop]: Abstraction has 13557 states and 72031 transitions. [2021-06-05 13:35:03,030 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:03,030 INFO L276 IsEmpty]: Start isEmpty. Operand 13557 states and 72031 transitions. [2021-06-05 13:35:03,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:35:03,058 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:03,058 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:03,058 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-06-05 13:35:03,058 INFO L430 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:03,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:03,059 INFO L82 PathProgramCache]: Analyzing trace with hash 266143165, now seen corresponding path program 86 times [2021-06-05 13:35:03,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:03,059 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232084620] [2021-06-05 13:35:03,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:03,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:03,216 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:03,216 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232084620] [2021-06-05 13:35:03,216 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232084620] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:03,216 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:03,216 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:35:03,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724926793] [2021-06-05 13:35:03,217 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:35:03,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:03,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:35:03,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:35:03,217 INFO L87 Difference]: Start difference. First operand 13557 states and 72031 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:03,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:03,645 INFO L93 Difference]: Finished difference Result 32425 states and 162490 transitions. [2021-06-05 13:35:03,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:35:03,645 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:35:03,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:03,759 INFO L225 Difference]: With dead ends: 32425 [2021-06-05 13:35:03,759 INFO L226 Difference]: Without dead ends: 31343 [2021-06-05 13:35:03,760 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 370.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:04,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31343 states. [2021-06-05 13:35:04,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31343 to 13369. [2021-06-05 13:35:04,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13369 states, 13368 states have (on average 5.319643925792938) internal successors, (71113), 13368 states have internal predecessors, (71113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:05,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13369 states to 13369 states and 71113 transitions. [2021-06-05 13:35:05,212 INFO L78 Accepts]: Start accepts. Automaton has 13369 states and 71113 transitions. Word has length 33 [2021-06-05 13:35:05,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:35:05,212 INFO L482 AbstractCegarLoop]: Abstraction has 13369 states and 71113 transitions. [2021-06-05 13:35:05,212 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:05,212 INFO L276 IsEmpty]: Start isEmpty. Operand 13369 states and 71113 transitions. [2021-06-05 13:35:05,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:35:05,242 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:05,242 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:05,242 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-06-05 13:35:05,242 INFO L430 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:05,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:05,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1294488957, now seen corresponding path program 87 times [2021-06-05 13:35:05,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:05,243 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800432997] [2021-06-05 13:35:05,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:05,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:05,399 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:05,399 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800432997] [2021-06-05 13:35:05,399 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800432997] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:05,399 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:05,399 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:35:05,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558639916] [2021-06-05 13:35:05,400 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:35:05,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:05,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:35:05,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:35:05,400 INFO L87 Difference]: Start difference. First operand 13369 states and 71113 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:05,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:05,677 INFO L93 Difference]: Finished difference Result 32097 states and 161027 transitions. [2021-06-05 13:35:05,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:35:05,677 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:35:05,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:05,776 INFO L225 Difference]: With dead ends: 32097 [2021-06-05 13:35:05,776 INFO L226 Difference]: Without dead ends: 31338 [2021-06-05 13:35:05,777 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 197.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:06,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31338 states. [2021-06-05 13:35:07,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31338 to 13493. [2021-06-05 13:35:07,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13493 states, 13492 states have (on average 5.308108508745923) internal successors, (71617), 13492 states have internal predecessors, (71617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:07,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13493 states to 13493 states and 71617 transitions. [2021-06-05 13:35:07,146 INFO L78 Accepts]: Start accepts. Automaton has 13493 states and 71617 transitions. Word has length 33 [2021-06-05 13:35:07,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:35:07,146 INFO L482 AbstractCegarLoop]: Abstraction has 13493 states and 71617 transitions. [2021-06-05 13:35:07,146 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:07,146 INFO L276 IsEmpty]: Start isEmpty. Operand 13493 states and 71617 transitions. [2021-06-05 13:35:07,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:35:07,177 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:07,177 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:07,177 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-06-05 13:35:07,177 INFO L430 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:07,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:07,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1307258429, now seen corresponding path program 88 times [2021-06-05 13:35:07,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:07,177 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052541897] [2021-06-05 13:35:07,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:07,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:07,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:07,320 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:07,320 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052541897] [2021-06-05 13:35:07,320 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052541897] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:07,320 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:07,320 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:35:07,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757892059] [2021-06-05 13:35:07,320 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:35:07,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:07,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:35:07,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:35:07,321 INFO L87 Difference]: Start difference. First operand 13493 states and 71617 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:07,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:07,568 INFO L93 Difference]: Finished difference Result 32103 states and 160920 transitions. [2021-06-05 13:35:07,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:35:07,568 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:35:07,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:07,666 INFO L225 Difference]: With dead ends: 32103 [2021-06-05 13:35:07,667 INFO L226 Difference]: Without dead ends: 31214 [2021-06-05 13:35:07,667 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:08,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31214 states. [2021-06-05 13:35:08,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31214 to 13369. [2021-06-05 13:35:08,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13369 states, 13368 states have (on average 5.315005984440455) internal successors, (71051), 13368 states have internal predecessors, (71051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:08,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13369 states to 13369 states and 71051 transitions. [2021-06-05 13:35:08,972 INFO L78 Accepts]: Start accepts. Automaton has 13369 states and 71051 transitions. Word has length 33 [2021-06-05 13:35:08,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:35:08,972 INFO L482 AbstractCegarLoop]: Abstraction has 13369 states and 71051 transitions. [2021-06-05 13:35:08,972 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:08,972 INFO L276 IsEmpty]: Start isEmpty. Operand 13369 states and 71051 transitions. [2021-06-05 13:35:09,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:35:09,002 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:09,002 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:09,002 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-06-05 13:35:09,002 INFO L430 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:09,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:09,002 INFO L82 PathProgramCache]: Analyzing trace with hash -399300773, now seen corresponding path program 89 times [2021-06-05 13:35:09,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:09,003 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082496787] [2021-06-05 13:35:09,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:09,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:09,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:09,150 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:09,150 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082496787] [2021-06-05 13:35:09,150 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082496787] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:09,150 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:09,150 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:35:09,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213203356] [2021-06-05 13:35:09,150 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:35:09,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:09,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:35:09,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:35:09,151 INFO L87 Difference]: Start difference. First operand 13369 states and 71051 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:09,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:09,382 INFO L93 Difference]: Finished difference Result 32498 states and 162741 transitions. [2021-06-05 13:35:09,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:35:09,382 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:35:09,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:09,490 INFO L225 Difference]: With dead ends: 32498 [2021-06-05 13:35:09,490 INFO L226 Difference]: Without dead ends: 31604 [2021-06-05 13:35:09,490 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 155.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:10,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31604 states. [2021-06-05 13:35:10,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31604 to 13624. [2021-06-05 13:35:10,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13624 states, 13623 states have (on average 5.290611465903252) internal successors, (72074), 13623 states have internal predecessors, (72074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:10,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13624 states to 13624 states and 72074 transitions. [2021-06-05 13:35:10,839 INFO L78 Accepts]: Start accepts. Automaton has 13624 states and 72074 transitions. Word has length 33 [2021-06-05 13:35:10,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:35:10,839 INFO L482 AbstractCegarLoop]: Abstraction has 13624 states and 72074 transitions. [2021-06-05 13:35:10,839 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:10,839 INFO L276 IsEmpty]: Start isEmpty. Operand 13624 states and 72074 transitions. [2021-06-05 13:35:10,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:35:10,866 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:10,866 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:10,866 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-06-05 13:35:10,866 INFO L430 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:10,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:10,867 INFO L82 PathProgramCache]: Analyzing trace with hash -880202819, now seen corresponding path program 90 times [2021-06-05 13:35:10,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:10,867 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653273948] [2021-06-05 13:35:10,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:10,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:11,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:11,018 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:11,018 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653273948] [2021-06-05 13:35:11,018 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653273948] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:11,018 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:11,018 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:35:11,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543947856] [2021-06-05 13:35:11,018 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:35:11,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:11,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:35:11,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:35:11,018 INFO L87 Difference]: Start difference. First operand 13624 states and 72074 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:11,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:11,288 INFO L93 Difference]: Finished difference Result 32369 states and 161972 transitions. [2021-06-05 13:35:11,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:35:11,289 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:35:11,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:11,389 INFO L225 Difference]: With dead ends: 32369 [2021-06-05 13:35:11,390 INFO L226 Difference]: Without dead ends: 31223 [2021-06-05 13:35:11,390 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 179.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:12,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31223 states. [2021-06-05 13:35:12,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31223 to 13243. [2021-06-05 13:35:12,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13243 states, 13242 states have (on average 5.322609877661985) internal successors, (70482), 13242 states have internal predecessors, (70482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:12,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13243 states to 13243 states and 70482 transitions. [2021-06-05 13:35:12,789 INFO L78 Accepts]: Start accepts. Automaton has 13243 states and 70482 transitions. Word has length 33 [2021-06-05 13:35:12,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:35:12,789 INFO L482 AbstractCegarLoop]: Abstraction has 13243 states and 70482 transitions. [2021-06-05 13:35:12,789 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:12,789 INFO L276 IsEmpty]: Start isEmpty. Operand 13243 states and 70482 transitions. [2021-06-05 13:35:12,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:35:12,816 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:12,816 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:12,816 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-06-05 13:35:12,816 INFO L430 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:12,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:12,817 INFO L82 PathProgramCache]: Analyzing trace with hash -343642277, now seen corresponding path program 91 times [2021-06-05 13:35:12,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:12,817 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704418078] [2021-06-05 13:35:12,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:12,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:12,985 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:12,985 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704418078] [2021-06-05 13:35:12,986 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704418078] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:12,986 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:12,986 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:35:12,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609540142] [2021-06-05 13:35:12,986 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:35:12,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:12,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:35:12,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:35:12,986 INFO L87 Difference]: Start difference. First operand 13243 states and 70482 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:13,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:13,442 INFO L93 Difference]: Finished difference Result 32176 states and 161498 transitions. [2021-06-05 13:35:13,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:35:13,442 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:35:13,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:13,543 INFO L225 Difference]: With dead ends: 32176 [2021-06-05 13:35:13,544 INFO L226 Difference]: Without dead ends: 31441 [2021-06-05 13:35:13,544 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 195.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:14,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31441 states. [2021-06-05 13:35:14,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31441 to 13539. [2021-06-05 13:35:14,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13539 states, 13538 states have (on average 5.311124242871916) internal successors, (71902), 13538 states have internal predecessors, (71902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:14,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13539 states to 13539 states and 71902 transitions. [2021-06-05 13:35:14,627 INFO L78 Accepts]: Start accepts. Automaton has 13539 states and 71902 transitions. Word has length 33 [2021-06-05 13:35:14,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:35:14,627 INFO L482 AbstractCegarLoop]: Abstraction has 13539 states and 71902 transitions. [2021-06-05 13:35:14,627 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:14,627 INFO L276 IsEmpty]: Start isEmpty. Operand 13539 states and 71902 transitions. [2021-06-05 13:35:14,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:35:14,654 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:14,654 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:14,654 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-06-05 13:35:14,654 INFO L430 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:14,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:14,655 INFO L82 PathProgramCache]: Analyzing trace with hash -268107971, now seen corresponding path program 92 times [2021-06-05 13:35:14,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:14,655 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288188639] [2021-06-05 13:35:14,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:14,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:14,975 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:14,975 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288188639] [2021-06-05 13:35:14,975 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288188639] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:14,975 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:14,975 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:35:14,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128256347] [2021-06-05 13:35:14,975 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:35:14,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:14,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:35:14,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:35:14,976 INFO L87 Difference]: Start difference. First operand 13539 states and 71902 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:15,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:15,220 INFO L93 Difference]: Finished difference Result 32335 states and 162073 transitions. [2021-06-05 13:35:15,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:35:15,220 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:35:15,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:15,319 INFO L225 Difference]: With dead ends: 32335 [2021-06-05 13:35:15,319 INFO L226 Difference]: Without dead ends: 31265 [2021-06-05 13:35:15,319 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 174.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:16,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31265 states. [2021-06-05 13:35:16,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31265 to 13363. [2021-06-05 13:35:16,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13363 states, 13362 states have (on average 5.315820984882502) internal successors, (71030), 13362 states have internal predecessors, (71030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:16,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13363 states to 13363 states and 71030 transitions. [2021-06-05 13:35:16,699 INFO L78 Accepts]: Start accepts. Automaton has 13363 states and 71030 transitions. Word has length 33 [2021-06-05 13:35:16,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:35:16,699 INFO L482 AbstractCegarLoop]: Abstraction has 13363 states and 71030 transitions. [2021-06-05 13:35:16,699 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:16,700 INFO L276 IsEmpty]: Start isEmpty. Operand 13363 states and 71030 transitions. [2021-06-05 13:35:16,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:35:16,734 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:16,734 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:16,734 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-06-05 13:35:16,735 INFO L430 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:16,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:16,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1365959485, now seen corresponding path program 93 times [2021-06-05 13:35:16,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:16,735 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518582409] [2021-06-05 13:35:16,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:16,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:16,908 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:16,908 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518582409] [2021-06-05 13:35:16,908 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518582409] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:16,908 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:16,908 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:35:16,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988373939] [2021-06-05 13:35:16,909 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:35:16,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:16,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:35:16,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:35:16,909 INFO L87 Difference]: Start difference. First operand 13363 states and 71030 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:17,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:17,138 INFO L93 Difference]: Finished difference Result 31983 states and 160512 transitions. [2021-06-05 13:35:17,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:35:17,138 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:35:17,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:17,239 INFO L225 Difference]: With dead ends: 31983 [2021-06-05 13:35:17,240 INFO L226 Difference]: Without dead ends: 31248 [2021-06-05 13:35:17,240 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 188.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:17,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31248 states. [2021-06-05 13:35:18,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31248 to 13475. [2021-06-05 13:35:18,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13475 states, 13474 states have (on average 5.306070951462075) internal successors, (71494), 13474 states have internal predecessors, (71494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:18,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13475 states to 13475 states and 71494 transitions. [2021-06-05 13:35:18,493 INFO L78 Accepts]: Start accepts. Automaton has 13475 states and 71494 transitions. Word has length 33 [2021-06-05 13:35:18,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:35:18,493 INFO L482 AbstractCegarLoop]: Abstraction has 13475 states and 71494 transitions. [2021-06-05 13:35:18,493 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:18,493 INFO L276 IsEmpty]: Start isEmpty. Operand 13475 states and 71494 transitions. [2021-06-05 13:35:18,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:35:18,521 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:18,521 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:18,521 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-06-05 13:35:18,521 INFO L430 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:18,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:18,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1279600963, now seen corresponding path program 94 times [2021-06-05 13:35:18,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:18,522 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253632119] [2021-06-05 13:35:18,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:18,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:18,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:18,727 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:18,727 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253632119] [2021-06-05 13:35:18,727 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253632119] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:18,728 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:18,728 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:35:18,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533957244] [2021-06-05 13:35:18,728 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:35:18,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:18,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:35:18,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:35:18,729 INFO L87 Difference]: Start difference. First operand 13475 states and 71494 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:18,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:18,963 INFO L93 Difference]: Finished difference Result 32013 states and 160509 transitions. [2021-06-05 13:35:18,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:35:18,963 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:35:18,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:19,064 INFO L225 Difference]: With dead ends: 32013 [2021-06-05 13:35:19,064 INFO L226 Difference]: Without dead ends: 31136 [2021-06-05 13:35:19,064 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 222.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:20,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31136 states. [2021-06-05 13:35:20,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31136 to 13363. [2021-06-05 13:35:20,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13363 states, 13362 states have (on average 5.311629995509654) internal successors, (70974), 13362 states have internal predecessors, (70974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:20,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13363 states to 13363 states and 70974 transitions. [2021-06-05 13:35:20,388 INFO L78 Accepts]: Start accepts. Automaton has 13363 states and 70974 transitions. Word has length 33 [2021-06-05 13:35:20,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:35:20,388 INFO L482 AbstractCegarLoop]: Abstraction has 13363 states and 70974 transitions. [2021-06-05 13:35:20,388 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:20,388 INFO L276 IsEmpty]: Start isEmpty. Operand 13363 states and 70974 transitions. [2021-06-05 13:35:20,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:35:20,416 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:20,416 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:20,416 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-06-05 13:35:20,416 INFO L430 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:20,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:20,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1002568161, now seen corresponding path program 95 times [2021-06-05 13:35:20,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:20,417 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091391106] [2021-06-05 13:35:20,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:20,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:20,595 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:20,596 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091391106] [2021-06-05 13:35:20,596 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091391106] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:20,596 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:20,596 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:35:20,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449885619] [2021-06-05 13:35:20,596 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:35:20,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:20,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:35:20,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:35:20,596 INFO L87 Difference]: Start difference. First operand 13363 states and 70974 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:20,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:20,810 INFO L93 Difference]: Finished difference Result 32444 states and 162468 transitions. [2021-06-05 13:35:20,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:35:20,811 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:35:20,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:20,911 INFO L225 Difference]: With dead ends: 32444 [2021-06-05 13:35:20,911 INFO L226 Difference]: Without dead ends: 31550 [2021-06-05 13:35:20,911 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:21,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31550 states. [2021-06-05 13:35:22,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31550 to 13618. [2021-06-05 13:35:22,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13618 states, 13617 states have (on average 5.28728794888742) internal successors, (71997), 13617 states have internal predecessors, (71997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:22,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13618 states to 13618 states and 71997 transitions. [2021-06-05 13:35:22,241 INFO L78 Accepts]: Start accepts. Automaton has 13618 states and 71997 transitions. Word has length 33 [2021-06-05 13:35:22,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:35:22,241 INFO L482 AbstractCegarLoop]: Abstraction has 13618 states and 71997 transitions. [2021-06-05 13:35:22,242 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:22,242 INFO L276 IsEmpty]: Start isEmpty. Operand 13618 states and 71997 transitions. [2021-06-05 13:35:22,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:35:22,269 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:22,269 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:22,270 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-06-05 13:35:22,270 INFO L430 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:22,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:22,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1269337597, now seen corresponding path program 96 times [2021-06-05 13:35:22,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:22,270 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059113941] [2021-06-05 13:35:22,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:22,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:22,423 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:22,423 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059113941] [2021-06-05 13:35:22,423 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059113941] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:22,423 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:22,424 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:35:22,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287439432] [2021-06-05 13:35:22,424 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:35:22,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:22,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:35:22,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:35:22,424 INFO L87 Difference]: Start difference. First operand 13618 states and 71997 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:22,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:22,888 INFO L93 Difference]: Finished difference Result 32315 states and 161699 transitions. [2021-06-05 13:35:22,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:35:22,888 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:35:22,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:22,990 INFO L225 Difference]: With dead ends: 32315 [2021-06-05 13:35:22,991 INFO L226 Difference]: Without dead ends: 31115 [2021-06-05 13:35:22,991 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 178.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:23,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31115 states. [2021-06-05 13:35:24,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31115 to 13183. [2021-06-05 13:35:24,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13183 states, 13182 states have (on average 5.328174783796086) internal successors, (70236), 13182 states have internal predecessors, (70236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:24,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13183 states to 13183 states and 70236 transitions. [2021-06-05 13:35:24,069 INFO L78 Accepts]: Start accepts. Automaton has 13183 states and 70236 transitions. Word has length 33 [2021-06-05 13:35:24,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:35:24,069 INFO L482 AbstractCegarLoop]: Abstraction has 13183 states and 70236 transitions. [2021-06-05 13:35:24,069 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:24,069 INFO L276 IsEmpty]: Start isEmpty. Operand 13183 states and 70236 transitions. [2021-06-05 13:35:24,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:35:24,096 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:24,096 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:24,096 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-06-05 13:35:24,096 INFO L430 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:24,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:24,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1050695737, now seen corresponding path program 97 times [2021-06-05 13:35:24,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:24,096 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917094009] [2021-06-05 13:35:24,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:24,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:24,410 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-06-05 13:35:24,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:24,410 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:24,410 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917094009] [2021-06-05 13:35:24,410 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917094009] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:24,411 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:24,411 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:35:24,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105673875] [2021-06-05 13:35:24,411 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:35:24,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:24,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:35:24,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:35:24,411 INFO L87 Difference]: Start difference. First operand 13183 states and 70236 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:24,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:24,645 INFO L93 Difference]: Finished difference Result 31850 states and 160181 transitions. [2021-06-05 13:35:24,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:35:24,645 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:35:24,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:24,747 INFO L225 Difference]: With dead ends: 31850 [2021-06-05 13:35:24,747 INFO L226 Difference]: Without dead ends: 31099 [2021-06-05 13:35:24,747 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 339.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:25,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31099 states. [2021-06-05 13:35:25,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31099 to 13443. [2021-06-05 13:35:25,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13443 states, 13442 states have (on average 5.322124683826812) internal successors, (71540), 13442 states have internal predecessors, (71540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:26,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13443 states to 13443 states and 71540 transitions. [2021-06-05 13:35:26,045 INFO L78 Accepts]: Start accepts. Automaton has 13443 states and 71540 transitions. Word has length 33 [2021-06-05 13:35:26,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:35:26,045 INFO L482 AbstractCegarLoop]: Abstraction has 13443 states and 71540 transitions. [2021-06-05 13:35:26,045 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:26,045 INFO L276 IsEmpty]: Start isEmpty. Operand 13443 states and 71540 transitions. [2021-06-05 13:35:26,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:35:26,076 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:26,076 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:26,076 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-06-05 13:35:26,076 INFO L430 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:26,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:26,076 INFO L82 PathProgramCache]: Analyzing trace with hash 569793691, now seen corresponding path program 98 times [2021-06-05 13:35:26,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:26,076 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743798292] [2021-06-05 13:35:26,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:26,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:26,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:26,240 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:26,240 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743798292] [2021-06-05 13:35:26,240 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743798292] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:26,240 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:26,240 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:35:26,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038052630] [2021-06-05 13:35:26,240 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:35:26,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:26,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:35:26,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:35:26,241 INFO L87 Difference]: Start difference. First operand 13443 states and 71540 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:26,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:26,561 INFO L93 Difference]: Finished difference Result 31834 states and 160005 transitions. [2021-06-05 13:35:26,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:35:26,561 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:35:26,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:26,660 INFO L225 Difference]: With dead ends: 31834 [2021-06-05 13:35:26,660 INFO L226 Difference]: Without dead ends: 30987 [2021-06-05 13:35:26,660 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 199.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:27,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30987 states. [2021-06-05 13:35:27,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30987 to 13331. [2021-06-05 13:35:27,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13331 states, 13330 states have (on average 5.327831957989497) internal successors, (71020), 13330 states have internal predecessors, (71020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:27,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13331 states to 13331 states and 71020 transitions. [2021-06-05 13:35:27,943 INFO L78 Accepts]: Start accepts. Automaton has 13331 states and 71020 transitions. Word has length 33 [2021-06-05 13:35:27,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:35:27,944 INFO L482 AbstractCegarLoop]: Abstraction has 13331 states and 71020 transitions. [2021-06-05 13:35:27,944 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:27,944 INFO L276 IsEmpty]: Start isEmpty. Operand 13331 states and 71020 transitions. [2021-06-05 13:35:27,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:35:27,971 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:27,971 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:27,971 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-06-05 13:35:27,971 INFO L430 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:27,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:27,971 INFO L82 PathProgramCache]: Analyzing trace with hash 624719771, now seen corresponding path program 99 times [2021-06-05 13:35:27,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:27,971 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064814074] [2021-06-05 13:35:27,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:27,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:28,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:28,153 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:28,153 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064814074] [2021-06-05 13:35:28,153 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064814074] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:28,153 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:28,153 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:35:28,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280977862] [2021-06-05 13:35:28,153 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:35:28,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:28,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:35:28,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:35:28,154 INFO L87 Difference]: Start difference. First operand 13331 states and 71020 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:28,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:28,403 INFO L93 Difference]: Finished difference Result 32081 states and 161168 transitions. [2021-06-05 13:35:28,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:35:28,403 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:35:28,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:28,505 INFO L225 Difference]: With dead ends: 32081 [2021-06-05 13:35:28,505 INFO L226 Difference]: Without dead ends: 31330 [2021-06-05 13:35:28,505 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 203.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:29,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31330 states. [2021-06-05 13:35:29,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31330 to 13515. [2021-06-05 13:35:29,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13515 states, 13514 states have (on average 5.315376646440728) internal successors, (71832), 13514 states have internal predecessors, (71832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:29,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13515 states to 13515 states and 71832 transitions. [2021-06-05 13:35:29,811 INFO L78 Accepts]: Start accepts. Automaton has 13515 states and 71832 transitions. Word has length 33 [2021-06-05 13:35:29,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:35:29,811 INFO L482 AbstractCegarLoop]: Abstraction has 13515 states and 71832 transitions. [2021-06-05 13:35:29,811 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:29,811 INFO L276 IsEmpty]: Start isEmpty. Operand 13515 states and 71832 transitions. [2021-06-05 13:35:29,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:35:29,839 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:29,839 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:29,839 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-06-05 13:35:29,839 INFO L430 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:29,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:29,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1951182949, now seen corresponding path program 100 times [2021-06-05 13:35:29,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:29,839 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605894625] [2021-06-05 13:35:29,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:29,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:30,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:30,028 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:30,029 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605894625] [2021-06-05 13:35:30,029 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605894625] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:30,029 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:30,029 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:35:30,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813117744] [2021-06-05 13:35:30,029 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:35:30,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:30,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:35:30,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:35:30,029 INFO L87 Difference]: Start difference. First operand 13515 states and 71832 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:30,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:30,256 INFO L93 Difference]: Finished difference Result 32224 states and 161671 transitions. [2021-06-05 13:35:30,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:35:30,256 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:35:30,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:30,354 INFO L225 Difference]: With dead ends: 32224 [2021-06-05 13:35:30,354 INFO L226 Difference]: Without dead ends: 31146 [2021-06-05 13:35:30,354 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 192.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:31,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31146 states. [2021-06-05 13:35:31,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31146 to 13331. [2021-06-05 13:35:31,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13331 states, 13330 states have (on average 5.3212303075768945) internal successors, (70932), 13330 states have internal predecessors, (70932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:31,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13331 states to 13331 states and 70932 transitions. [2021-06-05 13:35:31,629 INFO L78 Accepts]: Start accepts. Automaton has 13331 states and 70932 transitions. Word has length 33 [2021-06-05 13:35:31,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:35:31,629 INFO L482 AbstractCegarLoop]: Abstraction has 13331 states and 70932 transitions. [2021-06-05 13:35:31,629 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:31,629 INFO L276 IsEmpty]: Start isEmpty. Operand 13331 states and 70932 transitions. [2021-06-05 13:35:31,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:35:31,655 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:31,656 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:31,656 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-06-05 13:35:31,656 INFO L430 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:31,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:31,656 INFO L82 PathProgramCache]: Analyzing trace with hash -164666499, now seen corresponding path program 101 times [2021-06-05 13:35:31,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:31,656 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722045327] [2021-06-05 13:35:31,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:31,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:31,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:31,832 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:31,832 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722045327] [2021-06-05 13:35:31,832 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722045327] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:31,832 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:31,832 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:35:31,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464483137] [2021-06-05 13:35:31,832 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:35:31,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:31,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:35:31,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:35:31,833 INFO L87 Difference]: Start difference. First operand 13331 states and 70932 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:32,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:32,346 INFO L93 Difference]: Finished difference Result 32041 states and 160916 transitions. [2021-06-05 13:35:32,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:35:32,346 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:35:32,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:32,461 INFO L225 Difference]: With dead ends: 32041 [2021-06-05 13:35:32,461 INFO L226 Difference]: Without dead ends: 31306 [2021-06-05 13:35:32,461 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 205.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:33,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31306 states. [2021-06-05 13:35:33,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31306 to 13507. [2021-06-05 13:35:33,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13507 states, 13506 states have (on average 5.3099363245964755) internal successors, (71716), 13506 states have internal predecessors, (71716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:33,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13507 states to 13507 states and 71716 transitions. [2021-06-05 13:35:33,549 INFO L78 Accepts]: Start accepts. Automaton has 13507 states and 71716 transitions. Word has length 33 [2021-06-05 13:35:33,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:35:33,549 INFO L482 AbstractCegarLoop]: Abstraction has 13507 states and 71716 transitions. [2021-06-05 13:35:33,549 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:33,550 INFO L276 IsEmpty]: Start isEmpty. Operand 13507 states and 71716 transitions. [2021-06-05 13:35:33,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:35:33,579 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:33,580 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:33,580 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-06-05 13:35:33,580 INFO L430 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:33,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:33,580 INFO L82 PathProgramCache]: Analyzing trace with hash -2118070309, now seen corresponding path program 102 times [2021-06-05 13:35:33,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:33,580 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367510576] [2021-06-05 13:35:33,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:33,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:33,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:33,796 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:33,796 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367510576] [2021-06-05 13:35:33,796 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367510576] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:33,796 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:33,796 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:35:33,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540785119] [2021-06-05 13:35:33,797 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:35:33,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:33,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:35:33,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:35:33,797 INFO L87 Difference]: Start difference. First operand 13507 states and 71716 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:34,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:34,177 INFO L93 Difference]: Finished difference Result 32200 states and 161491 transitions. [2021-06-05 13:35:34,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:35:34,177 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:35:34,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:34,282 INFO L225 Difference]: With dead ends: 32200 [2021-06-05 13:35:34,283 INFO L226 Difference]: Without dead ends: 31042 [2021-06-05 13:35:34,283 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 217.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:35,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31042 states. [2021-06-05 13:35:35,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31042 to 13243. [2021-06-05 13:35:35,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13243 states, 13242 states have (on average 5.326989880682676) internal successors, (70540), 13242 states have internal predecessors, (70540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:35,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13243 states to 13243 states and 70540 transitions. [2021-06-05 13:35:35,675 INFO L78 Accepts]: Start accepts. Automaton has 13243 states and 70540 transitions. Word has length 33 [2021-06-05 13:35:35,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:35:35,675 INFO L482 AbstractCegarLoop]: Abstraction has 13243 states and 70540 transitions. [2021-06-05 13:35:35,675 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:35,675 INFO L276 IsEmpty]: Start isEmpty. Operand 13243 states and 70540 transitions. [2021-06-05 13:35:35,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:35:35,705 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:35,705 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:35,705 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-06-05 13:35:35,705 INFO L430 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:35,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:35,705 INFO L82 PathProgramCache]: Analyzing trace with hash -994485349, now seen corresponding path program 103 times [2021-06-05 13:35:35,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:35,706 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194483182] [2021-06-05 13:35:35,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:35,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:35,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:35,865 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:35,865 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194483182] [2021-06-05 13:35:35,865 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194483182] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:35,865 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:35,865 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:35:35,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109550971] [2021-06-05 13:35:35,865 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:35:35,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:35,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:35:35,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:35:35,866 INFO L87 Difference]: Start difference. First operand 13243 states and 70540 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:36,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:36,122 INFO L93 Difference]: Finished difference Result 31561 states and 158743 transitions. [2021-06-05 13:35:36,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:35:36,123 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:35:36,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:36,233 INFO L225 Difference]: With dead ends: 31561 [2021-06-05 13:35:36,233 INFO L226 Difference]: Without dead ends: 30810 [2021-06-05 13:35:36,233 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 185.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:37,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30810 states. [2021-06-05 13:35:37,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30810 to 13411. [2021-06-05 13:35:37,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13411 states, 13410 states have (on average 5.3184190902311705) internal successors, (71320), 13410 states have internal predecessors, (71320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:37,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13411 states to 13411 states and 71320 transitions. [2021-06-05 13:35:37,646 INFO L78 Accepts]: Start accepts. Automaton has 13411 states and 71320 transitions. Word has length 33 [2021-06-05 13:35:37,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:35:37,646 INFO L482 AbstractCegarLoop]: Abstraction has 13411 states and 71320 transitions. [2021-06-05 13:35:37,646 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:37,646 INFO L276 IsEmpty]: Start isEmpty. Operand 13411 states and 71320 transitions. [2021-06-05 13:35:37,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:35:37,674 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:37,675 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:37,675 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-06-05 13:35:37,675 INFO L430 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:37,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:37,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1475387395, now seen corresponding path program 104 times [2021-06-05 13:35:37,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:37,675 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33216540] [2021-06-05 13:35:37,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:37,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:37,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:37,839 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:37,839 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33216540] [2021-06-05 13:35:37,839 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33216540] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:37,839 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:37,839 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:35:37,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708398229] [2021-06-05 13:35:37,839 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:35:37,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:37,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:35:37,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:35:37,839 INFO L87 Difference]: Start difference. First operand 13411 states and 71320 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:38,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:38,087 INFO L93 Difference]: Finished difference Result 31545 states and 158567 transitions. [2021-06-05 13:35:38,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:35:38,088 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:35:38,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:38,199 INFO L225 Difference]: With dead ends: 31545 [2021-06-05 13:35:38,199 INFO L226 Difference]: Without dead ends: 30698 [2021-06-05 13:35:38,200 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 187.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:39,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30698 states. [2021-06-05 13:35:39,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30698 to 13299. [2021-06-05 13:35:39,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13299 states, 13298 states have (on average 5.32410888855467) internal successors, (70800), 13298 states have internal predecessors, (70800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:39,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13299 states to 13299 states and 70800 transitions. [2021-06-05 13:35:39,541 INFO L78 Accepts]: Start accepts. Automaton has 13299 states and 70800 transitions. Word has length 33 [2021-06-05 13:35:39,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:35:39,541 INFO L482 AbstractCegarLoop]: Abstraction has 13299 states and 70800 transitions. [2021-06-05 13:35:39,541 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:39,541 INFO L276 IsEmpty]: Start isEmpty. Operand 13299 states and 70800 transitions. [2021-06-05 13:35:39,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:35:39,568 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:39,568 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:39,568 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-06-05 13:35:39,568 INFO L430 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:39,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:39,568 INFO L82 PathProgramCache]: Analyzing trace with hash -757436645, now seen corresponding path program 105 times [2021-06-05 13:35:39,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:39,568 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636489673] [2021-06-05 13:35:39,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:39,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:39,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:39,747 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:39,748 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636489673] [2021-06-05 13:35:39,748 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636489673] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:39,748 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:39,748 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:35:39,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035466900] [2021-06-05 13:35:39,748 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:35:39,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:39,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:35:39,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:35:39,748 INFO L87 Difference]: Start difference. First operand 13299 states and 70800 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:39,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:39,983 INFO L93 Difference]: Finished difference Result 31599 states and 158832 transitions. [2021-06-05 13:35:39,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:35:39,984 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:35:39,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:40,093 INFO L225 Difference]: With dead ends: 31599 [2021-06-05 13:35:40,094 INFO L226 Difference]: Without dead ends: 30848 [2021-06-05 13:35:40,094 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 207.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:41,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30848 states. [2021-06-05 13:35:41,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30848 to 13419. [2021-06-05 13:35:41,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13419 states, 13418 states have (on average 5.3131614249515575) internal successors, (71292), 13418 states have internal predecessors, (71292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:41,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13419 states to 13419 states and 71292 transitions. [2021-06-05 13:35:41,475 INFO L78 Accepts]: Start accepts. Automaton has 13419 states and 71292 transitions. Word has length 33 [2021-06-05 13:35:41,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:35:41,475 INFO L482 AbstractCegarLoop]: Abstraction has 13419 states and 71292 transitions. [2021-06-05 13:35:41,475 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:41,475 INFO L276 IsEmpty]: Start isEmpty. Operand 13419 states and 71292 transitions. [2021-06-05 13:35:41,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:35:41,503 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:41,503 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:41,503 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-06-05 13:35:41,503 INFO L430 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:41,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:41,503 INFO L82 PathProgramCache]: Analyzing trace with hash 258619163, now seen corresponding path program 106 times [2021-06-05 13:35:41,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:41,504 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178465041] [2021-06-05 13:35:41,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:41,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:41,697 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:41,697 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178465041] [2021-06-05 13:35:41,697 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178465041] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:41,698 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:41,698 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:35:41,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990688254] [2021-06-05 13:35:41,698 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:35:41,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:41,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:35:41,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:35:41,698 INFO L87 Difference]: Start difference. First operand 13419 states and 71292 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:41,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:41,961 INFO L93 Difference]: Finished difference Result 31613 states and 158757 transitions. [2021-06-05 13:35:41,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:35:41,962 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:35:41,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:42,306 INFO L225 Difference]: With dead ends: 31613 [2021-06-05 13:35:42,306 INFO L226 Difference]: Without dead ends: 30728 [2021-06-05 13:35:42,306 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 218.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:43,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30728 states. [2021-06-05 13:35:43,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30728 to 13299. [2021-06-05 13:35:43,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13299 states, 13298 states have (on average 5.319897728981802) internal successors, (70744), 13298 states have internal predecessors, (70744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:43,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13299 states to 13299 states and 70744 transitions. [2021-06-05 13:35:43,372 INFO L78 Accepts]: Start accepts. Automaton has 13299 states and 70744 transitions. Word has length 33 [2021-06-05 13:35:43,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:35:43,372 INFO L482 AbstractCegarLoop]: Abstraction has 13299 states and 70744 transitions. [2021-06-05 13:35:43,372 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:43,372 INFO L276 IsEmpty]: Start isEmpty. Operand 13299 states and 70744 transitions. [2021-06-05 13:35:43,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:35:43,399 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:43,400 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:43,400 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-06-05 13:35:43,400 INFO L430 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:43,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:43,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1546822915, now seen corresponding path program 107 times [2021-06-05 13:35:43,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:43,400 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647952364] [2021-06-05 13:35:43,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:43,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:43,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:43,592 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:43,592 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647952364] [2021-06-05 13:35:43,592 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647952364] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:43,592 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:43,592 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:35:43,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231586484] [2021-06-05 13:35:43,592 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:35:43,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:43,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:35:43,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:35:43,592 INFO L87 Difference]: Start difference. First operand 13299 states and 70744 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:44,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:44,070 INFO L93 Difference]: Finished difference Result 31559 states and 158612 transitions. [2021-06-05 13:35:44,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:35:44,070 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:35:44,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:44,178 INFO L225 Difference]: With dead ends: 31559 [2021-06-05 13:35:44,178 INFO L226 Difference]: Without dead ends: 30824 [2021-06-05 13:35:44,178 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 215.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:44,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30824 states. [2021-06-05 13:35:45,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30824 to 13411. [2021-06-05 13:35:45,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13411 states, 13410 states have (on average 5.31006711409396) internal successors, (71208), 13410 states have internal predecessors, (71208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:45,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13411 states to 13411 states and 71208 transitions. [2021-06-05 13:35:45,341 INFO L78 Accepts]: Start accepts. Automaton has 13411 states and 71208 transitions. Word has length 33 [2021-06-05 13:35:45,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:35:45,341 INFO L482 AbstractCegarLoop]: Abstraction has 13411 states and 71208 transitions. [2021-06-05 13:35:45,341 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:45,341 INFO L276 IsEmpty]: Start isEmpty. Operand 13411 states and 71208 transitions. [2021-06-05 13:35:45,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:35:45,522 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:45,523 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:45,523 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-06-05 13:35:45,523 INFO L430 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:45,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:45,523 INFO L82 PathProgramCache]: Analyzing trace with hash 784789467, now seen corresponding path program 108 times [2021-06-05 13:35:45,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:45,523 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649083283] [2021-06-05 13:35:45,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:45,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:45,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:45,694 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:45,694 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649083283] [2021-06-05 13:35:45,694 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649083283] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:45,694 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:45,694 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:35:45,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046723164] [2021-06-05 13:35:45,694 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:35:45,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:45,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:35:45,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:35:45,694 INFO L87 Difference]: Start difference. First operand 13411 states and 71208 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:45,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:45,950 INFO L93 Difference]: Finished difference Result 31589 states and 158609 transitions. [2021-06-05 13:35:45,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:35:45,951 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:35:45,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:46,064 INFO L225 Difference]: With dead ends: 31589 [2021-06-05 13:35:46,064 INFO L226 Difference]: Without dead ends: 30656 [2021-06-05 13:35:46,064 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 195.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:46,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30656 states. [2021-06-05 13:35:47,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30656 to 13243. [2021-06-05 13:35:47,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13243 states, 13242 states have (on average 5.3248753964657904) internal successors, (70512), 13242 states have internal predecessors, (70512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:47,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13243 states to 13243 states and 70512 transitions. [2021-06-05 13:35:47,456 INFO L78 Accepts]: Start accepts. Automaton has 13243 states and 70512 transitions. Word has length 33 [2021-06-05 13:35:47,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:35:47,456 INFO L482 AbstractCegarLoop]: Abstraction has 13243 states and 70512 transitions. [2021-06-05 13:35:47,456 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:47,456 INFO L276 IsEmpty]: Start isEmpty. Operand 13243 states and 70512 transitions. [2021-06-05 13:35:47,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:35:47,484 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:47,484 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:47,484 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-06-05 13:35:47,484 INFO L430 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:47,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:47,484 INFO L82 PathProgramCache]: Analyzing trace with hash -816886275, now seen corresponding path program 109 times [2021-06-05 13:35:47,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:47,484 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732238989] [2021-06-05 13:35:47,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:47,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:47,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:47,675 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:47,675 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732238989] [2021-06-05 13:35:47,675 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732238989] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:47,675 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:47,675 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:35:47,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180769967] [2021-06-05 13:35:47,675 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:35:47,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:47,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:35:47,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:35:47,676 INFO L87 Difference]: Start difference. First operand 13243 states and 70512 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:47,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:47,912 INFO L93 Difference]: Finished difference Result 32234 states and 161779 transitions. [2021-06-05 13:35:47,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:35:47,913 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:35:47,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:48,012 INFO L225 Difference]: With dead ends: 32234 [2021-06-05 13:35:48,012 INFO L226 Difference]: Without dead ends: 31483 [2021-06-05 13:35:48,012 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 204.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:48,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31483 states. [2021-06-05 13:35:49,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31483 to 13551. [2021-06-05 13:35:49,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13551 states, 13550 states have (on average 5.312177121771218) internal successors, (71980), 13550 states have internal predecessors, (71980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:49,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13551 states to 13551 states and 71980 transitions. [2021-06-05 13:35:49,278 INFO L78 Accepts]: Start accepts. Automaton has 13551 states and 71980 transitions. Word has length 33 [2021-06-05 13:35:49,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:35:49,278 INFO L482 AbstractCegarLoop]: Abstraction has 13551 states and 71980 transitions. [2021-06-05 13:35:49,278 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:49,278 INFO L276 IsEmpty]: Start isEmpty. Operand 13551 states and 71980 transitions. [2021-06-05 13:35:49,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:35:49,306 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:49,307 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:49,307 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-06-05 13:35:49,307 INFO L430 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:49,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:49,307 INFO L82 PathProgramCache]: Analyzing trace with hash 902178301, now seen corresponding path program 110 times [2021-06-05 13:35:49,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:49,307 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111941115] [2021-06-05 13:35:49,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:49,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:49,502 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:49,502 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111941115] [2021-06-05 13:35:49,502 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111941115] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:49,502 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:49,502 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:35:49,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8929826] [2021-06-05 13:35:49,503 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:35:49,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:49,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:35:49,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:35:49,503 INFO L87 Difference]: Start difference. First operand 13551 states and 71980 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:49,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:49,728 INFO L93 Difference]: Finished difference Result 32377 states and 162282 transitions. [2021-06-05 13:35:49,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:35:49,729 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:35:49,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:49,830 INFO L225 Difference]: With dead ends: 32377 [2021-06-05 13:35:49,830 INFO L226 Difference]: Without dead ends: 31299 [2021-06-05 13:35:49,831 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 194.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:50,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31299 states. [2021-06-05 13:35:51,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31299 to 13367. [2021-06-05 13:35:51,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13367 states, 13366 states have (on average 5.317671704324405) internal successors, (71076), 13366 states have internal predecessors, (71076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:51,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13367 states to 13367 states and 71076 transitions. [2021-06-05 13:35:51,098 INFO L78 Accepts]: Start accepts. Automaton has 13367 states and 71076 transitions. Word has length 33 [2021-06-05 13:35:51,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:35:51,098 INFO L482 AbstractCegarLoop]: Abstraction has 13367 states and 71076 transitions. [2021-06-05 13:35:51,099 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:51,099 INFO L276 IsEmpty]: Start isEmpty. Operand 13367 states and 71076 transitions. [2021-06-05 13:35:51,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:35:51,126 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:51,126 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:51,126 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-06-05 13:35:51,126 INFO L430 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:51,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:51,126 INFO L82 PathProgramCache]: Analyzing trace with hash 641160795, now seen corresponding path program 111 times [2021-06-05 13:35:51,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:51,126 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878229612] [2021-06-05 13:35:51,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:51,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:51,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:51,318 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:51,318 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878229612] [2021-06-05 13:35:51,318 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878229612] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:51,318 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:51,318 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:35:51,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856167899] [2021-06-05 13:35:51,318 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:35:51,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:51,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:35:51,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:35:51,319 INFO L87 Difference]: Start difference. First operand 13367 states and 71076 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:51,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:51,544 INFO L93 Difference]: Finished difference Result 32041 states and 160789 transitions. [2021-06-05 13:35:51,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:35:51,545 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:35:51,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:51,644 INFO L225 Difference]: With dead ends: 32041 [2021-06-05 13:35:51,645 INFO L226 Difference]: Without dead ends: 31290 [2021-06-05 13:35:51,645 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 211.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:52,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31290 states. [2021-06-05 13:35:52,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31290 to 13487. [2021-06-05 13:35:52,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13487 states, 13486 states have (on average 5.306836719561026) internal successors, (71568), 13486 states have internal predecessors, (71568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:52,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13487 states to 13487 states and 71568 transitions. [2021-06-05 13:35:52,944 INFO L78 Accepts]: Start accepts. Automaton has 13487 states and 71568 transitions. Word has length 33 [2021-06-05 13:35:52,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:35:52,944 INFO L482 AbstractCegarLoop]: Abstraction has 13487 states and 71568 transitions. [2021-06-05 13:35:52,944 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:52,944 INFO L276 IsEmpty]: Start isEmpty. Operand 13487 states and 71568 transitions. [2021-06-05 13:35:52,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:35:52,972 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:52,972 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:52,972 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-06-05 13:35:52,972 INFO L430 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:52,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:52,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1082391043, now seen corresponding path program 112 times [2021-06-05 13:35:52,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:52,973 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117103324] [2021-06-05 13:35:52,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:52,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:53,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:53,154 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:53,155 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117103324] [2021-06-05 13:35:53,155 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117103324] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:53,155 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:53,155 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:35:53,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759359421] [2021-06-05 13:35:53,155 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:35:53,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:53,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:35:53,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:35:53,155 INFO L87 Difference]: Start difference. First operand 13487 states and 71568 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:53,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:53,562 INFO L93 Difference]: Finished difference Result 32055 states and 160714 transitions. [2021-06-05 13:35:53,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:35:53,562 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:35:53,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:53,665 INFO L225 Difference]: With dead ends: 32055 [2021-06-05 13:35:53,665 INFO L226 Difference]: Without dead ends: 31170 [2021-06-05 13:35:53,666 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 198.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:54,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31170 states. [2021-06-05 13:35:54,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31170 to 13367. [2021-06-05 13:35:54,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13367 states, 13366 states have (on average 5.313182702379171) internal successors, (71016), 13366 states have internal predecessors, (71016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:54,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13367 states to 13367 states and 71016 transitions. [2021-06-05 13:35:54,761 INFO L78 Accepts]: Start accepts. Automaton has 13367 states and 71016 transitions. Word has length 33 [2021-06-05 13:35:54,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:35:54,761 INFO L482 AbstractCegarLoop]: Abstraction has 13367 states and 71016 transitions. [2021-06-05 13:35:54,761 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:54,761 INFO L276 IsEmpty]: Start isEmpty. Operand 13367 states and 71016 transitions. [2021-06-05 13:35:54,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:35:54,788 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:54,788 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:54,788 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-06-05 13:35:54,788 INFO L430 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:54,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:54,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1920733699, now seen corresponding path program 113 times [2021-06-05 13:35:54,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:54,789 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484540045] [2021-06-05 13:35:54,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:54,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:54,956 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2021-06-05 13:35:55,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:55,097 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:55,097 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484540045] [2021-06-05 13:35:55,097 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484540045] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:55,097 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:55,097 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:35:55,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149312702] [2021-06-05 13:35:55,098 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:35:55,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:55,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:35:55,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:35:55,098 INFO L87 Difference]: Start difference. First operand 13367 states and 71016 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:55,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:55,316 INFO L93 Difference]: Finished difference Result 32462 states and 162577 transitions. [2021-06-05 13:35:55,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:35:55,316 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:35:55,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:55,415 INFO L225 Difference]: With dead ends: 32462 [2021-06-05 13:35:55,415 INFO L226 Difference]: Without dead ends: 31568 [2021-06-05 13:35:55,415 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 315.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:56,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31568 states. [2021-06-05 13:35:56,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31568 to 13622. [2021-06-05 13:35:56,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13622 states, 13621 states have (on average 5.28881873577564) internal successors, (72039), 13621 states have internal predecessors, (72039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:56,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13622 states to 13622 states and 72039 transitions. [2021-06-05 13:35:56,675 INFO L78 Accepts]: Start accepts. Automaton has 13622 states and 72039 transitions. Word has length 33 [2021-06-05 13:35:56,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:35:56,675 INFO L482 AbstractCegarLoop]: Abstraction has 13622 states and 72039 transitions. [2021-06-05 13:35:56,675 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:56,675 INFO L276 IsEmpty]: Start isEmpty. Operand 13622 states and 72039 transitions. [2021-06-05 13:35:56,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:35:56,702 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:56,702 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:56,702 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-06-05 13:35:56,702 INFO L430 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:56,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:56,702 INFO L82 PathProgramCache]: Analyzing trace with hash 351172059, now seen corresponding path program 114 times [2021-06-05 13:35:56,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:56,702 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430714727] [2021-06-05 13:35:56,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:56,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:56,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:56,872 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:56,872 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430714727] [2021-06-05 13:35:56,872 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430714727] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:56,872 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:56,872 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:35:56,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754996978] [2021-06-05 13:35:56,872 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:35:56,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:56,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:35:56,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:35:56,873 INFO L87 Difference]: Start difference. First operand 13622 states and 72039 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:57,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:57,116 INFO L93 Difference]: Finished difference Result 32333 states and 161808 transitions. [2021-06-05 13:35:57,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:35:57,116 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:35:57,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:57,215 INFO L225 Difference]: With dead ends: 32333 [2021-06-05 13:35:57,215 INFO L226 Difference]: Without dead ends: 31189 [2021-06-05 13:35:57,215 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 185.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:57,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31189 states. [2021-06-05 13:35:58,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31189 to 13243. [2021-06-05 13:35:58,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13243 states, 13242 states have (on average 5.320344358858178) internal successors, (70452), 13242 states have internal predecessors, (70452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:58,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13243 states to 13243 states and 70452 transitions. [2021-06-05 13:35:58,461 INFO L78 Accepts]: Start accepts. Automaton has 13243 states and 70452 transitions. Word has length 33 [2021-06-05 13:35:58,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:35:58,461 INFO L482 AbstractCegarLoop]: Abstraction has 13243 states and 70452 transitions. [2021-06-05 13:35:58,461 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:58,461 INFO L276 IsEmpty]: Start isEmpty. Operand 13243 states and 70452 transitions. [2021-06-05 13:35:58,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:35:58,489 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:58,489 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:58,489 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-06-05 13:35:58,489 INFO L430 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:58,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:58,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1706868385, now seen corresponding path program 115 times [2021-06-05 13:35:58,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:58,489 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348041060] [2021-06-05 13:35:58,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:58,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:58,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:58,662 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:58,662 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348041060] [2021-06-05 13:35:58,662 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348041060] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:58,662 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:58,662 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:35:58,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621022161] [2021-06-05 13:35:58,663 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:35:58,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:58,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:35:58,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:35:58,663 INFO L87 Difference]: Start difference. First operand 13243 states and 70452 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:58,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:58,911 INFO L93 Difference]: Finished difference Result 32158 states and 161399 transitions. [2021-06-05 13:35:58,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:35:58,911 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:35:58,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:59,009 INFO L225 Difference]: With dead ends: 32158 [2021-06-05 13:35:59,009 INFO L226 Difference]: Without dead ends: 31423 [2021-06-05 13:35:59,009 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 197.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:35:59,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31423 states. [2021-06-05 13:36:00,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31423 to 13539. [2021-06-05 13:36:00,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13539 states, 13538 states have (on average 5.308908258236076) internal successors, (71872), 13538 states have internal predecessors, (71872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:00,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13539 states to 13539 states and 71872 transitions. [2021-06-05 13:36:00,311 INFO L78 Accepts]: Start accepts. Automaton has 13539 states and 71872 transitions. Word has length 33 [2021-06-05 13:36:00,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:00,312 INFO L482 AbstractCegarLoop]: Abstraction has 13539 states and 71872 transitions. [2021-06-05 13:36:00,312 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:00,312 INFO L276 IsEmpty]: Start isEmpty. Operand 13539 states and 71872 transitions. [2021-06-05 13:36:00,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:00,338 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:00,338 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:00,338 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-06-05 13:36:00,338 INFO L430 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:00,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:00,339 INFO L82 PathProgramCache]: Analyzing trace with hash 634695101, now seen corresponding path program 116 times [2021-06-05 13:36:00,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:00,339 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956915427] [2021-06-05 13:36:00,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:00,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:00,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:00,511 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:00,511 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956915427] [2021-06-05 13:36:00,511 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956915427] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:00,511 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:00,511 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:00,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095053766] [2021-06-05 13:36:00,511 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:00,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:00,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:00,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:00,511 INFO L87 Difference]: Start difference. First operand 13539 states and 71872 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:00,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:00,731 INFO L93 Difference]: Finished difference Result 32317 states and 161974 transitions. [2021-06-05 13:36:00,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:00,732 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:00,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:00,829 INFO L225 Difference]: With dead ends: 32317 [2021-06-05 13:36:00,830 INFO L226 Difference]: Without dead ends: 31247 [2021-06-05 13:36:00,830 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 178.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:01,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31247 states. [2021-06-05 13:36:02,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31247 to 13363. [2021-06-05 13:36:02,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13363 states, 13362 states have (on average 5.313575812004191) internal successors, (71000), 13362 states have internal predecessors, (71000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:02,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13363 states to 13363 states and 71000 transitions. [2021-06-05 13:36:02,208 INFO L78 Accepts]: Start accepts. Automaton has 13363 states and 71000 transitions. Word has length 33 [2021-06-05 13:36:02,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:02,208 INFO L482 AbstractCegarLoop]: Abstraction has 13363 states and 71000 transitions. [2021-06-05 13:36:02,208 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:02,208 INFO L276 IsEmpty]: Start isEmpty. Operand 13363 states and 71000 transitions. [2021-06-05 13:36:02,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:02,240 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:02,240 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:02,240 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-06-05 13:36:02,240 INFO L430 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:02,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:02,241 INFO L82 PathProgramCache]: Analyzing trace with hash -248821315, now seen corresponding path program 117 times [2021-06-05 13:36:02,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:02,241 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240347053] [2021-06-05 13:36:02,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:02,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:02,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:02,434 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:02,434 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240347053] [2021-06-05 13:36:02,434 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240347053] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:02,434 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:02,434 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:02,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226910334] [2021-06-05 13:36:02,434 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:02,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:02,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:02,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:02,435 INFO L87 Difference]: Start difference. First operand 13363 states and 71000 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:02,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:02,853 INFO L93 Difference]: Finished difference Result 31965 states and 160413 transitions. [2021-06-05 13:36:02,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:02,853 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:02,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:02,952 INFO L225 Difference]: With dead ends: 31965 [2021-06-05 13:36:02,952 INFO L226 Difference]: Without dead ends: 31230 [2021-06-05 13:36:02,953 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 211.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:03,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31230 states. [2021-06-05 13:36:03,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31230 to 13475. [2021-06-05 13:36:03,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13475 states, 13474 states have (on average 5.303844441145911) internal successors, (71464), 13474 states have internal predecessors, (71464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:04,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13475 states to 13475 states and 71464 transitions. [2021-06-05 13:36:04,027 INFO L78 Accepts]: Start accepts. Automaton has 13475 states and 71464 transitions. Word has length 33 [2021-06-05 13:36:04,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:04,027 INFO L482 AbstractCegarLoop]: Abstraction has 13475 states and 71464 transitions. [2021-06-05 13:36:04,027 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:04,027 INFO L276 IsEmpty]: Start isEmpty. Operand 13475 states and 71464 transitions. [2021-06-05 13:36:04,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:04,054 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:04,054 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:04,055 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-06-05 13:36:04,055 INFO L430 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:04,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:04,055 INFO L82 PathProgramCache]: Analyzing trace with hash -656816579, now seen corresponding path program 118 times [2021-06-05 13:36:04,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:04,055 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736974464] [2021-06-05 13:36:04,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:04,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:04,318 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 22 [2021-06-05 13:36:04,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:04,373 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:04,373 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736974464] [2021-06-05 13:36:04,374 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736974464] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:04,374 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:04,374 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:04,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944220205] [2021-06-05 13:36:04,374 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:04,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:04,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:04,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:04,374 INFO L87 Difference]: Start difference. First operand 13475 states and 71464 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:04,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:04,629 INFO L93 Difference]: Finished difference Result 31995 states and 160410 transitions. [2021-06-05 13:36:04,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:04,630 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:04,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:04,728 INFO L225 Difference]: With dead ends: 31995 [2021-06-05 13:36:04,728 INFO L226 Difference]: Without dead ends: 31118 [2021-06-05 13:36:04,728 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 343.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:05,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31118 states. [2021-06-05 13:36:05,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31118 to 13363. [2021-06-05 13:36:05,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13363 states, 13362 states have (on average 5.309384822631342) internal successors, (70944), 13362 states have internal predecessors, (70944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:05,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13363 states to 13363 states and 70944 transitions. [2021-06-05 13:36:05,997 INFO L78 Accepts]: Start accepts. Automaton has 13363 states and 70944 transitions. Word has length 33 [2021-06-05 13:36:05,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:05,997 INFO L482 AbstractCegarLoop]: Abstraction has 13363 states and 70944 transitions. [2021-06-05 13:36:05,997 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:05,997 INFO L276 IsEmpty]: Start isEmpty. Operand 13363 states and 70944 transitions. [2021-06-05 13:36:06,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:06,024 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:06,024 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:06,024 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-06-05 13:36:06,024 INFO L430 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:06,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:06,024 INFO L82 PathProgramCache]: Analyzing trace with hash -658734309, now seen corresponding path program 119 times [2021-06-05 13:36:06,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:06,024 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212624286] [2021-06-05 13:36:06,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:06,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:06,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:06,187 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:06,187 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212624286] [2021-06-05 13:36:06,187 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212624286] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:06,187 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:06,187 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:06,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121742871] [2021-06-05 13:36:06,187 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:06,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:06,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:06,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:06,188 INFO L87 Difference]: Start difference. First operand 13363 states and 70944 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:06,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:06,409 INFO L93 Difference]: Finished difference Result 32426 states and 162369 transitions. [2021-06-05 13:36:06,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:06,409 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:06,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:06,510 INFO L225 Difference]: With dead ends: 32426 [2021-06-05 13:36:06,511 INFO L226 Difference]: Without dead ends: 31532 [2021-06-05 13:36:06,511 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 164.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:07,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31532 states. [2021-06-05 13:36:07,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31532 to 13618. [2021-06-05 13:36:07,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13618 states, 13617 states have (on average 5.285084820445032) internal successors, (71967), 13617 states have internal predecessors, (71967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:07,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13618 states to 13618 states and 71967 transitions. [2021-06-05 13:36:07,788 INFO L78 Accepts]: Start accepts. Automaton has 13618 states and 71967 transitions. Word has length 33 [2021-06-05 13:36:07,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:07,788 INFO L482 AbstractCegarLoop]: Abstraction has 13618 states and 71967 transitions. [2021-06-05 13:36:07,788 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:07,788 INFO L276 IsEmpty]: Start isEmpty. Operand 13618 states and 71967 transitions. [2021-06-05 13:36:07,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:07,815 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:07,815 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:07,815 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-06-05 13:36:07,815 INFO L430 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:07,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:07,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1050867453, now seen corresponding path program 120 times [2021-06-05 13:36:07,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:07,816 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244822824] [2021-06-05 13:36:07,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:07,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:07,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:07,977 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:07,977 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244822824] [2021-06-05 13:36:07,977 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244822824] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:07,977 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:07,977 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:07,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814812843] [2021-06-05 13:36:07,978 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:07,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:07,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:07,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:07,978 INFO L87 Difference]: Start difference. First operand 13618 states and 71967 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:08,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:08,210 INFO L93 Difference]: Finished difference Result 32297 states and 161600 transitions. [2021-06-05 13:36:08,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:08,211 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:08,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:08,310 INFO L225 Difference]: With dead ends: 32297 [2021-06-05 13:36:08,310 INFO L226 Difference]: Without dead ends: 31067 [2021-06-05 13:36:08,310 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 184.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:09,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31067 states. [2021-06-05 13:36:09,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31067 to 13153. [2021-06-05 13:36:09,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13153 states, 13152 states have (on average 5.3321167883211675) internal successors, (70128), 13152 states have internal predecessors, (70128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:09,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13153 states to 13153 states and 70128 transitions. [2021-06-05 13:36:09,593 INFO L78 Accepts]: Start accepts. Automaton has 13153 states and 70128 transitions. Word has length 33 [2021-06-05 13:36:09,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:09,594 INFO L482 AbstractCegarLoop]: Abstraction has 13153 states and 70128 transitions. [2021-06-05 13:36:09,594 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:09,594 INFO L276 IsEmpty]: Start isEmpty. Operand 13153 states and 70128 transitions. [2021-06-05 13:36:09,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:09,621 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:09,621 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:09,621 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-06-05 13:36:09,621 INFO L430 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:09,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:09,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1955285691, now seen corresponding path program 121 times [2021-06-05 13:36:09,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:09,622 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956113518] [2021-06-05 13:36:09,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:09,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:09,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:09,793 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:09,793 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956113518] [2021-06-05 13:36:09,793 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956113518] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:09,793 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:09,793 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:09,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910527907] [2021-06-05 13:36:09,794 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:09,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:09,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:09,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:09,795 INFO L87 Difference]: Start difference. First operand 13153 states and 70128 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:10,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:10,032 INFO L93 Difference]: Finished difference Result 31566 states and 158987 transitions. [2021-06-05 13:36:10,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:10,032 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:10,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:10,131 INFO L225 Difference]: With dead ends: 31566 [2021-06-05 13:36:10,131 INFO L226 Difference]: Without dead ends: 30807 [2021-06-05 13:36:10,132 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 189.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:11,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30807 states. [2021-06-05 13:36:11,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30807 to 13431. [2021-06-05 13:36:11,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13431 states, 13430 states have (on average 5.3272524199553235) internal successors, (71545), 13430 states have internal predecessors, (71545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:11,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13431 states to 13431 states and 71545 transitions. [2021-06-05 13:36:11,444 INFO L78 Accepts]: Start accepts. Automaton has 13431 states and 71545 transitions. Word has length 33 [2021-06-05 13:36:11,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:11,444 INFO L482 AbstractCegarLoop]: Abstraction has 13431 states and 71545 transitions. [2021-06-05 13:36:11,444 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:11,444 INFO L276 IsEmpty]: Start isEmpty. Operand 13431 states and 71545 transitions. [2021-06-05 13:36:11,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:11,473 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:11,473 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:11,473 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-06-05 13:36:11,473 INFO L430 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:11,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:11,473 INFO L82 PathProgramCache]: Analyzing trace with hash 1108488729, now seen corresponding path program 122 times [2021-06-05 13:36:11,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:11,473 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115497218] [2021-06-05 13:36:11,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:11,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:11,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:11,640 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:11,640 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115497218] [2021-06-05 13:36:11,640 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115497218] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:11,640 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:11,640 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:11,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324426879] [2021-06-05 13:36:11,640 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:11,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:11,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:11,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:11,641 INFO L87 Difference]: Start difference. First operand 13431 states and 71545 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:12,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:12,081 INFO L93 Difference]: Finished difference Result 31558 states and 158839 transitions. [2021-06-05 13:36:12,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:12,082 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:12,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:12,195 INFO L225 Difference]: With dead ends: 31558 [2021-06-05 13:36:12,195 INFO L226 Difference]: Without dead ends: 30687 [2021-06-05 13:36:12,195 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 191.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:12,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30687 states. [2021-06-05 13:36:13,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30687 to 13311. [2021-06-05 13:36:13,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13311 states, 13310 states have (on average 5.333809166040571) internal successors, (70993), 13310 states have internal predecessors, (70993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:13,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13311 states to 13311 states and 70993 transitions. [2021-06-05 13:36:13,264 INFO L78 Accepts]: Start accepts. Automaton has 13311 states and 70993 transitions. Word has length 33 [2021-06-05 13:36:13,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:13,264 INFO L482 AbstractCegarLoop]: Abstraction has 13311 states and 70993 transitions. [2021-06-05 13:36:13,264 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:13,264 INFO L276 IsEmpty]: Start isEmpty. Operand 13311 states and 70993 transitions. [2021-06-05 13:36:13,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:13,292 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:13,292 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:13,292 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-06-05 13:36:13,292 INFO L430 AbstractCegarLoop]: === Iteration 130 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:13,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:13,292 INFO L82 PathProgramCache]: Analyzing trace with hash -588287301, now seen corresponding path program 123 times [2021-06-05 13:36:13,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:13,293 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856615275] [2021-06-05 13:36:13,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:13,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:13,495 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:13,495 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856615275] [2021-06-05 13:36:13,495 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856615275] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:13,495 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:13,495 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:13,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376224047] [2021-06-05 13:36:13,495 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:13,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:13,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:13,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:13,496 INFO L87 Difference]: Start difference. First operand 13311 states and 70993 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:13,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:13,902 INFO L93 Difference]: Finished difference Result 31777 states and 159886 transitions. [2021-06-05 13:36:13,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:13,902 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:13,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:14,001 INFO L225 Difference]: With dead ends: 31777 [2021-06-05 13:36:14,001 INFO L226 Difference]: Without dead ends: 31018 [2021-06-05 13:36:14,001 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 224.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:14,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31018 states. [2021-06-05 13:36:15,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31018 to 13499. [2021-06-05 13:36:15,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13499 states, 13498 states have (on average 5.320566009779227) internal successors, (71817), 13498 states have internal predecessors, (71817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:15,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13499 states to 13499 states and 71817 transitions. [2021-06-05 13:36:15,320 INFO L78 Accepts]: Start accepts. Automaton has 13499 states and 71817 transitions. Word has length 33 [2021-06-05 13:36:15,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:15,320 INFO L482 AbstractCegarLoop]: Abstraction has 13499 states and 71817 transitions. [2021-06-05 13:36:15,320 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:15,321 INFO L276 IsEmpty]: Start isEmpty. Operand 13499 states and 71817 transitions. [2021-06-05 13:36:15,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:15,350 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:15,350 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:15,350 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-06-05 13:36:15,350 INFO L430 AbstractCegarLoop]: === Iteration 131 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:15,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:15,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1799793339, now seen corresponding path program 124 times [2021-06-05 13:36:15,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:15,351 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315422026] [2021-06-05 13:36:15,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:15,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:15,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:15,534 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:15,534 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315422026] [2021-06-05 13:36:15,534 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315422026] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:15,534 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:15,534 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:15,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966256511] [2021-06-05 13:36:15,534 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:15,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:15,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:15,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:15,535 INFO L87 Difference]: Start difference. First operand 13499 states and 71817 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:15,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:15,759 INFO L93 Difference]: Finished difference Result 31912 states and 160357 transitions. [2021-06-05 13:36:15,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:15,759 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:15,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:15,859 INFO L225 Difference]: With dead ends: 31912 [2021-06-05 13:36:15,859 INFO L226 Difference]: Without dead ends: 30830 [2021-06-05 13:36:15,860 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 185.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:16,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30830 states. [2021-06-05 13:36:17,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30830 to 13311. [2021-06-05 13:36:17,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13311 states, 13310 states have (on average 5.326897069872277) internal successors, (70901), 13310 states have internal predecessors, (70901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:17,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13311 states to 13311 states and 70901 transitions. [2021-06-05 13:36:17,140 INFO L78 Accepts]: Start accepts. Automaton has 13311 states and 70901 transitions. Word has length 33 [2021-06-05 13:36:17,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:17,140 INFO L482 AbstractCegarLoop]: Abstraction has 13311 states and 70901 transitions. [2021-06-05 13:36:17,141 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:17,141 INFO L276 IsEmpty]: Start isEmpty. Operand 13311 states and 70901 transitions. [2021-06-05 13:36:17,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:17,168 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:17,168 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:17,168 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-06-05 13:36:17,168 INFO L430 AbstractCegarLoop]: === Iteration 132 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:17,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:17,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1445035367, now seen corresponding path program 125 times [2021-06-05 13:36:17,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:17,168 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338066004] [2021-06-05 13:36:17,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:17,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:17,346 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:17,346 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338066004] [2021-06-05 13:36:17,346 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338066004] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:17,346 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:17,346 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:17,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062036992] [2021-06-05 13:36:17,346 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:17,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:17,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:17,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:17,346 INFO L87 Difference]: Start difference. First operand 13311 states and 70901 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:17,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:17,585 INFO L93 Difference]: Finished difference Result 31757 states and 159722 transitions. [2021-06-05 13:36:17,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:17,586 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:17,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:17,684 INFO L225 Difference]: With dead ends: 31757 [2021-06-05 13:36:17,684 INFO L226 Difference]: Without dead ends: 31006 [2021-06-05 13:36:17,684 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 202.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:18,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31006 states. [2021-06-05 13:36:18,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31006 to 13495. [2021-06-05 13:36:18,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13495 states, 13494 states have (on average 5.314436045649918) internal successors, (71713), 13494 states have internal predecessors, (71713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:18,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13495 states to 13495 states and 71713 transitions. [2021-06-05 13:36:18,960 INFO L78 Accepts]: Start accepts. Automaton has 13495 states and 71713 transitions. Word has length 33 [2021-06-05 13:36:18,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:18,960 INFO L482 AbstractCegarLoop]: Abstraction has 13495 states and 71713 transitions. [2021-06-05 13:36:18,960 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:18,960 INFO L276 IsEmpty]: Start isEmpty. Operand 13495 states and 71713 transitions. [2021-06-05 13:36:18,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:18,987 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:18,987 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:18,987 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-06-05 13:36:18,987 INFO L430 AbstractCegarLoop]: === Iteration 133 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:18,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:18,988 INFO L82 PathProgramCache]: Analyzing trace with hash -2062558725, now seen corresponding path program 126 times [2021-06-05 13:36:18,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:18,988 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445940161] [2021-06-05 13:36:18,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:18,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:19,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:19,167 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:19,167 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445940161] [2021-06-05 13:36:19,167 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445940161] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:19,167 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:19,167 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:19,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654255297] [2021-06-05 13:36:19,167 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:19,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:19,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:19,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:19,167 INFO L87 Difference]: Start difference. First operand 13495 states and 71713 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:19,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:19,383 INFO L93 Difference]: Finished difference Result 31900 states and 160225 transitions. [2021-06-05 13:36:19,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:19,383 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:19,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:19,478 INFO L225 Difference]: With dead ends: 31900 [2021-06-05 13:36:19,478 INFO L226 Difference]: Without dead ends: 30730 [2021-06-05 13:36:19,479 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 184.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:20,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30730 states. [2021-06-05 13:36:20,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30730 to 13219. [2021-06-05 13:36:20,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13219 states, 13218 states have (on average 5.333408987743986) internal successors, (70497), 13218 states have internal predecessors, (70497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:20,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13219 states to 13219 states and 70497 transitions. [2021-06-05 13:36:20,750 INFO L78 Accepts]: Start accepts. Automaton has 13219 states and 70497 transitions. Word has length 33 [2021-06-05 13:36:20,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:20,750 INFO L482 AbstractCegarLoop]: Abstraction has 13219 states and 70497 transitions. [2021-06-05 13:36:20,750 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:20,750 INFO L276 IsEmpty]: Start isEmpty. Operand 13219 states and 70497 transitions. [2021-06-05 13:36:20,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:20,777 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:20,777 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:20,777 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-06-05 13:36:20,777 INFO L430 AbstractCegarLoop]: === Iteration 134 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:20,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:20,777 INFO L82 PathProgramCache]: Analyzing trace with hash 574879647, now seen corresponding path program 127 times [2021-06-05 13:36:20,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:20,777 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612834574] [2021-06-05 13:36:20,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:20,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:20,923 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:20,923 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612834574] [2021-06-05 13:36:20,923 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612834574] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:20,923 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:20,923 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:20,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765687150] [2021-06-05 13:36:20,923 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:20,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:20,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:20,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:20,923 INFO L87 Difference]: Start difference. First operand 13219 states and 70497 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:21,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:21,207 INFO L93 Difference]: Finished difference Result 31223 states and 157332 transitions. [2021-06-05 13:36:21,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:21,208 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:21,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:21,556 INFO L225 Difference]: With dead ends: 31223 [2021-06-05 13:36:21,556 INFO L226 Difference]: Without dead ends: 30464 [2021-06-05 13:36:21,556 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 172.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:22,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30464 states. [2021-06-05 13:36:22,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30464 to 13395. [2021-06-05 13:36:22,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13395 states, 13394 states have (on average 5.323652381663432) internal successors, (71305), 13394 states have internal predecessors, (71305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:22,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13395 states to 13395 states and 71305 transitions. [2021-06-05 13:36:22,723 INFO L78 Accepts]: Start accepts. Automaton has 13395 states and 71305 transitions. Word has length 33 [2021-06-05 13:36:22,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:22,723 INFO L482 AbstractCegarLoop]: Abstraction has 13395 states and 71305 transitions. [2021-06-05 13:36:22,723 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:22,723 INFO L276 IsEmpty]: Start isEmpty. Operand 13395 states and 71305 transitions. [2021-06-05 13:36:22,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:22,750 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:22,750 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:22,750 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-06-05 13:36:22,750 INFO L430 AbstractCegarLoop]: === Iteration 135 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:22,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:22,750 INFO L82 PathProgramCache]: Analyzing trace with hash -271917315, now seen corresponding path program 128 times [2021-06-05 13:36:22,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:22,751 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458111886] [2021-06-05 13:36:22,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:22,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:22,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:22,900 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:22,900 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458111886] [2021-06-05 13:36:22,900 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458111886] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:22,900 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:22,900 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:22,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513824108] [2021-06-05 13:36:22,900 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:22,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:22,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:22,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:22,901 INFO L87 Difference]: Start difference. First operand 13395 states and 71305 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:23,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:23,348 INFO L93 Difference]: Finished difference Result 31215 states and 157184 transitions. [2021-06-05 13:36:23,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:23,349 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:23,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:23,446 INFO L225 Difference]: With dead ends: 31215 [2021-06-05 13:36:23,446 INFO L226 Difference]: Without dead ends: 30344 [2021-06-05 13:36:23,447 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 172.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:24,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30344 states. [2021-06-05 13:36:24,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30344 to 13275. [2021-06-05 13:36:24,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13275 states, 13274 states have (on average 5.330495705891216) internal successors, (70757), 13274 states have internal predecessors, (70757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:24,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13275 states to 13275 states and 70757 transitions. [2021-06-05 13:36:24,534 INFO L78 Accepts]: Start accepts. Automaton has 13275 states and 70757 transitions. Word has length 33 [2021-06-05 13:36:24,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:24,535 INFO L482 AbstractCegarLoop]: Abstraction has 13275 states and 70757 transitions. [2021-06-05 13:36:24,535 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:24,535 INFO L276 IsEmpty]: Start isEmpty. Operand 13275 states and 70757 transitions. [2021-06-05 13:36:24,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:24,702 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:24,702 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:24,702 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-06-05 13:36:24,702 INFO L430 AbstractCegarLoop]: === Iteration 136 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:24,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:24,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1448181891, now seen corresponding path program 129 times [2021-06-05 13:36:24,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:24,702 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385893453] [2021-06-05 13:36:24,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:24,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:24,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:24,890 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:24,890 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385893453] [2021-06-05 13:36:24,890 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385893453] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:24,890 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:24,890 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:24,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227622129] [2021-06-05 13:36:24,890 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:24,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:24,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:24,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:24,891 INFO L87 Difference]: Start difference. First operand 13275 states and 70757 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:25,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:25,139 INFO L93 Difference]: Finished difference Result 31199 states and 157176 transitions. [2021-06-05 13:36:25,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:25,139 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:25,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:25,238 INFO L225 Difference]: With dead ends: 31199 [2021-06-05 13:36:25,238 INFO L226 Difference]: Without dead ends: 30440 [2021-06-05 13:36:25,238 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 208.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:25,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30440 states. [2021-06-05 13:36:26,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30440 to 13387. [2021-06-05 13:36:26,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13387 states, 13386 states have (on average 5.320558792768564) internal successors, (71221), 13386 states have internal predecessors, (71221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:26,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13387 states to 13387 states and 71221 transitions. [2021-06-05 13:36:26,476 INFO L78 Accepts]: Start accepts. Automaton has 13387 states and 71221 transitions. Word has length 33 [2021-06-05 13:36:26,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:26,476 INFO L482 AbstractCegarLoop]: Abstraction has 13387 states and 71221 transitions. [2021-06-05 13:36:26,476 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:26,476 INFO L276 IsEmpty]: Start isEmpty. Operand 13387 states and 71221 transitions. [2021-06-05 13:36:26,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:26,503 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:26,504 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:26,504 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-06-05 13:36:26,504 INFO L430 AbstractCegarLoop]: === Iteration 137 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:26,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:26,504 INFO L82 PathProgramCache]: Analyzing trace with hash 2050758525, now seen corresponding path program 130 times [2021-06-05 13:36:26,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:26,504 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104421821] [2021-06-05 13:36:26,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:26,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:26,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:26,653 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:26,653 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104421821] [2021-06-05 13:36:26,653 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104421821] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:26,653 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:26,653 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:26,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379102376] [2021-06-05 13:36:26,653 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:26,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:26,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:26,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:26,654 INFO L87 Difference]: Start difference. First operand 13387 states and 71221 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:26,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:26,892 INFO L93 Difference]: Finished difference Result 31175 states and 156972 transitions. [2021-06-05 13:36:26,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:26,905 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:26,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:27,007 INFO L225 Difference]: With dead ends: 31175 [2021-06-05 13:36:27,007 INFO L226 Difference]: Without dead ends: 30328 [2021-06-05 13:36:27,007 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 175.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:27,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30328 states. [2021-06-05 13:36:28,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30328 to 13275. [2021-06-05 13:36:28,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13275 states, 13274 states have (on average 5.326276932348953) internal successors, (70701), 13274 states have internal predecessors, (70701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:28,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13275 states to 13275 states and 70701 transitions. [2021-06-05 13:36:28,242 INFO L78 Accepts]: Start accepts. Automaton has 13275 states and 70701 transitions. Word has length 33 [2021-06-05 13:36:28,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:28,242 INFO L482 AbstractCegarLoop]: Abstraction has 13275 states and 70701 transitions. [2021-06-05 13:36:28,242 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:28,242 INFO L276 IsEmpty]: Start isEmpty. Operand 13275 states and 70701 transitions. [2021-06-05 13:36:28,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:28,270 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:28,270 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:28,270 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-06-05 13:36:28,270 INFO L430 AbstractCegarLoop]: === Iteration 138 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:28,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:28,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1990037339, now seen corresponding path program 131 times [2021-06-05 13:36:28,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:28,271 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115322997] [2021-06-05 13:36:28,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:28,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:28,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:28,430 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:28,430 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115322997] [2021-06-05 13:36:28,430 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115322997] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:28,430 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:28,430 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:28,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625232006] [2021-06-05 13:36:28,431 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:28,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:28,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:28,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:28,431 INFO L87 Difference]: Start difference. First operand 13275 states and 70701 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:28,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:28,693 INFO L93 Difference]: Finished difference Result 31183 states and 157064 transitions. [2021-06-05 13:36:28,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:28,694 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:28,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:28,793 INFO L225 Difference]: With dead ends: 31183 [2021-06-05 13:36:28,793 INFO L226 Difference]: Without dead ends: 30432 [2021-06-05 13:36:28,793 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 174.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:29,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30432 states. [2021-06-05 13:36:30,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30432 to 13387. [2021-06-05 13:36:30,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13387 states, 13386 states have (on average 5.316375317495892) internal successors, (71165), 13386 states have internal predecessors, (71165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:30,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13387 states to 13387 states and 71165 transitions. [2021-06-05 13:36:30,089 INFO L78 Accepts]: Start accepts. Automaton has 13387 states and 71165 transitions. Word has length 33 [2021-06-05 13:36:30,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:30,089 INFO L482 AbstractCegarLoop]: Abstraction has 13387 states and 71165 transitions. [2021-06-05 13:36:30,089 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:30,089 INFO L276 IsEmpty]: Start isEmpty. Operand 13387 states and 71165 transitions. [2021-06-05 13:36:30,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:30,116 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:30,116 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:30,116 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-06-05 13:36:30,116 INFO L430 AbstractCegarLoop]: === Iteration 139 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:30,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:30,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1509135293, now seen corresponding path program 132 times [2021-06-05 13:36:30,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:30,116 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990565227] [2021-06-05 13:36:30,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:30,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:30,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:30,263 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:30,263 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990565227] [2021-06-05 13:36:30,263 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990565227] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:30,263 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:30,263 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:30,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803662546] [2021-06-05 13:36:30,263 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:30,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:30,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:30,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:30,264 INFO L87 Difference]: Start difference. First operand 13387 states and 71165 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:30,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:30,524 INFO L93 Difference]: Finished difference Result 31167 states and 156888 transitions. [2021-06-05 13:36:30,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:30,525 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:30,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:30,620 INFO L225 Difference]: With dead ends: 31167 [2021-06-05 13:36:30,620 INFO L226 Difference]: Without dead ends: 30264 [2021-06-05 13:36:30,620 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 171.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:31,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30264 states. [2021-06-05 13:36:31,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30264 to 13219. [2021-06-05 13:36:31,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13219 states, 13218 states have (on average 5.331290664245725) internal successors, (70469), 13218 states have internal predecessors, (70469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:31,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13219 states to 13219 states and 70469 transitions. [2021-06-05 13:36:31,887 INFO L78 Accepts]: Start accepts. Automaton has 13219 states and 70469 transitions. Word has length 33 [2021-06-05 13:36:31,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:31,887 INFO L482 AbstractCegarLoop]: Abstraction has 13219 states and 70469 transitions. [2021-06-05 13:36:31,887 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:31,887 INFO L276 IsEmpty]: Start isEmpty. Operand 13219 states and 70469 transitions. [2021-06-05 13:36:31,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:31,914 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:31,914 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:31,914 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-06-05 13:36:31,914 INFO L430 AbstractCegarLoop]: === Iteration 140 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:31,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:31,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1553355995, now seen corresponding path program 133 times [2021-06-05 13:36:31,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:31,914 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445698224] [2021-06-05 13:36:31,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:31,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:32,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:32,071 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:32,071 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445698224] [2021-06-05 13:36:32,071 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445698224] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:32,071 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:32,071 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:32,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339115061] [2021-06-05 13:36:32,072 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:32,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:32,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:32,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:32,072 INFO L87 Difference]: Start difference. First operand 13219 states and 70469 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:32,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:32,548 INFO L93 Difference]: Finished difference Result 31506 states and 158659 transitions. [2021-06-05 13:36:32,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:32,548 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:32,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:32,712 INFO L225 Difference]: With dead ends: 31506 [2021-06-05 13:36:32,712 INFO L226 Difference]: Without dead ends: 30747 [2021-06-05 13:36:32,713 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 183.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:33,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30747 states. [2021-06-05 13:36:33,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30747 to 13419. [2021-06-05 13:36:34,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13419 states, 13418 states have (on average 5.323073483380534) internal successors, (71425), 13418 states have internal predecessors, (71425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:34,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13419 states to 13419 states and 71425 transitions. [2021-06-05 13:36:34,056 INFO L78 Accepts]: Start accepts. Automaton has 13419 states and 71425 transitions. Word has length 33 [2021-06-05 13:36:34,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:34,057 INFO L482 AbstractCegarLoop]: Abstraction has 13419 states and 71425 transitions. [2021-06-05 13:36:34,057 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:34,057 INFO L276 IsEmpty]: Start isEmpty. Operand 13419 states and 71425 transitions. [2021-06-05 13:36:34,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:34,084 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:34,084 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:34,084 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-06-05 13:36:34,084 INFO L430 AbstractCegarLoop]: === Iteration 141 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:34,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:34,084 INFO L82 PathProgramCache]: Analyzing trace with hash 757329115, now seen corresponding path program 134 times [2021-06-05 13:36:34,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:34,084 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934357930] [2021-06-05 13:36:34,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:34,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:34,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:34,238 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:34,238 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934357930] [2021-06-05 13:36:34,238 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934357930] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:34,238 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:34,238 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:34,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305474727] [2021-06-05 13:36:34,238 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:34,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:34,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:34,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:34,239 INFO L87 Difference]: Start difference. First operand 13419 states and 71425 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:34,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:34,619 INFO L93 Difference]: Finished difference Result 31482 states and 158455 transitions. [2021-06-05 13:36:34,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:34,619 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:34,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:34,715 INFO L225 Difference]: With dead ends: 31482 [2021-06-05 13:36:34,715 INFO L226 Difference]: Without dead ends: 30635 [2021-06-05 13:36:34,715 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 180.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:35,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30635 states. [2021-06-05 13:36:35,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30635 to 13307. [2021-06-05 13:36:35,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13307 states, 13306 states have (on average 5.328799038027958) internal successors, (70905), 13306 states have internal predecessors, (70905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:36,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70905 transitions. [2021-06-05 13:36:36,030 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70905 transitions. Word has length 33 [2021-06-05 13:36:36,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:36,030 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70905 transitions. [2021-06-05 13:36:36,030 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:36,031 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70905 transitions. [2021-06-05 13:36:36,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:36,060 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:36,060 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:36,060 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-06-05 13:36:36,060 INFO L430 AbstractCegarLoop]: === Iteration 142 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:36,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:36,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1127380029, now seen corresponding path program 135 times [2021-06-05 13:36:36,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:36,060 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375463793] [2021-06-05 13:36:36,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:36,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:36,235 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:36,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375463793] [2021-06-05 13:36:36,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375463793] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:36,235 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:36,235 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:36,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42610073] [2021-06-05 13:36:36,235 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:36,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:36,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:36,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:36,235 INFO L87 Difference]: Start difference. First operand 13307 states and 70905 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:36,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:36,485 INFO L93 Difference]: Finished difference Result 31741 states and 159662 transitions. [2021-06-05 13:36:36,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:36,486 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:36,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:36,587 INFO L225 Difference]: With dead ends: 31741 [2021-06-05 13:36:36,587 INFO L226 Difference]: Without dead ends: 30982 [2021-06-05 13:36:36,587 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 201.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:37,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30982 states. [2021-06-05 13:36:37,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30982 to 13495. [2021-06-05 13:36:37,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13495 states, 13494 states have (on average 5.31562175781829) internal successors, (71729), 13494 states have internal predecessors, (71729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:37,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13495 states to 13495 states and 71729 transitions. [2021-06-05 13:36:37,892 INFO L78 Accepts]: Start accepts. Automaton has 13495 states and 71729 transitions. Word has length 33 [2021-06-05 13:36:37,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:37,892 INFO L482 AbstractCegarLoop]: Abstraction has 13495 states and 71729 transitions. [2021-06-05 13:36:37,892 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:37,892 INFO L276 IsEmpty]: Start isEmpty. Operand 13495 states and 71729 transitions. [2021-06-05 13:36:37,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:37,919 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:37,919 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:37,919 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-06-05 13:36:37,919 INFO L430 AbstractCegarLoop]: === Iteration 143 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:37,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:37,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1557081307, now seen corresponding path program 136 times [2021-06-05 13:36:37,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:37,920 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271880087] [2021-06-05 13:36:37,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:37,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:38,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:38,095 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:38,095 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271880087] [2021-06-05 13:36:38,095 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271880087] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:38,095 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:38,095 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:38,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119999072] [2021-06-05 13:36:38,095 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:38,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:38,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:38,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:38,095 INFO L87 Difference]: Start difference. First operand 13495 states and 71729 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:38,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:38,310 INFO L93 Difference]: Finished difference Result 31876 states and 160133 transitions. [2021-06-05 13:36:38,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:38,310 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:38,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:38,407 INFO L225 Difference]: With dead ends: 31876 [2021-06-05 13:36:38,408 INFO L226 Difference]: Without dead ends: 30794 [2021-06-05 13:36:38,408 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 181.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:39,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30794 states. [2021-06-05 13:36:39,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30794 to 13307. [2021-06-05 13:36:39,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13307 states, 13306 states have (on average 5.322185480234481) internal successors, (70817), 13306 states have internal predecessors, (70817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:39,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70817 transitions. [2021-06-05 13:36:39,686 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70817 transitions. Word has length 33 [2021-06-05 13:36:39,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:39,688 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70817 transitions. [2021-06-05 13:36:39,688 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:39,688 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70817 transitions. [2021-06-05 13:36:39,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:39,721 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:39,721 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:39,721 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-06-05 13:36:39,721 INFO L430 AbstractCegarLoop]: === Iteration 144 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:39,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:39,722 INFO L82 PathProgramCache]: Analyzing trace with hash -2104679205, now seen corresponding path program 137 times [2021-06-05 13:36:39,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:39,722 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116651844] [2021-06-05 13:36:39,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:39,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:39,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:39,903 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:39,903 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116651844] [2021-06-05 13:36:39,903 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116651844] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:39,904 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:39,904 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:39,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904596451] [2021-06-05 13:36:39,904 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:39,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:39,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:39,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:39,904 INFO L87 Difference]: Start difference. First operand 13307 states and 70817 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:40,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:40,168 INFO L93 Difference]: Finished difference Result 31681 states and 159338 transitions. [2021-06-05 13:36:40,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:40,168 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:40,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:40,265 INFO L225 Difference]: With dead ends: 31681 [2021-06-05 13:36:40,265 INFO L226 Difference]: Without dead ends: 30946 [2021-06-05 13:36:40,265 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 201.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:41,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30946 states. [2021-06-05 13:36:41,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30946 to 13483. [2021-06-05 13:36:41,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13483 states, 13482 states have (on average 5.310858923008456) internal successors, (71601), 13482 states have internal predecessors, (71601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:41,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13483 states to 13483 states and 71601 transitions. [2021-06-05 13:36:41,541 INFO L78 Accepts]: Start accepts. Automaton has 13483 states and 71601 transitions. Word has length 33 [2021-06-05 13:36:41,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:41,542 INFO L482 AbstractCegarLoop]: Abstraction has 13483 states and 71601 transitions. [2021-06-05 13:36:41,542 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:41,542 INFO L276 IsEmpty]: Start isEmpty. Operand 13483 states and 71601 transitions. [2021-06-05 13:36:41,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:41,568 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:41,569 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:41,569 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-06-05 13:36:41,569 INFO L430 AbstractCegarLoop]: === Iteration 145 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:41,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:41,569 INFO L82 PathProgramCache]: Analyzing trace with hash -2029144899, now seen corresponding path program 138 times [2021-06-05 13:36:41,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:41,569 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918994055] [2021-06-05 13:36:41,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:41,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:41,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:41,735 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:41,735 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918994055] [2021-06-05 13:36:41,735 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918994055] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:41,735 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:41,735 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:41,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865629656] [2021-06-05 13:36:41,735 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:41,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:41,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:41,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:41,736 INFO L87 Difference]: Start difference. First operand 13483 states and 71601 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:41,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:41,945 INFO L93 Difference]: Finished difference Result 31840 states and 159913 transitions. [2021-06-05 13:36:41,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:41,945 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:41,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:42,281 INFO L225 Difference]: With dead ends: 31840 [2021-06-05 13:36:42,281 INFO L226 Difference]: Without dead ends: 30682 [2021-06-05 13:36:42,281 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 172.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:42,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30682 states. [2021-06-05 13:36:43,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30682 to 13219. [2021-06-05 13:36:43,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13219 states, 13218 states have (on average 5.327961870177031) internal successors, (70425), 13218 states have internal predecessors, (70425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:43,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13219 states to 13219 states and 70425 transitions. [2021-06-05 13:36:43,328 INFO L78 Accepts]: Start accepts. Automaton has 13219 states and 70425 transitions. Word has length 33 [2021-06-05 13:36:43,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:43,328 INFO L482 AbstractCegarLoop]: Abstraction has 13219 states and 70425 transitions. [2021-06-05 13:36:43,328 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:43,328 INFO L276 IsEmpty]: Start isEmpty. Operand 13219 states and 70425 transitions. [2021-06-05 13:36:43,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:43,358 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:43,358 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:43,358 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-06-05 13:36:43,358 INFO L430 AbstractCegarLoop]: === Iteration 146 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:43,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:43,358 INFO L82 PathProgramCache]: Analyzing trace with hash -276468423, now seen corresponding path program 139 times [2021-06-05 13:36:43,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:43,358 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900377722] [2021-06-05 13:36:43,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:43,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:43,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:43,523 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:43,523 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900377722] [2021-06-05 13:36:43,523 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900377722] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:43,523 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:43,523 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:43,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634794337] [2021-06-05 13:36:43,523 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:43,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:43,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:43,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:43,524 INFO L87 Difference]: Start difference. First operand 13219 states and 70425 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:43,828 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 29 [2021-06-05 13:36:43,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:43,936 INFO L93 Difference]: Finished difference Result 31478 states and 158515 transitions. [2021-06-05 13:36:43,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:43,937 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:43,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:44,036 INFO L225 Difference]: With dead ends: 31478 [2021-06-05 13:36:44,036 INFO L226 Difference]: Without dead ends: 30727 [2021-06-05 13:36:44,036 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 377.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:44,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30727 states. [2021-06-05 13:36:45,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30727 to 13419. [2021-06-05 13:36:45,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13419 states, 13418 states have (on average 5.31979430615591) internal successors, (71381), 13418 states have internal predecessors, (71381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:45,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13419 states to 13419 states and 71381 transitions. [2021-06-05 13:36:45,357 INFO L78 Accepts]: Start accepts. Automaton has 13419 states and 71381 transitions. Word has length 33 [2021-06-05 13:36:45,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:45,357 INFO L482 AbstractCegarLoop]: Abstraction has 13419 states and 71381 transitions. [2021-06-05 13:36:45,357 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:45,357 INFO L276 IsEmpty]: Start isEmpty. Operand 13419 states and 71381 transitions. [2021-06-05 13:36:45,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:45,393 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:45,393 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:45,394 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-06-05 13:36:45,394 INFO L430 AbstractCegarLoop]: === Iteration 147 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:45,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:45,394 INFO L82 PathProgramCache]: Analyzing trace with hash -757370469, now seen corresponding path program 140 times [2021-06-05 13:36:45,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:45,394 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055382145] [2021-06-05 13:36:45,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:45,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:45,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:45,553 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:45,553 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055382145] [2021-06-05 13:36:45,553 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055382145] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:45,553 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:45,553 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:45,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037679612] [2021-06-05 13:36:45,553 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:45,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:45,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:45,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:45,553 INFO L87 Difference]: Start difference. First operand 13419 states and 71381 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:45,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:45,783 INFO L93 Difference]: Finished difference Result 31462 states and 158339 transitions. [2021-06-05 13:36:45,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:45,783 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:45,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:45,881 INFO L225 Difference]: With dead ends: 31462 [2021-06-05 13:36:45,881 INFO L226 Difference]: Without dead ends: 30615 [2021-06-05 13:36:45,881 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 184.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:46,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30615 states. [2021-06-05 13:36:47,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30615 to 13307. [2021-06-05 13:36:47,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13307 states, 13306 states have (on average 5.325492259131219) internal successors, (70861), 13306 states have internal predecessors, (70861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:47,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70861 transitions. [2021-06-05 13:36:47,155 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70861 transitions. Word has length 33 [2021-06-05 13:36:47,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:47,155 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70861 transitions. [2021-06-05 13:36:47,155 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:47,155 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70861 transitions. [2021-06-05 13:36:47,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:47,183 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:47,183 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:47,183 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-06-05 13:36:47,183 INFO L430 AbstractCegarLoop]: === Iteration 148 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:47,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:47,183 INFO L82 PathProgramCache]: Analyzing trace with hash -702444389, now seen corresponding path program 141 times [2021-06-05 13:36:47,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:47,183 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930738201] [2021-06-05 13:36:47,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:47,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:47,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:47,360 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:47,360 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930738201] [2021-06-05 13:36:47,360 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930738201] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:47,360 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:47,360 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:47,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466867572] [2021-06-05 13:36:47,360 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:47,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:47,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:47,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:47,361 INFO L87 Difference]: Start difference. First operand 13307 states and 70861 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:47,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:47,597 INFO L93 Difference]: Finished difference Result 31709 states and 159502 transitions. [2021-06-05 13:36:47,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:47,597 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:47,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:47,695 INFO L225 Difference]: With dead ends: 31709 [2021-06-05 13:36:47,695 INFO L226 Difference]: Without dead ends: 30958 [2021-06-05 13:36:47,695 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 202.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:48,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30958 states. [2021-06-05 13:36:48,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30958 to 13491. [2021-06-05 13:36:48,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13491 states, 13490 states have (on average 5.313046701260193) internal successors, (71673), 13490 states have internal predecessors, (71673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:48,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13491 states to 13491 states and 71673 transitions. [2021-06-05 13:36:48,974 INFO L78 Accepts]: Start accepts. Automaton has 13491 states and 71673 transitions. Word has length 33 [2021-06-05 13:36:48,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:48,974 INFO L482 AbstractCegarLoop]: Abstraction has 13491 states and 71673 transitions. [2021-06-05 13:36:48,974 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:48,974 INFO L276 IsEmpty]: Start isEmpty. Operand 13491 states and 71673 transitions. [2021-06-05 13:36:49,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:49,002 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:49,002 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:49,002 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-06-05 13:36:49,002 INFO L430 AbstractCegarLoop]: === Iteration 149 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:49,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:49,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1016620187, now seen corresponding path program 142 times [2021-06-05 13:36:49,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:49,003 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518189238] [2021-06-05 13:36:49,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:49,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:49,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:49,183 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:49,183 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518189238] [2021-06-05 13:36:49,183 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518189238] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:49,183 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:49,183 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:49,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16760683] [2021-06-05 13:36:49,183 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:49,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:49,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:49,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:49,184 INFO L87 Difference]: Start difference. First operand 13491 states and 71673 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:49,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:49,404 INFO L93 Difference]: Finished difference Result 31852 states and 160005 transitions. [2021-06-05 13:36:49,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:49,405 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:49,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:49,505 INFO L225 Difference]: With dead ends: 31852 [2021-06-05 13:36:49,505 INFO L226 Difference]: Without dead ends: 30774 [2021-06-05 13:36:49,505 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 185.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:50,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30774 states. [2021-06-05 13:36:50,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30774 to 13307. [2021-06-05 13:36:50,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13307 states, 13306 states have (on average 5.318878701337742) internal successors, (70773), 13306 states have internal predecessors, (70773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:50,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70773 transitions. [2021-06-05 13:36:50,775 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70773 transitions. Word has length 33 [2021-06-05 13:36:50,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:50,775 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70773 transitions. [2021-06-05 13:36:50,775 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:50,775 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70773 transitions. [2021-06-05 13:36:50,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:50,801 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:50,801 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:50,801 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-06-05 13:36:50,801 INFO L430 AbstractCegarLoop]: === Iteration 150 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:50,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:50,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1491830659, now seen corresponding path program 143 times [2021-06-05 13:36:50,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:50,801 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841667166] [2021-06-05 13:36:50,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:50,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:50,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:50,970 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:50,970 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841667166] [2021-06-05 13:36:50,970 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841667166] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:50,970 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:50,970 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:50,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082881440] [2021-06-05 13:36:50,970 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:50,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:50,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:50,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:50,971 INFO L87 Difference]: Start difference. First operand 13307 states and 70773 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:51,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:51,194 INFO L93 Difference]: Finished difference Result 31669 states and 159250 transitions. [2021-06-05 13:36:51,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:51,194 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:51,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:51,291 INFO L225 Difference]: With dead ends: 31669 [2021-06-05 13:36:51,292 INFO L226 Difference]: Without dead ends: 30934 [2021-06-05 13:36:51,292 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 194.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:52,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30934 states. [2021-06-05 13:36:52,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30934 to 13483. [2021-06-05 13:36:52,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13483 states, 13482 states have (on average 5.30759531226821) internal successors, (71557), 13482 states have internal predecessors, (71557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:52,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13483 states to 13483 states and 71557 transitions. [2021-06-05 13:36:52,576 INFO L78 Accepts]: Start accepts. Automaton has 13483 states and 71557 transitions. Word has length 33 [2021-06-05 13:36:52,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:52,576 INFO L482 AbstractCegarLoop]: Abstraction has 13483 states and 71557 transitions. [2021-06-05 13:36:52,576 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:52,576 INFO L276 IsEmpty]: Start isEmpty. Operand 13483 states and 71557 transitions. [2021-06-05 13:36:52,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:52,604 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:52,604 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:52,604 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-06-05 13:36:52,605 INFO L430 AbstractCegarLoop]: === Iteration 151 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:52,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:52,605 INFO L82 PathProgramCache]: Analyzing trace with hash 849732827, now seen corresponding path program 144 times [2021-06-05 13:36:52,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:52,605 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834080767] [2021-06-05 13:36:52,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:52,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:52,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:52,775 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:52,775 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834080767] [2021-06-05 13:36:52,775 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834080767] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:52,775 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:52,775 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:52,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99907471] [2021-06-05 13:36:52,775 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:52,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:52,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:52,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:52,776 INFO L87 Difference]: Start difference. First operand 13483 states and 71557 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:53,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:53,165 INFO L93 Difference]: Finished difference Result 31828 states and 159825 transitions. [2021-06-05 13:36:53,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:53,165 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:53,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:53,264 INFO L225 Difference]: With dead ends: 31828 [2021-06-05 13:36:53,264 INFO L226 Difference]: Without dead ends: 30626 [2021-06-05 13:36:53,264 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 176.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:53,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30626 states. [2021-06-05 13:36:54,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30626 to 13175. [2021-06-05 13:36:54,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13175 states, 13174 states have (on average 5.332548960072871) internal successors, (70251), 13174 states have internal predecessors, (70251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:54,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13175 states to 13175 states and 70251 transitions. [2021-06-05 13:36:54,351 INFO L78 Accepts]: Start accepts. Automaton has 13175 states and 70251 transitions. Word has length 33 [2021-06-05 13:36:54,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:54,351 INFO L482 AbstractCegarLoop]: Abstraction has 13175 states and 70251 transitions. [2021-06-05 13:36:54,351 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:54,351 INFO L276 IsEmpty]: Start isEmpty. Operand 13175 states and 70251 transitions. [2021-06-05 13:36:54,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:54,378 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:54,378 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:54,378 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-06-05 13:36:54,379 INFO L430 AbstractCegarLoop]: === Iteration 152 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:54,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:54,379 INFO L82 PathProgramCache]: Analyzing trace with hash 450086331, now seen corresponding path program 145 times [2021-06-05 13:36:54,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:54,379 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565892179] [2021-06-05 13:36:54,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:54,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:54,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:54,703 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:54,703 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565892179] [2021-06-05 13:36:54,703 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565892179] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:54,703 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:54,703 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:54,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018701739] [2021-06-05 13:36:54,704 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:54,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:54,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:54,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:54,704 INFO L87 Difference]: Start difference. First operand 13175 states and 70251 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:54,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:54,959 INFO L93 Difference]: Finished difference Result 31644 states and 159296 transitions. [2021-06-05 13:36:54,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:54,960 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:54,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:55,057 INFO L225 Difference]: With dead ends: 31644 [2021-06-05 13:36:55,057 INFO L226 Difference]: Without dead ends: 30885 [2021-06-05 13:36:55,057 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 203.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:55,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30885 states. [2021-06-05 13:36:56,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30885 to 13433. [2021-06-05 13:36:56,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13433 states, 13432 states have (on average 5.325640262060751) internal successors, (71534), 13432 states have internal predecessors, (71534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:56,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13433 states to 13433 states and 71534 transitions. [2021-06-05 13:36:56,292 INFO L78 Accepts]: Start accepts. Automaton has 13433 states and 71534 transitions. Word has length 33 [2021-06-05 13:36:56,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:56,292 INFO L482 AbstractCegarLoop]: Abstraction has 13433 states and 71534 transitions. [2021-06-05 13:36:56,292 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:56,292 INFO L276 IsEmpty]: Start isEmpty. Operand 13433 states and 71534 transitions. [2021-06-05 13:36:56,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:56,320 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:56,320 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:56,320 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-06-05 13:36:56,320 INFO L430 AbstractCegarLoop]: === Iteration 153 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:56,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:56,321 INFO L82 PathProgramCache]: Analyzing trace with hash -396710631, now seen corresponding path program 146 times [2021-06-05 13:36:56,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:56,321 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295451843] [2021-06-05 13:36:56,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:56,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:56,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:56,481 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:56,481 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295451843] [2021-06-05 13:36:56,481 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295451843] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:56,481 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:56,481 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:56,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850201071] [2021-06-05 13:36:56,482 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:56,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:56,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:56,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:56,482 INFO L87 Difference]: Start difference. First operand 13433 states and 71534 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:56,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:56,717 INFO L93 Difference]: Finished difference Result 31636 states and 159148 transitions. [2021-06-05 13:36:56,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:56,717 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:56,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:56,814 INFO L225 Difference]: With dead ends: 31636 [2021-06-05 13:36:56,814 INFO L226 Difference]: Without dead ends: 30765 [2021-06-05 13:36:56,814 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 186.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:57,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30765 states. [2021-06-05 13:36:57,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30765 to 13313. [2021-06-05 13:36:57,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13313 states, 13312 states have (on average 5.332181490384615) internal successors, (70982), 13312 states have internal predecessors, (70982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:58,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13313 states to 13313 states and 70982 transitions. [2021-06-05 13:36:58,036 INFO L78 Accepts]: Start accepts. Automaton has 13313 states and 70982 transitions. Word has length 33 [2021-06-05 13:36:58,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:58,037 INFO L482 AbstractCegarLoop]: Abstraction has 13313 states and 70982 transitions. [2021-06-05 13:36:58,037 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:58,037 INFO L276 IsEmpty]: Start isEmpty. Operand 13313 states and 70982 transitions. [2021-06-05 13:36:58,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:58,065 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:58,065 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:58,065 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-06-05 13:36:58,066 INFO L430 AbstractCegarLoop]: === Iteration 154 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:58,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:58,066 INFO L82 PathProgramCache]: Analyzing trace with hash -2093486661, now seen corresponding path program 147 times [2021-06-05 13:36:58,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:58,066 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159911623] [2021-06-05 13:36:58,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:58,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:58,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:58,235 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:58,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159911623] [2021-06-05 13:36:58,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159911623] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:58,235 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:58,235 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:36:58,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622938352] [2021-06-05 13:36:58,235 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:36:58,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:58,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:36:58,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:36:58,235 INFO L87 Difference]: Start difference. First operand 13313 states and 70982 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:58,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:58,470 INFO L93 Difference]: Finished difference Result 31855 states and 160195 transitions. [2021-06-05 13:36:58,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:36:58,470 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:36:58,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:58,570 INFO L225 Difference]: With dead ends: 31855 [2021-06-05 13:36:58,570 INFO L226 Difference]: Without dead ends: 31096 [2021-06-05 13:36:58,570 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 194.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:36:59,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31096 states. [2021-06-05 13:36:59,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31096 to 13501. [2021-06-05 13:36:59,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13501 states, 13500 states have (on average 5.318962962962963) internal successors, (71806), 13500 states have internal predecessors, (71806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:59,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13501 states to 13501 states and 71806 transitions. [2021-06-05 13:36:59,871 INFO L78 Accepts]: Start accepts. Automaton has 13501 states and 71806 transitions. Word has length 33 [2021-06-05 13:36:59,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:59,871 INFO L482 AbstractCegarLoop]: Abstraction has 13501 states and 71806 transitions. [2021-06-05 13:36:59,871 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:59,871 INFO L276 IsEmpty]: Start isEmpty. Operand 13501 states and 71806 transitions. [2021-06-05 13:36:59,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:36:59,899 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:59,899 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:59,899 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-06-05 13:36:59,899 INFO L430 AbstractCegarLoop]: === Iteration 155 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:59,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:59,899 INFO L82 PathProgramCache]: Analyzing trace with hash 294593979, now seen corresponding path program 148 times [2021-06-05 13:36:59,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:59,900 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539203747] [2021-06-05 13:36:59,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:59,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:00,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:00,066 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:00,066 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539203747] [2021-06-05 13:37:00,066 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539203747] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:00,066 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:00,066 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:00,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140576096] [2021-06-05 13:37:00,066 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:00,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:00,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:00,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:00,067 INFO L87 Difference]: Start difference. First operand 13501 states and 71806 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:00,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:00,281 INFO L93 Difference]: Finished difference Result 31990 states and 160666 transitions. [2021-06-05 13:37:00,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:00,281 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:00,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:00,380 INFO L225 Difference]: With dead ends: 31990 [2021-06-05 13:37:00,380 INFO L226 Difference]: Without dead ends: 30908 [2021-06-05 13:37:00,380 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 172.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:01,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30908 states. [2021-06-05 13:37:01,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30908 to 13313. [2021-06-05 13:37:01,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13313 states, 13312 states have (on average 5.3252704326923075) internal successors, (70890), 13312 states have internal predecessors, (70890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:01,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13313 states to 13313 states and 70890 transitions. [2021-06-05 13:37:01,692 INFO L78 Accepts]: Start accepts. Automaton has 13313 states and 70890 transitions. Word has length 33 [2021-06-05 13:37:01,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:01,692 INFO L482 AbstractCegarLoop]: Abstraction has 13313 states and 70890 transitions. [2021-06-05 13:37:01,692 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:01,692 INFO L276 IsEmpty]: Start isEmpty. Operand 13313 states and 70890 transitions. [2021-06-05 13:37:01,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:01,720 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:01,720 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:01,720 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-06-05 13:37:01,720 INFO L430 AbstractCegarLoop]: === Iteration 156 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:01,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:01,720 INFO L82 PathProgramCache]: Analyzing trace with hash 1344732569, now seen corresponding path program 149 times [2021-06-05 13:37:01,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:01,720 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165544262] [2021-06-05 13:37:01,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:01,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:01,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:01,889 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:01,890 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165544262] [2021-06-05 13:37:01,890 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165544262] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:01,890 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:01,890 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:01,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236832136] [2021-06-05 13:37:01,890 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:01,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:01,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:01,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:01,890 INFO L87 Difference]: Start difference. First operand 13313 states and 70890 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:02,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:02,333 INFO L93 Difference]: Finished difference Result 31835 states and 160031 transitions. [2021-06-05 13:37:02,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:02,333 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:02,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:02,443 INFO L225 Difference]: With dead ends: 31835 [2021-06-05 13:37:02,443 INFO L226 Difference]: Without dead ends: 31084 [2021-06-05 13:37:02,443 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 191.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:03,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31084 states. [2021-06-05 13:37:03,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31084 to 13497. [2021-06-05 13:37:03,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13497 states, 13496 states have (on average 5.312833432128038) internal successors, (71702), 13496 states have internal predecessors, (71702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:03,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13497 states to 13497 states and 71702 transitions. [2021-06-05 13:37:03,564 INFO L78 Accepts]: Start accepts. Automaton has 13497 states and 71702 transitions. Word has length 33 [2021-06-05 13:37:03,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:03,564 INFO L482 AbstractCegarLoop]: Abstraction has 13497 states and 71702 transitions. [2021-06-05 13:37:03,564 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:03,564 INFO L276 IsEmpty]: Start isEmpty. Operand 13497 states and 71702 transitions. [2021-06-05 13:37:03,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:03,593 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:03,593 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:03,593 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-06-05 13:37:03,593 INFO L430 AbstractCegarLoop]: === Iteration 157 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:03,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:03,593 INFO L82 PathProgramCache]: Analyzing trace with hash 727209211, now seen corresponding path program 150 times [2021-06-05 13:37:03,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:03,594 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538908968] [2021-06-05 13:37:03,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:03,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:03,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:03,760 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:03,760 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538908968] [2021-06-05 13:37:03,760 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538908968] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:03,760 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:03,760 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:03,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357196951] [2021-06-05 13:37:03,760 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:03,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:03,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:03,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:03,761 INFO L87 Difference]: Start difference. First operand 13497 states and 71702 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:04,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:04,151 INFO L93 Difference]: Finished difference Result 31978 states and 160534 transitions. [2021-06-05 13:37:04,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:04,152 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:04,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:04,254 INFO L225 Difference]: With dead ends: 31978 [2021-06-05 13:37:04,254 INFO L226 Difference]: Without dead ends: 30808 [2021-06-05 13:37:04,254 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 172.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:04,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30808 states. [2021-06-05 13:37:05,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30808 to 13221. [2021-06-05 13:37:05,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13221 states, 13220 states have (on average 5.33161875945537) internal successors, (70484), 13220 states have internal predecessors, (70484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:05,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13221 states to 13221 states and 70484 transitions. [2021-06-05 13:37:05,560 INFO L78 Accepts]: Start accepts. Automaton has 13221 states and 70484 transitions. Word has length 33 [2021-06-05 13:37:05,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:05,560 INFO L482 AbstractCegarLoop]: Abstraction has 13221 states and 70484 transitions. [2021-06-05 13:37:05,560 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:05,560 INFO L276 IsEmpty]: Start isEmpty. Operand 13221 states and 70484 transitions. [2021-06-05 13:37:05,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:05,588 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:05,588 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:05,588 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-06-05 13:37:05,588 INFO L430 AbstractCegarLoop]: === Iteration 158 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:05,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:05,588 INFO L82 PathProgramCache]: Analyzing trace with hash -849025221, now seen corresponding path program 151 times [2021-06-05 13:37:05,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:05,588 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892799221] [2021-06-05 13:37:05,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:05,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:05,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:05,727 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:05,728 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892799221] [2021-06-05 13:37:05,728 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892799221] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:05,728 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:05,728 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:05,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618920302] [2021-06-05 13:37:05,728 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:05,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:05,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:05,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:05,728 INFO L87 Difference]: Start difference. First operand 13221 states and 70484 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:05,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:05,966 INFO L93 Difference]: Finished difference Result 31353 states and 157851 transitions. [2021-06-05 13:37:05,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:05,966 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:05,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:06,064 INFO L225 Difference]: With dead ends: 31353 [2021-06-05 13:37:06,064 INFO L226 Difference]: Without dead ends: 30594 [2021-06-05 13:37:06,064 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 164.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:06,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30594 states. [2021-06-05 13:37:07,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30594 to 13401. [2021-06-05 13:37:07,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13401 states, 13400 states have (on average 5.321791044776119) internal successors, (71312), 13400 states have internal predecessors, (71312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:07,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13401 states to 13401 states and 71312 transitions. [2021-06-05 13:37:07,389 INFO L78 Accepts]: Start accepts. Automaton has 13401 states and 71312 transitions. Word has length 33 [2021-06-05 13:37:07,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:07,390 INFO L482 AbstractCegarLoop]: Abstraction has 13401 states and 71312 transitions. [2021-06-05 13:37:07,390 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:07,390 INFO L276 IsEmpty]: Start isEmpty. Operand 13401 states and 71312 transitions. [2021-06-05 13:37:07,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:07,417 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:07,417 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:07,417 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-06-05 13:37:07,417 INFO L430 AbstractCegarLoop]: === Iteration 159 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:07,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:07,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1695822183, now seen corresponding path program 152 times [2021-06-05 13:37:07,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:07,417 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701943909] [2021-06-05 13:37:07,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:07,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:07,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:07,555 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:07,555 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701943909] [2021-06-05 13:37:07,555 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701943909] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:07,555 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:07,555 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:07,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668810508] [2021-06-05 13:37:07,555 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:07,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:07,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:07,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:07,556 INFO L87 Difference]: Start difference. First operand 13401 states and 71312 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:07,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:07,793 INFO L93 Difference]: Finished difference Result 31345 states and 157703 transitions. [2021-06-05 13:37:07,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:07,793 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:07,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:07,890 INFO L225 Difference]: With dead ends: 31345 [2021-06-05 13:37:07,890 INFO L226 Difference]: Without dead ends: 30474 [2021-06-05 13:37:07,890 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 163.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:08,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30474 states. [2021-06-05 13:37:09,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30474 to 13281. [2021-06-05 13:37:09,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13281 states, 13280 states have (on average 5.328313253012048) internal successors, (70760), 13280 states have internal predecessors, (70760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:09,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13281 states to 13281 states and 70760 transitions. [2021-06-05 13:37:09,174 INFO L78 Accepts]: Start accepts. Automaton has 13281 states and 70760 transitions. Word has length 33 [2021-06-05 13:37:09,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:09,174 INFO L482 AbstractCegarLoop]: Abstraction has 13281 states and 70760 transitions. [2021-06-05 13:37:09,174 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:09,174 INFO L276 IsEmpty]: Start isEmpty. Operand 13281 states and 70760 transitions. [2021-06-05 13:37:09,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:09,201 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:09,201 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:09,201 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-06-05 13:37:09,201 INFO L430 AbstractCegarLoop]: === Iteration 160 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:09,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:09,202 INFO L82 PathProgramCache]: Analyzing trace with hash 263930969, now seen corresponding path program 153 times [2021-06-05 13:37:09,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:09,202 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622170759] [2021-06-05 13:37:09,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:09,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:09,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:09,351 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:09,351 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622170759] [2021-06-05 13:37:09,351 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622170759] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:09,351 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:09,351 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:09,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252696438] [2021-06-05 13:37:09,351 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:09,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:09,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:09,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:09,352 INFO L87 Difference]: Start difference. First operand 13281 states and 70760 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:09,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:09,589 INFO L93 Difference]: Finished difference Result 31369 states and 157847 transitions. [2021-06-05 13:37:09,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:09,590 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:09,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:09,687 INFO L225 Difference]: With dead ends: 31369 [2021-06-05 13:37:09,687 INFO L226 Difference]: Without dead ends: 30610 [2021-06-05 13:37:09,688 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 167.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:10,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30610 states. [2021-06-05 13:37:10,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30610 to 13405. [2021-06-05 13:37:10,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13405 states, 13404 states have (on average 5.316621903909281) internal successors, (71264), 13404 states have internal predecessors, (71264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:11,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13405 states to 13405 states and 71264 transitions. [2021-06-05 13:37:11,025 INFO L78 Accepts]: Start accepts. Automaton has 13405 states and 71264 transitions. Word has length 33 [2021-06-05 13:37:11,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:11,025 INFO L482 AbstractCegarLoop]: Abstraction has 13405 states and 71264 transitions. [2021-06-05 13:37:11,025 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:11,025 INFO L276 IsEmpty]: Start isEmpty. Operand 13405 states and 71264 transitions. [2021-06-05 13:37:11,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:11,053 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:11,053 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:11,053 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-06-05 13:37:11,053 INFO L430 AbstractCegarLoop]: === Iteration 161 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:11,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:11,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1272669095, now seen corresponding path program 154 times [2021-06-05 13:37:11,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:11,053 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216404030] [2021-06-05 13:37:11,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:11,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:11,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:11,201 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:11,201 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216404030] [2021-06-05 13:37:11,201 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216404030] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:11,201 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:11,201 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:11,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184859676] [2021-06-05 13:37:11,202 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:11,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:11,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:11,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:11,202 INFO L87 Difference]: Start difference. First operand 13405 states and 71264 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:11,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:11,447 INFO L93 Difference]: Finished difference Result 31373 states and 157735 transitions. [2021-06-05 13:37:11,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:11,447 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:11,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:11,551 INFO L225 Difference]: With dead ends: 31373 [2021-06-05 13:37:11,552 INFO L226 Difference]: Without dead ends: 30486 [2021-06-05 13:37:11,552 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 172.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:12,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30486 states. [2021-06-05 13:37:12,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30486 to 13281. [2021-06-05 13:37:12,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13281 states, 13280 states have (on average 5.323795180722891) internal successors, (70700), 13280 states have internal predecessors, (70700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:12,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13281 states to 13281 states and 70700 transitions. [2021-06-05 13:37:12,923 INFO L78 Accepts]: Start accepts. Automaton has 13281 states and 70700 transitions. Word has length 33 [2021-06-05 13:37:12,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:12,923 INFO L482 AbstractCegarLoop]: Abstraction has 13281 states and 70700 transitions. [2021-06-05 13:37:12,923 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:12,923 INFO L276 IsEmpty]: Start isEmpty. Operand 13281 states and 70700 transitions. [2021-06-05 13:37:12,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:12,950 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:12,950 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:12,950 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-06-05 13:37:12,950 INFO L430 AbstractCegarLoop]: === Iteration 162 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:12,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:12,950 INFO L82 PathProgramCache]: Analyzing trace with hash -592817097, now seen corresponding path program 155 times [2021-06-05 13:37:12,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:12,950 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679735614] [2021-06-05 13:37:12,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:12,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:13,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:13,090 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:13,090 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679735614] [2021-06-05 13:37:13,090 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679735614] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:13,090 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:13,090 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:13,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978925223] [2021-06-05 13:37:13,090 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:13,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:13,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:13,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:13,090 INFO L87 Difference]: Start difference. First operand 13281 states and 70700 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:13,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:13,551 INFO L93 Difference]: Finished difference Result 31349 states and 157715 transitions. [2021-06-05 13:37:13,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:13,551 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:13,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:13,648 INFO L225 Difference]: With dead ends: 31349 [2021-06-05 13:37:13,649 INFO L226 Difference]: Without dead ends: 30598 [2021-06-05 13:37:13,649 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 173.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:14,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30598 states. [2021-06-05 13:37:14,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30598 to 13401. [2021-06-05 13:37:14,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13401 states, 13400 states have (on average 5.312835820895522) internal successors, (71192), 13400 states have internal predecessors, (71192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:14,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13401 states to 13401 states and 71192 transitions. [2021-06-05 13:37:14,730 INFO L78 Accepts]: Start accepts. Automaton has 13401 states and 71192 transitions. Word has length 33 [2021-06-05 13:37:14,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:14,730 INFO L482 AbstractCegarLoop]: Abstraction has 13401 states and 71192 transitions. [2021-06-05 13:37:14,730 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:14,730 INFO L276 IsEmpty]: Start isEmpty. Operand 13401 states and 71192 transitions. [2021-06-05 13:37:14,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:14,759 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:14,759 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:14,759 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-06-05 13:37:14,759 INFO L430 AbstractCegarLoop]: === Iteration 163 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:14,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:14,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1698511513, now seen corresponding path program 156 times [2021-06-05 13:37:14,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:14,760 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943757695] [2021-06-05 13:37:14,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:14,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:15,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:15,039 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:15,039 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943757695] [2021-06-05 13:37:15,039 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943757695] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:15,039 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:15,039 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:15,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810953592] [2021-06-05 13:37:15,040 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:15,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:15,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:15,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:15,040 INFO L87 Difference]: Start difference. First operand 13401 states and 71192 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:15,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:15,280 INFO L93 Difference]: Finished difference Result 31361 states and 157635 transitions. [2021-06-05 13:37:15,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:15,280 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:15,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:15,378 INFO L225 Difference]: With dead ends: 31361 [2021-06-05 13:37:15,378 INFO L226 Difference]: Without dead ends: 30418 [2021-06-05 13:37:15,378 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 301.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:16,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30418 states. [2021-06-05 13:37:16,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30418 to 13221. [2021-06-05 13:37:16,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13221 states, 13220 states have (on average 5.329349470499244) internal successors, (70454), 13220 states have internal predecessors, (70454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:16,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13221 states to 13221 states and 70454 transitions. [2021-06-05 13:37:16,624 INFO L78 Accepts]: Start accepts. Automaton has 13221 states and 70454 transitions. Word has length 33 [2021-06-05 13:37:16,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:16,624 INFO L482 AbstractCegarLoop]: Abstraction has 13221 states and 70454 transitions. [2021-06-05 13:37:16,624 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:16,624 INFO L276 IsEmpty]: Start isEmpty. Operand 13221 states and 70454 transitions. [2021-06-05 13:37:16,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:16,650 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:16,650 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:16,650 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-06-05 13:37:16,651 INFO L430 AbstractCegarLoop]: === Iteration 164 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:16,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:16,651 INFO L82 PathProgramCache]: Analyzing trace with hash 363547737, now seen corresponding path program 157 times [2021-06-05 13:37:16,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:16,651 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474323809] [2021-06-05 13:37:16,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:16,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:16,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:16,809 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:16,809 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474323809] [2021-06-05 13:37:16,809 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474323809] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:16,809 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:16,809 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:16,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720778326] [2021-06-05 13:37:16,809 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:16,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:16,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:16,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:16,810 INFO L87 Difference]: Start difference. First operand 13221 states and 70454 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:17,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:17,053 INFO L93 Difference]: Finished difference Result 31879 states and 160267 transitions. [2021-06-05 13:37:17,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:17,053 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:17,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:17,150 INFO L225 Difference]: With dead ends: 31879 [2021-06-05 13:37:17,151 INFO L226 Difference]: Without dead ends: 31120 [2021-06-05 13:37:17,151 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 179.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:17,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31120 states. [2021-06-05 13:37:18,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31120 to 13503. [2021-06-05 13:37:18,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13503 states, 13502 states have (on average 5.317656643460228) internal successors, (71799), 13502 states have internal predecessors, (71799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:18,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13503 states to 13503 states and 71799 transitions. [2021-06-05 13:37:18,407 INFO L78 Accepts]: Start accepts. Automaton has 13503 states and 71799 transitions. Word has length 33 [2021-06-05 13:37:18,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:18,408 INFO L482 AbstractCegarLoop]: Abstraction has 13503 states and 71799 transitions. [2021-06-05 13:37:18,408 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:18,408 INFO L276 IsEmpty]: Start isEmpty. Operand 13503 states and 71799 transitions. [2021-06-05 13:37:18,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:18,435 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:18,436 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:18,436 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-06-05 13:37:18,436 INFO L430 AbstractCegarLoop]: === Iteration 165 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:18,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:18,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1543338919, now seen corresponding path program 158 times [2021-06-05 13:37:18,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:18,436 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075929028] [2021-06-05 13:37:18,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:18,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:18,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:18,594 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:18,594 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075929028] [2021-06-05 13:37:18,594 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075929028] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:18,594 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:18,594 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:18,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128952883] [2021-06-05 13:37:18,594 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:18,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:18,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:18,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:18,594 INFO L87 Difference]: Start difference. First operand 13503 states and 71799 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:18,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:18,803 INFO L93 Difference]: Finished difference Result 32014 states and 160738 transitions. [2021-06-05 13:37:18,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:18,803 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:18,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:18,900 INFO L225 Difference]: With dead ends: 32014 [2021-06-05 13:37:18,901 INFO L226 Difference]: Without dead ends: 30932 [2021-06-05 13:37:18,901 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 162.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:19,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30932 states. [2021-06-05 13:37:20,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30932 to 13315. [2021-06-05 13:37:20,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13315 states, 13314 states have (on average 5.3237945020279405) internal successors, (70881), 13314 states have internal predecessors, (70881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:20,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13315 states to 13315 states and 70881 transitions. [2021-06-05 13:37:20,240 INFO L78 Accepts]: Start accepts. Automaton has 13315 states and 70881 transitions. Word has length 33 [2021-06-05 13:37:20,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:20,240 INFO L482 AbstractCegarLoop]: Abstraction has 13315 states and 70881 transitions. [2021-06-05 13:37:20,240 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:20,240 INFO L276 IsEmpty]: Start isEmpty. Operand 13315 states and 70881 transitions. [2021-06-05 13:37:20,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:20,267 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:20,267 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:20,267 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-06-05 13:37:20,267 INFO L430 AbstractCegarLoop]: === Iteration 166 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:20,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:20,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1764665275, now seen corresponding path program 159 times [2021-06-05 13:37:20,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:20,268 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348331895] [2021-06-05 13:37:20,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:20,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:20,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:20,411 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:20,411 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348331895] [2021-06-05 13:37:20,411 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348331895] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:20,411 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:20,411 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:20,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85069489] [2021-06-05 13:37:20,412 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:20,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:20,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:20,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:20,412 INFO L87 Difference]: Start difference. First operand 13315 states and 70881 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:20,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:20,647 INFO L93 Difference]: Finished difference Result 31684 states and 159270 transitions. [2021-06-05 13:37:20,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:20,647 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:20,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:20,744 INFO L225 Difference]: With dead ends: 31684 [2021-06-05 13:37:20,744 INFO L226 Difference]: Without dead ends: 30925 [2021-06-05 13:37:20,744 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 164.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:21,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30925 states. [2021-06-05 13:37:21,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30925 to 13439. [2021-06-05 13:37:22,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13439 states, 13438 states have (on average 5.312174430718857) internal successors, (71385), 13438 states have internal predecessors, (71385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:22,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13439 states to 13439 states and 71385 transitions. [2021-06-05 13:37:22,052 INFO L78 Accepts]: Start accepts. Automaton has 13439 states and 71385 transitions. Word has length 33 [2021-06-05 13:37:22,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:22,052 INFO L482 AbstractCegarLoop]: Abstraction has 13439 states and 71385 transitions. [2021-06-05 13:37:22,052 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:22,052 INFO L276 IsEmpty]: Start isEmpty. Operand 13439 states and 71385 transitions. [2021-06-05 13:37:22,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:22,081 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:22,081 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:22,081 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-06-05 13:37:22,081 INFO L430 AbstractCegarLoop]: === Iteration 167 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:22,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:22,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1809922983, now seen corresponding path program 160 times [2021-06-05 13:37:22,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:22,082 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622072810] [2021-06-05 13:37:22,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:22,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:22,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:22,239 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:22,239 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622072810] [2021-06-05 13:37:22,239 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622072810] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:22,239 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:22,239 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:22,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776191700] [2021-06-05 13:37:22,239 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:22,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:22,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:22,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:22,240 INFO L87 Difference]: Start difference. First operand 13439 states and 71385 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:22,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:22,477 INFO L93 Difference]: Finished difference Result 31688 states and 159158 transitions. [2021-06-05 13:37:22,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:22,477 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:22,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:22,807 INFO L225 Difference]: With dead ends: 31688 [2021-06-05 13:37:22,807 INFO L226 Difference]: Without dead ends: 30801 [2021-06-05 13:37:22,807 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 173.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:23,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30801 states. [2021-06-05 13:37:23,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30801 to 13315. [2021-06-05 13:37:23,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13315 states, 13314 states have (on average 5.319137749737119) internal successors, (70819), 13314 states have internal predecessors, (70819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:23,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13315 states to 13315 states and 70819 transitions. [2021-06-05 13:37:23,859 INFO L78 Accepts]: Start accepts. Automaton has 13315 states and 70819 transitions. Word has length 33 [2021-06-05 13:37:23,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:23,859 INFO L482 AbstractCegarLoop]: Abstraction has 13315 states and 70819 transitions. [2021-06-05 13:37:23,859 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:23,859 INFO L276 IsEmpty]: Start isEmpty. Operand 13315 states and 70819 transitions. [2021-06-05 13:37:23,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:23,886 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:23,886 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:23,886 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-06-05 13:37:23,886 INFO L430 AbstractCegarLoop]: === Iteration 168 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:23,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:23,887 INFO L82 PathProgramCache]: Analyzing trace with hash -747250599, now seen corresponding path program 161 times [2021-06-05 13:37:23,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:23,887 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492734285] [2021-06-05 13:37:23,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:23,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:24,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:24,030 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:24,031 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492734285] [2021-06-05 13:37:24,031 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492734285] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:24,031 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:24,031 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:24,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54380093] [2021-06-05 13:37:24,031 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:24,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:24,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:24,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:24,032 INFO L87 Difference]: Start difference. First operand 13315 states and 70819 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:24,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:24,465 INFO L93 Difference]: Finished difference Result 32020 states and 160725 transitions. [2021-06-05 13:37:24,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:24,466 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:24,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:24,564 INFO L225 Difference]: With dead ends: 32020 [2021-06-05 13:37:24,564 INFO L226 Difference]: Without dead ends: 31126 [2021-06-05 13:37:24,565 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 161.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:25,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31126 states. [2021-06-05 13:37:25,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31126 to 13505. [2021-06-05 13:37:25,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13505 states, 13504 states have (on average 5.300947867298579) internal successors, (71584), 13504 states have internal predecessors, (71584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:25,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13505 states to 13505 states and 71584 transitions. [2021-06-05 13:37:25,895 INFO L78 Accepts]: Start accepts. Automaton has 13505 states and 71584 transitions. Word has length 33 [2021-06-05 13:37:25,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:25,895 INFO L482 AbstractCegarLoop]: Abstraction has 13505 states and 71584 transitions. [2021-06-05 13:37:25,895 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:25,896 INFO L276 IsEmpty]: Start isEmpty. Operand 13505 states and 71584 transitions. [2021-06-05 13:37:25,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:25,927 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:25,927 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:25,927 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2021-06-05 13:37:25,927 INFO L430 AbstractCegarLoop]: === Iteration 169 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:25,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:25,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1921210309, now seen corresponding path program 162 times [2021-06-05 13:37:25,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:25,927 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779475197] [2021-06-05 13:37:25,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:25,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:26,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:26,070 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:26,070 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779475197] [2021-06-05 13:37:26,070 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779475197] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:26,070 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:26,070 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:26,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226505295] [2021-06-05 13:37:26,070 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:26,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:26,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:26,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:26,071 INFO L87 Difference]: Start difference. First operand 13505 states and 71584 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:26,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:26,321 INFO L93 Difference]: Finished difference Result 31889 states and 159952 transitions. [2021-06-05 13:37:26,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:26,322 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:26,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:26,421 INFO L225 Difference]: With dead ends: 31889 [2021-06-05 13:37:26,421 INFO L226 Difference]: Without dead ends: 30842 [2021-06-05 13:37:26,421 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:27,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30842 states. [2021-06-05 13:37:27,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30842 to 13221. [2021-06-05 13:37:27,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13221 states, 13220 states have (on average 5.325869894099848) internal successors, (70408), 13220 states have internal predecessors, (70408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:27,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13221 states to 13221 states and 70408 transitions. [2021-06-05 13:37:27,693 INFO L78 Accepts]: Start accepts. Automaton has 13221 states and 70408 transitions. Word has length 33 [2021-06-05 13:37:27,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:27,694 INFO L482 AbstractCegarLoop]: Abstraction has 13221 states and 70408 transitions. [2021-06-05 13:37:27,694 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:27,694 INFO L276 IsEmpty]: Start isEmpty. Operand 13221 states and 70408 transitions. [2021-06-05 13:37:27,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:27,720 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:27,720 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:27,720 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2021-06-05 13:37:27,721 INFO L430 AbstractCegarLoop]: === Iteration 170 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:27,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:27,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1466276681, now seen corresponding path program 163 times [2021-06-05 13:37:27,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:27,721 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136162479] [2021-06-05 13:37:27,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:27,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:27,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:27,872 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:27,872 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136162479] [2021-06-05 13:37:27,872 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136162479] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:27,872 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:27,872 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:27,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297862135] [2021-06-05 13:37:27,872 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:27,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:27,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:27,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:27,873 INFO L87 Difference]: Start difference. First operand 13221 states and 70408 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:28,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:28,104 INFO L93 Difference]: Finished difference Result 31841 states and 160080 transitions. [2021-06-05 13:37:28,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:28,104 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:28,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:28,204 INFO L225 Difference]: With dead ends: 31841 [2021-06-05 13:37:28,204 INFO L226 Difference]: Without dead ends: 31090 [2021-06-05 13:37:28,204 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 176.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:29,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31090 states. [2021-06-05 13:37:29,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31090 to 13497. [2021-06-05 13:37:29,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13497 states, 13496 states have (on average 5.315056312981624) internal successors, (71732), 13496 states have internal predecessors, (71732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:29,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13497 states to 13497 states and 71732 transitions. [2021-06-05 13:37:29,510 INFO L78 Accepts]: Start accepts. Automaton has 13497 states and 71732 transitions. Word has length 33 [2021-06-05 13:37:29,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:29,510 INFO L482 AbstractCegarLoop]: Abstraction has 13497 states and 71732 transitions. [2021-06-05 13:37:29,510 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:29,510 INFO L276 IsEmpty]: Start isEmpty. Operand 13497 states and 71732 transitions. [2021-06-05 13:37:29,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:29,539 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:29,539 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:29,539 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2021-06-05 13:37:29,540 INFO L430 AbstractCegarLoop]: === Iteration 171 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:29,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:29,540 INFO L82 PathProgramCache]: Analyzing trace with hash -2083800039, now seen corresponding path program 164 times [2021-06-05 13:37:29,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:29,540 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882866490] [2021-06-05 13:37:29,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:29,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:29,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:29,697 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:29,697 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882866490] [2021-06-05 13:37:29,697 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882866490] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:29,697 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:29,697 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:29,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175541991] [2021-06-05 13:37:29,698 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:29,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:29,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:29,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:29,698 INFO L87 Difference]: Start difference. First operand 13497 states and 71732 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:29,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:29,924 INFO L93 Difference]: Finished difference Result 31984 states and 160583 transitions. [2021-06-05 13:37:29,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:29,924 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:29,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:30,025 INFO L225 Difference]: With dead ends: 31984 [2021-06-05 13:37:30,025 INFO L226 Difference]: Without dead ends: 30906 [2021-06-05 13:37:30,026 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 159.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:30,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30906 states. [2021-06-05 13:37:31,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30906 to 13313. [2021-06-05 13:37:31,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13313 states, 13312 states have (on average 5.320612980769231) internal successors, (70828), 13312 states have internal predecessors, (70828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:31,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13313 states to 13313 states and 70828 transitions. [2021-06-05 13:37:31,296 INFO L78 Accepts]: Start accepts. Automaton has 13313 states and 70828 transitions. Word has length 33 [2021-06-05 13:37:31,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:31,296 INFO L482 AbstractCegarLoop]: Abstraction has 13313 states and 70828 transitions. [2021-06-05 13:37:31,296 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:31,296 INFO L276 IsEmpty]: Start isEmpty. Operand 13313 states and 70828 transitions. [2021-06-05 13:37:31,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:31,324 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:31,324 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:31,324 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2021-06-05 13:37:31,324 INFO L430 AbstractCegarLoop]: === Iteration 172 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:31,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:31,325 INFO L82 PathProgramCache]: Analyzing trace with hash -65159143, now seen corresponding path program 165 times [2021-06-05 13:37:31,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:31,325 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783444813] [2021-06-05 13:37:31,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:31,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:31,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:31,466 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:31,466 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783444813] [2021-06-05 13:37:31,467 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783444813] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:31,467 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:31,467 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:31,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989750080] [2021-06-05 13:37:31,467 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:31,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:31,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:31,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:31,467 INFO L87 Difference]: Start difference. First operand 13313 states and 70828 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:31,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:31,713 INFO L93 Difference]: Finished difference Result 31646 states and 159085 transitions. [2021-06-05 13:37:31,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:31,714 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:31,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:31,810 INFO L225 Difference]: With dead ends: 31646 [2021-06-05 13:37:31,810 INFO L226 Difference]: Without dead ends: 30895 [2021-06-05 13:37:31,810 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:32,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30895 states. [2021-06-05 13:37:33,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30895 to 13433. [2021-06-05 13:37:33,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13433 states, 13432 states have (on average 5.309708159618821) internal successors, (71320), 13432 states have internal predecessors, (71320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:33,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13433 states to 13433 states and 71320 transitions. [2021-06-05 13:37:33,101 INFO L78 Accepts]: Start accepts. Automaton has 13433 states and 71320 transitions. Word has length 33 [2021-06-05 13:37:33,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:33,101 INFO L482 AbstractCegarLoop]: Abstraction has 13433 states and 71320 transitions. [2021-06-05 13:37:33,101 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:33,101 INFO L276 IsEmpty]: Start isEmpty. Operand 13433 states and 71320 transitions. [2021-06-05 13:37:33,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:33,128 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:33,128 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:33,128 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2021-06-05 13:37:33,128 INFO L430 AbstractCegarLoop]: === Iteration 173 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:33,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:33,129 INFO L82 PathProgramCache]: Analyzing trace with hash 188181273, now seen corresponding path program 166 times [2021-06-05 13:37:33,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:33,129 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38094153] [2021-06-05 13:37:33,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:33,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:33,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:33,265 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:33,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38094153] [2021-06-05 13:37:33,265 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38094153] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:33,265 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:33,265 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:33,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959280690] [2021-06-05 13:37:33,265 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:33,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:33,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:33,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:33,265 INFO L87 Difference]: Start difference. First operand 13433 states and 71320 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:33,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:33,770 INFO L93 Difference]: Finished difference Result 31658 states and 159005 transitions. [2021-06-05 13:37:33,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:33,770 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:33,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:33,870 INFO L225 Difference]: With dead ends: 31658 [2021-06-05 13:37:33,870 INFO L226 Difference]: Without dead ends: 30775 [2021-06-05 13:37:33,870 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 163.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:34,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30775 states. [2021-06-05 13:37:34,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30775 to 13313. [2021-06-05 13:37:34,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13313 states, 13312 states have (on average 5.316105769230769) internal successors, (70768), 13312 states have internal predecessors, (70768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:34,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13313 states to 13313 states and 70768 transitions. [2021-06-05 13:37:34,941 INFO L78 Accepts]: Start accepts. Automaton has 13313 states and 70768 transitions. Word has length 33 [2021-06-05 13:37:34,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:34,941 INFO L482 AbstractCegarLoop]: Abstraction has 13313 states and 70768 transitions. [2021-06-05 13:37:34,941 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:34,941 INFO L276 IsEmpty]: Start isEmpty. Operand 13313 states and 70768 transitions. [2021-06-05 13:37:34,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:34,970 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:34,970 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:34,970 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2021-06-05 13:37:34,970 INFO L430 AbstractCegarLoop]: === Iteration 174 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:34,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:34,970 INFO L82 PathProgramCache]: Analyzing trace with hash 859738619, now seen corresponding path program 167 times [2021-06-05 13:37:34,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:34,970 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060027571] [2021-06-05 13:37:34,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:34,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:35,223 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-06-05 13:37:35,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:35,250 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:35,250 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060027571] [2021-06-05 13:37:35,250 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060027571] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:35,250 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:35,250 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:35,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390053375] [2021-06-05 13:37:35,250 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:35,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:35,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:35,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:35,250 INFO L87 Difference]: Start difference. First operand 13313 states and 70768 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:35,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:35,480 INFO L93 Difference]: Finished difference Result 32002 states and 160614 transitions. [2021-06-05 13:37:35,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:35,481 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:35,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:35,582 INFO L225 Difference]: With dead ends: 32002 [2021-06-05 13:37:35,583 INFO L226 Difference]: Without dead ends: 31108 [2021-06-05 13:37:35,583 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 287.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:36,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31108 states. [2021-06-05 13:37:36,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31108 to 13503. [2021-06-05 13:37:36,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13503 states, 13502 states have (on average 5.297955858391349) internal successors, (71533), 13502 states have internal predecessors, (71533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:36,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13503 states to 13503 states and 71533 transitions. [2021-06-05 13:37:36,874 INFO L78 Accepts]: Start accepts. Automaton has 13503 states and 71533 transitions. Word has length 33 [2021-06-05 13:37:36,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:36,874 INFO L482 AbstractCegarLoop]: Abstraction has 13503 states and 71533 transitions. [2021-06-05 13:37:36,874 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:36,874 INFO L276 IsEmpty]: Start isEmpty. Operand 13503 states and 71533 transitions. [2021-06-05 13:37:36,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:36,902 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:36,902 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:36,902 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2021-06-05 13:37:36,902 INFO L430 AbstractCegarLoop]: === Iteration 175 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:36,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:36,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1173274023, now seen corresponding path program 168 times [2021-06-05 13:37:36,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:36,903 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23733683] [2021-06-05 13:37:36,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:36,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:37,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:37,045 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:37,045 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23733683] [2021-06-05 13:37:37,045 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23733683] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:37,045 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:37,045 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:37,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870194061] [2021-06-05 13:37:37,045 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:37,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:37,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:37,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:37,046 INFO L87 Difference]: Start difference. First operand 13503 states and 71533 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:37,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:37,303 INFO L93 Difference]: Finished difference Result 31871 states and 159841 transitions. [2021-06-05 13:37:37,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:37,303 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:37,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:37,404 INFO L225 Difference]: With dead ends: 31871 [2021-06-05 13:37:37,404 INFO L226 Difference]: Without dead ends: 30780 [2021-06-05 13:37:37,404 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 169.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:38,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30780 states. [2021-06-05 13:37:38,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30780 to 13175. [2021-06-05 13:37:38,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13175 states, 13174 states have (on average 5.330879004098983) internal successors, (70229), 13174 states have internal predecessors, (70229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:38,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13175 states to 13175 states and 70229 transitions. [2021-06-05 13:37:38,673 INFO L78 Accepts]: Start accepts. Automaton has 13175 states and 70229 transitions. Word has length 33 [2021-06-05 13:37:38,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:38,673 INFO L482 AbstractCegarLoop]: Abstraction has 13175 states and 70229 transitions. [2021-06-05 13:37:38,674 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:38,674 INFO L276 IsEmpty]: Start isEmpty. Operand 13175 states and 70229 transitions. [2021-06-05 13:37:38,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:38,701 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:38,701 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:38,701 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2021-06-05 13:37:38,701 INFO L430 AbstractCegarLoop]: === Iteration 176 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:38,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:38,701 INFO L82 PathProgramCache]: Analyzing trace with hash 2039190461, now seen corresponding path program 169 times [2021-06-05 13:37:38,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:38,701 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933746802] [2021-06-05 13:37:38,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:38,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:38,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:38,838 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:38,838 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933746802] [2021-06-05 13:37:38,838 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933746802] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:38,838 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:38,838 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:38,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190711717] [2021-06-05 13:37:38,838 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:38,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:38,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:38,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:38,838 INFO L87 Difference]: Start difference. First operand 13175 states and 70229 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:39,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:39,078 INFO L93 Difference]: Finished difference Result 30788 states and 155165 transitions. [2021-06-05 13:37:39,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:39,079 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:39,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:39,176 INFO L225 Difference]: With dead ends: 30788 [2021-06-05 13:37:39,176 INFO L226 Difference]: Without dead ends: 30029 [2021-06-05 13:37:39,177 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 163.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:40,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30029 states. [2021-06-05 13:37:40,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30029 to 13379. [2021-06-05 13:37:40,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13379 states, 13378 states have (on average 5.322843474360891) internal successors, (71209), 13378 states have internal predecessors, (71209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:40,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13379 states to 13379 states and 71209 transitions. [2021-06-05 13:37:40,514 INFO L78 Accepts]: Start accepts. Automaton has 13379 states and 71209 transitions. Word has length 33 [2021-06-05 13:37:40,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:40,514 INFO L482 AbstractCegarLoop]: Abstraction has 13379 states and 71209 transitions. [2021-06-05 13:37:40,514 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:40,514 INFO L276 IsEmpty]: Start isEmpty. Operand 13379 states and 71209 transitions. [2021-06-05 13:37:40,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:40,541 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:40,541 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:40,541 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2021-06-05 13:37:40,541 INFO L430 AbstractCegarLoop]: === Iteration 177 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:40,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:40,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1192393499, now seen corresponding path program 170 times [2021-06-05 13:37:40,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:40,541 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050161512] [2021-06-05 13:37:40,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:40,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:40,676 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:40,676 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050161512] [2021-06-05 13:37:40,676 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050161512] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:40,676 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:40,676 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:40,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432185074] [2021-06-05 13:37:40,677 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:40,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:40,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:40,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:40,677 INFO L87 Difference]: Start difference. First operand 13379 states and 71209 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:40,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:40,917 INFO L93 Difference]: Finished difference Result 30780 states and 155017 transitions. [2021-06-05 13:37:40,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:40,918 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:40,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:41,011 INFO L225 Difference]: With dead ends: 30780 [2021-06-05 13:37:41,011 INFO L226 Difference]: Without dead ends: 29909 [2021-06-05 13:37:41,011 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 162.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:42,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29909 states. [2021-06-05 13:37:42,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29909 to 13259. [2021-06-05 13:37:42,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13259 states, 13258 states have (on average 5.329687735706743) internal successors, (70661), 13258 states have internal predecessors, (70661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:42,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13259 states to 13259 states and 70661 transitions. [2021-06-05 13:37:42,374 INFO L78 Accepts]: Start accepts. Automaton has 13259 states and 70661 transitions. Word has length 33 [2021-06-05 13:37:42,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:42,374 INFO L482 AbstractCegarLoop]: Abstraction has 13259 states and 70661 transitions. [2021-06-05 13:37:42,374 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:42,374 INFO L276 IsEmpty]: Start isEmpty. Operand 13259 states and 70661 transitions. [2021-06-05 13:37:42,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:42,401 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:42,401 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:42,401 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2021-06-05 13:37:42,401 INFO L430 AbstractCegarLoop]: === Iteration 178 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:42,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:42,401 INFO L82 PathProgramCache]: Analyzing trace with hash 16128923, now seen corresponding path program 171 times [2021-06-05 13:37:42,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:42,401 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321923890] [2021-06-05 13:37:42,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:42,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:42,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:42,537 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:42,537 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321923890] [2021-06-05 13:37:42,537 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321923890] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:42,537 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:42,537 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:42,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166792516] [2021-06-05 13:37:42,537 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:42,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:42,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:42,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:42,537 INFO L87 Difference]: Start difference. First operand 13259 states and 70661 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:42,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:42,770 INFO L93 Difference]: Finished difference Result 30764 states and 155009 transitions. [2021-06-05 13:37:42,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:42,770 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:42,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:42,864 INFO L225 Difference]: With dead ends: 30764 [2021-06-05 13:37:42,864 INFO L226 Difference]: Without dead ends: 30005 [2021-06-05 13:37:42,865 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 162.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:43,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30005 states. [2021-06-05 13:37:44,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30005 to 13371. [2021-06-05 13:37:44,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13371 states, 13370 states have (on average 5.319745699326851) internal successors, (71125), 13370 states have internal predecessors, (71125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:44,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13371 states to 13371 states and 71125 transitions. [2021-06-05 13:37:44,279 INFO L78 Accepts]: Start accepts. Automaton has 13371 states and 71125 transitions. Word has length 33 [2021-06-05 13:37:44,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:44,279 INFO L482 AbstractCegarLoop]: Abstraction has 13371 states and 71125 transitions. [2021-06-05 13:37:44,279 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:44,279 INFO L276 IsEmpty]: Start isEmpty. Operand 13371 states and 71125 transitions. [2021-06-05 13:37:44,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:44,306 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:44,306 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:44,306 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2021-06-05 13:37:44,306 INFO L430 AbstractCegarLoop]: === Iteration 179 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:44,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:44,306 INFO L82 PathProgramCache]: Analyzing trace with hash -779897957, now seen corresponding path program 172 times [2021-06-05 13:37:44,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:44,307 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380430882] [2021-06-05 13:37:44,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:44,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:44,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:44,444 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:44,444 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380430882] [2021-06-05 13:37:44,444 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380430882] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:44,444 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:44,444 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:44,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650307593] [2021-06-05 13:37:44,444 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:44,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:44,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:44,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:44,445 INFO L87 Difference]: Start difference. First operand 13371 states and 71125 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:44,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:44,945 INFO L93 Difference]: Finished difference Result 30740 states and 154805 transitions. [2021-06-05 13:37:44,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:44,945 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:44,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:45,043 INFO L225 Difference]: With dead ends: 30740 [2021-06-05 13:37:45,043 INFO L226 Difference]: Without dead ends: 29893 [2021-06-05 13:37:45,043 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 162.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:45,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29893 states. [2021-06-05 13:37:46,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29893 to 13259. [2021-06-05 13:37:46,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13259 states, 13258 states have (on average 5.325463870870418) internal successors, (70605), 13258 states have internal predecessors, (70605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:46,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13259 states to 13259 states and 70605 transitions. [2021-06-05 13:37:46,103 INFO L78 Accepts]: Start accepts. Automaton has 13259 states and 70605 transitions. Word has length 33 [2021-06-05 13:37:46,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:46,103 INFO L482 AbstractCegarLoop]: Abstraction has 13259 states and 70605 transitions. [2021-06-05 13:37:46,103 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:46,103 INFO L276 IsEmpty]: Start isEmpty. Operand 13259 states and 70605 transitions. [2021-06-05 13:37:46,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:46,130 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:46,130 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:46,130 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2021-06-05 13:37:46,130 INFO L430 AbstractCegarLoop]: === Iteration 180 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:46,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:46,130 INFO L82 PathProgramCache]: Analyzing trace with hash -840619143, now seen corresponding path program 173 times [2021-06-05 13:37:46,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:46,130 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886427880] [2021-06-05 13:37:46,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:46,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:46,406 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-06-05 13:37:46,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:46,433 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:46,433 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886427880] [2021-06-05 13:37:46,433 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886427880] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:46,433 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:46,433 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:46,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738237025] [2021-06-05 13:37:46,434 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:46,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:46,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:46,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:46,434 INFO L87 Difference]: Start difference. First operand 13259 states and 70605 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:46,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:46,695 INFO L93 Difference]: Finished difference Result 30748 states and 154897 transitions. [2021-06-05 13:37:46,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:46,696 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:46,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:46,791 INFO L225 Difference]: With dead ends: 30748 [2021-06-05 13:37:46,791 INFO L226 Difference]: Without dead ends: 29997 [2021-06-05 13:37:46,791 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 330.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:47,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29997 states. [2021-06-05 13:37:47,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29997 to 13371. [2021-06-05 13:37:48,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13371 states, 13370 states have (on average 5.315557217651459) internal successors, (71069), 13370 states have internal predecessors, (71069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:48,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13371 states to 13371 states and 71069 transitions. [2021-06-05 13:37:48,059 INFO L78 Accepts]: Start accepts. Automaton has 13371 states and 71069 transitions. Word has length 33 [2021-06-05 13:37:48,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:48,059 INFO L482 AbstractCegarLoop]: Abstraction has 13371 states and 71069 transitions. [2021-06-05 13:37:48,059 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:48,059 INFO L276 IsEmpty]: Start isEmpty. Operand 13371 states and 71069 transitions. [2021-06-05 13:37:48,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:48,086 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:48,087 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:48,087 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2021-06-05 13:37:48,087 INFO L430 AbstractCegarLoop]: === Iteration 181 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:48,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:48,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1321521189, now seen corresponding path program 174 times [2021-06-05 13:37:48,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:48,087 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333088452] [2021-06-05 13:37:48,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:48,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:48,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:48,224 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:48,224 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333088452] [2021-06-05 13:37:48,224 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333088452] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:48,224 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:48,224 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:48,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737053911] [2021-06-05 13:37:48,224 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:48,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:48,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:48,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:48,225 INFO L87 Difference]: Start difference. First operand 13371 states and 71069 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:48,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:48,451 INFO L93 Difference]: Finished difference Result 30732 states and 154721 transitions. [2021-06-05 13:37:48,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:48,451 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:48,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:48,546 INFO L225 Difference]: With dead ends: 30732 [2021-06-05 13:37:48,547 INFO L226 Difference]: Without dead ends: 29829 [2021-06-05 13:37:48,547 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 163.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:49,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29829 states. [2021-06-05 13:37:49,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29829 to 13203. [2021-06-05 13:37:49,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13203 states, 13202 states have (on average 5.330480230268141) internal successors, (70373), 13202 states have internal predecessors, (70373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:49,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13203 states to 13203 states and 70373 transitions. [2021-06-05 13:37:49,774 INFO L78 Accepts]: Start accepts. Automaton has 13203 states and 70373 transitions. Word has length 33 [2021-06-05 13:37:49,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:49,774 INFO L482 AbstractCegarLoop]: Abstraction has 13203 states and 70373 transitions. [2021-06-05 13:37:49,774 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:49,774 INFO L276 IsEmpty]: Start isEmpty. Operand 13203 states and 70373 transitions. [2021-06-05 13:37:49,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:49,801 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:49,801 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:49,801 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2021-06-05 13:37:49,801 INFO L430 AbstractCegarLoop]: === Iteration 182 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:49,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:49,801 INFO L82 PathProgramCache]: Analyzing trace with hash -275906499, now seen corresponding path program 175 times [2021-06-05 13:37:49,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:49,802 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295376612] [2021-06-05 13:37:49,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:49,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:49,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:49,938 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:49,938 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295376612] [2021-06-05 13:37:49,938 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295376612] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:49,938 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:49,938 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:49,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735726214] [2021-06-05 13:37:49,938 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:49,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:49,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:49,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:49,938 INFO L87 Difference]: Start difference. First operand 13203 states and 70373 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:50,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:50,171 INFO L93 Difference]: Finished difference Result 30840 states and 155349 transitions. [2021-06-05 13:37:50,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:50,171 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:50,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:50,265 INFO L225 Difference]: With dead ends: 30840 [2021-06-05 13:37:50,265 INFO L226 Difference]: Without dead ends: 30081 [2021-06-05 13:37:50,265 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 163.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:51,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30081 states. [2021-06-05 13:37:51,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30081 to 13383. [2021-06-05 13:37:51,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13383 states, 13382 states have (on average 5.320654610671051) internal successors, (71201), 13382 states have internal predecessors, (71201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:51,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13383 states to 13383 states and 71201 transitions. [2021-06-05 13:37:51,527 INFO L78 Accepts]: Start accepts. Automaton has 13383 states and 71201 transitions. Word has length 33 [2021-06-05 13:37:51,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:51,527 INFO L482 AbstractCegarLoop]: Abstraction has 13383 states and 71201 transitions. [2021-06-05 13:37:51,527 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:51,527 INFO L276 IsEmpty]: Start isEmpty. Operand 13383 states and 71201 transitions. [2021-06-05 13:37:51,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:51,554 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:51,554 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:51,554 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2021-06-05 13:37:51,554 INFO L430 AbstractCegarLoop]: === Iteration 183 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:51,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:51,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1122703461, now seen corresponding path program 176 times [2021-06-05 13:37:51,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:51,555 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467199207] [2021-06-05 13:37:51,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:51,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:51,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:51,691 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:51,691 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467199207] [2021-06-05 13:37:51,691 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467199207] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:51,691 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:51,691 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:51,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222802384] [2021-06-05 13:37:51,691 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:51,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:51,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:51,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:51,692 INFO L87 Difference]: Start difference. First operand 13383 states and 71201 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:51,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:51,962 INFO L93 Difference]: Finished difference Result 30832 states and 155201 transitions. [2021-06-05 13:37:51,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:51,962 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:51,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:52,056 INFO L225 Difference]: With dead ends: 30832 [2021-06-05 13:37:52,056 INFO L226 Difference]: Without dead ends: 29961 [2021-06-05 13:37:52,056 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 194.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:52,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29961 states. [2021-06-05 13:37:53,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29961 to 13263. [2021-06-05 13:37:53,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13263 states, 13262 states have (on average 5.327175388327553) internal successors, (70649), 13262 states have internal predecessors, (70649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:53,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13263 states to 13263 states and 70649 transitions. [2021-06-05 13:37:53,319 INFO L78 Accepts]: Start accepts. Automaton has 13263 states and 70649 transitions. Word has length 33 [2021-06-05 13:37:53,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:53,319 INFO L482 AbstractCegarLoop]: Abstraction has 13263 states and 70649 transitions. [2021-06-05 13:37:53,319 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:53,319 INFO L276 IsEmpty]: Start isEmpty. Operand 13263 states and 70649 transitions. [2021-06-05 13:37:53,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:53,348 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:53,349 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:53,349 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2021-06-05 13:37:53,349 INFO L430 AbstractCegarLoop]: === Iteration 184 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:53,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:53,349 INFO L82 PathProgramCache]: Analyzing trace with hash 838617149, now seen corresponding path program 177 times [2021-06-05 13:37:53,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:53,349 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803905285] [2021-06-05 13:37:53,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:53,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:53,504 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:53,504 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803905285] [2021-06-05 13:37:53,504 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803905285] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:53,504 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:53,504 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:53,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938795541] [2021-06-05 13:37:53,504 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:53,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:53,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:53,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:53,504 INFO L87 Difference]: Start difference. First operand 13263 states and 70649 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:53,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:53,754 INFO L93 Difference]: Finished difference Result 30856 states and 155345 transitions. [2021-06-05 13:37:53,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:53,755 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:53,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:53,851 INFO L225 Difference]: With dead ends: 30856 [2021-06-05 13:37:53,851 INFO L226 Difference]: Without dead ends: 30097 [2021-06-05 13:37:53,851 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 167.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:54,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30097 states. [2021-06-05 13:37:55,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30097 to 13387. [2021-06-05 13:37:55,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13387 states, 13386 states have (on average 5.3154788585088895) internal successors, (71153), 13386 states have internal predecessors, (71153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:55,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13387 states to 13387 states and 71153 transitions. [2021-06-05 13:37:55,127 INFO L78 Accepts]: Start accepts. Automaton has 13387 states and 71153 transitions. Word has length 33 [2021-06-05 13:37:55,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:55,127 INFO L482 AbstractCegarLoop]: Abstraction has 13387 states and 71153 transitions. [2021-06-05 13:37:55,128 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:55,128 INFO L276 IsEmpty]: Start isEmpty. Operand 13387 states and 71153 transitions. [2021-06-05 13:37:55,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:55,155 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:55,155 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:55,155 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2021-06-05 13:37:55,155 INFO L430 AbstractCegarLoop]: === Iteration 185 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:55,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:55,155 INFO L82 PathProgramCache]: Analyzing trace with hash -697982915, now seen corresponding path program 178 times [2021-06-05 13:37:55,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:55,155 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461119733] [2021-06-05 13:37:55,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:55,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:55,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:55,293 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:55,293 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461119733] [2021-06-05 13:37:55,293 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461119733] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:55,293 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:55,293 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:55,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760728405] [2021-06-05 13:37:55,294 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:55,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:55,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:55,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:55,294 INFO L87 Difference]: Start difference. First operand 13387 states and 71153 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:55,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:55,718 INFO L93 Difference]: Finished difference Result 30860 states and 155233 transitions. [2021-06-05 13:37:55,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:55,718 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:55,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:55,813 INFO L225 Difference]: With dead ends: 30860 [2021-06-05 13:37:55,813 INFO L226 Difference]: Without dead ends: 29973 [2021-06-05 13:37:55,814 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:56,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29973 states. [2021-06-05 13:37:56,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29973 to 13263. [2021-06-05 13:37:56,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13263 states, 13262 states have (on average 5.322651183833509) internal successors, (70589), 13262 states have internal predecessors, (70589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:56,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13263 states to 13263 states and 70589 transitions. [2021-06-05 13:37:56,885 INFO L78 Accepts]: Start accepts. Automaton has 13263 states and 70589 transitions. Word has length 33 [2021-06-05 13:37:56,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:56,885 INFO L482 AbstractCegarLoop]: Abstraction has 13263 states and 70589 transitions. [2021-06-05 13:37:56,885 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:56,885 INFO L276 IsEmpty]: Start isEmpty. Operand 13263 states and 70589 transitions. [2021-06-05 13:37:56,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:56,911 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:56,911 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:56,911 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2021-06-05 13:37:56,911 INFO L430 AbstractCegarLoop]: === Iteration 186 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:56,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:56,912 INFO L82 PathProgramCache]: Analyzing trace with hash -18130917, now seen corresponding path program 179 times [2021-06-05 13:37:56,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:56,912 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956812300] [2021-06-05 13:37:56,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:57,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:57,180 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:57,180 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956812300] [2021-06-05 13:37:57,180 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956812300] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:57,180 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:57,180 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:57,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945743247] [2021-06-05 13:37:57,180 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:57,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:57,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:57,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:57,181 INFO L87 Difference]: Start difference. First operand 13263 states and 70589 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:57,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:57,430 INFO L93 Difference]: Finished difference Result 30836 states and 155213 transitions. [2021-06-05 13:37:57,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:57,431 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:57,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:57,529 INFO L225 Difference]: With dead ends: 30836 [2021-06-05 13:37:57,530 INFO L226 Difference]: Without dead ends: 30085 [2021-06-05 13:37:57,530 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 295.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:37:58,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30085 states. [2021-06-05 13:37:58,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30085 to 13383. [2021-06-05 13:37:58,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13383 states, 13382 states have (on average 5.311687341204603) internal successors, (71081), 13382 states have internal predecessors, (71081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:58,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13383 states to 13383 states and 71081 transitions. [2021-06-05 13:37:58,821 INFO L78 Accepts]: Start accepts. Automaton has 13383 states and 71081 transitions. Word has length 33 [2021-06-05 13:37:58,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:58,821 INFO L482 AbstractCegarLoop]: Abstraction has 13383 states and 71081 transitions. [2021-06-05 13:37:58,821 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:58,821 INFO L276 IsEmpty]: Start isEmpty. Operand 13383 states and 71081 transitions. [2021-06-05 13:37:58,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:37:58,849 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:58,849 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:58,849 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2021-06-05 13:37:58,849 INFO L430 AbstractCegarLoop]: === Iteration 187 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:58,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:58,849 INFO L82 PathProgramCache]: Analyzing trace with hash -2021769603, now seen corresponding path program 180 times [2021-06-05 13:37:58,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:58,850 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549551623] [2021-06-05 13:37:58,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:58,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:59,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:59,012 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:59,012 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549551623] [2021-06-05 13:37:59,012 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549551623] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:59,012 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:59,012 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:37:59,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29779219] [2021-06-05 13:37:59,012 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:37:59,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:59,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:37:59,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:37:59,013 INFO L87 Difference]: Start difference. First operand 13383 states and 71081 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:59,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:59,279 INFO L93 Difference]: Finished difference Result 30848 states and 155133 transitions. [2021-06-05 13:37:59,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:37:59,280 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:37:59,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:59,374 INFO L225 Difference]: With dead ends: 30848 [2021-06-05 13:37:59,374 INFO L226 Difference]: Without dead ends: 29905 [2021-06-05 13:37:59,374 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 184.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:00,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29905 states. [2021-06-05 13:38:00,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29905 to 13203. [2021-06-05 13:38:00,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13203 states, 13202 states have (on average 5.328359339494016) internal successors, (70345), 13202 states have internal predecessors, (70345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:00,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13203 states to 13203 states and 70345 transitions. [2021-06-05 13:38:00,597 INFO L78 Accepts]: Start accepts. Automaton has 13203 states and 70345 transitions. Word has length 33 [2021-06-05 13:38:00,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:00,597 INFO L482 AbstractCegarLoop]: Abstraction has 13203 states and 70345 transitions. [2021-06-05 13:38:00,597 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:00,598 INFO L276 IsEmpty]: Start isEmpty. Operand 13203 states and 70345 transitions. [2021-06-05 13:38:00,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:00,624 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:00,624 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:00,624 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2021-06-05 13:38:00,624 INFO L430 AbstractCegarLoop]: === Iteration 188 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:00,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:00,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1022922907, now seen corresponding path program 181 times [2021-06-05 13:38:00,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:00,624 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80540174] [2021-06-05 13:38:00,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:00,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:00,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:00,758 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:00,758 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80540174] [2021-06-05 13:38:00,758 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80540174] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:00,758 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:00,758 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:00,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130122324] [2021-06-05 13:38:00,758 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:00,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:00,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:00,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:00,758 INFO L87 Difference]: Start difference. First operand 13203 states and 70345 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:01,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:01,001 INFO L93 Difference]: Finished difference Result 30780 states and 155065 transitions. [2021-06-05 13:38:01,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:01,001 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:01,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:01,095 INFO L225 Difference]: With dead ends: 30780 [2021-06-05 13:38:01,095 INFO L226 Difference]: Without dead ends: 30021 [2021-06-05 13:38:01,095 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 161.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:02,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30021 states. [2021-06-05 13:38:02,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30021 to 13371. [2021-06-05 13:38:02,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13371 states, 13370 states have (on average 5.319745699326851) internal successors, (71125), 13370 states have internal predecessors, (71125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:02,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13371 states to 13371 states and 71125 transitions. [2021-06-05 13:38:02,354 INFO L78 Accepts]: Start accepts. Automaton has 13371 states and 71125 transitions. Word has length 33 [2021-06-05 13:38:02,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:02,354 INFO L482 AbstractCegarLoop]: Abstraction has 13371 states and 71125 transitions. [2021-06-05 13:38:02,354 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:02,354 INFO L276 IsEmpty]: Start isEmpty. Operand 13371 states and 71125 transitions. [2021-06-05 13:38:02,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:02,381 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:02,381 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:02,381 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2021-06-05 13:38:02,381 INFO L430 AbstractCegarLoop]: === Iteration 189 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:02,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:02,382 INFO L82 PathProgramCache]: Analyzing trace with hash 226896027, now seen corresponding path program 182 times [2021-06-05 13:38:02,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:02,382 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993805043] [2021-06-05 13:38:02,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:02,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:02,515 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:02,515 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993805043] [2021-06-05 13:38:02,515 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993805043] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:02,515 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:02,515 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:02,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878158316] [2021-06-05 13:38:02,515 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:02,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:02,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:02,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:02,515 INFO L87 Difference]: Start difference. First operand 13371 states and 71125 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:02,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:02,772 INFO L93 Difference]: Finished difference Result 30756 states and 154861 transitions. [2021-06-05 13:38:02,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:02,772 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:02,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:02,867 INFO L225 Difference]: With dead ends: 30756 [2021-06-05 13:38:02,867 INFO L226 Difference]: Without dead ends: 29909 [2021-06-05 13:38:02,868 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 160.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:03,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29909 states. [2021-06-05 13:38:04,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29909 to 13259. [2021-06-05 13:38:04,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13259 states, 13258 states have (on average 5.325463870870418) internal successors, (70605), 13258 states have internal predecessors, (70605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:04,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13259 states to 13259 states and 70605 transitions. [2021-06-05 13:38:04,139 INFO L78 Accepts]: Start accepts. Automaton has 13259 states and 70605 transitions. Word has length 33 [2021-06-05 13:38:04,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:04,139 INFO L482 AbstractCegarLoop]: Abstraction has 13259 states and 70605 transitions. [2021-06-05 13:38:04,139 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:04,139 INFO L276 IsEmpty]: Start isEmpty. Operand 13259 states and 70605 transitions. [2021-06-05 13:38:04,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:04,166 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:04,167 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:04,167 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2021-06-05 13:38:04,167 INFO L430 AbstractCegarLoop]: === Iteration 190 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:04,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:04,167 INFO L82 PathProgramCache]: Analyzing trace with hash -20021507, now seen corresponding path program 183 times [2021-06-05 13:38:04,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:04,167 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471782818] [2021-06-05 13:38:04,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:04,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:04,308 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:04,308 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471782818] [2021-06-05 13:38:04,308 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471782818] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:04,308 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:04,308 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:04,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381701671] [2021-06-05 13:38:04,308 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:04,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:04,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:04,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:04,309 INFO L87 Difference]: Start difference. First operand 13259 states and 70605 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:04,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:04,538 INFO L93 Difference]: Finished difference Result 30820 states and 155165 transitions. [2021-06-05 13:38:04,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:04,538 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:04,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:04,633 INFO L225 Difference]: With dead ends: 30820 [2021-06-05 13:38:04,633 INFO L226 Difference]: Without dead ends: 30061 [2021-06-05 13:38:04,633 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:05,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30061 states. [2021-06-05 13:38:05,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30061 to 13383. [2021-06-05 13:38:05,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13383 states, 13382 states have (on average 5.313779704080107) internal successors, (71109), 13382 states have internal predecessors, (71109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:05,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13383 states to 13383 states and 71109 transitions. [2021-06-05 13:38:05,912 INFO L78 Accepts]: Start accepts. Automaton has 13383 states and 71109 transitions. Word has length 33 [2021-06-05 13:38:05,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:05,912 INFO L482 AbstractCegarLoop]: Abstraction has 13383 states and 71109 transitions. [2021-06-05 13:38:05,912 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:05,912 INFO L276 IsEmpty]: Start isEmpty. Operand 13383 states and 71109 transitions. [2021-06-05 13:38:05,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:05,939 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:05,940 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:05,940 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2021-06-05 13:38:05,940 INFO L430 AbstractCegarLoop]: === Iteration 191 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:05,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:05,940 INFO L82 PathProgramCache]: Analyzing trace with hash 760064155, now seen corresponding path program 184 times [2021-06-05 13:38:05,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:05,940 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311516027] [2021-06-05 13:38:05,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:05,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:06,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:06,076 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:06,076 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311516027] [2021-06-05 13:38:06,076 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311516027] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:06,076 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:06,076 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:06,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869678606] [2021-06-05 13:38:06,077 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:06,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:06,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:06,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:06,077 INFO L87 Difference]: Start difference. First operand 13383 states and 71109 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:06,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:06,571 INFO L93 Difference]: Finished difference Result 30824 states and 155053 transitions. [2021-06-05 13:38:06,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:06,571 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:06,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:06,669 INFO L225 Difference]: With dead ends: 30824 [2021-06-05 13:38:06,669 INFO L226 Difference]: Without dead ends: 29937 [2021-06-05 13:38:06,669 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 162.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:07,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29937 states. [2021-06-05 13:38:07,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29937 to 13259. [2021-06-05 13:38:07,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13259 states, 13258 states have (on average 5.321240006034093) internal successors, (70549), 13258 states have internal predecessors, (70549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:07,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13259 states to 13259 states and 70549 transitions. [2021-06-05 13:38:07,740 INFO L78 Accepts]: Start accepts. Automaton has 13259 states and 70549 transitions. Word has length 33 [2021-06-05 13:38:07,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:07,740 INFO L482 AbstractCegarLoop]: Abstraction has 13259 states and 70549 transitions. [2021-06-05 13:38:07,740 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:07,740 INFO L276 IsEmpty]: Start isEmpty. Operand 13259 states and 70549 transitions. [2021-06-05 13:38:07,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:07,767 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:07,767 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:07,767 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2021-06-05 13:38:07,767 INFO L430 AbstractCegarLoop]: === Iteration 192 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:07,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:07,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1022984347, now seen corresponding path program 185 times [2021-06-05 13:38:07,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:07,768 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217353710] [2021-06-05 13:38:07,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:07,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:07,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:07,923 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:07,923 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217353710] [2021-06-05 13:38:07,923 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217353710] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:07,923 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:07,923 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:07,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346964184] [2021-06-05 13:38:07,924 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:07,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:07,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:07,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:07,924 INFO L87 Difference]: Start difference. First operand 13259 states and 70549 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:08,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:08,279 INFO L93 Difference]: Finished difference Result 30760 states and 154873 transitions. [2021-06-05 13:38:08,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:08,279 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:08,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:08,375 INFO L225 Difference]: With dead ends: 30760 [2021-06-05 13:38:08,375 INFO L226 Difference]: Without dead ends: 30025 [2021-06-05 13:38:08,375 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 177.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:09,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30025 states. [2021-06-05 13:38:09,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30025 to 13371. [2021-06-05 13:38:09,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13371 states, 13370 states have (on average 5.311368735976066) internal successors, (71013), 13370 states have internal predecessors, (71013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:09,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13371 states to 13371 states and 71013 transitions. [2021-06-05 13:38:09,669 INFO L78 Accepts]: Start accepts. Automaton has 13371 states and 71013 transitions. Word has length 33 [2021-06-05 13:38:09,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:09,669 INFO L482 AbstractCegarLoop]: Abstraction has 13371 states and 71013 transitions. [2021-06-05 13:38:09,669 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:09,669 INFO L276 IsEmpty]: Start isEmpty. Operand 13371 states and 71013 transitions. [2021-06-05 13:38:09,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:09,698 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:09,698 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:09,698 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2021-06-05 13:38:09,698 INFO L430 AbstractCegarLoop]: === Iteration 193 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:09,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:09,699 INFO L82 PathProgramCache]: Analyzing trace with hash -287596675, now seen corresponding path program 186 times [2021-06-05 13:38:09,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:09,699 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912625326] [2021-06-05 13:38:09,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:09,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:09,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:09,856 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:09,856 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912625326] [2021-06-05 13:38:09,856 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912625326] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:09,856 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:09,856 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:09,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67431708] [2021-06-05 13:38:09,856 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:09,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:09,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:09,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:09,857 INFO L87 Difference]: Start difference. First operand 13371 states and 71013 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:10,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:10,091 INFO L93 Difference]: Finished difference Result 30788 states and 154865 transitions. [2021-06-05 13:38:10,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:10,091 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:10,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:10,184 INFO L225 Difference]: With dead ends: 30788 [2021-06-05 13:38:10,184 INFO L226 Difference]: Without dead ends: 29857 [2021-06-05 13:38:10,185 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 176.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:10,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29857 states. [2021-06-05 13:38:11,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29857 to 13203. [2021-06-05 13:38:11,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13203 states, 13202 states have (on average 5.326238448719891) internal successors, (70317), 13202 states have internal predecessors, (70317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:11,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13203 states to 13203 states and 70317 transitions. [2021-06-05 13:38:11,450 INFO L78 Accepts]: Start accepts. Automaton has 13203 states and 70317 transitions. Word has length 33 [2021-06-05 13:38:11,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:11,450 INFO L482 AbstractCegarLoop]: Abstraction has 13203 states and 70317 transitions. [2021-06-05 13:38:11,450 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:11,450 INFO L276 IsEmpty]: Start isEmpty. Operand 13203 states and 70317 transitions. [2021-06-05 13:38:11,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:11,476 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:11,476 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:11,476 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2021-06-05 13:38:11,476 INFO L430 AbstractCegarLoop]: === Iteration 194 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:11,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:11,477 INFO L82 PathProgramCache]: Analyzing trace with hash -806901511, now seen corresponding path program 187 times [2021-06-05 13:38:11,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:11,477 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712896279] [2021-06-05 13:38:11,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:11,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:11,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:11,611 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:11,611 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712896279] [2021-06-05 13:38:11,611 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712896279] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:11,611 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:11,611 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:11,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270392335] [2021-06-05 13:38:11,611 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:11,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:11,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:11,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:11,612 INFO L87 Difference]: Start difference. First operand 13203 states and 70317 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:11,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:11,853 INFO L93 Difference]: Finished difference Result 30752 states and 154937 transitions. [2021-06-05 13:38:11,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:11,853 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:11,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:11,947 INFO L225 Difference]: With dead ends: 30752 [2021-06-05 13:38:11,948 INFO L226 Difference]: Without dead ends: 30001 [2021-06-05 13:38:11,948 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 161.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:12,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30001 states. [2021-06-05 13:38:13,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30001 to 13371. [2021-06-05 13:38:13,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13371 states, 13370 states have (on average 5.317651458489155) internal successors, (71097), 13370 states have internal predecessors, (71097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:13,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13371 states to 13371 states and 71097 transitions. [2021-06-05 13:38:13,221 INFO L78 Accepts]: Start accepts. Automaton has 13371 states and 71097 transitions. Word has length 33 [2021-06-05 13:38:13,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:13,221 INFO L482 AbstractCegarLoop]: Abstraction has 13371 states and 71097 transitions. [2021-06-05 13:38:13,221 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:13,221 INFO L276 IsEmpty]: Start isEmpty. Operand 13371 states and 71097 transitions. [2021-06-05 13:38:13,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:13,250 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:13,250 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:13,250 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2021-06-05 13:38:13,250 INFO L430 AbstractCegarLoop]: === Iteration 195 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:13,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:13,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1287803557, now seen corresponding path program 188 times [2021-06-05 13:38:13,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:13,250 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231118549] [2021-06-05 13:38:13,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:13,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:13,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:13,419 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:13,419 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231118549] [2021-06-05 13:38:13,420 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231118549] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:13,420 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:13,420 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:13,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784862294] [2021-06-05 13:38:13,420 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:13,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:13,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:13,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:13,420 INFO L87 Difference]: Start difference. First operand 13371 states and 71097 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:13,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:13,680 INFO L93 Difference]: Finished difference Result 30736 states and 154761 transitions. [2021-06-05 13:38:13,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:13,681 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:13,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:13,779 INFO L225 Difference]: With dead ends: 30736 [2021-06-05 13:38:13,779 INFO L226 Difference]: Without dead ends: 29889 [2021-06-05 13:38:13,779 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 184.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:14,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29889 states. [2021-06-05 13:38:14,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29889 to 13259. [2021-06-05 13:38:14,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13259 states, 13258 states have (on average 5.323351938452255) internal successors, (70577), 13258 states have internal predecessors, (70577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:15,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13259 states to 13259 states and 70577 transitions. [2021-06-05 13:38:15,035 INFO L78 Accepts]: Start accepts. Automaton has 13259 states and 70577 transitions. Word has length 33 [2021-06-05 13:38:15,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:15,035 INFO L482 AbstractCegarLoop]: Abstraction has 13259 states and 70577 transitions. [2021-06-05 13:38:15,035 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:15,035 INFO L276 IsEmpty]: Start isEmpty. Operand 13259 states and 70577 transitions. [2021-06-05 13:38:15,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:15,062 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:15,062 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:15,063 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2021-06-05 13:38:15,063 INFO L430 AbstractCegarLoop]: === Iteration 196 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:15,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:15,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1849845925, now seen corresponding path program 189 times [2021-06-05 13:38:15,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:15,063 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76627852] [2021-06-05 13:38:15,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:15,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:15,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:15,198 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:15,198 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76627852] [2021-06-05 13:38:15,198 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76627852] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:15,198 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:15,198 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:15,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083906070] [2021-06-05 13:38:15,198 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:15,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:15,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:15,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:15,199 INFO L87 Difference]: Start difference. First operand 13259 states and 70577 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:15,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:15,434 INFO L93 Difference]: Finished difference Result 30788 states and 155021 transitions. [2021-06-05 13:38:15,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:15,435 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:15,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:15,532 INFO L225 Difference]: With dead ends: 30788 [2021-06-05 13:38:15,532 INFO L226 Difference]: Without dead ends: 30037 [2021-06-05 13:38:15,532 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 162.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:16,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30037 states. [2021-06-05 13:38:16,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30037 to 13379. [2021-06-05 13:38:16,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13379 states, 13378 states have (on average 5.312378531918075) internal successors, (71069), 13378 states have internal predecessors, (71069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:16,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13379 states to 13379 states and 71069 transitions. [2021-06-05 13:38:16,807 INFO L78 Accepts]: Start accepts. Automaton has 13379 states and 71069 transitions. Word has length 33 [2021-06-05 13:38:16,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:16,807 INFO L482 AbstractCegarLoop]: Abstraction has 13379 states and 71069 transitions. [2021-06-05 13:38:16,807 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:16,807 INFO L276 IsEmpty]: Start isEmpty. Operand 13379 states and 71069 transitions. [2021-06-05 13:38:16,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:16,835 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:16,835 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:16,835 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2021-06-05 13:38:16,835 INFO L430 AbstractCegarLoop]: === Iteration 197 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:16,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:16,836 INFO L82 PathProgramCache]: Analyzing trace with hash -1536798885, now seen corresponding path program 190 times [2021-06-05 13:38:16,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:16,836 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968987709] [2021-06-05 13:38:16,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:16,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:16,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:16,970 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:16,970 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968987709] [2021-06-05 13:38:16,970 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968987709] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:16,970 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:16,970 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:16,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671196748] [2021-06-05 13:38:16,970 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:16,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:16,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:16,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:16,971 INFO L87 Difference]: Start difference. First operand 13379 states and 71069 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:17,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:17,416 INFO L93 Difference]: Finished difference Result 30800 states and 154941 transitions. [2021-06-05 13:38:17,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:17,417 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:17,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:17,519 INFO L225 Difference]: With dead ends: 30800 [2021-06-05 13:38:17,519 INFO L226 Difference]: Without dead ends: 29917 [2021-06-05 13:38:17,519 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 161.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:18,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29917 states. [2021-06-05 13:38:18,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29917 to 13259. [2021-06-05 13:38:18,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13259 states, 13258 states have (on average 5.31912807361593) internal successors, (70521), 13258 states have internal predecessors, (70521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:18,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13259 states to 13259 states and 70521 transitions. [2021-06-05 13:38:18,591 INFO L78 Accepts]: Start accepts. Automaton has 13259 states and 70521 transitions. Word has length 33 [2021-06-05 13:38:18,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:18,591 INFO L482 AbstractCegarLoop]: Abstraction has 13259 states and 70521 transitions. [2021-06-05 13:38:18,591 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:18,591 INFO L276 IsEmpty]: Start isEmpty. Operand 13259 states and 70521 transitions. [2021-06-05 13:38:18,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:18,619 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:18,619 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:18,619 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2021-06-05 13:38:18,619 INFO L430 AbstractCegarLoop]: === Iteration 198 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:18,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:18,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1655735101, now seen corresponding path program 191 times [2021-06-05 13:38:18,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:18,620 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544042594] [2021-06-05 13:38:18,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:18,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:18,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:18,768 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:18,768 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544042594] [2021-06-05 13:38:18,768 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544042594] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:18,768 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:18,768 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:18,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089432884] [2021-06-05 13:38:18,768 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:18,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:18,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:18,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:18,769 INFO L87 Difference]: Start difference. First operand 13259 states and 70521 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:19,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:19,160 INFO L93 Difference]: Finished difference Result 30748 states and 154801 transitions. [2021-06-05 13:38:19,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:19,160 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:19,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:19,260 INFO L225 Difference]: With dead ends: 30748 [2021-06-05 13:38:19,260 INFO L226 Difference]: Without dead ends: 30013 [2021-06-05 13:38:19,261 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 175.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:19,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30013 states. [2021-06-05 13:38:20,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30013 to 13371. [2021-06-05 13:38:20,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13371 states, 13370 states have (on average 5.30927449513837) internal successors, (70985), 13370 states have internal predecessors, (70985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:20,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13371 states to 13371 states and 70985 transitions. [2021-06-05 13:38:20,575 INFO L78 Accepts]: Start accepts. Automaton has 13371 states and 70985 transitions. Word has length 33 [2021-06-05 13:38:20,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:20,575 INFO L482 AbstractCegarLoop]: Abstraction has 13371 states and 70985 transitions. [2021-06-05 13:38:20,575 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:20,575 INFO L276 IsEmpty]: Start isEmpty. Operand 13371 states and 70985 transitions. [2021-06-05 13:38:20,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:20,607 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:20,607 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:20,607 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2021-06-05 13:38:20,607 INFO L430 AbstractCegarLoop]: === Iteration 199 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:20,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:20,608 INFO L82 PathProgramCache]: Analyzing trace with hash -317570917, now seen corresponding path program 192 times [2021-06-05 13:38:20,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:20,608 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995379814] [2021-06-05 13:38:20,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:20,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:20,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:20,763 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:20,763 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995379814] [2021-06-05 13:38:20,763 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995379814] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:20,763 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:20,763 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:20,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673708191] [2021-06-05 13:38:20,763 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:20,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:20,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:20,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:20,764 INFO L87 Difference]: Start difference. First operand 13371 states and 70985 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:20,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:20,990 INFO L93 Difference]: Finished difference Result 30776 states and 154793 transitions. [2021-06-05 13:38:20,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:20,990 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:20,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:21,085 INFO L225 Difference]: With dead ends: 30776 [2021-06-05 13:38:21,086 INFO L226 Difference]: Without dead ends: 29817 [2021-06-05 13:38:21,086 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 177.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:21,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29817 states. [2021-06-05 13:38:22,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29817 to 13175. [2021-06-05 13:38:22,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13175 states, 13174 states have (on average 5.329816304842872) internal successors, (70215), 13174 states have internal predecessors, (70215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:22,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13175 states to 13175 states and 70215 transitions. [2021-06-05 13:38:22,346 INFO L78 Accepts]: Start accepts. Automaton has 13175 states and 70215 transitions. Word has length 33 [2021-06-05 13:38:22,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:22,346 INFO L482 AbstractCegarLoop]: Abstraction has 13175 states and 70215 transitions. [2021-06-05 13:38:22,346 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:22,346 INFO L276 IsEmpty]: Start isEmpty. Operand 13175 states and 70215 transitions. [2021-06-05 13:38:22,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:22,373 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:22,373 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:22,373 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2021-06-05 13:38:22,373 INFO L430 AbstractCegarLoop]: === Iteration 200 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:22,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:22,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1430152825, now seen corresponding path program 193 times [2021-06-05 13:38:22,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:22,373 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206169769] [2021-06-05 13:38:22,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:22,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:22,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:22,574 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:22,575 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206169769] [2021-06-05 13:38:22,575 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206169769] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:22,575 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:22,575 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:22,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927531276] [2021-06-05 13:38:22,575 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:22,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:22,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:22,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:22,575 INFO L87 Difference]: Start difference. First operand 13175 states and 70215 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:22,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:22,800 INFO L93 Difference]: Finished difference Result 31530 states and 158761 transitions. [2021-06-05 13:38:22,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:22,801 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:22,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:22,897 INFO L225 Difference]: With dead ends: 31530 [2021-06-05 13:38:22,897 INFO L226 Difference]: Without dead ends: 30771 [2021-06-05 13:38:22,898 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 216.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:23,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30771 states. [2021-06-05 13:38:24,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30771 to 13419. [2021-06-05 13:38:24,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13419 states, 13418 states have (on average 5.324116857952005) internal successors, (71439), 13418 states have internal predecessors, (71439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:24,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13419 states to 13419 states and 71439 transitions. [2021-06-05 13:38:24,189 INFO L78 Accepts]: Start accepts. Automaton has 13419 states and 71439 transitions. Word has length 33 [2021-06-05 13:38:24,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:24,189 INFO L482 AbstractCegarLoop]: Abstraction has 13419 states and 71439 transitions. [2021-06-05 13:38:24,189 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:24,189 INFO L276 IsEmpty]: Start isEmpty. Operand 13419 states and 71439 transitions. [2021-06-05 13:38:24,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:24,216 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:24,216 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:24,216 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2021-06-05 13:38:24,216 INFO L430 AbstractCegarLoop]: === Iteration 201 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:24,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:24,217 INFO L82 PathProgramCache]: Analyzing trace with hash 634125945, now seen corresponding path program 194 times [2021-06-05 13:38:24,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:24,217 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019604606] [2021-06-05 13:38:24,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:24,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:24,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:24,363 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:24,363 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019604606] [2021-06-05 13:38:24,363 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019604606] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:24,363 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:24,363 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:24,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576686674] [2021-06-05 13:38:24,364 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:24,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:24,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:24,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:24,364 INFO L87 Difference]: Start difference. First operand 13419 states and 71439 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:24,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:24,597 INFO L93 Difference]: Finished difference Result 31506 states and 158557 transitions. [2021-06-05 13:38:24,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:24,597 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:24,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:24,695 INFO L225 Difference]: With dead ends: 31506 [2021-06-05 13:38:24,695 INFO L226 Difference]: Without dead ends: 30659 [2021-06-05 13:38:24,696 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 173.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:25,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30659 states. [2021-06-05 13:38:26,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30659 to 13307. [2021-06-05 13:38:26,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13307 states, 13306 states have (on average 5.329851194949647) internal successors, (70919), 13306 states have internal predecessors, (70919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:26,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70919 transitions. [2021-06-05 13:38:26,279 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70919 transitions. Word has length 33 [2021-06-05 13:38:26,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:26,279 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70919 transitions. [2021-06-05 13:38:26,280 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:26,280 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70919 transitions. [2021-06-05 13:38:26,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:26,313 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:26,313 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:26,313 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2021-06-05 13:38:26,313 INFO L430 AbstractCegarLoop]: === Iteration 202 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:26,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:26,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1004176859, now seen corresponding path program 195 times [2021-06-05 13:38:26,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:26,314 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124928639] [2021-06-05 13:38:26,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:26,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:26,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:26,516 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:26,516 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124928639] [2021-06-05 13:38:26,516 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124928639] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:26,516 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:26,516 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:26,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9397909] [2021-06-05 13:38:26,516 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:26,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:26,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:26,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:26,516 INFO L87 Difference]: Start difference. First operand 13307 states and 70919 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:26,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:26,744 INFO L93 Difference]: Finished difference Result 31765 states and 159764 transitions. [2021-06-05 13:38:26,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:26,744 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:26,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:26,844 INFO L225 Difference]: With dead ends: 31765 [2021-06-05 13:38:26,844 INFO L226 Difference]: Without dead ends: 31006 [2021-06-05 13:38:26,844 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 208.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:27,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31006 states. [2021-06-05 13:38:28,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31006 to 13495. [2021-06-05 13:38:28,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13495 states, 13494 states have (on average 5.3166592559656145) internal successors, (71743), 13494 states have internal predecessors, (71743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:28,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13495 states to 13495 states and 71743 transitions. [2021-06-05 13:38:28,152 INFO L78 Accepts]: Start accepts. Automaton has 13495 states and 71743 transitions. Word has length 33 [2021-06-05 13:38:28,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:28,153 INFO L482 AbstractCegarLoop]: Abstraction has 13495 states and 71743 transitions. [2021-06-05 13:38:28,153 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:28,153 INFO L276 IsEmpty]: Start isEmpty. Operand 13495 states and 71743 transitions. [2021-06-05 13:38:28,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:28,180 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:28,180 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:28,180 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2021-06-05 13:38:28,180 INFO L430 AbstractCegarLoop]: === Iteration 203 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:28,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:28,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1433878137, now seen corresponding path program 196 times [2021-06-05 13:38:28,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:28,180 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702349269] [2021-06-05 13:38:28,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:28,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:28,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:28,363 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:28,363 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702349269] [2021-06-05 13:38:28,363 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702349269] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:28,363 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:28,363 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:28,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538085984] [2021-06-05 13:38:28,364 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:28,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:28,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:28,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:28,364 INFO L87 Difference]: Start difference. First operand 13495 states and 71743 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:28,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:28,749 INFO L93 Difference]: Finished difference Result 31900 states and 160235 transitions. [2021-06-05 13:38:28,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:28,749 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:28,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:28,847 INFO L225 Difference]: With dead ends: 31900 [2021-06-05 13:38:28,847 INFO L226 Difference]: Without dead ends: 30818 [2021-06-05 13:38:28,847 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 190.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:29,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30818 states. [2021-06-05 13:38:29,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30818 to 13307. [2021-06-05 13:38:29,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13307 states, 13306 states have (on average 5.32323763715617) internal successors, (70831), 13306 states have internal predecessors, (70831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:29,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70831 transitions. [2021-06-05 13:38:29,938 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70831 transitions. Word has length 33 [2021-06-05 13:38:29,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:29,938 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70831 transitions. [2021-06-05 13:38:29,938 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:29,938 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70831 transitions. [2021-06-05 13:38:29,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:29,965 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:29,965 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:29,965 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2021-06-05 13:38:29,965 INFO L430 AbstractCegarLoop]: === Iteration 204 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:29,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:29,965 INFO L82 PathProgramCache]: Analyzing trace with hash 2067084921, now seen corresponding path program 197 times [2021-06-05 13:38:29,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:29,965 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103050321] [2021-06-05 13:38:29,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:29,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:30,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:30,260 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:30,260 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103050321] [2021-06-05 13:38:30,260 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103050321] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:30,260 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:30,260 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:30,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839088726] [2021-06-05 13:38:30,260 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:30,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:30,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:30,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:30,260 INFO L87 Difference]: Start difference. First operand 13307 states and 70831 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:30,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:30,494 INFO L93 Difference]: Finished difference Result 31705 states and 159440 transitions. [2021-06-05 13:38:30,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:30,494 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:30,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:30,591 INFO L225 Difference]: With dead ends: 31705 [2021-06-05 13:38:30,591 INFO L226 Difference]: Without dead ends: 30970 [2021-06-05 13:38:30,592 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 184.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:31,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30970 states. [2021-06-05 13:38:31,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30970 to 13483. [2021-06-05 13:38:31,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13483 states, 13482 states have (on average 5.311897344607625) internal successors, (71615), 13482 states have internal predecessors, (71615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:31,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13483 states to 13483 states and 71615 transitions. [2021-06-05 13:38:31,827 INFO L78 Accepts]: Start accepts. Automaton has 13483 states and 71615 transitions. Word has length 33 [2021-06-05 13:38:31,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:31,827 INFO L482 AbstractCegarLoop]: Abstraction has 13483 states and 71615 transitions. [2021-06-05 13:38:31,827 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:31,828 INFO L276 IsEmpty]: Start isEmpty. Operand 13483 states and 71615 transitions. [2021-06-05 13:38:31,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:31,854 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:31,854 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:31,854 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2021-06-05 13:38:31,854 INFO L430 AbstractCegarLoop]: === Iteration 205 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:31,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:31,855 INFO L82 PathProgramCache]: Analyzing trace with hash 2142619227, now seen corresponding path program 198 times [2021-06-05 13:38:31,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:31,855 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684201570] [2021-06-05 13:38:31,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:31,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:32,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:32,025 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:32,025 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684201570] [2021-06-05 13:38:32,025 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684201570] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:32,025 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:32,025 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:32,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927488504] [2021-06-05 13:38:32,025 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:32,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:32,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:32,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:32,025 INFO L87 Difference]: Start difference. First operand 13483 states and 71615 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:32,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:32,252 INFO L93 Difference]: Finished difference Result 31864 states and 160015 transitions. [2021-06-05 13:38:32,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:32,253 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:32,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:32,349 INFO L225 Difference]: With dead ends: 31864 [2021-06-05 13:38:32,349 INFO L226 Difference]: Without dead ends: 30706 [2021-06-05 13:38:32,349 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 172.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:33,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30706 states. [2021-06-05 13:38:33,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30706 to 13219. [2021-06-05 13:38:33,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13219 states, 13218 states have (on average 5.329021031926161) internal successors, (70439), 13218 states have internal predecessors, (70439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:33,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13219 states to 13219 states and 70439 transitions. [2021-06-05 13:38:33,586 INFO L78 Accepts]: Start accepts. Automaton has 13219 states and 70439 transitions. Word has length 33 [2021-06-05 13:38:33,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:33,586 INFO L482 AbstractCegarLoop]: Abstraction has 13219 states and 70439 transitions. [2021-06-05 13:38:33,586 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:33,586 INFO L276 IsEmpty]: Start isEmpty. Operand 13219 states and 70439 transitions. [2021-06-05 13:38:33,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:33,614 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:33,614 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:33,614 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2021-06-05 13:38:33,615 INFO L430 AbstractCegarLoop]: === Iteration 206 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:33,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:33,615 INFO L82 PathProgramCache]: Analyzing trace with hash -715624101, now seen corresponding path program 199 times [2021-06-05 13:38:33,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:33,615 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563018295] [2021-06-05 13:38:33,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:33,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:33,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:33,750 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:33,750 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563018295] [2021-06-05 13:38:33,750 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563018295] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:33,750 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:33,750 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:33,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366134305] [2021-06-05 13:38:33,751 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:33,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:33,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:33,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:33,751 INFO L87 Difference]: Start difference. First operand 13219 states and 70439 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:33,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:33,982 INFO L93 Difference]: Finished difference Result 31239 states and 157318 transitions. [2021-06-05 13:38:33,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:33,982 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:33,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:34,081 INFO L225 Difference]: With dead ends: 31239 [2021-06-05 13:38:34,081 INFO L226 Difference]: Without dead ends: 30480 [2021-06-05 13:38:34,081 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 162.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:35,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30480 states. [2021-06-05 13:38:35,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30480 to 13387. [2021-06-05 13:38:35,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13387 states, 13386 states have (on average 5.320409382937397) internal successors, (71219), 13386 states have internal predecessors, (71219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:35,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13387 states to 13387 states and 71219 transitions. [2021-06-05 13:38:35,432 INFO L78 Accepts]: Start accepts. Automaton has 13387 states and 71219 transitions. Word has length 33 [2021-06-05 13:38:35,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:35,432 INFO L482 AbstractCegarLoop]: Abstraction has 13387 states and 71219 transitions. [2021-06-05 13:38:35,432 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:35,432 INFO L276 IsEmpty]: Start isEmpty. Operand 13387 states and 71219 transitions. [2021-06-05 13:38:35,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:35,460 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:35,460 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:35,460 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2021-06-05 13:38:35,460 INFO L430 AbstractCegarLoop]: === Iteration 207 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:35,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:35,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1511650981, now seen corresponding path program 200 times [2021-06-05 13:38:35,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:35,460 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470625100] [2021-06-05 13:38:35,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:35,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:35,622 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:35,622 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470625100] [2021-06-05 13:38:35,622 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470625100] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:35,622 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:35,622 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:35,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111741150] [2021-06-05 13:38:35,622 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:35,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:35,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:35,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:35,622 INFO L87 Difference]: Start difference. First operand 13387 states and 71219 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:35,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:35,879 INFO L93 Difference]: Finished difference Result 31215 states and 157114 transitions. [2021-06-05 13:38:35,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:35,880 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:35,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:35,976 INFO L225 Difference]: With dead ends: 31215 [2021-06-05 13:38:35,976 INFO L226 Difference]: Without dead ends: 30368 [2021-06-05 13:38:35,976 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 182.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:37,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30368 states. [2021-06-05 13:38:37,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30368 to 13275. [2021-06-05 13:38:37,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13275 states, 13274 states have (on average 5.3261262618653005) internal successors, (70699), 13274 states have internal predecessors, (70699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:37,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13275 states to 13275 states and 70699 transitions. [2021-06-05 13:38:37,380 INFO L78 Accepts]: Start accepts. Automaton has 13275 states and 70699 transitions. Word has length 33 [2021-06-05 13:38:37,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:37,380 INFO L482 AbstractCegarLoop]: Abstraction has 13275 states and 70699 transitions. [2021-06-05 13:38:37,380 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:37,380 INFO L276 IsEmpty]: Start isEmpty. Operand 13275 states and 70699 transitions. [2021-06-05 13:38:37,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:37,407 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:37,407 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:37,407 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2021-06-05 13:38:37,407 INFO L430 AbstractCegarLoop]: === Iteration 208 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:37,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:37,407 INFO L82 PathProgramCache]: Analyzing trace with hash -1760135973, now seen corresponding path program 201 times [2021-06-05 13:38:37,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:37,407 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522650837] [2021-06-05 13:38:37,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:37,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:37,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:37,566 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:37,566 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522650837] [2021-06-05 13:38:37,566 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522650837] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:37,566 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:37,566 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:37,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760571589] [2021-06-05 13:38:37,566 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:37,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:37,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:37,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:37,567 INFO L87 Difference]: Start difference. First operand 13275 states and 70699 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:37,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:37,790 INFO L93 Difference]: Finished difference Result 31279 states and 157418 transitions. [2021-06-05 13:38:37,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:37,790 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:37,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:38,128 INFO L225 Difference]: With dead ends: 31279 [2021-06-05 13:38:38,129 INFO L226 Difference]: Without dead ends: 30520 [2021-06-05 13:38:38,129 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 182.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:38,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30520 states. [2021-06-05 13:38:39,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30520 to 13399. [2021-06-05 13:38:39,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13399 states, 13398 states have (on average 5.314449917898194) internal successors, (71203), 13398 states have internal predecessors, (71203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:39,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13399 states to 13399 states and 71203 transitions. [2021-06-05 13:38:39,185 INFO L78 Accepts]: Start accepts. Automaton has 13399 states and 71203 transitions. Word has length 33 [2021-06-05 13:38:39,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:39,185 INFO L482 AbstractCegarLoop]: Abstraction has 13399 states and 71203 transitions. [2021-06-05 13:38:39,185 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:39,185 INFO L276 IsEmpty]: Start isEmpty. Operand 13399 states and 71203 transitions. [2021-06-05 13:38:39,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:39,212 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:39,212 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:39,212 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2021-06-05 13:38:39,212 INFO L430 AbstractCegarLoop]: === Iteration 209 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:39,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:39,212 INFO L82 PathProgramCache]: Analyzing trace with hash -980050311, now seen corresponding path program 202 times [2021-06-05 13:38:39,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:39,213 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391247727] [2021-06-05 13:38:39,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:39,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:39,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:39,350 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:39,350 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391247727] [2021-06-05 13:38:39,350 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391247727] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:39,350 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:39,350 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:39,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749533288] [2021-06-05 13:38:39,350 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:39,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:39,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:39,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:39,350 INFO L87 Difference]: Start difference. First operand 13399 states and 71203 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:39,657 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 29 [2021-06-05 13:38:39,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:39,770 INFO L93 Difference]: Finished difference Result 31283 states and 157306 transitions. [2021-06-05 13:38:39,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:39,770 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:39,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:39,872 INFO L225 Difference]: With dead ends: 31283 [2021-06-05 13:38:39,872 INFO L226 Difference]: Without dead ends: 30396 [2021-06-05 13:38:39,872 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 350.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:40,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30396 states. [2021-06-05 13:38:40,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30396 to 13275. [2021-06-05 13:38:40,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13275 states, 13274 states have (on average 5.3219074883230375) internal successors, (70643), 13274 states have internal predecessors, (70643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:41,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13275 states to 13275 states and 70643 transitions. [2021-06-05 13:38:41,162 INFO L78 Accepts]: Start accepts. Automaton has 13275 states and 70643 transitions. Word has length 33 [2021-06-05 13:38:41,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:41,162 INFO L482 AbstractCegarLoop]: Abstraction has 13275 states and 70643 transitions. [2021-06-05 13:38:41,162 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:41,162 INFO L276 IsEmpty]: Start isEmpty. Operand 13275 states and 70643 transitions. [2021-06-05 13:38:41,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:41,198 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:41,198 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:41,198 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2021-06-05 13:38:41,198 INFO L430 AbstractCegarLoop]: === Iteration 210 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:41,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:41,198 INFO L82 PathProgramCache]: Analyzing trace with hash -717130119, now seen corresponding path program 203 times [2021-06-05 13:38:41,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:41,199 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490185726] [2021-06-05 13:38:41,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:41,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:41,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:41,348 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:41,348 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490185726] [2021-06-05 13:38:41,348 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490185726] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:41,348 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:41,348 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:41,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834785619] [2021-06-05 13:38:41,348 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:41,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:41,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:41,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:41,348 INFO L87 Difference]: Start difference. First operand 13275 states and 70643 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:41,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:41,593 INFO L93 Difference]: Finished difference Result 31219 states and 157126 transitions. [2021-06-05 13:38:41,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:41,594 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:41,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:41,691 INFO L225 Difference]: With dead ends: 31219 [2021-06-05 13:38:41,692 INFO L226 Difference]: Without dead ends: 30484 [2021-06-05 13:38:41,692 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 176.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:42,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30484 states. [2021-06-05 13:38:42,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30484 to 13387. [2021-06-05 13:38:42,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13387 states, 13386 states have (on average 5.312042432392051) internal successors, (71107), 13386 states have internal predecessors, (71107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:42,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13387 states to 13387 states and 71107 transitions. [2021-06-05 13:38:42,960 INFO L78 Accepts]: Start accepts. Automaton has 13387 states and 71107 transitions. Word has length 33 [2021-06-05 13:38:42,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:42,960 INFO L482 AbstractCegarLoop]: Abstraction has 13387 states and 71107 transitions. [2021-06-05 13:38:42,960 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:42,960 INFO L276 IsEmpty]: Start isEmpty. Operand 13387 states and 71107 transitions. [2021-06-05 13:38:42,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:42,987 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:42,987 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:42,987 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2021-06-05 13:38:42,987 INFO L430 AbstractCegarLoop]: === Iteration 211 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:42,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:42,987 INFO L82 PathProgramCache]: Analyzing trace with hash -2027711141, now seen corresponding path program 204 times [2021-06-05 13:38:42,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:42,988 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237160805] [2021-06-05 13:38:42,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:42,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:43,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:43,136 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:43,136 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237160805] [2021-06-05 13:38:43,136 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237160805] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:43,136 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:43,136 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:43,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155907979] [2021-06-05 13:38:43,136 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:43,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:43,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:43,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:43,136 INFO L87 Difference]: Start difference. First operand 13387 states and 71107 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:43,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:43,367 INFO L93 Difference]: Finished difference Result 31247 states and 157118 transitions. [2021-06-05 13:38:43,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:43,368 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:43,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:43,467 INFO L225 Difference]: With dead ends: 31247 [2021-06-05 13:38:43,468 INFO L226 Difference]: Without dead ends: 30316 [2021-06-05 13:38:43,468 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 175.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:44,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30316 states. [2021-06-05 13:38:44,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30316 to 13219. [2021-06-05 13:38:44,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13219 states, 13218 states have (on average 5.326902708427902) internal successors, (70411), 13218 states have internal predecessors, (70411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:44,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13219 states to 13219 states and 70411 transitions. [2021-06-05 13:38:44,720 INFO L78 Accepts]: Start accepts. Automaton has 13219 states and 70411 transitions. Word has length 33 [2021-06-05 13:38:44,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:44,720 INFO L482 AbstractCegarLoop]: Abstraction has 13219 states and 70411 transitions. [2021-06-05 13:38:44,720 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:44,720 INFO L276 IsEmpty]: Start isEmpty. Operand 13219 states and 70411 transitions. [2021-06-05 13:38:44,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:44,748 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:44,748 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:44,748 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2021-06-05 13:38:44,748 INFO L430 AbstractCegarLoop]: === Iteration 212 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:44,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:44,748 INFO L82 PathProgramCache]: Analyzing trace with hash -538025027, now seen corresponding path program 205 times [2021-06-05 13:38:44,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:44,749 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316494166] [2021-06-05 13:38:44,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:44,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:44,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:44,910 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:44,911 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316494166] [2021-06-05 13:38:44,911 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316494166] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:44,911 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:44,911 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:44,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112362938] [2021-06-05 13:38:44,911 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:44,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:44,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:44,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:44,911 INFO L87 Difference]: Start difference. First operand 13219 states and 70411 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:45,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:45,201 INFO L93 Difference]: Finished difference Result 31825 states and 159992 transitions. [2021-06-05 13:38:45,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:45,201 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:45,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:45,301 INFO L225 Difference]: With dead ends: 31825 [2021-06-05 13:38:45,301 INFO L226 Difference]: Without dead ends: 31066 [2021-06-05 13:38:45,301 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 206.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:46,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31066 states. [2021-06-05 13:38:46,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31066 to 13501. [2021-06-05 13:38:46,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13501 states, 13500 states have (on average 5.31525925925926) internal successors, (71756), 13500 states have internal predecessors, (71756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:46,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13501 states to 13501 states and 71756 transitions. [2021-06-05 13:38:46,584 INFO L78 Accepts]: Start accepts. Automaton has 13501 states and 71756 transitions. Word has length 33 [2021-06-05 13:38:46,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:46,584 INFO L482 AbstractCegarLoop]: Abstraction has 13501 states and 71756 transitions. [2021-06-05 13:38:46,584 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:46,584 INFO L276 IsEmpty]: Start isEmpty. Operand 13501 states and 71756 transitions. [2021-06-05 13:38:46,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:46,612 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:46,612 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:46,612 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2021-06-05 13:38:46,613 INFO L430 AbstractCegarLoop]: === Iteration 213 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:46,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:46,613 INFO L82 PathProgramCache]: Analyzing trace with hash -108323749, now seen corresponding path program 206 times [2021-06-05 13:38:46,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:46,613 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042789395] [2021-06-05 13:38:46,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:46,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:46,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:46,782 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:46,782 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042789395] [2021-06-05 13:38:46,782 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042789395] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:46,782 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:46,782 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:46,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617728716] [2021-06-05 13:38:46,782 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:46,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:46,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:46,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:46,783 INFO L87 Difference]: Start difference. First operand 13501 states and 71756 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:46,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:46,998 INFO L93 Difference]: Finished difference Result 31960 states and 160463 transitions. [2021-06-05 13:38:46,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:46,999 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:46,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:47,099 INFO L225 Difference]: With dead ends: 31960 [2021-06-05 13:38:47,099 INFO L226 Difference]: Without dead ends: 30878 [2021-06-05 13:38:47,100 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 171.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:48,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30878 states. [2021-06-05 13:38:48,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30878 to 13313. [2021-06-05 13:38:48,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13313 states, 13312 states have (on average 5.3213641826923075) internal successors, (70838), 13312 states have internal predecessors, (70838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:48,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13313 states to 13313 states and 70838 transitions. [2021-06-05 13:38:48,403 INFO L78 Accepts]: Start accepts. Automaton has 13313 states and 70838 transitions. Word has length 33 [2021-06-05 13:38:48,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:48,403 INFO L482 AbstractCegarLoop]: Abstraction has 13313 states and 70838 transitions. [2021-06-05 13:38:48,403 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:48,403 INFO L276 IsEmpty]: Start isEmpty. Operand 13313 states and 70838 transitions. [2021-06-05 13:38:48,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:48,432 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:48,432 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:48,432 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2021-06-05 13:38:48,432 INFO L430 AbstractCegarLoop]: === Iteration 214 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:48,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:48,432 INFO L82 PathProgramCache]: Analyzing trace with hash -53054309, now seen corresponding path program 207 times [2021-06-05 13:38:48,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:48,433 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098979754] [2021-06-05 13:38:48,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:48,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:48,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:48,571 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:48,571 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098979754] [2021-06-05 13:38:48,571 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098979754] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:48,571 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:48,571 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:48,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836147145] [2021-06-05 13:38:48,571 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:48,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:48,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:48,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:48,572 INFO L87 Difference]: Start difference. First operand 13313 states and 70838 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:49,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:49,010 INFO L93 Difference]: Finished difference Result 31630 states and 158995 transitions. [2021-06-05 13:38:49,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:49,011 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:49,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:49,110 INFO L225 Difference]: With dead ends: 31630 [2021-06-05 13:38:49,111 INFO L226 Difference]: Without dead ends: 30871 [2021-06-05 13:38:49,111 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 164.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:49,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30871 states. [2021-06-05 13:38:50,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30871 to 13437. [2021-06-05 13:38:50,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13437 states, 13436 states have (on average 5.309764810955642) internal successors, (71342), 13436 states have internal predecessors, (71342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:50,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13437 states to 13437 states and 71342 transitions. [2021-06-05 13:38:50,180 INFO L78 Accepts]: Start accepts. Automaton has 13437 states and 71342 transitions. Word has length 33 [2021-06-05 13:38:50,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:50,180 INFO L482 AbstractCegarLoop]: Abstraction has 13437 states and 71342 transitions. [2021-06-05 13:38:50,181 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:50,181 INFO L276 IsEmpty]: Start isEmpty. Operand 13437 states and 71342 transitions. [2021-06-05 13:38:50,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:50,207 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:50,207 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:50,207 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2021-06-05 13:38:50,207 INFO L430 AbstractCegarLoop]: === Iteration 215 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:50,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:50,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1973906779, now seen corresponding path program 208 times [2021-06-05 13:38:50,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:50,208 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276754010] [2021-06-05 13:38:50,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:50,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:50,465 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-06-05 13:38:50,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:50,491 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:50,491 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276754010] [2021-06-05 13:38:50,492 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276754010] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:50,492 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:50,492 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:50,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746977072] [2021-06-05 13:38:50,492 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:50,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:50,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:50,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:50,492 INFO L87 Difference]: Start difference. First operand 13437 states and 71342 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:50,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:50,740 INFO L93 Difference]: Finished difference Result 31634 states and 158883 transitions. [2021-06-05 13:38:50,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:50,740 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:50,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:50,835 INFO L225 Difference]: With dead ends: 31634 [2021-06-05 13:38:50,836 INFO L226 Difference]: Without dead ends: 30747 [2021-06-05 13:38:50,836 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 307.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:51,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30747 states. [2021-06-05 13:38:52,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30747 to 13313. [2021-06-05 13:38:52,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13313 states, 13312 states have (on average 5.316706730769231) internal successors, (70776), 13312 states have internal predecessors, (70776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:52,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13313 states to 13313 states and 70776 transitions. [2021-06-05 13:38:52,111 INFO L78 Accepts]: Start accepts. Automaton has 13313 states and 70776 transitions. Word has length 33 [2021-06-05 13:38:52,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:52,111 INFO L482 AbstractCegarLoop]: Abstraction has 13313 states and 70776 transitions. [2021-06-05 13:38:52,111 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:52,111 INFO L276 IsEmpty]: Start isEmpty. Operand 13313 states and 70776 transitions. [2021-06-05 13:38:52,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:52,137 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:52,137 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:52,137 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2021-06-05 13:38:52,137 INFO L430 AbstractCegarLoop]: === Iteration 216 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:52,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:52,137 INFO L82 PathProgramCache]: Analyzing trace with hash -2065279367, now seen corresponding path program 209 times [2021-06-05 13:38:52,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:52,137 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731187903] [2021-06-05 13:38:52,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:52,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:52,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:52,274 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:52,274 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731187903] [2021-06-05 13:38:52,274 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731187903] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:52,274 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:52,274 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:52,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839342016] [2021-06-05 13:38:52,274 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:52,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:52,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:52,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:52,274 INFO L87 Difference]: Start difference. First operand 13313 states and 70776 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:52,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:52,515 INFO L93 Difference]: Finished difference Result 31966 states and 160450 transitions. [2021-06-05 13:38:52,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:52,515 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:52,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:52,611 INFO L225 Difference]: With dead ends: 31966 [2021-06-05 13:38:52,612 INFO L226 Difference]: Without dead ends: 31072 [2021-06-05 13:38:52,612 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 144.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:53,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31072 states. [2021-06-05 13:38:53,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31072 to 13503. [2021-06-05 13:38:53,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13503 states, 13502 states have (on average 5.298548363205451) internal successors, (71541), 13502 states have internal predecessors, (71541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:53,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13503 states to 13503 states and 71541 transitions. [2021-06-05 13:38:53,852 INFO L78 Accepts]: Start accepts. Automaton has 13503 states and 71541 transitions. Word has length 33 [2021-06-05 13:38:53,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:53,852 INFO L482 AbstractCegarLoop]: Abstraction has 13503 states and 71541 transitions. [2021-06-05 13:38:53,852 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:53,852 INFO L276 IsEmpty]: Start isEmpty. Operand 13503 states and 71541 transitions. [2021-06-05 13:38:53,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:53,879 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:53,879 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:53,879 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2021-06-05 13:38:53,879 INFO L430 AbstractCegarLoop]: === Iteration 217 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:53,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:53,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1055728219, now seen corresponding path program 210 times [2021-06-05 13:38:53,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:53,880 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298463475] [2021-06-05 13:38:53,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:54,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:54,020 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:54,020 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298463475] [2021-06-05 13:38:54,020 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298463475] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:54,020 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:54,021 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:54,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322841470] [2021-06-05 13:38:54,021 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:54,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:54,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:54,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:54,021 INFO L87 Difference]: Start difference. First operand 13503 states and 71541 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:54,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:54,260 INFO L93 Difference]: Finished difference Result 31835 states and 159677 transitions. [2021-06-05 13:38:54,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:54,260 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:54,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:54,359 INFO L225 Difference]: With dead ends: 31835 [2021-06-05 13:38:54,359 INFO L226 Difference]: Without dead ends: 30788 [2021-06-05 13:38:54,359 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 167.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:55,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30788 states. [2021-06-05 13:38:55,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30788 to 13219. [2021-06-05 13:38:55,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13219 states, 13218 states have (on average 5.323573914359208) internal successors, (70367), 13218 states have internal predecessors, (70367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:55,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13219 states to 13219 states and 70367 transitions. [2021-06-05 13:38:55,719 INFO L78 Accepts]: Start accepts. Automaton has 13219 states and 70367 transitions. Word has length 33 [2021-06-05 13:38:55,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:55,719 INFO L482 AbstractCegarLoop]: Abstraction has 13219 states and 70367 transitions. [2021-06-05 13:38:55,719 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:55,719 INFO L276 IsEmpty]: Start isEmpty. Operand 13219 states and 70367 transitions. [2021-06-05 13:38:55,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:55,746 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:55,746 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:55,746 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2021-06-05 13:38:55,746 INFO L430 AbstractCegarLoop]: === Iteration 218 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:55,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:55,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1691185543, now seen corresponding path program 211 times [2021-06-05 13:38:55,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:55,746 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539029829] [2021-06-05 13:38:55,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:55,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:55,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:55,921 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:55,921 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539029829] [2021-06-05 13:38:55,921 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539029829] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:55,921 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:55,921 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:55,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174505218] [2021-06-05 13:38:55,921 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:55,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:55,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:55,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:55,922 INFO L87 Difference]: Start difference. First operand 13219 states and 70367 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:56,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:56,150 INFO L93 Difference]: Finished difference Result 31711 states and 159487 transitions. [2021-06-05 13:38:56,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:56,151 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:56,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:56,249 INFO L225 Difference]: With dead ends: 31711 [2021-06-05 13:38:56,249 INFO L226 Difference]: Without dead ends: 30976 [2021-06-05 13:38:56,249 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 201.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:57,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30976 states. [2021-06-05 13:38:57,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30976 to 13483. [2021-06-05 13:38:57,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13483 states, 13482 states have (on average 5.313974187805964) internal successors, (71643), 13482 states have internal predecessors, (71643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:57,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13483 states to 13483 states and 71643 transitions. [2021-06-05 13:38:57,659 INFO L78 Accepts]: Start accepts. Automaton has 13483 states and 71643 transitions. Word has length 33 [2021-06-05 13:38:57,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:57,659 INFO L482 AbstractCegarLoop]: Abstraction has 13483 states and 71643 transitions. [2021-06-05 13:38:57,659 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:57,659 INFO L276 IsEmpty]: Start isEmpty. Operand 13483 states and 71643 transitions. [2021-06-05 13:38:57,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:57,686 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:57,686 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:57,686 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2021-06-05 13:38:57,686 INFO L430 AbstractCegarLoop]: === Iteration 219 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:57,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:57,687 INFO L82 PathProgramCache]: Analyzing trace with hash -1615651237, now seen corresponding path program 212 times [2021-06-05 13:38:57,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:57,687 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282677772] [2021-06-05 13:38:57,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:57,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:57,845 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:57,845 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282677772] [2021-06-05 13:38:57,845 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282677772] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:57,845 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:57,845 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:57,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884598578] [2021-06-05 13:38:57,845 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:57,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:57,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:57,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:57,845 INFO L87 Difference]: Start difference. First operand 13483 states and 71643 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:58,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:58,060 INFO L93 Difference]: Finished difference Result 31870 states and 160062 transitions. [2021-06-05 13:38:58,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:38:58,060 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:38:58,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:58,407 INFO L225 Difference]: With dead ends: 31870 [2021-06-05 13:38:58,407 INFO L226 Difference]: Without dead ends: 30800 [2021-06-05 13:38:58,408 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:59,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30800 states. [2021-06-05 13:38:59,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30800 to 13307. [2021-06-05 13:38:59,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13307 states, 13306 states have (on average 5.318728393206072) internal successors, (70771), 13306 states have internal predecessors, (70771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:59,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70771 transitions. [2021-06-05 13:38:59,475 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70771 transitions. Word has length 33 [2021-06-05 13:38:59,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:59,475 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70771 transitions. [2021-06-05 13:38:59,475 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:59,475 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70771 transitions. [2021-06-05 13:38:59,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:38:59,502 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:59,503 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:59,503 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2021-06-05 13:38:59,503 INFO L430 AbstractCegarLoop]: === Iteration 220 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:59,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:59,503 INFO L82 PathProgramCache]: Analyzing trace with hash -290068005, now seen corresponding path program 213 times [2021-06-05 13:38:59,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:59,503 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373527816] [2021-06-05 13:38:59,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:59,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:59,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:59,681 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:59,681 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373527816] [2021-06-05 13:38:59,681 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373527816] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:59,681 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:59,681 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:38:59,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124853445] [2021-06-05 13:38:59,681 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:38:59,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:59,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:38:59,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:38:59,681 INFO L87 Difference]: Start difference. First operand 13307 states and 70771 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:00,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:00,066 INFO L93 Difference]: Finished difference Result 31516 states and 158496 transitions. [2021-06-05 13:39:00,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:00,066 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:00,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:00,163 INFO L225 Difference]: With dead ends: 31516 [2021-06-05 13:39:00,163 INFO L226 Difference]: Without dead ends: 30781 [2021-06-05 13:39:00,163 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 199.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:00,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30781 states. [2021-06-05 13:39:01,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30781 to 13419. [2021-06-05 13:39:01,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13419 states, 13418 states have (on average 5.308913399910568) internal successors, (71235), 13418 states have internal predecessors, (71235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:01,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13419 states to 13419 states and 71235 transitions. [2021-06-05 13:39:01,496 INFO L78 Accepts]: Start accepts. Automaton has 13419 states and 71235 transitions. Word has length 33 [2021-06-05 13:39:01,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:01,496 INFO L482 AbstractCegarLoop]: Abstraction has 13419 states and 71235 transitions. [2021-06-05 13:39:01,496 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:01,496 INFO L276 IsEmpty]: Start isEmpty. Operand 13419 states and 71235 transitions. [2021-06-05 13:39:01,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:01,526 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:01,526 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:01,527 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2021-06-05 13:39:01,527 INFO L430 AbstractCegarLoop]: === Iteration 221 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:01,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:01,527 INFO L82 PathProgramCache]: Analyzing trace with hash 656330075, now seen corresponding path program 214 times [2021-06-05 13:39:01,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:01,527 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786736471] [2021-06-05 13:39:01,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:01,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:01,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:01,686 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:01,686 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786736471] [2021-06-05 13:39:01,686 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786736471] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:01,686 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:01,686 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:01,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168436054] [2021-06-05 13:39:01,686 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:01,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:01,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:01,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:01,687 INFO L87 Difference]: Start difference. First operand 13419 states and 71235 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:01,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:01,923 INFO L93 Difference]: Finished difference Result 31544 states and 158488 transitions. [2021-06-05 13:39:01,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:01,923 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:01,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:02,020 INFO L225 Difference]: With dead ends: 31544 [2021-06-05 13:39:02,020 INFO L226 Difference]: Without dead ends: 30669 [2021-06-05 13:39:02,020 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 186.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:02,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30669 states. [2021-06-05 13:39:03,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30669 to 13307. [2021-06-05 13:39:03,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13307 states, 13306 states have (on average 5.314519765519314) internal successors, (70715), 13306 states have internal predecessors, (70715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:03,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70715 transitions. [2021-06-05 13:39:03,285 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70715 transitions. Word has length 33 [2021-06-05 13:39:03,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:03,285 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70715 transitions. [2021-06-05 13:39:03,285 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:03,285 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70715 transitions. [2021-06-05 13:39:03,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:03,312 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:03,312 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:03,312 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2021-06-05 13:39:03,312 INFO L430 AbstractCegarLoop]: === Iteration 222 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:03,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:03,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1636371645, now seen corresponding path program 215 times [2021-06-05 13:39:03,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:03,312 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504705836] [2021-06-05 13:39:03,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:03,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:03,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:03,484 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:03,484 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504705836] [2021-06-05 13:39:03,484 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504705836] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:03,484 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:03,484 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:03,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717156114] [2021-06-05 13:39:03,484 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:03,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:03,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:03,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:03,485 INFO L87 Difference]: Start difference. First operand 13307 states and 70715 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:03,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:03,764 INFO L93 Difference]: Finished difference Result 31912 states and 160193 transitions. [2021-06-05 13:39:03,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:03,765 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:03,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:03,880 INFO L225 Difference]: With dead ends: 31912 [2021-06-05 13:39:03,880 INFO L226 Difference]: Without dead ends: 31018 [2021-06-05 13:39:03,880 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 177.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:04,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31018 states. [2021-06-05 13:39:05,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31018 to 13497. [2021-06-05 13:39:05,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13497 states, 13496 states have (on average 5.2963841138114995) internal successors, (71480), 13496 states have internal predecessors, (71480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:05,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13497 states to 13497 states and 71480 transitions. [2021-06-05 13:39:05,127 INFO L78 Accepts]: Start accepts. Automaton has 13497 states and 71480 transitions. Word has length 33 [2021-06-05 13:39:05,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:05,127 INFO L482 AbstractCegarLoop]: Abstraction has 13497 states and 71480 transitions. [2021-06-05 13:39:05,127 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:05,127 INFO L276 IsEmpty]: Start isEmpty. Operand 13497 states and 71480 transitions. [2021-06-05 13:39:05,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:05,154 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:05,154 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:05,154 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2021-06-05 13:39:05,154 INFO L430 AbstractCegarLoop]: === Iteration 223 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:05,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:05,155 INFO L82 PathProgramCache]: Analyzing trace with hash -396640997, now seen corresponding path program 216 times [2021-06-05 13:39:05,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:05,155 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213239827] [2021-06-05 13:39:05,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:05,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:05,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:05,300 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:05,300 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213239827] [2021-06-05 13:39:05,300 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213239827] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:05,300 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:05,300 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:05,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415868759] [2021-06-05 13:39:05,300 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:05,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:05,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:05,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:05,301 INFO L87 Difference]: Start difference. First operand 13497 states and 71480 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:05,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:05,557 INFO L93 Difference]: Finished difference Result 31781 states and 159420 transitions. [2021-06-05 13:39:05,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:05,557 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:05,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:05,667 INFO L225 Difference]: With dead ends: 31781 [2021-06-05 13:39:05,667 INFO L226 Difference]: Without dead ends: 30696 [2021-06-05 13:39:05,667 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 173.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:06,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30696 states. [2021-06-05 13:39:06,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30696 to 13175. [2021-06-05 13:39:06,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13175 states, 13174 states have (on average 5.328146348868985) internal successors, (70193), 13174 states have internal predecessors, (70193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:07,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13175 states to 13175 states and 70193 transitions. [2021-06-05 13:39:07,023 INFO L78 Accepts]: Start accepts. Automaton has 13175 states and 70193 transitions. Word has length 33 [2021-06-05 13:39:07,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:07,023 INFO L482 AbstractCegarLoop]: Abstraction has 13175 states and 70193 transitions. [2021-06-05 13:39:07,023 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:07,023 INFO L276 IsEmpty]: Start isEmpty. Operand 13175 states and 70193 transitions. [2021-06-05 13:39:07,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:07,057 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:07,057 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:07,057 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2021-06-05 13:39:07,057 INFO L430 AbstractCegarLoop]: === Iteration 224 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:07,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:07,057 INFO L82 PathProgramCache]: Analyzing trace with hash 776824663, now seen corresponding path program 217 times [2021-06-05 13:39:07,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:07,058 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486308988] [2021-06-05 13:39:07,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:07,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:07,221 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:07,221 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486308988] [2021-06-05 13:39:07,221 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486308988] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:07,221 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:07,221 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:07,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138490757] [2021-06-05 13:39:07,221 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:07,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:07,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:07,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:07,222 INFO L87 Difference]: Start difference. First operand 13175 states and 70193 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:07,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:07,556 INFO L93 Difference]: Finished difference Result 31484 states and 158570 transitions. [2021-06-05 13:39:07,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:07,556 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:07,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:07,654 INFO L225 Difference]: With dead ends: 31484 [2021-06-05 13:39:07,654 INFO L226 Difference]: Without dead ends: 30733 [2021-06-05 13:39:07,654 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 274.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:08,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30733 states. [2021-06-05 13:39:08,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30733 to 13419. [2021-06-05 13:39:08,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13419 states, 13418 states have (on average 5.322477269339693) internal successors, (71417), 13418 states have internal predecessors, (71417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:08,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13419 states to 13419 states and 71417 transitions. [2021-06-05 13:39:08,942 INFO L78 Accepts]: Start accepts. Automaton has 13419 states and 71417 transitions. Word has length 33 [2021-06-05 13:39:08,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:08,942 INFO L482 AbstractCegarLoop]: Abstraction has 13419 states and 71417 transitions. [2021-06-05 13:39:08,942 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:08,942 INFO L276 IsEmpty]: Start isEmpty. Operand 13419 states and 71417 transitions. [2021-06-05 13:39:08,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:08,969 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:08,969 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:08,969 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2021-06-05 13:39:08,969 INFO L430 AbstractCegarLoop]: === Iteration 225 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:08,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:08,970 INFO L82 PathProgramCache]: Analyzing trace with hash 295922617, now seen corresponding path program 218 times [2021-06-05 13:39:08,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:08,970 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369403160] [2021-06-05 13:39:08,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:08,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:09,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:09,118 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:09,118 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369403160] [2021-06-05 13:39:09,118 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369403160] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:09,118 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:09,118 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:09,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139183677] [2021-06-05 13:39:09,118 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:09,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:09,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:09,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:09,118 INFO L87 Difference]: Start difference. First operand 13419 states and 71417 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:09,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:09,526 INFO L93 Difference]: Finished difference Result 31468 states and 158394 transitions. [2021-06-05 13:39:09,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:09,527 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:09,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:09,621 INFO L225 Difference]: With dead ends: 31468 [2021-06-05 13:39:09,621 INFO L226 Difference]: Without dead ends: 30621 [2021-06-05 13:39:09,622 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 174.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:10,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30621 states. [2021-06-05 13:39:10,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30621 to 13307. [2021-06-05 13:39:10,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13307 states, 13306 states have (on average 5.3281978055012775) internal successors, (70897), 13306 states have internal predecessors, (70897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:10,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70897 transitions. [2021-06-05 13:39:10,693 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70897 transitions. Word has length 33 [2021-06-05 13:39:10,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:10,693 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70897 transitions. [2021-06-05 13:39:10,693 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:10,693 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70897 transitions. [2021-06-05 13:39:10,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:10,720 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:10,720 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:10,720 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2021-06-05 13:39:10,720 INFO L430 AbstractCegarLoop]: === Iteration 226 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:10,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:10,720 INFO L82 PathProgramCache]: Analyzing trace with hash 350848697, now seen corresponding path program 219 times [2021-06-05 13:39:10,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:10,720 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070334101] [2021-06-05 13:39:10,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:10,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:10,924 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 21 [2021-06-05 13:39:11,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:11,014 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:11,014 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070334101] [2021-06-05 13:39:11,014 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070334101] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:11,014 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:11,014 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:11,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225449140] [2021-06-05 13:39:11,014 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:11,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:11,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:11,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:11,014 INFO L87 Difference]: Start difference. First operand 13307 states and 70897 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:11,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:11,263 INFO L93 Difference]: Finished difference Result 31715 states and 159557 transitions. [2021-06-05 13:39:11,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:11,264 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:11,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:11,370 INFO L225 Difference]: With dead ends: 31715 [2021-06-05 13:39:11,370 INFO L226 Difference]: Without dead ends: 30964 [2021-06-05 13:39:11,370 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 321.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:12,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30964 states. [2021-06-05 13:39:12,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30964 to 13491. [2021-06-05 13:39:12,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13491 states, 13490 states have (on average 5.315715344699778) internal successors, (71709), 13490 states have internal predecessors, (71709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:12,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13491 states to 13491 states and 71709 transitions. [2021-06-05 13:39:12,651 INFO L78 Accepts]: Start accepts. Automaton has 13491 states and 71709 transitions. Word has length 33 [2021-06-05 13:39:12,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:12,651 INFO L482 AbstractCegarLoop]: Abstraction has 13491 states and 71709 transitions. [2021-06-05 13:39:12,652 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:12,652 INFO L276 IsEmpty]: Start isEmpty. Operand 13491 states and 71709 transitions. [2021-06-05 13:39:12,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:12,679 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:12,679 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:12,679 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2021-06-05 13:39:12,679 INFO L430 AbstractCegarLoop]: === Iteration 227 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:12,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:12,679 INFO L82 PathProgramCache]: Analyzing trace with hash 2069913273, now seen corresponding path program 220 times [2021-06-05 13:39:12,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:12,679 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120736842] [2021-06-05 13:39:12,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:12,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:12,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:12,842 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:12,842 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120736842] [2021-06-05 13:39:12,842 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120736842] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:12,842 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:12,842 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:12,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989788904] [2021-06-05 13:39:12,842 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:12,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:12,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:12,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:12,842 INFO L87 Difference]: Start difference. First operand 13491 states and 71709 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:13,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:13,056 INFO L93 Difference]: Finished difference Result 31858 states and 160060 transitions. [2021-06-05 13:39:13,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:13,056 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:13,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:13,156 INFO L225 Difference]: With dead ends: 31858 [2021-06-05 13:39:13,156 INFO L226 Difference]: Without dead ends: 30780 [2021-06-05 13:39:13,156 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 169.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:13,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30780 states. [2021-06-05 13:39:14,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30780 to 13307. [2021-06-05 13:39:14,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13307 states, 13306 states have (on average 5.321584247707801) internal successors, (70809), 13306 states have internal predecessors, (70809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:14,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70809 transitions. [2021-06-05 13:39:14,395 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70809 transitions. Word has length 33 [2021-06-05 13:39:14,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:14,396 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70809 transitions. [2021-06-05 13:39:14,396 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:14,396 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70809 transitions. [2021-06-05 13:39:14,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:14,424 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:14,424 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:14,424 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2021-06-05 13:39:14,424 INFO L430 AbstractCegarLoop]: === Iteration 228 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:14,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:14,424 INFO L82 PathProgramCache]: Analyzing trace with hash -438537573, now seen corresponding path program 221 times [2021-06-05 13:39:14,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:14,425 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563443643] [2021-06-05 13:39:14,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:14,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:14,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:14,588 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:14,588 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563443643] [2021-06-05 13:39:14,588 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563443643] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:14,588 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:14,588 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:14,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293872154] [2021-06-05 13:39:14,588 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:14,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:14,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:14,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:14,589 INFO L87 Difference]: Start difference. First operand 13307 states and 70809 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:14,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:14,820 INFO L93 Difference]: Finished difference Result 31675 states and 159305 transitions. [2021-06-05 13:39:14,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:14,820 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:14,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:14,920 INFO L225 Difference]: With dead ends: 31675 [2021-06-05 13:39:14,920 INFO L226 Difference]: Without dead ends: 30940 [2021-06-05 13:39:14,921 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 190.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:15,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30940 states. [2021-06-05 13:39:16,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30940 to 13483. [2021-06-05 13:39:16,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13483 states, 13482 states have (on average 5.310265539237502) internal successors, (71593), 13482 states have internal predecessors, (71593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:16,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13483 states to 13483 states and 71593 transitions. [2021-06-05 13:39:16,216 INFO L78 Accepts]: Start accepts. Automaton has 13483 states and 71593 transitions. Word has length 33 [2021-06-05 13:39:16,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:16,216 INFO L482 AbstractCegarLoop]: Abstraction has 13483 states and 71593 transitions. [2021-06-05 13:39:16,216 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:16,216 INFO L276 IsEmpty]: Start isEmpty. Operand 13483 states and 71593 transitions. [2021-06-05 13:39:16,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:16,244 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:16,244 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:16,244 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2021-06-05 13:39:16,244 INFO L430 AbstractCegarLoop]: === Iteration 229 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:16,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:16,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1903025913, now seen corresponding path program 222 times [2021-06-05 13:39:16,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:16,244 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696545225] [2021-06-05 13:39:16,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:16,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:16,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:16,413 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:16,413 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696545225] [2021-06-05 13:39:16,413 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696545225] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:16,413 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:16,413 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:16,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439244346] [2021-06-05 13:39:16,413 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:16,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:16,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:16,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:16,413 INFO L87 Difference]: Start difference. First operand 13483 states and 71593 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:16,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:16,630 INFO L93 Difference]: Finished difference Result 31834 states and 159880 transitions. [2021-06-05 13:39:16,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:16,630 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:16,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:16,732 INFO L225 Difference]: With dead ends: 31834 [2021-06-05 13:39:16,732 INFO L226 Difference]: Without dead ends: 30676 [2021-06-05 13:39:16,732 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 170.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:17,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30676 states. [2021-06-05 13:39:17,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30676 to 13219. [2021-06-05 13:39:18,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13219 states, 13218 states have (on average 5.327356634891814) internal successors, (70417), 13218 states have internal predecessors, (70417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:18,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13219 states to 13219 states and 70417 transitions. [2021-06-05 13:39:18,043 INFO L78 Accepts]: Start accepts. Automaton has 13219 states and 70417 transitions. Word has length 33 [2021-06-05 13:39:18,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:18,043 INFO L482 AbstractCegarLoop]: Abstraction has 13219 states and 70417 transitions. [2021-06-05 13:39:18,043 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:18,043 INFO L276 IsEmpty]: Start isEmpty. Operand 13219 states and 70417 transitions. [2021-06-05 13:39:18,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:18,072 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:18,073 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:18,073 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2021-06-05 13:39:18,073 INFO L430 AbstractCegarLoop]: === Iteration 230 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:18,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:18,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1368952263, now seen corresponding path program 223 times [2021-06-05 13:39:18,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:18,073 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666115894] [2021-06-05 13:39:18,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:18,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:18,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:18,212 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:18,212 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666115894] [2021-06-05 13:39:18,212 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666115894] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:18,212 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:18,212 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:18,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116635191] [2021-06-05 13:39:18,212 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:18,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:18,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:18,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:18,212 INFO L87 Difference]: Start difference. First operand 13219 states and 70417 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:18,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:18,473 INFO L93 Difference]: Finished difference Result 31193 states and 157127 transitions. [2021-06-05 13:39:18,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:18,473 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:18,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:18,803 INFO L225 Difference]: With dead ends: 31193 [2021-06-05 13:39:18,803 INFO L226 Difference]: Without dead ends: 30442 [2021-06-05 13:39:18,803 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 161.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:19,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30442 states. [2021-06-05 13:39:19,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30442 to 13387. [2021-06-05 13:39:19,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13387 states, 13386 states have (on average 5.318765874794561) internal successors, (71197), 13386 states have internal predecessors, (71197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:19,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13387 states to 13387 states and 71197 transitions. [2021-06-05 13:39:19,872 INFO L78 Accepts]: Start accepts. Automaton has 13387 states and 71197 transitions. Word has length 33 [2021-06-05 13:39:19,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:19,872 INFO L482 AbstractCegarLoop]: Abstraction has 13387 states and 71197 transitions. [2021-06-05 13:39:19,872 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:19,872 INFO L276 IsEmpty]: Start isEmpty. Operand 13387 states and 71197 transitions. [2021-06-05 13:39:19,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:19,899 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:19,899 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:19,899 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2021-06-05 13:39:19,899 INFO L430 AbstractCegarLoop]: === Iteration 231 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:19,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:19,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1849854309, now seen corresponding path program 224 times [2021-06-05 13:39:19,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:19,899 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211697338] [2021-06-05 13:39:19,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:19,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:20,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:20,034 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:20,034 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211697338] [2021-06-05 13:39:20,034 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211697338] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:20,034 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:20,034 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:20,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532741522] [2021-06-05 13:39:20,034 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:20,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:20,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:20,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:20,035 INFO L87 Difference]: Start difference. First operand 13387 states and 71197 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:20,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:20,448 INFO L93 Difference]: Finished difference Result 31177 states and 156951 transitions. [2021-06-05 13:39:20,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:20,448 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:20,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:20,546 INFO L225 Difference]: With dead ends: 31177 [2021-06-05 13:39:20,546 INFO L226 Difference]: Without dead ends: 30330 [2021-06-05 13:39:20,546 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 161.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:21,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30330 states. [2021-06-05 13:39:21,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30330 to 13275. [2021-06-05 13:39:21,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13275 states, 13274 states have (on average 5.324468886545126) internal successors, (70677), 13274 states have internal predecessors, (70677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:21,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13275 states to 13275 states and 70677 transitions. [2021-06-05 13:39:21,847 INFO L78 Accepts]: Start accepts. Automaton has 13275 states and 70677 transitions. Word has length 33 [2021-06-05 13:39:21,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:21,847 INFO L482 AbstractCegarLoop]: Abstraction has 13275 states and 70677 transitions. [2021-06-05 13:39:21,847 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:21,847 INFO L276 IsEmpty]: Start isEmpty. Operand 13275 states and 70677 transitions. [2021-06-05 13:39:21,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:21,880 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:21,880 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:21,880 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2021-06-05 13:39:21,880 INFO L430 AbstractCegarLoop]: === Iteration 232 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:21,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:21,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1881503161, now seen corresponding path program 225 times [2021-06-05 13:39:21,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:21,881 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844580453] [2021-06-05 13:39:21,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:22,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:22,016 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:22,016 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844580453] [2021-06-05 13:39:22,016 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844580453] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:22,016 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:22,016 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:22,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274886927] [2021-06-05 13:39:22,016 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:22,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:22,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:22,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:22,016 INFO L87 Difference]: Start difference. First operand 13275 states and 70677 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:22,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:22,247 INFO L93 Difference]: Finished difference Result 31229 states and 157211 transitions. [2021-06-05 13:39:22,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:22,248 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:22,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:22,344 INFO L225 Difference]: With dead ends: 31229 [2021-06-05 13:39:22,344 INFO L226 Difference]: Without dead ends: 30478 [2021-06-05 13:39:22,344 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 163.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:23,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30478 states. [2021-06-05 13:39:23,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30478 to 13395. [2021-06-05 13:39:23,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13395 states, 13394 states have (on average 5.3134985814543825) internal successors, (71169), 13394 states have internal predecessors, (71169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:23,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13395 states to 13395 states and 71169 transitions. [2021-06-05 13:39:23,605 INFO L78 Accepts]: Start accepts. Automaton has 13395 states and 71169 transitions. Word has length 33 [2021-06-05 13:39:23,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:23,605 INFO L482 AbstractCegarLoop]: Abstraction has 13395 states and 71169 transitions. [2021-06-05 13:39:23,605 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:23,605 INFO L276 IsEmpty]: Start isEmpty. Operand 13395 states and 71169 transitions. [2021-06-05 13:39:23,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:23,632 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:23,632 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:23,632 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2021-06-05 13:39:23,632 INFO L430 AbstractCegarLoop]: === Iteration 233 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:23,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:23,632 INFO L82 PathProgramCache]: Analyzing trace with hash -2100417095, now seen corresponding path program 226 times [2021-06-05 13:39:23,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:23,633 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196725088] [2021-06-05 13:39:23,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:23,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:23,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:23,779 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:23,779 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196725088] [2021-06-05 13:39:23,779 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196725088] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:23,779 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:23,779 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:23,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113039407] [2021-06-05 13:39:23,779 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:23,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:23,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:23,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:23,780 INFO L87 Difference]: Start difference. First operand 13395 states and 71169 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:24,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:24,015 INFO L93 Difference]: Finished difference Result 31241 states and 157131 transitions. [2021-06-05 13:39:24,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:24,015 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:24,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:24,111 INFO L225 Difference]: With dead ends: 31241 [2021-06-05 13:39:24,111 INFO L226 Difference]: Without dead ends: 30358 [2021-06-05 13:39:24,111 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 168.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:24,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30358 states. [2021-06-05 13:39:25,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30358 to 13275. [2021-06-05 13:39:25,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13275 states, 13274 states have (on average 5.320250113002863) internal successors, (70621), 13274 states have internal predecessors, (70621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:25,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13275 states to 13275 states and 70621 transitions. [2021-06-05 13:39:25,357 INFO L78 Accepts]: Start accepts. Automaton has 13275 states and 70621 transitions. Word has length 33 [2021-06-05 13:39:25,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:25,357 INFO L482 AbstractCegarLoop]: Abstraction has 13275 states and 70621 transitions. [2021-06-05 13:39:25,357 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:25,357 INFO L276 IsEmpty]: Start isEmpty. Operand 13275 states and 70621 transitions. [2021-06-05 13:39:25,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:25,385 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:25,385 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:25,385 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2021-06-05 13:39:25,385 INFO L430 AbstractCegarLoop]: === Iteration 234 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:25,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:25,385 INFO L82 PathProgramCache]: Analyzing trace with hash 1092116891, now seen corresponding path program 227 times [2021-06-05 13:39:25,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:25,385 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276630096] [2021-06-05 13:39:25,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:25,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:25,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:25,537 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:25,537 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276630096] [2021-06-05 13:39:25,537 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276630096] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:25,537 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:25,537 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:25,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194978822] [2021-06-05 13:39:25,537 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:25,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:25,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:25,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:25,538 INFO L87 Difference]: Start difference. First operand 13275 states and 70621 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:25,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:25,794 INFO L93 Difference]: Finished difference Result 31189 states and 156991 transitions. [2021-06-05 13:39:25,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:25,794 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:25,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:25,906 INFO L225 Difference]: With dead ends: 31189 [2021-06-05 13:39:25,907 INFO L226 Difference]: Without dead ends: 30454 [2021-06-05 13:39:25,907 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 178.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:26,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30454 states. [2021-06-05 13:39:27,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30454 to 13387. [2021-06-05 13:39:27,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13387 states, 13386 states have (on average 5.310398924249216) internal successors, (71085), 13386 states have internal predecessors, (71085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:27,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13387 states to 13387 states and 71085 transitions. [2021-06-05 13:39:27,200 INFO L78 Accepts]: Start accepts. Automaton has 13387 states and 71085 transitions. Word has length 33 [2021-06-05 13:39:27,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:27,200 INFO L482 AbstractCegarLoop]: Abstraction has 13387 states and 71085 transitions. [2021-06-05 13:39:27,200 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:27,200 INFO L276 IsEmpty]: Start isEmpty. Operand 13387 states and 71085 transitions. [2021-06-05 13:39:27,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:27,227 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:27,227 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:27,228 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2021-06-05 13:39:27,228 INFO L430 AbstractCegarLoop]: === Iteration 235 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:27,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:27,228 INFO L82 PathProgramCache]: Analyzing trace with hash -881189127, now seen corresponding path program 228 times [2021-06-05 13:39:27,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:27,228 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41819420] [2021-06-05 13:39:27,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:27,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:27,378 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:27,378 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41819420] [2021-06-05 13:39:27,378 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41819420] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:27,378 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:27,378 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:27,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232153172] [2021-06-05 13:39:27,378 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:27,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:27,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:27,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:27,378 INFO L87 Difference]: Start difference. First operand 13387 states and 71085 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:27,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:27,622 INFO L93 Difference]: Finished difference Result 31217 states and 156983 transitions. [2021-06-05 13:39:27,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:27,622 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:27,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:27,717 INFO L225 Difference]: With dead ends: 31217 [2021-06-05 13:39:27,718 INFO L226 Difference]: Without dead ends: 30286 [2021-06-05 13:39:27,718 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 178.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:28,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30286 states. [2021-06-05 13:39:28,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30286 to 13219. [2021-06-05 13:39:28,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13219 states, 13218 states have (on average 5.325238311393554) internal successors, (70389), 13218 states have internal predecessors, (70389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:28,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13219 states to 13219 states and 70389 transitions. [2021-06-05 13:39:28,999 INFO L78 Accepts]: Start accepts. Automaton has 13219 states and 70389 transitions. Word has length 33 [2021-06-05 13:39:28,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:28,999 INFO L482 AbstractCegarLoop]: Abstraction has 13219 states and 70389 transitions. [2021-06-05 13:39:28,999 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:28,999 INFO L276 IsEmpty]: Start isEmpty. Operand 13219 states and 70389 transitions. [2021-06-05 13:39:29,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:29,025 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:29,025 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:29,025 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2021-06-05 13:39:29,025 INFO L430 AbstractCegarLoop]: === Iteration 236 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:29,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:29,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1191353189, now seen corresponding path program 229 times [2021-06-05 13:39:29,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:29,026 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630877770] [2021-06-05 13:39:29,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:29,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:29,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:29,174 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:29,174 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630877770] [2021-06-05 13:39:29,174 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630877770] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:29,174 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:29,174 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:29,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181684105] [2021-06-05 13:39:29,174 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:29,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:29,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:29,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:29,174 INFO L87 Difference]: Start difference. First operand 13219 states and 70389 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:29,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:29,608 INFO L93 Difference]: Finished difference Result 31769 states and 159760 transitions. [2021-06-05 13:39:29,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:29,608 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:29,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:29,708 INFO L225 Difference]: With dead ends: 31769 [2021-06-05 13:39:29,708 INFO L226 Difference]: Without dead ends: 31018 [2021-06-05 13:39:29,709 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 176.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:30,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31018 states. [2021-06-05 13:39:30,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31018 to 13495. [2021-06-05 13:39:30,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13495 states, 13494 states have (on average 5.314436045649918) internal successors, (71713), 13494 states have internal predecessors, (71713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:30,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13495 states to 13495 states and 71713 transitions. [2021-06-05 13:39:30,791 INFO L78 Accepts]: Start accepts. Automaton has 13495 states and 71713 transitions. Word has length 33 [2021-06-05 13:39:30,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:30,791 INFO L482 AbstractCegarLoop]: Abstraction has 13495 states and 71713 transitions. [2021-06-05 13:39:30,791 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:30,791 INFO L276 IsEmpty]: Start isEmpty. Operand 13495 states and 71713 transitions. [2021-06-05 13:39:30,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:30,818 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:30,818 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:30,818 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2021-06-05 13:39:30,818 INFO L430 AbstractCegarLoop]: === Iteration 237 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:30,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:30,818 INFO L82 PathProgramCache]: Analyzing trace with hash 527711387, now seen corresponding path program 230 times [2021-06-05 13:39:30,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:30,818 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099363058] [2021-06-05 13:39:30,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:30,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:31,099 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-06-05 13:39:31,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:31,126 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:31,126 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099363058] [2021-06-05 13:39:31,126 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099363058] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:31,126 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:31,126 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:31,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431975027] [2021-06-05 13:39:31,126 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:31,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:31,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:31,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:31,126 INFO L87 Difference]: Start difference. First operand 13495 states and 71713 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:31,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:31,338 INFO L93 Difference]: Finished difference Result 31912 states and 160263 transitions. [2021-06-05 13:39:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:31,338 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:31,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:31,435 INFO L225 Difference]: With dead ends: 31912 [2021-06-05 13:39:31,435 INFO L226 Difference]: Without dead ends: 30834 [2021-06-05 13:39:31,436 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 314.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:32,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30834 states. [2021-06-05 13:39:32,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30834 to 13311. [2021-06-05 13:39:32,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13311 states, 13310 states have (on average 5.319984973703982) internal successors, (70809), 13310 states have internal predecessors, (70809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:32,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13311 states to 13311 states and 70809 transitions. [2021-06-05 13:39:32,720 INFO L78 Accepts]: Start accepts. Automaton has 13311 states and 70809 transitions. Word has length 33 [2021-06-05 13:39:32,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:32,720 INFO L482 AbstractCegarLoop]: Abstraction has 13311 states and 70809 transitions. [2021-06-05 13:39:32,720 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:32,720 INFO L276 IsEmpty]: Start isEmpty. Operand 13311 states and 70809 transitions. [2021-06-05 13:39:32,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:32,746 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:32,746 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:32,747 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2021-06-05 13:39:32,747 INFO L430 AbstractCegarLoop]: === Iteration 238 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:32,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:32,747 INFO L82 PathProgramCache]: Analyzing trace with hash -706382471, now seen corresponding path program 231 times [2021-06-05 13:39:32,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:32,747 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38410592] [2021-06-05 13:39:32,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:32,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:32,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:32,888 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:32,889 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38410592] [2021-06-05 13:39:32,889 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38410592] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:32,889 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:32,889 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:32,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467418983] [2021-06-05 13:39:32,889 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:32,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:32,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:32,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:32,889 INFO L87 Difference]: Start difference. First operand 13311 states and 70809 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:33,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:33,114 INFO L93 Difference]: Finished difference Result 31574 states and 158765 transitions. [2021-06-05 13:39:33,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:33,114 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:33,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:33,210 INFO L225 Difference]: With dead ends: 31574 [2021-06-05 13:39:33,211 INFO L226 Difference]: Without dead ends: 30823 [2021-06-05 13:39:33,211 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:33,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30823 states. [2021-06-05 13:39:34,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30823 to 13431. [2021-06-05 13:39:34,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13431 states, 13430 states have (on average 5.309084139985108) internal successors, (71301), 13430 states have internal predecessors, (71301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:34,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13431 states to 13431 states and 71301 transitions. [2021-06-05 13:39:34,468 INFO L78 Accepts]: Start accepts. Automaton has 13431 states and 71301 transitions. Word has length 33 [2021-06-05 13:39:34,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:34,469 INFO L482 AbstractCegarLoop]: Abstraction has 13431 states and 71301 transitions. [2021-06-05 13:39:34,469 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:34,469 INFO L276 IsEmpty]: Start isEmpty. Operand 13431 states and 71301 transitions. [2021-06-05 13:39:34,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:34,496 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:34,496 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:34,496 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2021-06-05 13:39:34,496 INFO L430 AbstractCegarLoop]: === Iteration 239 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:34,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:34,496 INFO L82 PathProgramCache]: Analyzing trace with hash 853539995, now seen corresponding path program 232 times [2021-06-05 13:39:34,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:34,496 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83994027] [2021-06-05 13:39:34,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:34,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:34,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:34,632 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:34,632 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83994027] [2021-06-05 13:39:34,632 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83994027] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:34,632 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:34,632 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:34,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994965419] [2021-06-05 13:39:34,632 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:34,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:34,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:34,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:34,632 INFO L87 Difference]: Start difference. First operand 13431 states and 71301 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:34,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:34,867 INFO L93 Difference]: Finished difference Result 31586 states and 158685 transitions. [2021-06-05 13:39:34,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:34,867 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:34,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:34,965 INFO L225 Difference]: With dead ends: 31586 [2021-06-05 13:39:34,965 INFO L226 Difference]: Without dead ends: 30703 [2021-06-05 13:39:34,965 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 163.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:35,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30703 states. [2021-06-05 13:39:36,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30703 to 13311. [2021-06-05 13:39:36,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13311 states, 13310 states have (on average 5.315477084898572) internal successors, (70749), 13310 states have internal predecessors, (70749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:36,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13311 states to 13311 states and 70749 transitions. [2021-06-05 13:39:36,305 INFO L78 Accepts]: Start accepts. Automaton has 13311 states and 70749 transitions. Word has length 33 [2021-06-05 13:39:36,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:36,305 INFO L482 AbstractCegarLoop]: Abstraction has 13311 states and 70749 transitions. [2021-06-05 13:39:36,306 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:36,306 INFO L276 IsEmpty]: Start isEmpty. Operand 13311 states and 70749 transitions. [2021-06-05 13:39:36,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:36,334 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:36,334 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:36,334 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2021-06-05 13:39:36,334 INFO L430 AbstractCegarLoop]: === Iteration 240 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:36,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:36,334 INFO L82 PathProgramCache]: Analyzing trace with hash 718206107, now seen corresponding path program 233 times [2021-06-05 13:39:36,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:36,335 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748882675] [2021-06-05 13:39:36,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:36,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:36,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:36,472 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:36,472 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748882675] [2021-06-05 13:39:36,472 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748882675] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:36,472 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:36,472 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:36,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590695690] [2021-06-05 13:39:36,473 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:36,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:36,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:36,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:36,473 INFO L87 Difference]: Start difference. First operand 13311 states and 70749 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:36,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:36,689 INFO L93 Difference]: Finished difference Result 31930 states and 160294 transitions. [2021-06-05 13:39:36,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:36,689 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:36,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:36,789 INFO L225 Difference]: With dead ends: 31930 [2021-06-05 13:39:36,790 INFO L226 Difference]: Without dead ends: 31036 [2021-06-05 13:39:36,790 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 144.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:37,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31036 states. [2021-06-05 13:39:38,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31036 to 13501. [2021-06-05 13:39:38,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13501 states, 13500 states have (on average 5.2973333333333334) internal successors, (71514), 13500 states have internal predecessors, (71514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:38,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13501 states to 13501 states and 71514 transitions. [2021-06-05 13:39:38,068 INFO L78 Accepts]: Start accepts. Automaton has 13501 states and 71514 transitions. Word has length 33 [2021-06-05 13:39:38,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:38,068 INFO L482 AbstractCegarLoop]: Abstraction has 13501 states and 71514 transitions. [2021-06-05 13:39:38,069 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:38,069 INFO L276 IsEmpty]: Start isEmpty. Operand 13501 states and 71514 transitions. [2021-06-05 13:39:38,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:38,095 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:38,095 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:38,096 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2021-06-05 13:39:38,096 INFO L430 AbstractCegarLoop]: === Iteration 241 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:38,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:38,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1314806535, now seen corresponding path program 234 times [2021-06-05 13:39:38,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:38,096 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501891498] [2021-06-05 13:39:38,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:38,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:38,247 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:38,248 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501891498] [2021-06-05 13:39:38,248 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501891498] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:38,248 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:38,248 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:38,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246873035] [2021-06-05 13:39:38,248 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:38,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:38,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:38,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:38,248 INFO L87 Difference]: Start difference. First operand 13501 states and 71514 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:38,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:38,502 INFO L93 Difference]: Finished difference Result 31799 states and 159521 transitions. [2021-06-05 13:39:38,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:38,502 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:38,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:38,834 INFO L225 Difference]: With dead ends: 31799 [2021-06-05 13:39:38,834 INFO L226 Difference]: Without dead ends: 30754 [2021-06-05 13:39:38,834 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 173.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:39,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30754 states. [2021-06-05 13:39:39,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30754 to 13219. [2021-06-05 13:39:39,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13219 states, 13218 states have (on average 5.32190951732486) internal successors, (70345), 13218 states have internal predecessors, (70345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:39,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13219 states to 13219 states and 70345 transitions. [2021-06-05 13:39:39,893 INFO L78 Accepts]: Start accepts. Automaton has 13219 states and 70345 transitions. Word has length 33 [2021-06-05 13:39:39,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:39,893 INFO L482 AbstractCegarLoop]: Abstraction has 13219 states and 70345 transitions. [2021-06-05 13:39:39,894 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:39,894 INFO L276 IsEmpty]: Start isEmpty. Operand 13219 states and 70345 transitions. [2021-06-05 13:39:39,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:39,920 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:39,920 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:39,920 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2021-06-05 13:39:39,920 INFO L430 AbstractCegarLoop]: === Iteration 242 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:39,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:39,920 INFO L82 PathProgramCache]: Analyzing trace with hash -2081335299, now seen corresponding path program 235 times [2021-06-05 13:39:39,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:39,920 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849802585] [2021-06-05 13:39:39,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:39,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:40,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:40,084 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:40,084 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849802585] [2021-06-05 13:39:40,084 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849802585] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:40,084 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:40,085 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:40,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317191545] [2021-06-05 13:39:40,085 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:40,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:40,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:40,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:40,085 INFO L87 Difference]: Start difference. First operand 13219 states and 70345 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:40,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:40,564 INFO L93 Difference]: Finished difference Result 31693 states and 159396 transitions. [2021-06-05 13:39:40,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:40,564 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:40,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:40,660 INFO L225 Difference]: With dead ends: 31693 [2021-06-05 13:39:40,660 INFO L226 Difference]: Without dead ends: 30958 [2021-06-05 13:39:40,660 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 187.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:41,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30958 states. [2021-06-05 13:39:41,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30958 to 13483. [2021-06-05 13:39:41,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13483 states, 13482 states have (on average 5.3123423824358404) internal successors, (71621), 13482 states have internal predecessors, (71621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:41,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13483 states to 13483 states and 71621 transitions. [2021-06-05 13:39:41,731 INFO L78 Accepts]: Start accepts. Automaton has 13483 states and 71621 transitions. Word has length 33 [2021-06-05 13:39:41,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:41,732 INFO L482 AbstractCegarLoop]: Abstraction has 13483 states and 71621 transitions. [2021-06-05 13:39:41,732 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:41,732 INFO L276 IsEmpty]: Start isEmpty. Operand 13483 states and 71621 transitions. [2021-06-05 13:39:41,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:41,910 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:41,910 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:41,910 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2021-06-05 13:39:41,910 INFO L430 AbstractCegarLoop]: === Iteration 243 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:41,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:41,910 INFO L82 PathProgramCache]: Analyzing trace with hash 260228187, now seen corresponding path program 236 times [2021-06-05 13:39:41,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:41,910 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418362921] [2021-06-05 13:39:41,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:41,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:42,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:42,070 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:42,070 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418362921] [2021-06-05 13:39:42,070 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418362921] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:42,070 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:42,070 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:42,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885693434] [2021-06-05 13:39:42,070 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:42,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:42,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:42,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:42,070 INFO L87 Difference]: Start difference. First operand 13483 states and 71621 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:42,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:42,299 INFO L93 Difference]: Finished difference Result 31852 states and 159971 transitions. [2021-06-05 13:39:42,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:42,300 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:42,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:42,398 INFO L225 Difference]: With dead ends: 31852 [2021-06-05 13:39:42,398 INFO L226 Difference]: Without dead ends: 30782 [2021-06-05 13:39:42,399 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:43,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30782 states. [2021-06-05 13:39:43,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30782 to 13307. [2021-06-05 13:39:43,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13307 states, 13306 states have (on average 5.3170750037577035) internal successors, (70749), 13306 states have internal predecessors, (70749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:43,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70749 transitions. [2021-06-05 13:39:43,630 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70749 transitions. Word has length 33 [2021-06-05 13:39:43,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:43,630 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70749 transitions. [2021-06-05 13:39:43,630 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:43,630 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70749 transitions. [2021-06-05 13:39:43,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:43,656 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:43,657 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:43,657 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2021-06-05 13:39:43,657 INFO L430 AbstractCegarLoop]: === Iteration 244 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:43,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:43,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1596364581, now seen corresponding path program 237 times [2021-06-05 13:39:43,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:43,657 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077943722] [2021-06-05 13:39:43,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:43,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:43,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:43,820 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:43,820 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077943722] [2021-06-05 13:39:43,820 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077943722] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:43,820 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:43,820 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:43,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707309753] [2021-06-05 13:39:43,820 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:43,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:43,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:43,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:43,820 INFO L87 Difference]: Start difference. First operand 13307 states and 70749 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:44,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:44,049 INFO L93 Difference]: Finished difference Result 31498 states and 158405 transitions. [2021-06-05 13:39:44,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:44,049 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:44,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:44,146 INFO L225 Difference]: With dead ends: 31498 [2021-06-05 13:39:44,146 INFO L226 Difference]: Without dead ends: 30763 [2021-06-05 13:39:44,146 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 187.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:44,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30763 states. [2021-06-05 13:39:45,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30763 to 13419. [2021-06-05 13:39:45,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13419 states, 13418 states have (on average 5.3072738112982565) internal successors, (71213), 13418 states have internal predecessors, (71213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:45,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13419 states to 13419 states and 71213 transitions. [2021-06-05 13:39:45,398 INFO L78 Accepts]: Start accepts. Automaton has 13419 states and 71213 transitions. Word has length 33 [2021-06-05 13:39:45,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:45,398 INFO L482 AbstractCegarLoop]: Abstraction has 13419 states and 71213 transitions. [2021-06-05 13:39:45,398 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:45,398 INFO L276 IsEmpty]: Start isEmpty. Operand 13419 states and 71213 transitions. [2021-06-05 13:39:45,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:45,424 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:45,424 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:45,425 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2021-06-05 13:39:45,425 INFO L430 AbstractCegarLoop]: === Iteration 245 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:45,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:45,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1972172123, now seen corresponding path program 238 times [2021-06-05 13:39:45,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:45,425 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663591134] [2021-06-05 13:39:45,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:45,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:45,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:45,589 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:45,589 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663591134] [2021-06-05 13:39:45,589 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663591134] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:45,589 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:45,589 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:45,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162748044] [2021-06-05 13:39:45,589 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:45,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:45,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:45,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:45,590 INFO L87 Difference]: Start difference. First operand 13419 states and 71213 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:45,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:45,818 INFO L93 Difference]: Finished difference Result 31526 states and 158397 transitions. [2021-06-05 13:39:45,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:45,819 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:45,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:45,915 INFO L225 Difference]: With dead ends: 31526 [2021-06-05 13:39:45,916 INFO L226 Difference]: Without dead ends: 30651 [2021-06-05 13:39:45,916 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 189.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:46,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30651 states. [2021-06-05 13:39:47,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30651 to 13307. [2021-06-05 13:39:47,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13307 states, 13306 states have (on average 5.312866376070946) internal successors, (70693), 13306 states have internal predecessors, (70693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:47,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70693 transitions. [2021-06-05 13:39:47,204 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70693 transitions. Word has length 33 [2021-06-05 13:39:47,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:47,205 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70693 transitions. [2021-06-05 13:39:47,205 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:47,205 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70693 transitions. [2021-06-05 13:39:47,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:47,231 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:47,232 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:47,232 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2021-06-05 13:39:47,232 INFO L430 AbstractCegarLoop]: === Iteration 246 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:47,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:47,232 INFO L82 PathProgramCache]: Analyzing trace with hash -2006277575, now seen corresponding path program 239 times [2021-06-05 13:39:47,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:47,232 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953000917] [2021-06-05 13:39:47,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:47,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:47,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:47,396 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:47,396 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953000917] [2021-06-05 13:39:47,396 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953000917] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:47,396 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:47,396 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:47,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228176271] [2021-06-05 13:39:47,397 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:47,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:47,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:47,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:47,397 INFO L87 Difference]: Start difference. First operand 13307 states and 70693 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:47,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:47,604 INFO L93 Difference]: Finished difference Result 31894 states and 160102 transitions. [2021-06-05 13:39:47,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:47,605 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:47,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:47,703 INFO L225 Difference]: With dead ends: 31894 [2021-06-05 13:39:47,703 INFO L226 Difference]: Without dead ends: 31000 [2021-06-05 13:39:47,704 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 156.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:48,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31000 states. [2021-06-05 13:39:49,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31000 to 13497. [2021-06-05 13:39:49,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13497 states, 13496 states have (on average 5.294754001185536) internal successors, (71458), 13496 states have internal predecessors, (71458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:49,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13497 states to 13497 states and 71458 transitions. [2021-06-05 13:39:49,080 INFO L78 Accepts]: Start accepts. Automaton has 13497 states and 71458 transitions. Word has length 33 [2021-06-05 13:39:49,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:49,080 INFO L482 AbstractCegarLoop]: Abstraction has 13497 states and 71458 transitions. [2021-06-05 13:39:49,080 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:49,081 INFO L276 IsEmpty]: Start isEmpty. Operand 13497 states and 71458 transitions. [2021-06-05 13:39:49,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:49,108 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:49,108 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:49,108 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2021-06-05 13:39:49,108 INFO L430 AbstractCegarLoop]: === Iteration 247 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:49,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:49,109 INFO L82 PathProgramCache]: Analyzing trace with hash -605160037, now seen corresponding path program 240 times [2021-06-05 13:39:49,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:49,109 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644831858] [2021-06-05 13:39:49,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:49,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:49,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:49,267 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:49,267 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644831858] [2021-06-05 13:39:49,268 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644831858] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:49,268 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:49,268 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:49,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613976438] [2021-06-05 13:39:49,268 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:49,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:49,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:49,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:49,268 INFO L87 Difference]: Start difference. First operand 13497 states and 71458 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:49,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:49,723 INFO L93 Difference]: Finished difference Result 31763 states and 159329 transitions. [2021-06-05 13:39:49,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:49,724 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:49,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:49,828 INFO L225 Difference]: With dead ends: 31763 [2021-06-05 13:39:49,828 INFO L226 Difference]: Without dead ends: 30656 [2021-06-05 13:39:49,828 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 186.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:50,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30656 states. [2021-06-05 13:39:50,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30656 to 13153. [2021-06-05 13:39:50,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13153 states, 13152 states have (on average 5.331280413625304) internal successors, (70117), 13152 states have internal predecessors, (70117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:50,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13153 states to 13153 states and 70117 transitions. [2021-06-05 13:39:50,934 INFO L78 Accepts]: Start accepts. Automaton has 13153 states and 70117 transitions. Word has length 33 [2021-06-05 13:39:50,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:50,934 INFO L482 AbstractCegarLoop]: Abstraction has 13153 states and 70117 transitions. [2021-06-05 13:39:50,934 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:50,934 INFO L276 IsEmpty]: Start isEmpty. Operand 13153 states and 70117 transitions. [2021-06-05 13:39:50,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:50,960 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:50,961 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:50,961 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2021-06-05 13:39:50,961 INFO L430 AbstractCegarLoop]: === Iteration 248 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:50,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:50,961 INFO L82 PathProgramCache]: Analyzing trace with hash 2102111005, now seen corresponding path program 241 times [2021-06-05 13:39:50,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:50,961 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183193015] [2021-06-05 13:39:50,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:50,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:51,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:51,114 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:51,114 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183193015] [2021-06-05 13:39:51,114 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183193015] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:51,114 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:51,114 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:51,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763569999] [2021-06-05 13:39:51,114 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:51,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:51,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:51,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:51,114 INFO L87 Difference]: Start difference. First operand 13153 states and 70117 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:51,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:51,510 INFO L93 Difference]: Finished difference Result 32231 states and 161807 transitions. [2021-06-05 13:39:51,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:51,511 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:51,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:51,610 INFO L225 Difference]: With dead ends: 32231 [2021-06-05 13:39:51,610 INFO L226 Difference]: Without dead ends: 31472 [2021-06-05 13:39:51,611 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 177.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:52,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31472 states. [2021-06-05 13:39:52,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31472 to 13482. [2021-06-05 13:39:52,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13482 states, 13481 states have (on average 5.322973073214153) internal successors, (71759), 13481 states have internal predecessors, (71759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:52,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13482 states to 13482 states and 71759 transitions. [2021-06-05 13:39:52,968 INFO L78 Accepts]: Start accepts. Automaton has 13482 states and 71759 transitions. Word has length 33 [2021-06-05 13:39:52,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:52,968 INFO L482 AbstractCegarLoop]: Abstraction has 13482 states and 71759 transitions. [2021-06-05 13:39:52,968 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:52,968 INFO L276 IsEmpty]: Start isEmpty. Operand 13482 states and 71759 transitions. [2021-06-05 13:39:52,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:52,996 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:52,996 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:52,996 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2021-06-05 13:39:52,996 INFO L430 AbstractCegarLoop]: === Iteration 249 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:52,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:52,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1255314043, now seen corresponding path program 242 times [2021-06-05 13:39:52,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:52,997 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666821320] [2021-06-05 13:39:52,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:52,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:53,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:53,150 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:53,150 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666821320] [2021-06-05 13:39:53,150 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666821320] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:53,150 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:53,151 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:53,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27479762] [2021-06-05 13:39:53,151 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:53,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:53,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:53,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:53,151 INFO L87 Difference]: Start difference. First operand 13482 states and 71759 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:53,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:53,392 INFO L93 Difference]: Finished difference Result 32223 states and 161659 transitions. [2021-06-05 13:39:53,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:53,392 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:53,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:53,497 INFO L225 Difference]: With dead ends: 32223 [2021-06-05 13:39:53,497 INFO L226 Difference]: Without dead ends: 31352 [2021-06-05 13:39:53,498 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 179.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:54,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31352 states. [2021-06-05 13:39:54,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31352 to 13362. [2021-06-05 13:39:54,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13362 states, 13361 states have (on average 5.3294663573085845) internal successors, (71207), 13361 states have internal predecessors, (71207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:54,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13362 states to 13362 states and 71207 transitions. [2021-06-05 13:39:54,808 INFO L78 Accepts]: Start accepts. Automaton has 13362 states and 71207 transitions. Word has length 33 [2021-06-05 13:39:54,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:54,808 INFO L482 AbstractCegarLoop]: Abstraction has 13362 states and 71207 transitions. [2021-06-05 13:39:54,808 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:54,808 INFO L276 IsEmpty]: Start isEmpty. Operand 13362 states and 71207 transitions. [2021-06-05 13:39:54,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:54,836 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:54,836 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:54,836 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2021-06-05 13:39:54,836 INFO L430 AbstractCegarLoop]: === Iteration 250 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:54,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:54,836 INFO L82 PathProgramCache]: Analyzing trace with hash -441461987, now seen corresponding path program 243 times [2021-06-05 13:39:54,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:54,837 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878641584] [2021-06-05 13:39:54,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:54,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:55,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:55,022 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:55,022 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878641584] [2021-06-05 13:39:55,022 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878641584] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:55,022 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:55,022 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:55,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102719346] [2021-06-05 13:39:55,022 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:55,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:55,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:55,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:55,023 INFO L87 Difference]: Start difference. First operand 13362 states and 71207 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:55,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:55,280 INFO L93 Difference]: Finished difference Result 32442 states and 162706 transitions. [2021-06-05 13:39:55,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:55,280 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:55,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:55,384 INFO L225 Difference]: With dead ends: 32442 [2021-06-05 13:39:55,384 INFO L226 Difference]: Without dead ends: 31683 [2021-06-05 13:39:55,384 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 202.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:56,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31683 states. [2021-06-05 13:39:56,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31683 to 13550. [2021-06-05 13:39:56,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13550 states, 13549 states have (on average 5.316333308731272) internal successors, (72031), 13549 states have internal predecessors, (72031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:56,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13550 states to 13550 states and 72031 transitions. [2021-06-05 13:39:56,683 INFO L78 Accepts]: Start accepts. Automaton has 13550 states and 72031 transitions. Word has length 33 [2021-06-05 13:39:56,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:56,683 INFO L482 AbstractCegarLoop]: Abstraction has 13550 states and 72031 transitions. [2021-06-05 13:39:56,683 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:56,683 INFO L276 IsEmpty]: Start isEmpty. Operand 13550 states and 72031 transitions. [2021-06-05 13:39:56,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:56,710 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:56,710 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:56,710 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2021-06-05 13:39:56,710 INFO L430 AbstractCegarLoop]: === Iteration 251 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:56,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:56,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1946618653, now seen corresponding path program 244 times [2021-06-05 13:39:56,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:56,711 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857612337] [2021-06-05 13:39:56,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:56,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:56,875 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:56,875 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857612337] [2021-06-05 13:39:56,875 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857612337] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:56,876 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:56,876 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:56,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629756683] [2021-06-05 13:39:56,876 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:56,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:56,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:56,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:56,876 INFO L87 Difference]: Start difference. First operand 13550 states and 72031 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:57,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:57,110 INFO L93 Difference]: Finished difference Result 32577 states and 163177 transitions. [2021-06-05 13:39:57,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:57,110 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:57,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:57,210 INFO L225 Difference]: With dead ends: 32577 [2021-06-05 13:39:57,210 INFO L226 Difference]: Without dead ends: 31495 [2021-06-05 13:39:57,210 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 175.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:58,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31495 states. [2021-06-05 13:39:58,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31495 to 13362. [2021-06-05 13:39:58,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13362 states, 13361 states have (on average 5.32258064516129) internal successors, (71115), 13361 states have internal predecessors, (71115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:58,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13362 states to 13362 states and 71115 transitions. [2021-06-05 13:39:58,562 INFO L78 Accepts]: Start accepts. Automaton has 13362 states and 71115 transitions. Word has length 33 [2021-06-05 13:39:58,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:58,562 INFO L482 AbstractCegarLoop]: Abstraction has 13362 states and 71115 transitions. [2021-06-05 13:39:58,562 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:58,562 INFO L276 IsEmpty]: Start isEmpty. Operand 13362 states and 71115 transitions. [2021-06-05 13:39:58,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:39:58,589 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:58,590 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:58,590 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2021-06-05 13:39:58,590 INFO L430 AbstractCegarLoop]: === Iteration 252 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:58,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:58,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1298210053, now seen corresponding path program 245 times [2021-06-05 13:39:58,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:58,590 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817782064] [2021-06-05 13:39:58,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:58,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:58,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:58,756 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:58,756 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817782064] [2021-06-05 13:39:58,756 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817782064] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:58,756 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:58,756 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:39:58,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030889255] [2021-06-05 13:39:58,756 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:39:58,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:58,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:39:58,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:39:58,757 INFO L87 Difference]: Start difference. First operand 13362 states and 71115 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:59,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:59,225 INFO L93 Difference]: Finished difference Result 32422 states and 162542 transitions. [2021-06-05 13:39:59,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:39:59,226 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:39:59,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:59,340 INFO L225 Difference]: With dead ends: 32422 [2021-06-05 13:39:59,341 INFO L226 Difference]: Without dead ends: 31671 [2021-06-05 13:39:59,341 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 192.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:00,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31671 states. [2021-06-05 13:40:00,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31671 to 13546. [2021-06-05 13:40:00,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13546 states, 13545 states have (on average 5.310225175341454) internal successors, (71927), 13545 states have internal predecessors, (71927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:00,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13546 states to 13546 states and 71927 transitions. [2021-06-05 13:40:00,411 INFO L78 Accepts]: Start accepts. Automaton has 13546 states and 71927 transitions. Word has length 33 [2021-06-05 13:40:00,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:00,411 INFO L482 AbstractCegarLoop]: Abstraction has 13546 states and 71927 transitions. [2021-06-05 13:40:00,411 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:00,411 INFO L276 IsEmpty]: Start isEmpty. Operand 13546 states and 71927 transitions. [2021-06-05 13:40:00,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:40:00,438 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:00,438 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:00,438 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2021-06-05 13:40:00,438 INFO L430 AbstractCegarLoop]: === Iteration 253 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:00,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:00,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1915733411, now seen corresponding path program 246 times [2021-06-05 13:40:00,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:00,438 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623689501] [2021-06-05 13:40:00,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:00,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:00,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:00,603 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:00,603 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623689501] [2021-06-05 13:40:00,603 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623689501] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:00,603 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:00,603 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:40:00,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020208332] [2021-06-05 13:40:00,603 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:40:00,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:00,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:40:00,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:40:00,604 INFO L87 Difference]: Start difference. First operand 13546 states and 71927 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:00,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:00,982 INFO L93 Difference]: Finished difference Result 32565 states and 163045 transitions. [2021-06-05 13:40:00,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:40:00,982 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:40:00,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:01,080 INFO L225 Difference]: With dead ends: 32565 [2021-06-05 13:40:01,080 INFO L226 Difference]: Without dead ends: 31395 [2021-06-05 13:40:01,081 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 171.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:01,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31395 states. [2021-06-05 13:40:02,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31395 to 13270. [2021-06-05 13:40:02,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13270 states, 13269 states have (on average 5.328886879192102) internal successors, (70709), 13269 states have internal predecessors, (70709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:02,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13270 states to 13270 states and 70709 transitions. [2021-06-05 13:40:02,408 INFO L78 Accepts]: Start accepts. Automaton has 13270 states and 70709 transitions. Word has length 33 [2021-06-05 13:40:02,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:02,408 INFO L482 AbstractCegarLoop]: Abstraction has 13270 states and 70709 transitions. [2021-06-05 13:40:02,408 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:02,408 INFO L276 IsEmpty]: Start isEmpty. Operand 13270 states and 70709 transitions. [2021-06-05 13:40:02,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:40:02,437 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:02,437 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:02,437 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2021-06-05 13:40:02,437 INFO L430 AbstractCegarLoop]: === Iteration 254 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:02,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:02,437 INFO L82 PathProgramCache]: Analyzing trace with hash -272900963, now seen corresponding path program 247 times [2021-06-05 13:40:02,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:02,437 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261947334] [2021-06-05 13:40:02,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:02,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:02,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:02,578 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:02,578 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261947334] [2021-06-05 13:40:02,578 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261947334] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:02,579 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:02,579 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:40:02,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813869719] [2021-06-05 13:40:02,579 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:40:02,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:02,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:40:02,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:40:02,579 INFO L87 Difference]: Start difference. First operand 13270 states and 70709 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:02,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:02,837 INFO L93 Difference]: Finished difference Result 31942 states and 160367 transitions. [2021-06-05 13:40:02,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:40:02,838 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:40:02,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:02,937 INFO L225 Difference]: With dead ends: 31942 [2021-06-05 13:40:02,937 INFO L226 Difference]: Without dead ends: 31183 [2021-06-05 13:40:02,937 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 168.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:03,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31183 states. [2021-06-05 13:40:04,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31183 to 13450. [2021-06-05 13:40:04,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13450 states, 13449 states have (on average 5.319131533943044) internal successors, (71537), 13449 states have internal predecessors, (71537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:04,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13450 states to 13450 states and 71537 transitions. [2021-06-05 13:40:04,248 INFO L78 Accepts]: Start accepts. Automaton has 13450 states and 71537 transitions. Word has length 33 [2021-06-05 13:40:04,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:04,249 INFO L482 AbstractCegarLoop]: Abstraction has 13450 states and 71537 transitions. [2021-06-05 13:40:04,249 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:04,249 INFO L276 IsEmpty]: Start isEmpty. Operand 13450 states and 71537 transitions. [2021-06-05 13:40:04,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:40:04,278 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:04,278 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:04,278 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2021-06-05 13:40:04,279 INFO L430 AbstractCegarLoop]: === Iteration 255 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:04,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:04,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1119697925, now seen corresponding path program 248 times [2021-06-05 13:40:04,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:04,279 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975748428] [2021-06-05 13:40:04,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:04,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:04,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:04,432 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:04,432 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975748428] [2021-06-05 13:40:04,432 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975748428] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:04,433 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:04,433 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:40:04,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001382697] [2021-06-05 13:40:04,433 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:40:04,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:04,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:40:04,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:40:04,433 INFO L87 Difference]: Start difference. First operand 13450 states and 71537 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:04,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:04,681 INFO L93 Difference]: Finished difference Result 31934 states and 160219 transitions. [2021-06-05 13:40:04,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:40:04,681 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:40:04,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:04,791 INFO L225 Difference]: With dead ends: 31934 [2021-06-05 13:40:04,791 INFO L226 Difference]: Without dead ends: 31063 [2021-06-05 13:40:04,791 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 175.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:05,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31063 states. [2021-06-05 13:40:06,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31063 to 13330. [2021-06-05 13:40:06,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13330 states, 13329 states have (on average 5.325605821892115) internal successors, (70985), 13329 states have internal predecessors, (70985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:06,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13330 states to 13330 states and 70985 transitions. [2021-06-05 13:40:06,206 INFO L78 Accepts]: Start accepts. Automaton has 13330 states and 70985 transitions. Word has length 33 [2021-06-05 13:40:06,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:06,206 INFO L482 AbstractCegarLoop]: Abstraction has 13330 states and 70985 transitions. [2021-06-05 13:40:06,206 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:06,206 INFO L276 IsEmpty]: Start isEmpty. Operand 13330 states and 70985 transitions. [2021-06-05 13:40:06,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:40:06,235 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:06,235 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:06,235 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2021-06-05 13:40:06,235 INFO L430 AbstractCegarLoop]: === Iteration 256 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:06,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:06,235 INFO L82 PathProgramCache]: Analyzing trace with hash 2131566907, now seen corresponding path program 249 times [2021-06-05 13:40:06,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:06,235 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561513861] [2021-06-05 13:40:06,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:06,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:06,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:06,382 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:06,382 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561513861] [2021-06-05 13:40:06,382 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561513861] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:06,382 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:06,382 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:40:06,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743681017] [2021-06-05 13:40:06,382 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:40:06,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:06,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:40:06,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:40:06,383 INFO L87 Difference]: Start difference. First operand 13330 states and 70985 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:06,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:06,631 INFO L93 Difference]: Finished difference Result 31960 states and 160368 transitions. [2021-06-05 13:40:06,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:40:06,632 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:40:06,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:06,746 INFO L225 Difference]: With dead ends: 31960 [2021-06-05 13:40:06,746 INFO L226 Difference]: Without dead ends: 31201 [2021-06-05 13:40:06,746 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 172.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:07,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31201 states. [2021-06-05 13:40:08,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31201 to 13454. [2021-06-05 13:40:08,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13454 states, 13453 states have (on average 5.313982011447261) internal successors, (71489), 13453 states have internal predecessors, (71489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:08,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13454 states to 13454 states and 71489 transitions. [2021-06-05 13:40:08,199 INFO L78 Accepts]: Start accepts. Automaton has 13454 states and 71489 transitions. Word has length 33 [2021-06-05 13:40:08,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:08,199 INFO L482 AbstractCegarLoop]: Abstraction has 13454 states and 71489 transitions. [2021-06-05 13:40:08,199 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:08,199 INFO L276 IsEmpty]: Start isEmpty. Operand 13454 states and 71489 transitions. [2021-06-05 13:40:08,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:40:08,229 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:08,229 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:08,229 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2021-06-05 13:40:08,229 INFO L430 AbstractCegarLoop]: === Iteration 257 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:08,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:08,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1737660101, now seen corresponding path program 250 times [2021-06-05 13:40:08,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:08,230 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328125007] [2021-06-05 13:40:08,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:08,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:08,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:08,372 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:08,372 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328125007] [2021-06-05 13:40:08,373 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328125007] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:08,373 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:08,373 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:40:08,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376368134] [2021-06-05 13:40:08,373 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:40:08,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:08,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:40:08,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:40:08,373 INFO L87 Difference]: Start difference. First operand 13454 states and 71489 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:08,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:08,632 INFO L93 Difference]: Finished difference Result 31966 states and 160261 transitions. [2021-06-05 13:40:08,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:40:08,632 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:40:08,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:08,738 INFO L225 Difference]: With dead ends: 31966 [2021-06-05 13:40:08,739 INFO L226 Difference]: Without dead ends: 31077 [2021-06-05 13:40:08,739 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 172.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:09,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31077 states. [2021-06-05 13:40:10,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31077 to 13330. [2021-06-05 13:40:10,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13330 states, 13329 states have (on average 5.321104358916648) internal successors, (70925), 13329 states have internal predecessors, (70925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:10,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13330 states to 13330 states and 70925 transitions. [2021-06-05 13:40:10,119 INFO L78 Accepts]: Start accepts. Automaton has 13330 states and 70925 transitions. Word has length 33 [2021-06-05 13:40:10,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:10,120 INFO L482 AbstractCegarLoop]: Abstraction has 13330 states and 70925 transitions. [2021-06-05 13:40:10,120 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:10,120 INFO L276 IsEmpty]: Start isEmpty. Operand 13330 states and 70925 transitions. [2021-06-05 13:40:10,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:40:10,151 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:10,151 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:10,151 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2021-06-05 13:40:10,151 INFO L430 AbstractCegarLoop]: === Iteration 258 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:10,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:10,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1274818841, now seen corresponding path program 251 times [2021-06-05 13:40:10,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:10,152 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673991527] [2021-06-05 13:40:10,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:10,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:10,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:10,335 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:10,335 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673991527] [2021-06-05 13:40:10,335 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673991527] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:10,335 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:10,335 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:40:10,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577956214] [2021-06-05 13:40:10,336 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:40:10,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:10,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:40:10,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:40:10,336 INFO L87 Difference]: Start difference. First operand 13330 states and 70925 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:10,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:10,780 INFO L93 Difference]: Finished difference Result 31940 states and 160236 transitions. [2021-06-05 13:40:10,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:40:10,780 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:40:10,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:10,885 INFO L225 Difference]: With dead ends: 31940 [2021-06-05 13:40:10,885 INFO L226 Difference]: Without dead ends: 31189 [2021-06-05 13:40:10,885 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 209.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:11,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31189 states. [2021-06-05 13:40:12,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31189 to 13450. [2021-06-05 13:40:12,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13450 states, 13449 states have (on average 5.31020893746747) internal successors, (71417), 13449 states have internal predecessors, (71417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:12,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13450 states to 13450 states and 71417 transitions. [2021-06-05 13:40:12,117 INFO L78 Accepts]: Start accepts. Automaton has 13450 states and 71417 transitions. Word has length 33 [2021-06-05 13:40:12,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:12,117 INFO L482 AbstractCegarLoop]: Abstraction has 13450 states and 71417 transitions. [2021-06-05 13:40:12,117 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:12,117 INFO L276 IsEmpty]: Start isEmpty. Operand 13450 states and 71417 transitions. [2021-06-05 13:40:12,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:40:12,281 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:12,281 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:12,282 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2021-06-05 13:40:12,282 INFO L430 AbstractCegarLoop]: === Iteration 259 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:12,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:12,282 INFO L82 PathProgramCache]: Analyzing trace with hash -35762181, now seen corresponding path program 252 times [2021-06-05 13:40:12,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:12,282 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894272517] [2021-06-05 13:40:12,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:12,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:12,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:12,452 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:12,453 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894272517] [2021-06-05 13:40:12,453 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894272517] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:12,453 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:12,453 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:40:12,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004250785] [2021-06-05 13:40:12,453 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:40:12,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:12,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:40:12,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:40:12,453 INFO L87 Difference]: Start difference. First operand 13450 states and 71417 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:12,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:12,739 INFO L93 Difference]: Finished difference Result 31954 states and 160161 transitions. [2021-06-05 13:40:12,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:40:12,740 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:40:12,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:12,846 INFO L225 Difference]: With dead ends: 31954 [2021-06-05 13:40:12,847 INFO L226 Difference]: Without dead ends: 31009 [2021-06-05 13:40:12,847 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 201.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:13,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31009 states. [2021-06-05 13:40:14,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31009 to 13270. [2021-06-05 13:40:14,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13270 states, 13269 states have (on average 5.32662597030673) internal successors, (70679), 13269 states have internal predecessors, (70679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:14,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13270 states to 13270 states and 70679 transitions. [2021-06-05 13:40:14,242 INFO L78 Accepts]: Start accepts. Automaton has 13270 states and 70679 transitions. Word has length 33 [2021-06-05 13:40:14,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:14,242 INFO L482 AbstractCegarLoop]: Abstraction has 13270 states and 70679 transitions. [2021-06-05 13:40:14,242 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:14,242 INFO L276 IsEmpty]: Start isEmpty. Operand 13270 states and 70679 transitions. [2021-06-05 13:40:14,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:40:14,269 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:14,269 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:14,269 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2021-06-05 13:40:14,269 INFO L430 AbstractCegarLoop]: === Iteration 260 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:14,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:14,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1912748347, now seen corresponding path program 253 times [2021-06-05 13:40:14,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:14,269 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419024393] [2021-06-05 13:40:14,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:14,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:14,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:14,427 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:14,427 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419024393] [2021-06-05 13:40:14,427 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419024393] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:14,427 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:14,427 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:40:14,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080641899] [2021-06-05 13:40:14,427 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:40:14,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:14,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:40:14,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:40:14,427 INFO L87 Difference]: Start difference. First operand 13270 states and 70679 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:14,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:14,699 INFO L93 Difference]: Finished difference Result 32565 states and 163186 transitions. [2021-06-05 13:40:14,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:40:14,699 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:40:14,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:14,802 INFO L225 Difference]: With dead ends: 32565 [2021-06-05 13:40:14,802 INFO L226 Difference]: Without dead ends: 31806 [2021-06-05 13:40:14,802 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 184.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:15,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31806 states. [2021-06-05 13:40:15,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31806 to 13584. [2021-06-05 13:40:16,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13584 states, 13583 states have (on average 5.313111978208054) internal successors, (72168), 13583 states have internal predecessors, (72168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:16,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13584 states to 13584 states and 72168 transitions. [2021-06-05 13:40:16,051 INFO L78 Accepts]: Start accepts. Automaton has 13584 states and 72168 transitions. Word has length 33 [2021-06-05 13:40:16,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:16,051 INFO L482 AbstractCegarLoop]: Abstraction has 13584 states and 72168 transitions. [2021-06-05 13:40:16,051 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:16,051 INFO L276 IsEmpty]: Start isEmpty. Operand 13584 states and 72168 transitions. [2021-06-05 13:40:16,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:40:16,080 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:16,080 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:16,080 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2021-06-05 13:40:16,080 INFO L430 AbstractCegarLoop]: === Iteration 261 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:16,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:16,080 INFO L82 PathProgramCache]: Analyzing trace with hash 5861691, now seen corresponding path program 254 times [2021-06-05 13:40:16,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:16,080 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366678533] [2021-06-05 13:40:16,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:16,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:16,252 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:16,252 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366678533] [2021-06-05 13:40:16,253 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366678533] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:16,253 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:16,253 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:40:16,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277728536] [2021-06-05 13:40:16,253 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:40:16,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:16,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:40:16,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:40:16,253 INFO L87 Difference]: Start difference. First operand 13584 states and 72168 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:16,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:16,500 INFO L93 Difference]: Finished difference Result 32700 states and 163657 transitions. [2021-06-05 13:40:16,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:40:16,500 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:40:16,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:16,602 INFO L225 Difference]: With dead ends: 32700 [2021-06-05 13:40:16,602 INFO L226 Difference]: Without dead ends: 31618 [2021-06-05 13:40:16,602 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 178.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:17,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31618 states. [2021-06-05 13:40:17,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31618 to 13396. [2021-06-05 13:40:17,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13396 states, 13395 states have (on average 5.319148936170213) internal successors, (71250), 13395 states have internal predecessors, (71250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:17,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13396 states to 13396 states and 71250 transitions. [2021-06-05 13:40:17,907 INFO L78 Accepts]: Start accepts. Automaton has 13396 states and 71250 transitions. Word has length 33 [2021-06-05 13:40:17,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:17,908 INFO L482 AbstractCegarLoop]: Abstraction has 13396 states and 71250 transitions. [2021-06-05 13:40:17,908 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:17,908 INFO L276 IsEmpty]: Start isEmpty. Operand 13396 states and 71250 transitions. [2021-06-05 13:40:17,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:40:17,935 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:17,935 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:17,935 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2021-06-05 13:40:17,935 INFO L430 AbstractCegarLoop]: === Iteration 262 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:17,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:17,935 INFO L82 PathProgramCache]: Analyzing trace with hash -672617187, now seen corresponding path program 255 times [2021-06-05 13:40:17,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:17,936 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410310019] [2021-06-05 13:40:17,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:17,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:18,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:18,073 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:18,073 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410310019] [2021-06-05 13:40:18,073 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410310019] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:18,074 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:18,074 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:40:18,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710380554] [2021-06-05 13:40:18,074 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:40:18,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:18,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:40:18,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:40:18,074 INFO L87 Difference]: Start difference. First operand 13396 states and 71250 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:18,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:18,306 INFO L93 Difference]: Finished difference Result 32372 states and 162194 transitions. [2021-06-05 13:40:18,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:40:18,306 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:40:18,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:18,407 INFO L225 Difference]: With dead ends: 32372 [2021-06-05 13:40:18,407 INFO L226 Difference]: Without dead ends: 31613 [2021-06-05 13:40:18,407 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:19,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31613 states. [2021-06-05 13:40:19,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31613 to 13520. [2021-06-05 13:40:19,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13520 states, 13519 states have (on average 5.307641097714328) internal successors, (71754), 13519 states have internal predecessors, (71754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:19,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13520 states to 13520 states and 71754 transitions. [2021-06-05 13:40:19,718 INFO L78 Accepts]: Start accepts. Automaton has 13520 states and 71754 transitions. Word has length 33 [2021-06-05 13:40:19,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:19,718 INFO L482 AbstractCegarLoop]: Abstraction has 13520 states and 71754 transitions. [2021-06-05 13:40:19,719 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:19,719 INFO L276 IsEmpty]: Start isEmpty. Operand 13520 states and 71754 transitions. [2021-06-05 13:40:19,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:40:19,747 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:19,747 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:19,747 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2021-06-05 13:40:19,747 INFO L430 AbstractCegarLoop]: === Iteration 263 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:19,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:19,748 INFO L82 PathProgramCache]: Analyzing trace with hash 2020053307, now seen corresponding path program 256 times [2021-06-05 13:40:19,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:19,748 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981821869] [2021-06-05 13:40:19,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:19,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:19,885 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:19,886 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981821869] [2021-06-05 13:40:19,886 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981821869] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:19,886 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:19,886 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:40:19,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804910907] [2021-06-05 13:40:19,886 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:40:19,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:19,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:40:19,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:40:19,886 INFO L87 Difference]: Start difference. First operand 13520 states and 71754 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:20,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:20,326 INFO L93 Difference]: Finished difference Result 32378 states and 162087 transitions. [2021-06-05 13:40:20,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:40:20,326 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:40:20,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:20,473 INFO L225 Difference]: With dead ends: 32378 [2021-06-05 13:40:20,473 INFO L226 Difference]: Without dead ends: 31489 [2021-06-05 13:40:20,488 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:21,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31489 states. [2021-06-05 13:40:21,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31489 to 13396. [2021-06-05 13:40:21,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13396 states, 13395 states have (on average 5.314520343411721) internal successors, (71188), 13395 states have internal predecessors, (71188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:21,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13396 states to 13396 states and 71188 transitions. [2021-06-05 13:40:21,801 INFO L78 Accepts]: Start accepts. Automaton has 13396 states and 71188 transitions. Word has length 33 [2021-06-05 13:40:21,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:21,801 INFO L482 AbstractCegarLoop]: Abstraction has 13396 states and 71188 transitions. [2021-06-05 13:40:21,801 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:21,801 INFO L276 IsEmpty]: Start isEmpty. Operand 13396 states and 71188 transitions. [2021-06-05 13:40:21,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:40:21,828 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:21,828 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:21,829 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2021-06-05 13:40:21,829 INFO L430 AbstractCegarLoop]: === Iteration 264 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:21,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:21,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1120385339, now seen corresponding path program 257 times [2021-06-05 13:40:21,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:21,829 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592113445] [2021-06-05 13:40:21,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:21,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:22,090 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-06-05 13:40:22,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:22,146 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:22,146 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592113445] [2021-06-05 13:40:22,146 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592113445] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:22,146 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:22,146 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:40:22,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838686740] [2021-06-05 13:40:22,147 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:40:22,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:22,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:40:22,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:40:22,147 INFO L87 Difference]: Start difference. First operand 13396 states and 71188 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:22,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:22,362 INFO L93 Difference]: Finished difference Result 32773 states and 163908 transitions. [2021-06-05 13:40:22,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:40:22,362 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:40:22,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:22,463 INFO L225 Difference]: With dead ends: 32773 [2021-06-05 13:40:22,463 INFO L226 Difference]: Without dead ends: 31879 [2021-06-05 13:40:22,463 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 319.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:23,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31879 states. [2021-06-05 13:40:23,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31879 to 13651. [2021-06-05 13:40:23,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13651 states, 13650 states have (on average 5.29018315018315) internal successors, (72211), 13650 states have internal predecessors, (72211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:23,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13651 states to 13651 states and 72211 transitions. [2021-06-05 13:40:23,771 INFO L78 Accepts]: Start accepts. Automaton has 13651 states and 72211 transitions. Word has length 33 [2021-06-05 13:40:23,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:23,771 INFO L482 AbstractCegarLoop]: Abstraction has 13651 states and 72211 transitions. [2021-06-05 13:40:23,771 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:23,771 INFO L276 IsEmpty]: Start isEmpty. Operand 13651 states and 72211 transitions. [2021-06-05 13:40:23,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:40:23,799 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:23,799 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:23,799 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2021-06-05 13:40:23,799 INFO L430 AbstractCegarLoop]: === Iteration 265 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:23,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:23,800 INFO L82 PathProgramCache]: Analyzing trace with hash 639483293, now seen corresponding path program 258 times [2021-06-05 13:40:23,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:23,800 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981635883] [2021-06-05 13:40:23,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:23,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:23,940 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:23,940 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981635883] [2021-06-05 13:40:23,940 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981635883] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:23,940 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:23,940 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:40:23,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084320030] [2021-06-05 13:40:23,940 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:40:23,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:23,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:40:23,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:40:23,941 INFO L87 Difference]: Start difference. First operand 13651 states and 72211 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:24,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:24,191 INFO L93 Difference]: Finished difference Result 32644 states and 163139 transitions. [2021-06-05 13:40:24,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:40:24,192 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:40:24,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:24,293 INFO L225 Difference]: With dead ends: 32644 [2021-06-05 13:40:24,293 INFO L226 Difference]: Without dead ends: 31498 [2021-06-05 13:40:24,294 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:25,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31498 states. [2021-06-05 13:40:25,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31498 to 13270. [2021-06-05 13:40:25,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13270 states, 13269 states have (on average 5.321953425276961) internal successors, (70617), 13269 states have internal predecessors, (70617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:25,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13270 states to 13270 states and 70617 transitions. [2021-06-05 13:40:25,568 INFO L78 Accepts]: Start accepts. Automaton has 13270 states and 70617 transitions. Word has length 33 [2021-06-05 13:40:25,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:25,568 INFO L482 AbstractCegarLoop]: Abstraction has 13270 states and 70617 transitions. [2021-06-05 13:40:25,568 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:25,568 INFO L276 IsEmpty]: Start isEmpty. Operand 13270 states and 70617 transitions. [2021-06-05 13:40:25,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:40:25,595 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:25,595 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:25,595 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2021-06-05 13:40:25,595 INFO L430 AbstractCegarLoop]: === Iteration 266 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:25,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:25,596 INFO L82 PathProgramCache]: Analyzing trace with hash 82923929, now seen corresponding path program 259 times [2021-06-05 13:40:25,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:25,596 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535277981] [2021-06-05 13:40:25,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:25,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:25,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:25,761 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:25,762 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535277981] [2021-06-05 13:40:25,762 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535277981] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:25,762 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:25,762 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:40:25,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476417074] [2021-06-05 13:40:25,762 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:40:25,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:25,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:40:25,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:40:25,762 INFO L87 Difference]: Start difference. First operand 13270 states and 70617 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:26,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:26,000 INFO L93 Difference]: Finished difference Result 32527 states and 162983 transitions. [2021-06-05 13:40:26,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:40:26,001 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:40:26,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:26,105 INFO L225 Difference]: With dead ends: 32527 [2021-06-05 13:40:26,105 INFO L226 Difference]: Without dead ends: 31776 [2021-06-05 13:40:26,105 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 193.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:27,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31776 states. [2021-06-05 13:40:27,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31776 to 13578. [2021-06-05 13:40:27,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13578 states, 13577 states have (on average 5.309346689253886) internal successors, (72085), 13577 states have internal predecessors, (72085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:27,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13578 states to 13578 states and 72085 transitions. [2021-06-05 13:40:27,456 INFO L78 Accepts]: Start accepts. Automaton has 13578 states and 72085 transitions. Word has length 33 [2021-06-05 13:40:27,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:27,456 INFO L482 AbstractCegarLoop]: Abstraction has 13578 states and 72085 transitions. [2021-06-05 13:40:27,456 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:27,456 INFO L276 IsEmpty]: Start isEmpty. Operand 13578 states and 72085 transitions. [2021-06-05 13:40:27,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:40:27,483 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:27,483 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:27,483 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2021-06-05 13:40:27,484 INFO L430 AbstractCegarLoop]: === Iteration 267 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:27,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:27,484 INFO L82 PathProgramCache]: Analyzing trace with hash -534599429, now seen corresponding path program 260 times [2021-06-05 13:40:27,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:27,484 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911423289] [2021-06-05 13:40:27,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:27,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:27,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:27,654 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:27,654 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911423289] [2021-06-05 13:40:27,654 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911423289] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:27,654 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:27,654 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:40:27,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578567028] [2021-06-05 13:40:27,654 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:40:27,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:27,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:40:27,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:40:27,654 INFO L87 Difference]: Start difference. First operand 13578 states and 72085 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:27,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:27,862 INFO L93 Difference]: Finished difference Result 32670 states and 163486 transitions. [2021-06-05 13:40:27,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:40:27,863 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:40:27,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:27,962 INFO L225 Difference]: With dead ends: 32670 [2021-06-05 13:40:27,963 INFO L226 Difference]: Without dead ends: 31592 [2021-06-05 13:40:27,963 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 175.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:29,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31592 states. [2021-06-05 13:40:29,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31592 to 13394. [2021-06-05 13:40:29,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13394 states, 13393 states have (on average 5.314791308892705) internal successors, (71181), 13393 states have internal predecessors, (71181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:29,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13394 states to 13394 states and 71181 transitions. [2021-06-05 13:40:29,391 INFO L78 Accepts]: Start accepts. Automaton has 13394 states and 71181 transitions. Word has length 33 [2021-06-05 13:40:29,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:29,391 INFO L482 AbstractCegarLoop]: Abstraction has 13394 states and 71181 transitions. [2021-06-05 13:40:29,391 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:29,391 INFO L276 IsEmpty]: Start isEmpty. Operand 13394 states and 71181 transitions. [2021-06-05 13:40:29,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:40:29,418 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:29,418 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:29,419 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2021-06-05 13:40:29,419 INFO L430 AbstractCegarLoop]: === Iteration 268 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:29,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:29,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1792525691, now seen corresponding path program 261 times [2021-06-05 13:40:29,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:29,419 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767778523] [2021-06-05 13:40:29,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:29,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:29,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:29,586 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:29,586 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767778523] [2021-06-05 13:40:29,586 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767778523] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:29,586 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:29,586 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:40:29,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717367478] [2021-06-05 13:40:29,586 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:40:29,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:29,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:40:29,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:40:29,586 INFO L87 Difference]: Start difference. First operand 13394 states and 71181 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:30,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:30,058 INFO L93 Difference]: Finished difference Result 32334 states and 161993 transitions. [2021-06-05 13:40:30,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:40:30,059 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:40:30,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:30,170 INFO L225 Difference]: With dead ends: 32334 [2021-06-05 13:40:30,170 INFO L226 Difference]: Without dead ends: 31583 [2021-06-05 13:40:30,170 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 193.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:30,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31583 states. [2021-06-05 13:40:31,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31583 to 13514. [2021-06-05 13:40:31,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13514 states, 13513 states have (on average 5.304003552134981) internal successors, (71673), 13513 states have internal predecessors, (71673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:31,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13514 states to 13514 states and 71673 transitions. [2021-06-05 13:40:31,358 INFO L78 Accepts]: Start accepts. Automaton has 13514 states and 71673 transitions. Word has length 33 [2021-06-05 13:40:31,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:31,358 INFO L482 AbstractCegarLoop]: Abstraction has 13514 states and 71673 transitions. [2021-06-05 13:40:31,359 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:31,359 INFO L276 IsEmpty]: Start isEmpty. Operand 13514 states and 71673 transitions. [2021-06-05 13:40:31,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:40:31,387 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:31,387 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:31,387 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2021-06-05 13:40:31,387 INFO L430 AbstractCegarLoop]: === Iteration 269 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:31,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:31,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1546092421, now seen corresponding path program 262 times [2021-06-05 13:40:31,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:31,387 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528785851] [2021-06-05 13:40:31,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:31,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:31,566 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:31,566 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528785851] [2021-06-05 13:40:31,566 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528785851] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:31,566 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:31,566 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:40:31,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284646999] [2021-06-05 13:40:31,566 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:40:31,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:31,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:40:31,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:40:31,566 INFO L87 Difference]: Start difference. First operand 13514 states and 71673 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:31,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:31,987 INFO L93 Difference]: Finished difference Result 32348 states and 161918 transitions. [2021-06-05 13:40:31,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:40:31,987 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:40:31,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:32,086 INFO L225 Difference]: With dead ends: 32348 [2021-06-05 13:40:32,086 INFO L226 Difference]: Without dead ends: 31463 [2021-06-05 13:40:32,086 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 206.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:32,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31463 states. [2021-06-05 13:40:33,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31463 to 13394. [2021-06-05 13:40:33,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13394 states, 13393 states have (on average 5.310311356678862) internal successors, (71121), 13393 states have internal predecessors, (71121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:33,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13394 states to 13394 states and 71121 transitions. [2021-06-05 13:40:33,491 INFO L78 Accepts]: Start accepts. Automaton has 13394 states and 71121 transitions. Word has length 33 [2021-06-05 13:40:33,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:33,491 INFO L482 AbstractCegarLoop]: Abstraction has 13394 states and 71121 transitions. [2021-06-05 13:40:33,491 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:33,491 INFO L276 IsEmpty]: Start isEmpty. Operand 13394 states and 71121 transitions. [2021-06-05 13:40:33,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:40:33,518 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:33,518 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:33,518 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2021-06-05 13:40:33,518 INFO L430 AbstractCegarLoop]: === Iteration 270 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:33,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:33,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1577543843, now seen corresponding path program 263 times [2021-06-05 13:40:33,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:33,518 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434715728] [2021-06-05 13:40:33,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:33,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:33,673 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:33,673 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434715728] [2021-06-05 13:40:33,673 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434715728] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:33,673 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:33,673 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:40:33,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870705559] [2021-06-05 13:40:33,673 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:40:33,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:33,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:40:33,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:40:33,674 INFO L87 Difference]: Start difference. First operand 13394 states and 71121 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:33,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:33,921 INFO L93 Difference]: Finished difference Result 32755 states and 163781 transitions. [2021-06-05 13:40:33,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:40:33,921 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:40:33,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:34,024 INFO L225 Difference]: With dead ends: 32755 [2021-06-05 13:40:34,025 INFO L226 Difference]: Without dead ends: 31861 [2021-06-05 13:40:34,025 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 161.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:34,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31861 states. [2021-06-05 13:40:35,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31861 to 13649. [2021-06-05 13:40:35,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13649 states, 13648 states have (on average 5.286049237983588) internal successors, (72144), 13648 states have internal predecessors, (72144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:35,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13649 states to 13649 states and 72144 transitions. [2021-06-05 13:40:35,407 INFO L78 Accepts]: Start accepts. Automaton has 13649 states and 72144 transitions. Word has length 33 [2021-06-05 13:40:35,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:35,408 INFO L482 AbstractCegarLoop]: Abstraction has 13649 states and 72144 transitions. [2021-06-05 13:40:35,408 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:35,408 INFO L276 IsEmpty]: Start isEmpty. Operand 13649 states and 72144 transitions. [2021-06-05 13:40:35,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:40:35,436 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:35,436 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:35,436 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2021-06-05 13:40:35,436 INFO L430 AbstractCegarLoop]: === Iteration 271 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:35,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:35,436 INFO L82 PathProgramCache]: Analyzing trace with hash 694361915, now seen corresponding path program 264 times [2021-06-05 13:40:35,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:35,436 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496843741] [2021-06-05 13:40:35,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:35,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:35,641 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:35,641 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496843741] [2021-06-05 13:40:35,641 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496843741] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:35,642 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:35,642 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:40:35,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086989017] [2021-06-05 13:40:35,642 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:40:35,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:35,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:40:35,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:40:35,642 INFO L87 Difference]: Start difference. First operand 13649 states and 72144 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:35,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:35,883 INFO L93 Difference]: Finished difference Result 32626 states and 163012 transitions. [2021-06-05 13:40:35,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:40:35,884 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:40:35,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:35,991 INFO L225 Difference]: With dead ends: 32626 [2021-06-05 13:40:35,991 INFO L226 Difference]: Without dead ends: 31420 [2021-06-05 13:40:35,992 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 214.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:36,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31420 states. [2021-06-05 13:40:37,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31420 to 13208. [2021-06-05 13:40:37,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13208 states, 13207 states have (on average 5.327856439766791) internal successors, (70365), 13207 states have internal predecessors, (70365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:37,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13208 states to 13208 states and 70365 transitions. [2021-06-05 13:40:37,273 INFO L78 Accepts]: Start accepts. Automaton has 13208 states and 70365 transitions. Word has length 33 [2021-06-05 13:40:37,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:37,273 INFO L482 AbstractCegarLoop]: Abstraction has 13208 states and 70365 transitions. [2021-06-05 13:40:37,273 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:37,273 INFO L276 IsEmpty]: Start isEmpty. Operand 13208 states and 70365 transitions. [2021-06-05 13:40:37,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:40:37,299 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:37,299 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:37,299 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2021-06-05 13:40:37,299 INFO L430 AbstractCegarLoop]: === Iteration 272 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:37,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:37,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1776528261, now seen corresponding path program 265 times [2021-06-05 13:40:37,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:37,300 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211207528] [2021-06-05 13:40:37,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:37,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:37,463 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:37,463 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211207528] [2021-06-05 13:40:37,463 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211207528] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:37,463 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:37,463 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:40:37,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904584111] [2021-06-05 13:40:37,463 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:40:37,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:37,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:40:37,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:40:37,463 INFO L87 Difference]: Start difference. First operand 13208 states and 70365 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:37,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:37,700 INFO L93 Difference]: Finished difference Result 32084 states and 161144 transitions. [2021-06-05 13:40:37,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:40:37,701 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:40:37,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:37,801 INFO L225 Difference]: With dead ends: 32084 [2021-06-05 13:40:37,801 INFO L226 Difference]: Without dead ends: 31325 [2021-06-05 13:40:37,802 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 183.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:38,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31325 states. [2021-06-05 13:40:39,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31325 to 13466. [2021-06-05 13:40:39,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13466 states, 13465 states have (on average 5.321054585963609) internal successors, (71648), 13465 states have internal predecessors, (71648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:39,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13466 states to 13466 states and 71648 transitions. [2021-06-05 13:40:39,135 INFO L78 Accepts]: Start accepts. Automaton has 13466 states and 71648 transitions. Word has length 33 [2021-06-05 13:40:39,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:39,135 INFO L482 AbstractCegarLoop]: Abstraction has 13466 states and 71648 transitions. [2021-06-05 13:40:39,136 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:39,136 INFO L276 IsEmpty]: Start isEmpty. Operand 13466 states and 71648 transitions. [2021-06-05 13:40:39,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:40:39,163 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:39,163 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:39,163 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2021-06-05 13:40:39,163 INFO L430 AbstractCegarLoop]: === Iteration 273 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:39,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:39,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1671642073, now seen corresponding path program 266 times [2021-06-05 13:40:39,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:39,163 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280915430] [2021-06-05 13:40:39,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:39,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:39,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:39,312 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:39,312 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280915430] [2021-06-05 13:40:39,312 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280915430] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:39,312 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:39,312 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:40:39,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095840825] [2021-06-05 13:40:39,312 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:40:39,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:39,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:40:39,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:40:39,313 INFO L87 Difference]: Start difference. First operand 13466 states and 71648 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:39,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:39,558 INFO L93 Difference]: Finished difference Result 32076 states and 160996 transitions. [2021-06-05 13:40:39,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:40:39,558 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:40:39,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:39,918 INFO L225 Difference]: With dead ends: 32076 [2021-06-05 13:40:39,918 INFO L226 Difference]: Without dead ends: 31205 [2021-06-05 13:40:39,918 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 176.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:40,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31205 states. [2021-06-05 13:40:40,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31205 to 13346. [2021-06-05 13:40:40,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13346 states, 13345 states have (on average 5.3275384038965905) internal successors, (71096), 13345 states have internal predecessors, (71096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:41,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13346 states to 13346 states and 71096 transitions. [2021-06-05 13:40:41,038 INFO L78 Accepts]: Start accepts. Automaton has 13346 states and 71096 transitions. Word has length 33 [2021-06-05 13:40:41,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:41,038 INFO L482 AbstractCegarLoop]: Abstraction has 13346 states and 71096 transitions. [2021-06-05 13:40:41,038 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:41,039 INFO L276 IsEmpty]: Start isEmpty. Operand 13346 states and 71096 transitions. [2021-06-05 13:40:41,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:40:41,069 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:41,069 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:41,069 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2021-06-05 13:40:41,069 INFO L430 AbstractCegarLoop]: === Iteration 274 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:41,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:41,070 INFO L82 PathProgramCache]: Analyzing trace with hash -25133957, now seen corresponding path program 267 times [2021-06-05 13:40:41,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:41,070 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687084768] [2021-06-05 13:40:41,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:41,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:41,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:41,240 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:41,240 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687084768] [2021-06-05 13:40:41,240 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687084768] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:41,240 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:41,240 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:40:41,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234983390] [2021-06-05 13:40:41,240 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:40:41,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:41,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:40:41,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:40:41,240 INFO L87 Difference]: Start difference. First operand 13346 states and 71096 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:41,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:41,652 INFO L93 Difference]: Finished difference Result 32295 states and 162043 transitions. [2021-06-05 13:40:41,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:40:41,653 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:40:41,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:41,752 INFO L225 Difference]: With dead ends: 32295 [2021-06-05 13:40:41,752 INFO L226 Difference]: Without dead ends: 31536 [2021-06-05 13:40:41,753 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 196.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:42,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31536 states. [2021-06-05 13:40:42,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31536 to 13534. [2021-06-05 13:40:42,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13534 states, 13533 states have (on average 5.314416611246583) internal successors, (71920), 13533 states have internal predecessors, (71920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:43,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13534 states to 13534 states and 71920 transitions. [2021-06-05 13:40:43,106 INFO L78 Accepts]: Start accepts. Automaton has 13534 states and 71920 transitions. Word has length 33 [2021-06-05 13:40:43,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:43,106 INFO L482 AbstractCegarLoop]: Abstraction has 13534 states and 71920 transitions. [2021-06-05 13:40:43,106 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:43,106 INFO L276 IsEmpty]: Start isEmpty. Operand 13534 states and 71920 transitions. [2021-06-05 13:40:43,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:40:43,139 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:43,139 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:43,139 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2021-06-05 13:40:43,139 INFO L430 AbstractCegarLoop]: === Iteration 275 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:43,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:43,139 INFO L82 PathProgramCache]: Analyzing trace with hash -1932020613, now seen corresponding path program 268 times [2021-06-05 13:40:43,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:43,140 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288070421] [2021-06-05 13:40:43,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:43,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:43,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:43,314 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:43,314 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288070421] [2021-06-05 13:40:43,314 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288070421] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:43,314 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:43,314 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:40:43,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117264641] [2021-06-05 13:40:43,314 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:40:43,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:43,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:40:43,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:40:43,314 INFO L87 Difference]: Start difference. First operand 13534 states and 71920 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:43,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:43,555 INFO L93 Difference]: Finished difference Result 32430 states and 162514 transitions. [2021-06-05 13:40:43,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:40:43,556 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:40:43,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:43,656 INFO L225 Difference]: With dead ends: 32430 [2021-06-05 13:40:43,656 INFO L226 Difference]: Without dead ends: 31348 [2021-06-05 13:40:43,656 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 197.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:44,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31348 states. [2021-06-05 13:40:44,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31348 to 13346. [2021-06-05 13:40:44,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13346 states, 13345 states have (on average 5.320644436118396) internal successors, (71004), 13345 states have internal predecessors, (71004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:44,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13346 states to 13346 states and 71004 transitions. [2021-06-05 13:40:44,963 INFO L78 Accepts]: Start accepts. Automaton has 13346 states and 71004 transitions. Word has length 33 [2021-06-05 13:40:44,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:44,963 INFO L482 AbstractCegarLoop]: Abstraction has 13346 states and 71004 transitions. [2021-06-05 13:40:44,963 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:44,963 INFO L276 IsEmpty]: Start isEmpty. Operand 13346 states and 71004 transitions. [2021-06-05 13:40:44,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:40:44,990 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:44,990 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:44,990 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2021-06-05 13:40:44,990 INFO L430 AbstractCegarLoop]: === Iteration 276 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:44,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:44,990 INFO L82 PathProgramCache]: Analyzing trace with hash -881882023, now seen corresponding path program 269 times [2021-06-05 13:40:44,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:44,990 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414090122] [2021-06-05 13:40:44,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:44,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:45,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:45,163 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:45,163 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414090122] [2021-06-05 13:40:45,163 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414090122] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:45,163 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:45,163 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:40:45,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358879365] [2021-06-05 13:40:45,163 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:40:45,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:45,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:40:45,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:40:45,164 INFO L87 Difference]: Start difference. First operand 13346 states and 71004 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:45,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:45,450 INFO L93 Difference]: Finished difference Result 32275 states and 161879 transitions. [2021-06-05 13:40:45,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:40:45,451 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:40:45,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:45,551 INFO L225 Difference]: With dead ends: 32275 [2021-06-05 13:40:45,551 INFO L226 Difference]: Without dead ends: 31524 [2021-06-05 13:40:45,551 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 199.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:46,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31524 states. [2021-06-05 13:40:46,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31524 to 13530. [2021-06-05 13:40:46,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13530 states, 13529 states have (on average 5.308300687412226) internal successors, (71816), 13529 states have internal predecessors, (71816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:46,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13530 states to 13530 states and 71816 transitions. [2021-06-05 13:40:46,902 INFO L78 Accepts]: Start accepts. Automaton has 13530 states and 71816 transitions. Word has length 33 [2021-06-05 13:40:46,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:46,902 INFO L482 AbstractCegarLoop]: Abstraction has 13530 states and 71816 transitions. [2021-06-05 13:40:46,902 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:46,902 INFO L276 IsEmpty]: Start isEmpty. Operand 13530 states and 71816 transitions. [2021-06-05 13:40:46,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:40:46,930 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:46,930 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:46,930 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2021-06-05 13:40:46,930 INFO L430 AbstractCegarLoop]: === Iteration 277 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:46,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:46,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1499405381, now seen corresponding path program 270 times [2021-06-05 13:40:46,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:46,931 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878296370] [2021-06-05 13:40:46,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:46,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:47,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:47,099 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:47,099 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878296370] [2021-06-05 13:40:47,099 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878296370] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:47,099 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:47,099 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:40:47,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852303843] [2021-06-05 13:40:47,100 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:40:47,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:47,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:40:47,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:40:47,100 INFO L87 Difference]: Start difference. First operand 13530 states and 71816 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:47,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:47,319 INFO L93 Difference]: Finished difference Result 32418 states and 162382 transitions. [2021-06-05 13:40:47,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:40:47,319 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:40:47,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:47,419 INFO L225 Difference]: With dead ends: 32418 [2021-06-05 13:40:47,420 INFO L226 Difference]: Without dead ends: 31248 [2021-06-05 13:40:47,420 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 175.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:48,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31248 states. [2021-06-05 13:40:48,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31248 to 13254. [2021-06-05 13:40:48,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13254 states, 13253 states have (on average 5.32694484267713) internal successors, (70598), 13253 states have internal predecessors, (70598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:48,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13254 states to 13254 states and 70598 transitions. [2021-06-05 13:40:48,763 INFO L78 Accepts]: Start accepts. Automaton has 13254 states and 70598 transitions. Word has length 33 [2021-06-05 13:40:48,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:48,763 INFO L482 AbstractCegarLoop]: Abstraction has 13254 states and 70598 transitions. [2021-06-05 13:40:48,763 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:48,763 INFO L276 IsEmpty]: Start isEmpty. Operand 13254 states and 70598 transitions. [2021-06-05 13:40:48,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:40:48,796 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:48,797 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:48,797 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2021-06-05 13:40:48,797 INFO L430 AbstractCegarLoop]: === Iteration 278 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:48,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:48,797 INFO L82 PathProgramCache]: Analyzing trace with hash -343819107, now seen corresponding path program 271 times [2021-06-05 13:40:48,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:48,797 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417480846] [2021-06-05 13:40:48,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:48,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:48,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:48,954 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:48,954 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417480846] [2021-06-05 13:40:48,954 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417480846] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:48,954 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:48,954 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:40:48,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725553760] [2021-06-05 13:40:48,954 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:40:48,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:48,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:40:48,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:40:48,954 INFO L87 Difference]: Start difference. First operand 13254 states and 70598 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:49,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:49,202 INFO L93 Difference]: Finished difference Result 31793 states and 159699 transitions. [2021-06-05 13:40:49,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:40:49,203 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:40:49,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:49,544 INFO L225 Difference]: With dead ends: 31793 [2021-06-05 13:40:49,544 INFO L226 Difference]: Without dead ends: 31034 [2021-06-05 13:40:49,554 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 177.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:50,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31034 states. [2021-06-05 13:40:50,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31034 to 13434. [2021-06-05 13:40:50,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13434 states, 13433 states have (on average 5.3172039008412115) internal successors, (71426), 13433 states have internal predecessors, (71426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:50,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13434 states to 13434 states and 71426 transitions. [2021-06-05 13:40:50,635 INFO L78 Accepts]: Start accepts. Automaton has 13434 states and 71426 transitions. Word has length 33 [2021-06-05 13:40:50,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:50,635 INFO L482 AbstractCegarLoop]: Abstraction has 13434 states and 71426 transitions. [2021-06-05 13:40:50,635 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:50,635 INFO L276 IsEmpty]: Start isEmpty. Operand 13434 states and 71426 transitions. [2021-06-05 13:40:50,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:40:50,661 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:50,661 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:50,661 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2021-06-05 13:40:50,662 INFO L430 AbstractCegarLoop]: === Iteration 279 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:50,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:50,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1190616069, now seen corresponding path program 272 times [2021-06-05 13:40:50,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:50,662 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377909080] [2021-06-05 13:40:50,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:50,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:50,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:50,798 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:50,798 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377909080] [2021-06-05 13:40:50,798 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377909080] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:50,798 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:50,798 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:40:50,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693687833] [2021-06-05 13:40:50,798 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:40:50,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:50,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:40:50,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:40:50,798 INFO L87 Difference]: Start difference. First operand 13434 states and 71426 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:51,138 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 29 [2021-06-05 13:40:51,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:51,250 INFO L93 Difference]: Finished difference Result 31785 states and 159551 transitions. [2021-06-05 13:40:51,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:40:51,251 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:40:51,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:51,352 INFO L225 Difference]: With dead ends: 31785 [2021-06-05 13:40:51,353 INFO L226 Difference]: Without dead ends: 30914 [2021-06-05 13:40:51,353 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 355.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:52,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30914 states. [2021-06-05 13:40:52,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30914 to 13314. [2021-06-05 13:40:52,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13314 states, 13313 states have (on average 5.323668594606775) internal successors, (70874), 13313 states have internal predecessors, (70874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:52,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13314 states to 13314 states and 70874 transitions. [2021-06-05 13:40:52,700 INFO L78 Accepts]: Start accepts. Automaton has 13314 states and 70874 transitions. Word has length 33 [2021-06-05 13:40:52,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:52,701 INFO L482 AbstractCegarLoop]: Abstraction has 13314 states and 70874 transitions. [2021-06-05 13:40:52,701 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:52,701 INFO L276 IsEmpty]: Start isEmpty. Operand 13314 states and 70874 transitions. [2021-06-05 13:40:52,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:40:52,731 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:52,731 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:52,731 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2021-06-05 13:40:52,731 INFO L430 AbstractCegarLoop]: === Iteration 280 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:52,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:52,732 INFO L82 PathProgramCache]: Analyzing trace with hash 769137083, now seen corresponding path program 273 times [2021-06-05 13:40:52,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:52,732 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167004551] [2021-06-05 13:40:52,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:52,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:52,870 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:52,870 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167004551] [2021-06-05 13:40:52,870 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167004551] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:52,870 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:52,870 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:40:52,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837965947] [2021-06-05 13:40:52,870 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:40:52,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:52,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:40:52,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:40:52,871 INFO L87 Difference]: Start difference. First operand 13314 states and 70874 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:53,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:53,135 INFO L93 Difference]: Finished difference Result 31809 states and 159695 transitions. [2021-06-05 13:40:53,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:40:53,135 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:40:53,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:53,234 INFO L225 Difference]: With dead ends: 31809 [2021-06-05 13:40:53,235 INFO L226 Difference]: Without dead ends: 31050 [2021-06-05 13:40:53,235 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:53,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31050 states. [2021-06-05 13:40:54,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31050 to 13438. [2021-06-05 13:40:54,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13438 states, 13437 states have (on average 5.312048820421225) internal successors, (71378), 13437 states have internal predecessors, (71378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:54,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13438 states to 13438 states and 71378 transitions. [2021-06-05 13:40:54,512 INFO L78 Accepts]: Start accepts. Automaton has 13438 states and 71378 transitions. Word has length 33 [2021-06-05 13:40:54,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:54,512 INFO L482 AbstractCegarLoop]: Abstraction has 13438 states and 71378 transitions. [2021-06-05 13:40:54,513 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:54,513 INFO L276 IsEmpty]: Start isEmpty. Operand 13438 states and 71378 transitions. [2021-06-05 13:40:54,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:40:54,540 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:54,540 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:54,540 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2021-06-05 13:40:54,540 INFO L430 AbstractCegarLoop]: === Iteration 281 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:54,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:54,540 INFO L82 PathProgramCache]: Analyzing trace with hash -767462981, now seen corresponding path program 274 times [2021-06-05 13:40:54,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:54,540 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103951815] [2021-06-05 13:40:54,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:54,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:54,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:54,692 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:54,692 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103951815] [2021-06-05 13:40:54,692 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103951815] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:54,692 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:54,692 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:40:54,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389910163] [2021-06-05 13:40:54,693 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:40:54,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:54,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:40:54,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:40:54,693 INFO L87 Difference]: Start difference. First operand 13438 states and 71378 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:54,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:54,932 INFO L93 Difference]: Finished difference Result 31813 states and 159583 transitions. [2021-06-05 13:40:54,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:40:54,932 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:40:54,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:55,035 INFO L225 Difference]: With dead ends: 31813 [2021-06-05 13:40:55,035 INFO L226 Difference]: Without dead ends: 30926 [2021-06-05 13:40:55,035 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 173.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:55,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30926 states. [2021-06-05 13:40:56,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30926 to 13314. [2021-06-05 13:40:56,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13314 states, 13313 states have (on average 5.319161721625479) internal successors, (70814), 13313 states have internal predecessors, (70814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:56,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13314 states to 13314 states and 70814 transitions. [2021-06-05 13:40:56,296 INFO L78 Accepts]: Start accepts. Automaton has 13314 states and 70814 transitions. Word has length 33 [2021-06-05 13:40:56,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:56,296 INFO L482 AbstractCegarLoop]: Abstraction has 13314 states and 70814 transitions. [2021-06-05 13:40:56,296 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:56,296 INFO L276 IsEmpty]: Start isEmpty. Operand 13314 states and 70814 transitions. [2021-06-05 13:40:56,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:40:56,324 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:56,324 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:56,324 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2021-06-05 13:40:56,324 INFO L430 AbstractCegarLoop]: === Iteration 282 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:56,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:56,324 INFO L82 PathProgramCache]: Analyzing trace with hash -87610983, now seen corresponding path program 275 times [2021-06-05 13:40:56,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:56,324 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798776602] [2021-06-05 13:40:56,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:56,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:56,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:56,461 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:56,462 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798776602] [2021-06-05 13:40:56,462 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798776602] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:56,462 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:56,462 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:40:56,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345244455] [2021-06-05 13:40:56,462 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:40:56,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:56,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:40:56,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:40:56,462 INFO L87 Difference]: Start difference. First operand 13314 states and 70814 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:56,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:56,714 INFO L93 Difference]: Finished difference Result 31789 states and 159563 transitions. [2021-06-05 13:40:56,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:40:56,714 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:40:56,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:56,813 INFO L225 Difference]: With dead ends: 31789 [2021-06-05 13:40:56,814 INFO L226 Difference]: Without dead ends: 31038 [2021-06-05 13:40:56,814 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 164.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:57,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31038 states. [2021-06-05 13:40:58,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31038 to 13434. [2021-06-05 13:40:58,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13434 states, 13433 states have (on average 5.30827067669173) internal successors, (71306), 13433 states have internal predecessors, (71306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:58,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13434 states to 13434 states and 71306 transitions. [2021-06-05 13:40:58,112 INFO L78 Accepts]: Start accepts. Automaton has 13434 states and 71306 transitions. Word has length 33 [2021-06-05 13:40:58,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:58,112 INFO L482 AbstractCegarLoop]: Abstraction has 13434 states and 71306 transitions. [2021-06-05 13:40:58,112 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:58,112 INFO L276 IsEmpty]: Start isEmpty. Operand 13434 states and 71306 transitions. [2021-06-05 13:40:58,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:40:58,140 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:58,140 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:58,140 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2021-06-05 13:40:58,141 INFO L430 AbstractCegarLoop]: === Iteration 283 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:58,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:58,141 INFO L82 PathProgramCache]: Analyzing trace with hash -2091249669, now seen corresponding path program 276 times [2021-06-05 13:40:58,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:58,141 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502203812] [2021-06-05 13:40:58,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:58,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:58,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:58,281 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:58,281 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502203812] [2021-06-05 13:40:58,281 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502203812] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:58,281 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:58,281 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:40:58,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261093352] [2021-06-05 13:40:58,282 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:40:58,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:58,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:40:58,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:40:58,282 INFO L87 Difference]: Start difference. First operand 13434 states and 71306 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:58,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:58,550 INFO L93 Difference]: Finished difference Result 31801 states and 159483 transitions. [2021-06-05 13:40:58,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:40:58,550 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:40:58,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:58,650 INFO L225 Difference]: With dead ends: 31801 [2021-06-05 13:40:58,650 INFO L226 Difference]: Without dead ends: 30858 [2021-06-05 13:40:58,650 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 175.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:59,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30858 states. [2021-06-05 13:40:59,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30858 to 13254. [2021-06-05 13:40:59,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13254 states, 13253 states have (on average 5.32468120425564) internal successors, (70568), 13253 states have internal predecessors, (70568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:59,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13254 states to 13254 states and 70568 transitions. [2021-06-05 13:40:59,976 INFO L78 Accepts]: Start accepts. Automaton has 13254 states and 70568 transitions. Word has length 33 [2021-06-05 13:40:59,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:59,976 INFO L482 AbstractCegarLoop]: Abstraction has 13254 states and 70568 transitions. [2021-06-05 13:40:59,976 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:59,976 INFO L276 IsEmpty]: Start isEmpty. Operand 13254 states and 70568 transitions. [2021-06-05 13:41:00,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:00,003 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:00,003 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:00,003 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2021-06-05 13:41:00,003 INFO L430 AbstractCegarLoop]: === Iteration 284 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:00,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:00,003 INFO L82 PathProgramCache]: Analyzing trace with hash 868753851, now seen corresponding path program 277 times [2021-06-05 13:41:00,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:00,004 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943606139] [2021-06-05 13:41:00,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:00,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:00,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:00,192 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:00,192 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943606139] [2021-06-05 13:41:00,192 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943606139] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:00,192 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:00,192 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:00,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906844033] [2021-06-05 13:41:00,192 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:00,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:00,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:00,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:00,193 INFO L87 Difference]: Start difference. First operand 13254 states and 70568 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:00,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:00,624 INFO L93 Difference]: Finished difference Result 32319 states and 162115 transitions. [2021-06-05 13:41:00,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:00,624 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:00,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:00,720 INFO L225 Difference]: With dead ends: 32319 [2021-06-05 13:41:00,721 INFO L226 Difference]: Without dead ends: 31560 [2021-06-05 13:41:00,721 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 221.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:01,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31560 states. [2021-06-05 13:41:01,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31560 to 13536. [2021-06-05 13:41:01,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13536 states, 13535 states have (on average 5.313114148503879) internal successors, (71913), 13535 states have internal predecessors, (71913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:01,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13536 states to 13536 states and 71913 transitions. [2021-06-05 13:41:01,829 INFO L78 Accepts]: Start accepts. Automaton has 13536 states and 71913 transitions. Word has length 33 [2021-06-05 13:41:01,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:01,829 INFO L482 AbstractCegarLoop]: Abstraction has 13536 states and 71913 transitions. [2021-06-05 13:41:01,829 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:01,829 INFO L276 IsEmpty]: Start isEmpty. Operand 13536 states and 71913 transitions. [2021-06-05 13:41:01,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:01,857 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:01,857 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:01,857 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2021-06-05 13:41:01,857 INFO L430 AbstractCegarLoop]: === Iteration 285 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:01,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:01,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1038132805, now seen corresponding path program 278 times [2021-06-05 13:41:01,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:01,857 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486957029] [2021-06-05 13:41:01,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:01,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:02,011 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2021-06-05 13:41:02,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:02,146 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:02,146 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486957029] [2021-06-05 13:41:02,146 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486957029] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:02,146 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:02,146 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:02,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838901114] [2021-06-05 13:41:02,146 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:02,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:02,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:02,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:02,147 INFO L87 Difference]: Start difference. First operand 13536 states and 71913 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:02,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:02,359 INFO L93 Difference]: Finished difference Result 32454 states and 162586 transitions. [2021-06-05 13:41:02,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:02,359 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:02,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:02,458 INFO L225 Difference]: With dead ends: 32454 [2021-06-05 13:41:02,458 INFO L226 Difference]: Without dead ends: 31372 [2021-06-05 13:41:02,458 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 294.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:03,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31372 states. [2021-06-05 13:41:03,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31372 to 13348. [2021-06-05 13:41:03,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13348 states, 13347 states have (on average 5.319172847830973) internal successors, (70995), 13347 states have internal predecessors, (70995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:03,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13348 states to 13348 states and 70995 transitions. [2021-06-05 13:41:03,709 INFO L78 Accepts]: Start accepts. Automaton has 13348 states and 70995 transitions. Word has length 33 [2021-06-05 13:41:03,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:03,709 INFO L482 AbstractCegarLoop]: Abstraction has 13348 states and 70995 transitions. [2021-06-05 13:41:03,709 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:03,709 INFO L276 IsEmpty]: Start isEmpty. Operand 13348 states and 70995 transitions. [2021-06-05 13:41:03,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:03,736 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:03,736 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:03,736 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2021-06-05 13:41:03,736 INFO L430 AbstractCegarLoop]: === Iteration 286 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:03,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:03,736 INFO L82 PathProgramCache]: Analyzing trace with hash -2025095907, now seen corresponding path program 279 times [2021-06-05 13:41:03,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:03,736 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136641226] [2021-06-05 13:41:03,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:03,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:03,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:03,872 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:03,873 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136641226] [2021-06-05 13:41:03,873 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136641226] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:03,873 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:03,873 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:03,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731387286] [2021-06-05 13:41:03,873 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:03,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:03,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:03,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:03,873 INFO L87 Difference]: Start difference. First operand 13348 states and 70995 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:04,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:04,118 INFO L93 Difference]: Finished difference Result 32124 states and 161118 transitions. [2021-06-05 13:41:04,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:04,118 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:04,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:04,222 INFO L225 Difference]: With dead ends: 32124 [2021-06-05 13:41:04,222 INFO L226 Difference]: Without dead ends: 31365 [2021-06-05 13:41:04,222 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 164.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:04,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31365 states. [2021-06-05 13:41:05,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31365 to 13472. [2021-06-05 13:41:05,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13472 states, 13471 states have (on average 5.307623784425804) internal successors, (71499), 13471 states have internal predecessors, (71499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:05,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13472 states to 13472 states and 71499 transitions. [2021-06-05 13:41:05,513 INFO L78 Accepts]: Start accepts. Automaton has 13472 states and 71499 transitions. Word has length 33 [2021-06-05 13:41:05,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:05,513 INFO L482 AbstractCegarLoop]: Abstraction has 13472 states and 71499 transitions. [2021-06-05 13:41:05,513 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:05,513 INFO L276 IsEmpty]: Start isEmpty. Operand 13472 states and 71499 transitions. [2021-06-05 13:41:05,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:05,543 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:05,543 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:05,543 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2021-06-05 13:41:05,543 INFO L430 AbstractCegarLoop]: === Iteration 287 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:05,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:05,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1304716869, now seen corresponding path program 280 times [2021-06-05 13:41:05,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:05,544 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153263388] [2021-06-05 13:41:05,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:05,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:05,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:05,689 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:05,689 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153263388] [2021-06-05 13:41:05,690 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153263388] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:05,690 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:05,690 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:05,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773676697] [2021-06-05 13:41:05,690 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:05,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:05,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:05,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:05,690 INFO L87 Difference]: Start difference. First operand 13472 states and 71499 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:05,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:05,942 INFO L93 Difference]: Finished difference Result 32128 states and 161006 transitions. [2021-06-05 13:41:05,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:05,943 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:05,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:06,042 INFO L225 Difference]: With dead ends: 32128 [2021-06-05 13:41:06,042 INFO L226 Difference]: Without dead ends: 31241 [2021-06-05 13:41:06,042 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 172.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:07,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31241 states. [2021-06-05 13:41:07,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31241 to 13348. [2021-06-05 13:41:07,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13348 states, 13347 states have (on average 5.314527609200569) internal successors, (70933), 13347 states have internal predecessors, (70933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:07,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13348 states to 13348 states and 70933 transitions. [2021-06-05 13:41:07,409 INFO L78 Accepts]: Start accepts. Automaton has 13348 states and 70933 transitions. Word has length 33 [2021-06-05 13:41:07,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:07,410 INFO L482 AbstractCegarLoop]: Abstraction has 13348 states and 70933 transitions. [2021-06-05 13:41:07,410 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:07,410 INFO L276 IsEmpty]: Start isEmpty. Operand 13348 states and 70933 transitions. [2021-06-05 13:41:07,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:07,437 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:07,437 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:07,437 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2021-06-05 13:41:07,437 INFO L430 AbstractCegarLoop]: === Iteration 288 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:07,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:07,437 INFO L82 PathProgramCache]: Analyzing trace with hash -242044485, now seen corresponding path program 281 times [2021-06-05 13:41:07,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:07,437 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708193491] [2021-06-05 13:41:07,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:07,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:07,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:07,577 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:07,577 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708193491] [2021-06-05 13:41:07,577 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708193491] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:07,577 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:07,577 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:07,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990318472] [2021-06-05 13:41:07,577 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:07,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:07,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:07,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:07,578 INFO L87 Difference]: Start difference. First operand 13348 states and 70933 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:07,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:07,823 INFO L93 Difference]: Finished difference Result 32460 states and 162573 transitions. [2021-06-05 13:41:07,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:07,823 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:07,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:07,927 INFO L225 Difference]: With dead ends: 32460 [2021-06-05 13:41:07,927 INFO L226 Difference]: Without dead ends: 31566 [2021-06-05 13:41:07,927 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 146.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:08,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31566 states. [2021-06-05 13:41:09,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31566 to 13538. [2021-06-05 13:41:09,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13538 states, 13537 states have (on average 5.296446775504173) internal successors, (71698), 13537 states have internal predecessors, (71698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:09,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13538 states to 13538 states and 71698 transitions. [2021-06-05 13:41:09,338 INFO L78 Accepts]: Start accepts. Automaton has 13538 states and 71698 transitions. Word has length 33 [2021-06-05 13:41:09,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:09,338 INFO L482 AbstractCegarLoop]: Abstraction has 13538 states and 71698 transitions. [2021-06-05 13:41:09,338 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:09,339 INFO L276 IsEmpty]: Start isEmpty. Operand 13538 states and 71698 transitions. [2021-06-05 13:41:09,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:09,366 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:09,366 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:09,366 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2021-06-05 13:41:09,366 INFO L430 AbstractCegarLoop]: === Iteration 289 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:09,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:09,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1416004195, now seen corresponding path program 282 times [2021-06-05 13:41:09,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:09,366 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69080881] [2021-06-05 13:41:09,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:09,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:09,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:09,530 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:09,530 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69080881] [2021-06-05 13:41:09,530 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69080881] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:09,530 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:09,530 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:09,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358970398] [2021-06-05 13:41:09,530 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:09,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:09,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:09,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:09,531 INFO L87 Difference]: Start difference. First operand 13538 states and 71698 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:10,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:10,013 INFO L93 Difference]: Finished difference Result 32329 states and 161800 transitions. [2021-06-05 13:41:10,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:10,014 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:10,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:10,125 INFO L225 Difference]: With dead ends: 32329 [2021-06-05 13:41:10,126 INFO L226 Difference]: Without dead ends: 31282 [2021-06-05 13:41:10,126 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 188.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:10,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31282 states. [2021-06-05 13:41:11,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31282 to 13254. [2021-06-05 13:41:11,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13254 states, 13253 states have (on average 5.321210292009356) internal successors, (70522), 13253 states have internal predecessors, (70522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:11,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13254 states to 13254 states and 70522 transitions. [2021-06-05 13:41:11,213 INFO L78 Accepts]: Start accepts. Automaton has 13254 states and 70522 transitions. Word has length 33 [2021-06-05 13:41:11,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:11,213 INFO L482 AbstractCegarLoop]: Abstraction has 13254 states and 70522 transitions. [2021-06-05 13:41:11,213 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:11,213 INFO L276 IsEmpty]: Start isEmpty. Operand 13254 states and 70522 transitions. [2021-06-05 13:41:11,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:11,240 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:11,240 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:11,240 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2021-06-05 13:41:11,240 INFO L430 AbstractCegarLoop]: === Iteration 290 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:11,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:11,240 INFO L82 PathProgramCache]: Analyzing trace with hash -961070567, now seen corresponding path program 283 times [2021-06-05 13:41:11,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:11,241 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703909580] [2021-06-05 13:41:11,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:11,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:11,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:11,394 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:11,394 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703909580] [2021-06-05 13:41:11,394 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703909580] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:11,394 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:11,394 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:11,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806084830] [2021-06-05 13:41:11,395 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:11,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:11,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:11,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:11,395 INFO L87 Difference]: Start difference. First operand 13254 states and 70522 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:11,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:11,795 INFO L93 Difference]: Finished difference Result 32281 states and 161928 transitions. [2021-06-05 13:41:11,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:11,795 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:11,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:11,894 INFO L225 Difference]: With dead ends: 32281 [2021-06-05 13:41:11,894 INFO L226 Difference]: Without dead ends: 31530 [2021-06-05 13:41:11,894 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 177.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:12,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31530 states. [2021-06-05 13:41:12,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31530 to 13530. [2021-06-05 13:41:12,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13530 states, 13529 states have (on average 5.3105181462044495) internal successors, (71846), 13529 states have internal predecessors, (71846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:13,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13530 states to 13530 states and 71846 transitions. [2021-06-05 13:41:13,198 INFO L78 Accepts]: Start accepts. Automaton has 13530 states and 71846 transitions. Word has length 33 [2021-06-05 13:41:13,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:13,199 INFO L482 AbstractCegarLoop]: Abstraction has 13530 states and 71846 transitions. [2021-06-05 13:41:13,199 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:13,199 INFO L276 IsEmpty]: Start isEmpty. Operand 13530 states and 71846 transitions. [2021-06-05 13:41:13,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:13,227 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:13,227 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:13,227 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2021-06-05 13:41:13,227 INFO L430 AbstractCegarLoop]: === Iteration 291 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:13,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:13,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1578593925, now seen corresponding path program 284 times [2021-06-05 13:41:13,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:13,227 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195464108] [2021-06-05 13:41:13,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:13,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:13,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:13,377 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:13,377 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195464108] [2021-06-05 13:41:13,377 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195464108] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:13,377 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:13,377 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:13,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378280665] [2021-06-05 13:41:13,377 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:13,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:13,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:13,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:13,378 INFO L87 Difference]: Start difference. First operand 13530 states and 71846 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:13,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:13,598 INFO L93 Difference]: Finished difference Result 32424 states and 162431 transitions. [2021-06-05 13:41:13,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:13,598 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:13,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:13,696 INFO L225 Difference]: With dead ends: 32424 [2021-06-05 13:41:13,696 INFO L226 Difference]: Without dead ends: 31346 [2021-06-05 13:41:13,697 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 157.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:14,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31346 states. [2021-06-05 13:41:14,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31346 to 13346. [2021-06-05 13:41:14,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13346 states, 13345 states have (on average 5.315998501311353) internal successors, (70942), 13345 states have internal predecessors, (70942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:14,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13346 states to 13346 states and 70942 transitions. [2021-06-05 13:41:14,979 INFO L78 Accepts]: Start accepts. Automaton has 13346 states and 70942 transitions. Word has length 33 [2021-06-05 13:41:14,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:14,979 INFO L482 AbstractCegarLoop]: Abstraction has 13346 states and 70942 transitions. [2021-06-05 13:41:14,979 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:14,980 INFO L276 IsEmpty]: Start isEmpty. Operand 13346 states and 70942 transitions. [2021-06-05 13:41:15,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:15,006 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:15,006 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:15,006 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2021-06-05 13:41:15,006 INFO L430 AbstractCegarLoop]: === Iteration 292 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:15,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:15,007 INFO L82 PathProgramCache]: Analyzing trace with hash 440046971, now seen corresponding path program 285 times [2021-06-05 13:41:15,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:15,007 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077709240] [2021-06-05 13:41:15,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:15,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:15,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:15,142 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:15,142 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077709240] [2021-06-05 13:41:15,142 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077709240] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:15,142 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:15,142 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:15,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425911852] [2021-06-05 13:41:15,142 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:15,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:15,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:15,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:15,142 INFO L87 Difference]: Start difference. First operand 13346 states and 70942 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:15,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:15,379 INFO L93 Difference]: Finished difference Result 32086 states and 160933 transitions. [2021-06-05 13:41:15,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:15,379 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:15,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:15,477 INFO L225 Difference]: With dead ends: 32086 [2021-06-05 13:41:15,477 INFO L226 Difference]: Without dead ends: 31335 [2021-06-05 13:41:15,477 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 162.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:16,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31335 states. [2021-06-05 13:41:16,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31335 to 13466. [2021-06-05 13:41:16,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13466 states, 13465 states have (on average 5.305161529892313) internal successors, (71434), 13465 states have internal predecessors, (71434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:16,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13466 states to 13466 states and 71434 transitions. [2021-06-05 13:41:16,756 INFO L78 Accepts]: Start accepts. Automaton has 13466 states and 71434 transitions. Word has length 33 [2021-06-05 13:41:16,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:16,756 INFO L482 AbstractCegarLoop]: Abstraction has 13466 states and 71434 transitions. [2021-06-05 13:41:16,756 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:16,756 INFO L276 IsEmpty]: Start isEmpty. Operand 13466 states and 71434 transitions. [2021-06-05 13:41:16,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:16,783 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:16,783 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:16,783 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2021-06-05 13:41:16,783 INFO L430 AbstractCegarLoop]: === Iteration 293 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:16,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:16,784 INFO L82 PathProgramCache]: Analyzing trace with hash 693387387, now seen corresponding path program 286 times [2021-06-05 13:41:16,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:16,784 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540484783] [2021-06-05 13:41:16,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:16,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:16,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:16,942 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:16,942 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540484783] [2021-06-05 13:41:16,942 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540484783] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:16,942 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:16,942 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:16,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736448090] [2021-06-05 13:41:16,942 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:16,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:16,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:16,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:16,942 INFO L87 Difference]: Start difference. First operand 13466 states and 71434 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:17,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:17,177 INFO L93 Difference]: Finished difference Result 32098 states and 160853 transitions. [2021-06-05 13:41:17,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:17,178 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:17,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:17,276 INFO L225 Difference]: With dead ends: 32098 [2021-06-05 13:41:17,276 INFO L226 Difference]: Without dead ends: 31215 [2021-06-05 13:41:17,276 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 180.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:18,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31215 states. [2021-06-05 13:41:18,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31215 to 13346. [2021-06-05 13:41:18,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13346 states, 13345 states have (on average 5.311502435369052) internal successors, (70882), 13345 states have internal predecessors, (70882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:18,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13346 states to 13346 states and 70882 transitions. [2021-06-05 13:41:18,555 INFO L78 Accepts]: Start accepts. Automaton has 13346 states and 70882 transitions. Word has length 33 [2021-06-05 13:41:18,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:18,555 INFO L482 AbstractCegarLoop]: Abstraction has 13346 states and 70882 transitions. [2021-06-05 13:41:18,555 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:18,555 INFO L276 IsEmpty]: Start isEmpty. Operand 13346 states and 70882 transitions. [2021-06-05 13:41:18,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:18,582 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:18,582 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:18,582 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2021-06-05 13:41:18,582 INFO L430 AbstractCegarLoop]: === Iteration 294 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:18,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:18,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1364944733, now seen corresponding path program 287 times [2021-06-05 13:41:18,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:18,582 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27560205] [2021-06-05 13:41:18,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:18,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:18,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:18,719 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:18,719 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27560205] [2021-06-05 13:41:18,719 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27560205] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:18,719 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:18,720 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:18,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022898356] [2021-06-05 13:41:18,720 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:18,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:18,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:18,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:18,720 INFO L87 Difference]: Start difference. First operand 13346 states and 70882 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:18,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:18,944 INFO L93 Difference]: Finished difference Result 32442 states and 162462 transitions. [2021-06-05 13:41:18,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:18,944 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:18,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:19,272 INFO L225 Difference]: With dead ends: 32442 [2021-06-05 13:41:19,272 INFO L226 Difference]: Without dead ends: 31548 [2021-06-05 13:41:19,272 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 148.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:20,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31548 states. [2021-06-05 13:41:20,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31548 to 13536. [2021-06-05 13:41:20,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13536 states, 13535 states have (on average 5.293461396379756) internal successors, (71647), 13535 states have internal predecessors, (71647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:20,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13536 states to 13536 states and 71647 transitions. [2021-06-05 13:41:20,345 INFO L78 Accepts]: Start accepts. Automaton has 13536 states and 71647 transitions. Word has length 33 [2021-06-05 13:41:20,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:20,345 INFO L482 AbstractCegarLoop]: Abstraction has 13536 states and 71647 transitions. [2021-06-05 13:41:20,346 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:20,346 INFO L276 IsEmpty]: Start isEmpty. Operand 13536 states and 71647 transitions. [2021-06-05 13:41:20,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:20,372 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:20,372 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:20,372 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2021-06-05 13:41:20,372 INFO L430 AbstractCegarLoop]: === Iteration 295 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:20,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:20,373 INFO L82 PathProgramCache]: Analyzing trace with hash -668067909, now seen corresponding path program 288 times [2021-06-05 13:41:20,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:20,373 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352910373] [2021-06-05 13:41:20,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:20,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:20,511 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:20,511 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352910373] [2021-06-05 13:41:20,511 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352910373] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:20,511 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:20,511 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:20,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843496031] [2021-06-05 13:41:20,511 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:20,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:20,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:20,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:20,512 INFO L87 Difference]: Start difference. First operand 13536 states and 71647 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:20,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:20,993 INFO L93 Difference]: Finished difference Result 32311 states and 161689 transitions. [2021-06-05 13:41:20,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:20,994 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:20,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:21,091 INFO L225 Difference]: With dead ends: 32311 [2021-06-05 13:41:21,092 INFO L226 Difference]: Without dead ends: 31220 [2021-06-05 13:41:21,092 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:21,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31220 states. [2021-06-05 13:41:22,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31220 to 13208. [2021-06-05 13:41:22,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13208 states, 13207 states have (on average 5.326114939047475) internal successors, (70342), 13207 states have internal predecessors, (70342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:22,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13208 states to 13208 states and 70342 transitions. [2021-06-05 13:41:22,169 INFO L78 Accepts]: Start accepts. Automaton has 13208 states and 70342 transitions. Word has length 33 [2021-06-05 13:41:22,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:22,169 INFO L482 AbstractCegarLoop]: Abstraction has 13208 states and 70342 transitions. [2021-06-05 13:41:22,170 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:22,170 INFO L276 IsEmpty]: Start isEmpty. Operand 13208 states and 70342 transitions. [2021-06-05 13:41:22,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:22,345 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:22,345 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:22,345 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2021-06-05 13:41:22,345 INFO L430 AbstractCegarLoop]: === Iteration 296 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:22,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:22,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1116380701, now seen corresponding path program 289 times [2021-06-05 13:41:22,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:22,345 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289084187] [2021-06-05 13:41:22,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:22,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:22,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:22,482 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:22,482 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289084187] [2021-06-05 13:41:22,483 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289084187] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:22,483 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:22,483 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:22,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701497243] [2021-06-05 13:41:22,483 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:22,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:22,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:22,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:22,483 INFO L87 Difference]: Start difference. First operand 13208 states and 70342 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:22,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:22,734 INFO L93 Difference]: Finished difference Result 31362 states and 157565 transitions. [2021-06-05 13:41:22,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:22,734 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:22,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:22,829 INFO L225 Difference]: With dead ends: 31362 [2021-06-05 13:41:22,829 INFO L226 Difference]: Without dead ends: 30603 [2021-06-05 13:41:22,829 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:23,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30603 states. [2021-06-05 13:41:24,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30603 to 13418. [2021-06-05 13:41:24,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13418 states, 13417 states have (on average 5.3181038980398005) internal successors, (71353), 13417 states have internal predecessors, (71353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:24,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13418 states to 13418 states and 71353 transitions. [2021-06-05 13:41:24,066 INFO L78 Accepts]: Start accepts. Automaton has 13418 states and 71353 transitions. Word has length 33 [2021-06-05 13:41:24,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:24,066 INFO L482 AbstractCegarLoop]: Abstraction has 13418 states and 71353 transitions. [2021-06-05 13:41:24,066 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:24,066 INFO L276 IsEmpty]: Start isEmpty. Operand 13418 states and 71353 transitions. [2021-06-05 13:41:24,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:24,093 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:24,093 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:24,093 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2021-06-05 13:41:24,094 INFO L430 AbstractCegarLoop]: === Iteration 297 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:24,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:24,094 INFO L82 PathProgramCache]: Analyzing trace with hash 269583739, now seen corresponding path program 290 times [2021-06-05 13:41:24,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:24,094 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221387080] [2021-06-05 13:41:24,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:24,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:24,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:24,232 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:24,232 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221387080] [2021-06-05 13:41:24,232 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221387080] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:24,232 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:24,232 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:24,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004585524] [2021-06-05 13:41:24,233 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:24,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:24,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:24,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:24,233 INFO L87 Difference]: Start difference. First operand 13418 states and 71353 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:24,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:24,469 INFO L93 Difference]: Finished difference Result 31354 states and 157417 transitions. [2021-06-05 13:41:24,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:24,469 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:24,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:24,563 INFO L225 Difference]: With dead ends: 31354 [2021-06-05 13:41:24,563 INFO L226 Difference]: Without dead ends: 30483 [2021-06-05 13:41:24,564 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:25,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30483 states. [2021-06-05 13:41:25,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30483 to 13298. [2021-06-05 13:41:25,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13298 states, 13297 states have (on average 5.324584492742724) internal successors, (70801), 13297 states have internal predecessors, (70801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:25,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13298 states to 13298 states and 70801 transitions. [2021-06-05 13:41:25,793 INFO L78 Accepts]: Start accepts. Automaton has 13298 states and 70801 transitions. Word has length 33 [2021-06-05 13:41:25,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:25,793 INFO L482 AbstractCegarLoop]: Abstraction has 13298 states and 70801 transitions. [2021-06-05 13:41:25,793 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:25,793 INFO L276 IsEmpty]: Start isEmpty. Operand 13298 states and 70801 transitions. [2021-06-05 13:41:25,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:25,820 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:25,820 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:25,820 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2021-06-05 13:41:25,820 INFO L430 AbstractCegarLoop]: === Iteration 298 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:25,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:25,820 INFO L82 PathProgramCache]: Analyzing trace with hash -774118725, now seen corresponding path program 291 times [2021-06-05 13:41:25,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:25,820 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906400606] [2021-06-05 13:41:25,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:25,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:25,959 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:25,959 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906400606] [2021-06-05 13:41:25,959 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906400606] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:25,959 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:25,959 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:25,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049723628] [2021-06-05 13:41:25,959 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:25,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:25,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:25,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:25,960 INFO L87 Difference]: Start difference. First operand 13298 states and 70801 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:26,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:26,191 INFO L93 Difference]: Finished difference Result 31380 states and 157566 transitions. [2021-06-05 13:41:26,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:26,191 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:26,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:26,286 INFO L225 Difference]: With dead ends: 31380 [2021-06-05 13:41:26,286 INFO L226 Difference]: Without dead ends: 30621 [2021-06-05 13:41:26,287 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 171.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:27,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30621 states. [2021-06-05 13:41:27,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30621 to 13422. [2021-06-05 13:41:27,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13422 states, 13421 states have (on average 5.3129424036957005) internal successors, (71305), 13421 states have internal predecessors, (71305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:27,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13422 states to 13422 states and 71305 transitions. [2021-06-05 13:41:27,604 INFO L78 Accepts]: Start accepts. Automaton has 13422 states and 71305 transitions. Word has length 33 [2021-06-05 13:41:27,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:27,604 INFO L482 AbstractCegarLoop]: Abstraction has 13422 states and 71305 transitions. [2021-06-05 13:41:27,604 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:27,604 INFO L276 IsEmpty]: Start isEmpty. Operand 13422 states and 71305 transitions. [2021-06-05 13:41:27,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:27,632 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:27,632 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:27,632 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2021-06-05 13:41:27,632 INFO L430 AbstractCegarLoop]: === Iteration 299 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:27,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:27,632 INFO L82 PathProgramCache]: Analyzing trace with hash -348378437, now seen corresponding path program 292 times [2021-06-05 13:41:27,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:27,632 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656000717] [2021-06-05 13:41:27,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:27,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:27,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:27,778 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:27,778 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656000717] [2021-06-05 13:41:27,778 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656000717] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:27,778 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:27,778 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:27,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425391639] [2021-06-05 13:41:27,778 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:27,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:27,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:27,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:27,778 INFO L87 Difference]: Start difference. First operand 13422 states and 71305 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:28,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:28,013 INFO L93 Difference]: Finished difference Result 31386 states and 157459 transitions. [2021-06-05 13:41:28,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:28,013 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:28,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:28,114 INFO L225 Difference]: With dead ends: 31386 [2021-06-05 13:41:28,114 INFO L226 Difference]: Without dead ends: 30497 [2021-06-05 13:41:28,114 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 169.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:29,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30497 states. [2021-06-05 13:41:29,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30497 to 13298. [2021-06-05 13:41:29,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13298 states, 13297 states have (on average 5.320072196736106) internal successors, (70741), 13297 states have internal predecessors, (70741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:29,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13298 states to 13298 states and 70741 transitions. [2021-06-05 13:41:29,413 INFO L78 Accepts]: Start accepts. Automaton has 13298 states and 70741 transitions. Word has length 33 [2021-06-05 13:41:29,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:29,413 INFO L482 AbstractCegarLoop]: Abstraction has 13298 states and 70741 transitions. [2021-06-05 13:41:29,413 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:29,413 INFO L276 IsEmpty]: Start isEmpty. Operand 13298 states and 70741 transitions. [2021-06-05 13:41:29,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:29,441 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:29,441 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:29,441 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2021-06-05 13:41:29,441 INFO L430 AbstractCegarLoop]: === Iteration 300 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:29,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:29,441 INFO L82 PathProgramCache]: Analyzing trace with hash -1630866791, now seen corresponding path program 293 times [2021-06-05 13:41:29,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:29,441 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556201615] [2021-06-05 13:41:29,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:29,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:29,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:29,597 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:29,597 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556201615] [2021-06-05 13:41:29,597 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556201615] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:29,597 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:29,597 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:29,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489129217] [2021-06-05 13:41:29,597 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:29,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:29,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:29,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:29,598 INFO L87 Difference]: Start difference. First operand 13298 states and 70741 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:29,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:29,851 INFO L93 Difference]: Finished difference Result 31360 states and 157434 transitions. [2021-06-05 13:41:29,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:29,851 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:29,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:30,177 INFO L225 Difference]: With dead ends: 31360 [2021-06-05 13:41:30,177 INFO L226 Difference]: Without dead ends: 30609 [2021-06-05 13:41:30,177 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 182.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:30,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30609 states. [2021-06-05 13:41:31,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30609 to 13418. [2021-06-05 13:41:31,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13418 states, 13417 states have (on average 5.309160020869046) internal successors, (71233), 13417 states have internal predecessors, (71233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:31,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13418 states to 13418 states and 71233 transitions. [2021-06-05 13:41:31,273 INFO L78 Accepts]: Start accepts. Automaton has 13418 states and 71233 transitions. Word has length 33 [2021-06-05 13:41:31,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:31,273 INFO L482 AbstractCegarLoop]: Abstraction has 13418 states and 71233 transitions. [2021-06-05 13:41:31,273 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:31,273 INFO L276 IsEmpty]: Start isEmpty. Operand 13418 states and 71233 transitions. [2021-06-05 13:41:31,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:31,301 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:31,301 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:31,301 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2021-06-05 13:41:31,301 INFO L430 AbstractCegarLoop]: === Iteration 301 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:31,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:31,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1353519483, now seen corresponding path program 294 times [2021-06-05 13:41:31,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:31,302 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086822647] [2021-06-05 13:41:31,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:31,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:31,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:31,457 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:31,457 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086822647] [2021-06-05 13:41:31,457 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086822647] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:31,457 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:31,457 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:31,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158619884] [2021-06-05 13:41:31,458 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:31,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:31,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:31,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:31,458 INFO L87 Difference]: Start difference. First operand 13418 states and 71233 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:31,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:31,900 INFO L93 Difference]: Finished difference Result 31374 states and 157359 transitions. [2021-06-05 13:41:31,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:31,900 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:31,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:31,998 INFO L225 Difference]: With dead ends: 31374 [2021-06-05 13:41:31,998 INFO L226 Difference]: Without dead ends: 30429 [2021-06-05 13:41:31,998 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 183.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:32,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30429 states. [2021-06-05 13:41:33,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30429 to 13238. [2021-06-05 13:41:33,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13238 states, 13237 states have (on average 5.325602477902848) internal successors, (70495), 13237 states have internal predecessors, (70495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:33,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13238 states to 13238 states and 70495 transitions. [2021-06-05 13:41:33,334 INFO L78 Accepts]: Start accepts. Automaton has 13238 states and 70495 transitions. Word has length 33 [2021-06-05 13:41:33,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:33,335 INFO L482 AbstractCegarLoop]: Abstraction has 13238 states and 70495 transitions. [2021-06-05 13:41:33,335 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:33,335 INFO L276 IsEmpty]: Start isEmpty. Operand 13238 states and 70495 transitions. [2021-06-05 13:41:33,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:33,365 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:33,365 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:33,365 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2021-06-05 13:41:33,365 INFO L430 AbstractCegarLoop]: === Iteration 302 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:33,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:33,365 INFO L82 PathProgramCache]: Analyzing trace with hash 2140276475, now seen corresponding path program 295 times [2021-06-05 13:41:33,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:33,366 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693413834] [2021-06-05 13:41:33,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:33,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:33,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:33,519 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:33,519 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693413834] [2021-06-05 13:41:33,519 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693413834] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:33,519 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:33,519 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:33,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560926293] [2021-06-05 13:41:33,519 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:33,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:33,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:33,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:33,520 INFO L87 Difference]: Start difference. First operand 13238 states and 70495 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:33,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:33,756 INFO L93 Difference]: Finished difference Result 31360 states and 157530 transitions. [2021-06-05 13:41:33,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:33,756 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:33,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:33,855 INFO L225 Difference]: With dead ends: 31360 [2021-06-05 13:41:33,856 INFO L226 Difference]: Without dead ends: 30601 [2021-06-05 13:41:33,856 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 179.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:34,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30601 states. [2021-06-05 13:41:35,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30601 to 13418. [2021-06-05 13:41:35,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13418 states, 13417 states have (on average 5.315867928747112) internal successors, (71323), 13417 states have internal predecessors, (71323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:35,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13418 states to 13418 states and 71323 transitions. [2021-06-05 13:41:35,162 INFO L78 Accepts]: Start accepts. Automaton has 13418 states and 71323 transitions. Word has length 33 [2021-06-05 13:41:35,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:35,162 INFO L482 AbstractCegarLoop]: Abstraction has 13418 states and 71323 transitions. [2021-06-05 13:41:35,163 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:35,163 INFO L276 IsEmpty]: Start isEmpty. Operand 13418 states and 71323 transitions. [2021-06-05 13:41:35,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:35,189 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:35,190 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:35,190 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2021-06-05 13:41:35,190 INFO L430 AbstractCegarLoop]: === Iteration 303 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:35,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:35,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1293479513, now seen corresponding path program 296 times [2021-06-05 13:41:35,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:35,190 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488837158] [2021-06-05 13:41:35,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:35,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:35,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:35,331 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:35,331 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488837158] [2021-06-05 13:41:35,332 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488837158] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:35,332 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:35,332 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:35,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583905758] [2021-06-05 13:41:35,332 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:35,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:35,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:35,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:35,332 INFO L87 Difference]: Start difference. First operand 13418 states and 71323 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:35,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:35,627 INFO L93 Difference]: Finished difference Result 31352 states and 157382 transitions. [2021-06-05 13:41:35,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:35,627 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:35,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:35,746 INFO L225 Difference]: With dead ends: 31352 [2021-06-05 13:41:35,747 INFO L226 Difference]: Without dead ends: 30481 [2021-06-05 13:41:35,747 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 177.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:36,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30481 states. [2021-06-05 13:41:36,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30481 to 13298. [2021-06-05 13:41:37,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13298 states, 13297 states have (on average 5.3223283447394145) internal successors, (70771), 13297 states have internal predecessors, (70771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:37,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13298 states to 13298 states and 70771 transitions. [2021-06-05 13:41:37,065 INFO L78 Accepts]: Start accepts. Automaton has 13298 states and 70771 transitions. Word has length 33 [2021-06-05 13:41:37,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:37,065 INFO L482 AbstractCegarLoop]: Abstraction has 13298 states and 70771 transitions. [2021-06-05 13:41:37,066 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:37,066 INFO L276 IsEmpty]: Start isEmpty. Operand 13298 states and 70771 transitions. [2021-06-05 13:41:37,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:37,095 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:37,095 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:37,095 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2021-06-05 13:41:37,095 INFO L430 AbstractCegarLoop]: === Iteration 304 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:37,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:37,095 INFO L82 PathProgramCache]: Analyzing trace with hash -989729989, now seen corresponding path program 297 times [2021-06-05 13:41:37,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:37,095 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427850181] [2021-06-05 13:41:37,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:37,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:37,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:37,237 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:37,237 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427850181] [2021-06-05 13:41:37,237 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427850181] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:37,237 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:37,237 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:37,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186902634] [2021-06-05 13:41:37,237 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:37,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:37,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:37,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:37,238 INFO L87 Difference]: Start difference. First operand 13298 states and 70771 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:37,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:37,542 INFO L93 Difference]: Finished difference Result 31376 states and 157526 transitions. [2021-06-05 13:41:37,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:37,542 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:37,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:37,662 INFO L225 Difference]: With dead ends: 31376 [2021-06-05 13:41:37,663 INFO L226 Difference]: Without dead ends: 30617 [2021-06-05 13:41:37,663 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 177.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:38,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30617 states. [2021-06-05 13:41:38,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30617 to 13422. [2021-06-05 13:41:38,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13422 states, 13421 states have (on average 5.31070710081216) internal successors, (71275), 13421 states have internal predecessors, (71275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:39,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13422 states to 13422 states and 71275 transitions. [2021-06-05 13:41:39,003 INFO L78 Accepts]: Start accepts. Automaton has 13422 states and 71275 transitions. Word has length 33 [2021-06-05 13:41:39,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:39,003 INFO L482 AbstractCegarLoop]: Abstraction has 13422 states and 71275 transitions. [2021-06-05 13:41:39,003 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:39,003 INFO L276 IsEmpty]: Start isEmpty. Operand 13422 states and 71275 transitions. [2021-06-05 13:41:39,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:39,031 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:39,031 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:39,031 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2021-06-05 13:41:39,031 INFO L430 AbstractCegarLoop]: === Iteration 305 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:39,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:39,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1768637243, now seen corresponding path program 298 times [2021-06-05 13:41:39,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:39,031 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119917127] [2021-06-05 13:41:39,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:39,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:39,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:39,171 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:39,171 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119917127] [2021-06-05 13:41:39,171 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119917127] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:39,171 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:39,171 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:39,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702441171] [2021-06-05 13:41:39,171 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:39,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:39,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:39,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:39,171 INFO L87 Difference]: Start difference. First operand 13422 states and 71275 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:39,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:39,422 INFO L93 Difference]: Finished difference Result 31380 states and 157414 transitions. [2021-06-05 13:41:39,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:39,422 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:39,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:39,517 INFO L225 Difference]: With dead ends: 31380 [2021-06-05 13:41:39,518 INFO L226 Difference]: Without dead ends: 30493 [2021-06-05 13:41:39,518 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 168.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:40,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30493 states. [2021-06-05 13:41:40,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30493 to 13298. [2021-06-05 13:41:40,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13298 states, 13297 states have (on average 5.317816048732797) internal successors, (70711), 13297 states have internal predecessors, (70711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:40,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13298 states to 13298 states and 70711 transitions. [2021-06-05 13:41:40,816 INFO L78 Accepts]: Start accepts. Automaton has 13298 states and 70711 transitions. Word has length 33 [2021-06-05 13:41:40,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:40,816 INFO L482 AbstractCegarLoop]: Abstraction has 13298 states and 70711 transitions. [2021-06-05 13:41:40,816 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:40,816 INFO L276 IsEmpty]: Start isEmpty. Operand 13298 states and 70711 transitions. [2021-06-05 13:41:40,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:40,842 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:40,842 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:40,842 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2021-06-05 13:41:40,842 INFO L430 AbstractCegarLoop]: === Iteration 306 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:40,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:40,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1846478055, now seen corresponding path program 299 times [2021-06-05 13:41:40,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:40,843 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445999444] [2021-06-05 13:41:40,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:40,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:40,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:40,981 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:40,981 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445999444] [2021-06-05 13:41:40,981 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445999444] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:40,981 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:40,981 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:40,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388745866] [2021-06-05 13:41:40,982 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:40,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:40,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:40,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:40,982 INFO L87 Difference]: Start difference. First operand 13298 states and 70711 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:41,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:41,482 INFO L93 Difference]: Finished difference Result 31356 states and 157394 transitions. [2021-06-05 13:41:41,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:41,482 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:41,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:41,583 INFO L225 Difference]: With dead ends: 31356 [2021-06-05 13:41:41,583 INFO L226 Difference]: Without dead ends: 30605 [2021-06-05 13:41:41,583 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:42,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30605 states. [2021-06-05 13:41:42,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30605 to 13418. [2021-06-05 13:41:42,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13418 states, 13417 states have (on average 5.306924051576359) internal successors, (71203), 13417 states have internal predecessors, (71203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:42,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13418 states to 13418 states and 71203 transitions. [2021-06-05 13:41:42,653 INFO L78 Accepts]: Start accepts. Automaton has 13418 states and 71203 transitions. Word has length 33 [2021-06-05 13:41:42,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:42,654 INFO L482 AbstractCegarLoop]: Abstraction has 13418 states and 71203 transitions. [2021-06-05 13:41:42,654 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:42,654 INFO L276 IsEmpty]: Start isEmpty. Operand 13418 states and 71203 transitions. [2021-06-05 13:41:42,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:42,680 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:42,680 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:42,680 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2021-06-05 13:41:42,680 INFO L430 AbstractCegarLoop]: === Iteration 307 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:42,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:42,680 INFO L82 PathProgramCache]: Analyzing trace with hash 444850555, now seen corresponding path program 300 times [2021-06-05 13:41:42,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:42,680 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400771655] [2021-06-05 13:41:42,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:42,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:42,967 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 29 [2021-06-05 13:41:42,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:42,994 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:42,994 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400771655] [2021-06-05 13:41:42,994 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400771655] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:42,994 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:42,994 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:42,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274234329] [2021-06-05 13:41:42,994 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:42,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:42,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:42,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:42,995 INFO L87 Difference]: Start difference. First operand 13418 states and 71203 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:43,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:43,244 INFO L93 Difference]: Finished difference Result 31368 states and 157314 transitions. [2021-06-05 13:41:43,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:43,244 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:43,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:43,339 INFO L225 Difference]: With dead ends: 31368 [2021-06-05 13:41:43,339 INFO L226 Difference]: Without dead ends: 30425 [2021-06-05 13:41:43,339 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 168.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:44,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30425 states. [2021-06-05 13:41:44,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30425 to 13238. [2021-06-05 13:41:44,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13238 states, 13237 states have (on average 5.32333610334668) internal successors, (70465), 13237 states have internal predecessors, (70465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:44,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13238 states to 13238 states and 70465 transitions. [2021-06-05 13:41:44,648 INFO L78 Accepts]: Start accepts. Automaton has 13238 states and 70465 transitions. Word has length 33 [2021-06-05 13:41:44,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:44,648 INFO L482 AbstractCegarLoop]: Abstraction has 13238 states and 70465 transitions. [2021-06-05 13:41:44,648 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:44,648 INFO L276 IsEmpty]: Start isEmpty. Operand 13238 states and 70465 transitions. [2021-06-05 13:41:44,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:44,675 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:44,675 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:44,675 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2021-06-05 13:41:44,675 INFO L430 AbstractCegarLoop]: === Iteration 308 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:44,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:44,675 INFO L82 PathProgramCache]: Analyzing trace with hash -670076839, now seen corresponding path program 301 times [2021-06-05 13:41:44,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:44,675 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404567434] [2021-06-05 13:41:44,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:44,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:44,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:44,813 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:44,813 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404567434] [2021-06-05 13:41:44,814 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404567434] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:44,814 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:44,814 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:44,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896898294] [2021-06-05 13:41:44,814 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:44,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:44,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:44,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:44,814 INFO L87 Difference]: Start difference. First operand 13238 states and 70465 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:45,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:45,056 INFO L93 Difference]: Finished difference Result 31404 states and 157654 transitions. [2021-06-05 13:41:45,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:45,056 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:45,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:45,154 INFO L225 Difference]: With dead ends: 31404 [2021-06-05 13:41:45,155 INFO L226 Difference]: Without dead ends: 30645 [2021-06-05 13:41:45,155 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:45,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30645 states. [2021-06-05 13:41:46,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30645 to 13424. [2021-06-05 13:41:46,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13424 states, 13423 states have (on average 5.312821276912762) internal successors, (71314), 13423 states have internal predecessors, (71314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:46,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13424 states to 13424 states and 71314 transitions. [2021-06-05 13:41:46,413 INFO L78 Accepts]: Start accepts. Automaton has 13424 states and 71314 transitions. Word has length 33 [2021-06-05 13:41:46,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:46,413 INFO L482 AbstractCegarLoop]: Abstraction has 13424 states and 71314 transitions. [2021-06-05 13:41:46,413 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:46,413 INFO L276 IsEmpty]: Start isEmpty. Operand 13424 states and 71314 transitions. [2021-06-05 13:41:46,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:46,440 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:46,440 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:46,440 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2021-06-05 13:41:46,440 INFO L430 AbstractCegarLoop]: === Iteration 309 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:46,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:46,440 INFO L82 PathProgramCache]: Analyzing trace with hash -244336551, now seen corresponding path program 302 times [2021-06-05 13:41:46,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:46,441 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082373321] [2021-06-05 13:41:46,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:46,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:46,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:46,583 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:46,583 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082373321] [2021-06-05 13:41:46,583 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082373321] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:46,583 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:46,583 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:46,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948058806] [2021-06-05 13:41:46,583 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:46,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:46,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:46,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:46,583 INFO L87 Difference]: Start difference. First operand 13424 states and 71314 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:46,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:46,811 INFO L93 Difference]: Finished difference Result 31410 states and 157547 transitions. [2021-06-05 13:41:46,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:46,811 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:46,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:46,906 INFO L225 Difference]: With dead ends: 31410 [2021-06-05 13:41:46,906 INFO L226 Difference]: Without dead ends: 30521 [2021-06-05 13:41:46,907 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 170.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:47,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30521 states. [2021-06-05 13:41:48,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30521 to 13300. [2021-06-05 13:41:48,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13300 states, 13299 states have (on average 5.319798481088804) internal successors, (70748), 13299 states have internal predecessors, (70748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:48,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13300 states to 13300 states and 70748 transitions. [2021-06-05 13:41:48,169 INFO L78 Accepts]: Start accepts. Automaton has 13300 states and 70748 transitions. Word has length 33 [2021-06-05 13:41:48,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:48,169 INFO L482 AbstractCegarLoop]: Abstraction has 13300 states and 70748 transitions. [2021-06-05 13:41:48,169 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:48,169 INFO L276 IsEmpty]: Start isEmpty. Operand 13300 states and 70748 transitions. [2021-06-05 13:41:48,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:48,195 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:48,195 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:48,195 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2021-06-05 13:41:48,195 INFO L430 AbstractCegarLoop]: === Iteration 310 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:48,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:48,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1039524923, now seen corresponding path program 303 times [2021-06-05 13:41:48,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:48,195 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595999949] [2021-06-05 13:41:48,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:48,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:48,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:48,340 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:48,340 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595999949] [2021-06-05 13:41:48,340 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595999949] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:48,340 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:48,340 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:48,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021422724] [2021-06-05 13:41:48,340 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:48,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:48,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:48,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:48,340 INFO L87 Difference]: Start difference. First operand 13300 states and 70748 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:48,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:48,587 INFO L93 Difference]: Finished difference Result 31402 states and 157587 transitions. [2021-06-05 13:41:48,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:48,587 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:48,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:48,683 INFO L225 Difference]: With dead ends: 31402 [2021-06-05 13:41:48,683 INFO L226 Difference]: Without dead ends: 30643 [2021-06-05 13:41:48,683 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 173.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:49,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30643 states. [2021-06-05 13:41:49,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30643 to 13424. [2021-06-05 13:41:49,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13424 states, 13423 states have (on average 5.30820233926842) internal successors, (71252), 13423 states have internal predecessors, (71252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:49,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13424 states to 13424 states and 71252 transitions. [2021-06-05 13:41:49,958 INFO L78 Accepts]: Start accepts. Automaton has 13424 states and 71252 transitions. Word has length 33 [2021-06-05 13:41:49,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:49,959 INFO L482 AbstractCegarLoop]: Abstraction has 13424 states and 71252 transitions. [2021-06-05 13:41:49,959 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:49,959 INFO L276 IsEmpty]: Start isEmpty. Operand 13424 states and 71252 transitions. [2021-06-05 13:41:49,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:49,985 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:49,985 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:49,985 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2021-06-05 13:41:49,985 INFO L430 AbstractCegarLoop]: === Iteration 311 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:49,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:49,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1769855065, now seen corresponding path program 304 times [2021-06-05 13:41:49,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:49,986 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144435788] [2021-06-05 13:41:49,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:50,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:50,126 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:50,126 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144435788] [2021-06-05 13:41:50,126 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144435788] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:50,126 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:50,126 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:50,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907955242] [2021-06-05 13:41:50,126 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:50,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:50,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:50,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:50,127 INFO L87 Difference]: Start difference. First operand 13424 states and 71252 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:50,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:50,371 INFO L93 Difference]: Finished difference Result 31406 states and 157475 transitions. [2021-06-05 13:41:50,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:50,371 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:50,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:50,470 INFO L225 Difference]: With dead ends: 31406 [2021-06-05 13:41:50,470 INFO L226 Difference]: Without dead ends: 30519 [2021-06-05 13:41:50,470 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 169.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:51,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30519 states. [2021-06-05 13:41:51,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30519 to 13300. [2021-06-05 13:41:51,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13300 states, 13299 states have (on average 5.315136476426799) internal successors, (70686), 13299 states have internal predecessors, (70686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:51,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13300 states to 13300 states and 70686 transitions. [2021-06-05 13:41:51,757 INFO L78 Accepts]: Start accepts. Automaton has 13300 states and 70686 transitions. Word has length 33 [2021-06-05 13:41:51,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:51,757 INFO L482 AbstractCegarLoop]: Abstraction has 13300 states and 70686 transitions. [2021-06-05 13:41:51,757 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:51,758 INFO L276 IsEmpty]: Start isEmpty. Operand 13300 states and 70686 transitions. [2021-06-05 13:41:51,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:51,785 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:51,785 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:51,786 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2021-06-05 13:41:51,786 INFO L430 AbstractCegarLoop]: === Iteration 312 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:51,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:51,786 INFO L82 PathProgramCache]: Analyzing trace with hash 551751769, now seen corresponding path program 305 times [2021-06-05 13:41:51,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:51,786 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065931952] [2021-06-05 13:41:51,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:51,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:51,934 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:51,934 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065931952] [2021-06-05 13:41:51,934 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065931952] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:51,934 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:51,934 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:51,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532791947] [2021-06-05 13:41:51,934 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:51,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:51,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:51,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:51,935 INFO L87 Difference]: Start difference. First operand 13300 states and 70686 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:52,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:52,330 INFO L93 Difference]: Finished difference Result 31416 states and 157566 transitions. [2021-06-05 13:41:52,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:52,330 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:52,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:52,425 INFO L225 Difference]: With dead ends: 31416 [2021-06-05 13:41:52,425 INFO L226 Difference]: Without dead ends: 30651 [2021-06-05 13:41:52,425 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 175.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:53,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30651 states. [2021-06-05 13:41:53,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30651 to 13426. [2021-06-05 13:41:53,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13426 states, 13425 states have (on average 5.30316573556797) internal successors, (71195), 13425 states have internal predecessors, (71195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:53,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13426 states to 13426 states and 71195 transitions. [2021-06-05 13:41:53,491 INFO L78 Accepts]: Start accepts. Automaton has 13426 states and 71195 transitions. Word has length 33 [2021-06-05 13:41:53,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:53,492 INFO L482 AbstractCegarLoop]: Abstraction has 13426 states and 71195 transitions. [2021-06-05 13:41:53,492 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:53,492 INFO L276 IsEmpty]: Start isEmpty. Operand 13426 states and 71195 transitions. [2021-06-05 13:41:53,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:53,518 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:53,519 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:53,519 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2021-06-05 13:41:53,519 INFO L430 AbstractCegarLoop]: === Iteration 313 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:53,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:53,519 INFO L82 PathProgramCache]: Analyzing trace with hash 70849723, now seen corresponding path program 306 times [2021-06-05 13:41:53,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:53,519 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456189375] [2021-06-05 13:41:53,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:53,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:53,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:53,795 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:53,795 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456189375] [2021-06-05 13:41:53,795 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456189375] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:53,795 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:53,795 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:53,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878762638] [2021-06-05 13:41:53,795 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:53,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:53,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:53,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:53,795 INFO L87 Difference]: Start difference. First operand 13426 states and 71195 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:54,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:54,050 INFO L93 Difference]: Finished difference Result 31414 states and 157435 transitions. [2021-06-05 13:41:54,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:54,051 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:54,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:54,147 INFO L225 Difference]: With dead ends: 31414 [2021-06-05 13:41:54,147 INFO L226 Difference]: Without dead ends: 30463 [2021-06-05 13:41:54,147 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 170.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:54,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30463 states. [2021-06-05 13:41:55,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30463 to 13238. [2021-06-05 13:41:55,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13238 states, 13237 states have (on average 5.321069728790511) internal successors, (70435), 13237 states have internal predecessors, (70435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:55,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13238 states to 13238 states and 70435 transitions. [2021-06-05 13:41:55,408 INFO L78 Accepts]: Start accepts. Automaton has 13238 states and 70435 transitions. Word has length 33 [2021-06-05 13:41:55,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:55,409 INFO L482 AbstractCegarLoop]: Abstraction has 13238 states and 70435 transitions. [2021-06-05 13:41:55,409 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:55,409 INFO L276 IsEmpty]: Start isEmpty. Operand 13238 states and 70435 transitions. [2021-06-05 13:41:55,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:55,436 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:55,436 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:55,436 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2021-06-05 13:41:55,436 INFO L430 AbstractCegarLoop]: === Iteration 314 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:55,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:55,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1795066039, now seen corresponding path program 307 times [2021-06-05 13:41:55,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:55,437 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939882883] [2021-06-05 13:41:55,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:55,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:55,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:55,598 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:55,598 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939882883] [2021-06-05 13:41:55,598 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939882883] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:55,598 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:55,598 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:55,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120614594] [2021-06-05 13:41:55,598 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:55,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:55,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:55,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:55,599 INFO L87 Difference]: Start difference. First operand 13238 states and 70435 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:55,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:55,836 INFO L93 Difference]: Finished difference Result 31366 states and 157483 transitions. [2021-06-05 13:41:55,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:55,836 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:55,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:55,936 INFO L225 Difference]: With dead ends: 31366 [2021-06-05 13:41:55,936 INFO L226 Difference]: Without dead ends: 30615 [2021-06-05 13:41:55,936 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 189.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:56,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30615 states. [2021-06-05 13:41:57,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30615 to 13418. [2021-06-05 13:41:57,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13418 states, 13417 states have (on average 5.311395990161735) internal successors, (71263), 13417 states have internal predecessors, (71263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:57,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13418 states to 13418 states and 71263 transitions. [2021-06-05 13:41:57,197 INFO L78 Accepts]: Start accepts. Automaton has 13418 states and 71263 transitions. Word has length 33 [2021-06-05 13:41:57,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:57,197 INFO L482 AbstractCegarLoop]: Abstraction has 13418 states and 71263 transitions. [2021-06-05 13:41:57,197 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:57,197 INFO L276 IsEmpty]: Start isEmpty. Operand 13418 states and 71263 transitions. [2021-06-05 13:41:57,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:57,224 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:57,225 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:57,225 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2021-06-05 13:41:57,225 INFO L430 AbstractCegarLoop]: === Iteration 315 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:57,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:57,225 INFO L82 PathProgramCache]: Analyzing trace with hash 484485017, now seen corresponding path program 308 times [2021-06-05 13:41:57,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:57,225 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986198999] [2021-06-05 13:41:57,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:57,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:57,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:57,380 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:57,380 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986198999] [2021-06-05 13:41:57,380 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986198999] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:57,380 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:57,380 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:57,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208765930] [2021-06-05 13:41:57,381 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:57,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:57,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:57,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:57,381 INFO L87 Difference]: Start difference. First operand 13418 states and 71263 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:57,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:57,639 INFO L93 Difference]: Finished difference Result 31380 states and 157408 transitions. [2021-06-05 13:41:57,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:57,640 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:57,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:57,733 INFO L225 Difference]: With dead ends: 31380 [2021-06-05 13:41:57,734 INFO L226 Difference]: Without dead ends: 30495 [2021-06-05 13:41:57,734 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 183.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:58,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30495 states. [2021-06-05 13:41:58,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30495 to 13298. [2021-06-05 13:41:58,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13298 states, 13297 states have (on average 5.317816048732797) internal successors, (70711), 13297 states have internal predecessors, (70711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:59,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13298 states to 13298 states and 70711 transitions. [2021-06-05 13:41:59,019 INFO L78 Accepts]: Start accepts. Automaton has 13298 states and 70711 transitions. Word has length 33 [2021-06-05 13:41:59,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:59,019 INFO L482 AbstractCegarLoop]: Abstraction has 13298 states and 70711 transitions. [2021-06-05 13:41:59,019 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:59,019 INFO L276 IsEmpty]: Start isEmpty. Operand 13298 states and 70711 transitions. [2021-06-05 13:41:59,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:41:59,046 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:59,046 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:59,046 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2021-06-05 13:41:59,046 INFO L430 AbstractCegarLoop]: === Iteration 316 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:59,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:59,047 INFO L82 PathProgramCache]: Analyzing trace with hash -790299495, now seen corresponding path program 309 times [2021-06-05 13:41:59,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:59,047 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144480933] [2021-06-05 13:41:59,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:59,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:59,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:59,185 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:59,185 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144480933] [2021-06-05 13:41:59,185 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144480933] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:59,185 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:59,185 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:41:59,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086267672] [2021-06-05 13:41:59,185 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:41:59,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:59,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:41:59,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:41:59,186 INFO L87 Difference]: Start difference. First operand 13298 states and 70711 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:59,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:59,413 INFO L93 Difference]: Finished difference Result 31364 states and 157418 transitions. [2021-06-05 13:41:59,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:41:59,414 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:41:59,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:59,514 INFO L225 Difference]: With dead ends: 31364 [2021-06-05 13:41:59,515 INFO L226 Difference]: Without dead ends: 30613 [2021-06-05 13:41:59,515 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 167.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:00,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30613 states. [2021-06-05 13:42:00,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30613 to 13418. [2021-06-05 13:42:00,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13418 states, 13417 states have (on average 5.306924051576359) internal successors, (71203), 13417 states have internal predecessors, (71203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:00,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13418 states to 13418 states and 71203 transitions. [2021-06-05 13:42:00,807 INFO L78 Accepts]: Start accepts. Automaton has 13418 states and 71203 transitions. Word has length 33 [2021-06-05 13:42:00,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:00,807 INFO L482 AbstractCegarLoop]: Abstraction has 13418 states and 71203 transitions. [2021-06-05 13:42:00,807 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:00,807 INFO L276 IsEmpty]: Start isEmpty. Operand 13418 states and 71203 transitions. [2021-06-05 13:42:00,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:00,834 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:00,834 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:00,834 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2021-06-05 13:42:00,834 INFO L430 AbstractCegarLoop]: === Iteration 317 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:00,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:00,835 INFO L82 PathProgramCache]: Analyzing trace with hash -527007975, now seen corresponding path program 310 times [2021-06-05 13:42:00,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:00,835 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561644175] [2021-06-05 13:42:00,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:00,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:00,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:00,979 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:00,979 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561644175] [2021-06-05 13:42:00,979 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561644175] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:00,979 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:00,979 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:00,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355487813] [2021-06-05 13:42:00,979 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:00,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:00,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:00,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:00,980 INFO L87 Difference]: Start difference. First operand 13418 states and 71203 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:01,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:01,228 INFO L93 Difference]: Finished difference Result 31376 states and 157338 transitions. [2021-06-05 13:42:01,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:01,228 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:01,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:01,563 INFO L225 Difference]: With dead ends: 31376 [2021-06-05 13:42:01,563 INFO L226 Difference]: Without dead ends: 30493 [2021-06-05 13:42:01,563 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 169.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:02,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30493 states. [2021-06-05 13:42:02,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30493 to 13298. [2021-06-05 13:42:02,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13298 states, 13297 states have (on average 5.313303752726179) internal successors, (70651), 13297 states have internal predecessors, (70651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:02,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13298 states to 13298 states and 70651 transitions. [2021-06-05 13:42:02,632 INFO L78 Accepts]: Start accepts. Automaton has 13298 states and 70651 transitions. Word has length 33 [2021-06-05 13:42:02,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:02,632 INFO L482 AbstractCegarLoop]: Abstraction has 13298 states and 70651 transitions. [2021-06-05 13:42:02,632 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:02,632 INFO L276 IsEmpty]: Start isEmpty. Operand 13298 states and 70651 transitions. [2021-06-05 13:42:02,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:02,659 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:02,659 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:02,659 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2021-06-05 13:42:02,659 INFO L430 AbstractCegarLoop]: === Iteration 318 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:02,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:02,660 INFO L82 PathProgramCache]: Analyzing trace with hash -866943621, now seen corresponding path program 311 times [2021-06-05 13:42:02,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:02,660 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594906491] [2021-06-05 13:42:02,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:02,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:02,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:02,798 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:02,798 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594906491] [2021-06-05 13:42:02,798 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594906491] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:02,798 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:02,798 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:02,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523499970] [2021-06-05 13:42:02,798 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:02,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:02,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:02,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:02,799 INFO L87 Difference]: Start difference. First operand 13298 states and 70651 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:03,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:03,227 INFO L93 Difference]: Finished difference Result 31398 states and 157471 transitions. [2021-06-05 13:42:03,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:03,228 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:03,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:03,328 INFO L225 Difference]: With dead ends: 31398 [2021-06-05 13:42:03,328 INFO L226 Difference]: Without dead ends: 30633 [2021-06-05 13:42:03,328 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:04,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30633 states. [2021-06-05 13:42:04,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30633 to 13424. [2021-06-05 13:42:04,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13424 states, 13423 states have (on average 5.30134843179617) internal successors, (71160), 13423 states have internal predecessors, (71160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:04,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13424 states to 13424 states and 71160 transitions. [2021-06-05 13:42:04,653 INFO L78 Accepts]: Start accepts. Automaton has 13424 states and 71160 transitions. Word has length 33 [2021-06-05 13:42:04,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:04,653 INFO L482 AbstractCegarLoop]: Abstraction has 13424 states and 71160 transitions. [2021-06-05 13:42:04,653 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:04,653 INFO L276 IsEmpty]: Start isEmpty. Operand 13424 states and 71160 transitions. [2021-06-05 13:42:04,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:04,687 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:04,687 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:04,687 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2021-06-05 13:42:04,687 INFO L430 AbstractCegarLoop]: === Iteration 319 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:04,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:04,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1404962137, now seen corresponding path program 312 times [2021-06-05 13:42:04,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:04,688 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936393456] [2021-06-05 13:42:04,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:04,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:04,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:04,829 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:04,829 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936393456] [2021-06-05 13:42:04,829 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936393456] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:04,829 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:04,829 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:04,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896219290] [2021-06-05 13:42:04,829 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:04,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:04,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:04,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:04,829 INFO L87 Difference]: Start difference. First operand 13424 states and 71160 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:05,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:05,094 INFO L93 Difference]: Finished difference Result 31396 states and 157340 transitions. [2021-06-05 13:42:05,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:05,094 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:05,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:05,195 INFO L225 Difference]: With dead ends: 31396 [2021-06-05 13:42:05,195 INFO L226 Difference]: Without dead ends: 30417 [2021-06-05 13:42:05,195 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 168.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:05,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30417 states. [2021-06-05 13:42:06,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30417 to 13208. [2021-06-05 13:42:06,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13208 states, 13207 states have (on average 5.324979177708791) internal successors, (70327), 13207 states have internal predecessors, (70327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:06,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13208 states to 13208 states and 70327 transitions. [2021-06-05 13:42:06,486 INFO L78 Accepts]: Start accepts. Automaton has 13208 states and 70327 transitions. Word has length 33 [2021-06-05 13:42:06,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:06,487 INFO L482 AbstractCegarLoop]: Abstraction has 13208 states and 70327 transitions. [2021-06-05 13:42:06,487 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:06,487 INFO L276 IsEmpty]: Start isEmpty. Operand 13208 states and 70327 transitions. [2021-06-05 13:42:06,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:06,515 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:06,515 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:06,515 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2021-06-05 13:42:06,515 INFO L430 AbstractCegarLoop]: === Iteration 320 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:06,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:06,515 INFO L82 PathProgramCache]: Analyzing trace with hash 890792025, now seen corresponding path program 313 times [2021-06-05 13:42:06,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:06,515 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308128712] [2021-06-05 13:42:06,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:06,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:06,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:06,676 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:06,676 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308128712] [2021-06-05 13:42:06,676 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308128712] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:06,676 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:06,676 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:06,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142222259] [2021-06-05 13:42:06,676 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:06,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:06,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:06,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:06,676 INFO L87 Difference]: Start difference. First operand 13208 states and 70327 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:06,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:06,955 INFO L93 Difference]: Finished difference Result 32665 states and 163555 transitions. [2021-06-05 13:42:06,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:06,956 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:06,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:07,067 INFO L225 Difference]: With dead ends: 32665 [2021-06-05 13:42:07,067 INFO L226 Difference]: Without dead ends: 31906 [2021-06-05 13:42:07,067 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 186.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:08,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31906 states. [2021-06-05 13:42:08,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31906 to 13617. [2021-06-05 13:42:08,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13617 states, 13616 states have (on average 5.309341950646298) internal successors, (72292), 13616 states have internal predecessors, (72292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:08,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13617 states to 13617 states and 72292 transitions. [2021-06-05 13:42:08,373 INFO L78 Accepts]: Start accepts. Automaton has 13617 states and 72292 transitions. Word has length 33 [2021-06-05 13:42:08,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:08,373 INFO L482 AbstractCegarLoop]: Abstraction has 13617 states and 72292 transitions. [2021-06-05 13:42:08,373 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:08,374 INFO L276 IsEmpty]: Start isEmpty. Operand 13617 states and 72292 transitions. [2021-06-05 13:42:08,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:08,401 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:08,401 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:08,401 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2021-06-05 13:42:08,401 INFO L430 AbstractCegarLoop]: === Iteration 321 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:08,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:08,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1016094631, now seen corresponding path program 314 times [2021-06-05 13:42:08,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:08,401 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589181710] [2021-06-05 13:42:08,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:08,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:08,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:08,558 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:08,558 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589181710] [2021-06-05 13:42:08,558 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589181710] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:08,558 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:08,558 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:08,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998735202] [2021-06-05 13:42:08,558 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:08,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:08,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:08,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:08,559 INFO L87 Difference]: Start difference. First operand 13617 states and 72292 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:08,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:08,771 INFO L93 Difference]: Finished difference Result 32800 states and 164026 transitions. [2021-06-05 13:42:08,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:08,771 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:08,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:08,871 INFO L225 Difference]: With dead ends: 32800 [2021-06-05 13:42:08,871 INFO L226 Difference]: Without dead ends: 31718 [2021-06-05 13:42:08,871 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 164.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:09,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31718 states. [2021-06-05 13:42:10,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31718 to 13429. [2021-06-05 13:42:10,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13429 states, 13428 states have (on average 5.315311289842121) internal successors, (71374), 13428 states have internal predecessors, (71374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:10,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13429 states to 13429 states and 71374 transitions. [2021-06-05 13:42:10,128 INFO L78 Accepts]: Start accepts. Automaton has 13429 states and 71374 transitions. Word has length 33 [2021-06-05 13:42:10,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:10,128 INFO L482 AbstractCegarLoop]: Abstraction has 13429 states and 71374 transitions. [2021-06-05 13:42:10,128 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:10,128 INFO L276 IsEmpty]: Start isEmpty. Operand 13429 states and 71374 transitions. [2021-06-05 13:42:10,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:10,155 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:10,155 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:10,155 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2021-06-05 13:42:10,156 INFO L430 AbstractCegarLoop]: === Iteration 322 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:10,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:10,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1694573509, now seen corresponding path program 315 times [2021-06-05 13:42:10,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:10,156 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315881083] [2021-06-05 13:42:10,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:10,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:10,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:10,296 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:10,296 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315881083] [2021-06-05 13:42:10,296 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315881083] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:10,296 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:10,296 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:10,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889613682] [2021-06-05 13:42:10,296 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:10,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:10,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:10,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:10,297 INFO L87 Difference]: Start difference. First operand 13429 states and 71374 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:10,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:10,539 INFO L93 Difference]: Finished difference Result 32472 states and 162563 transitions. [2021-06-05 13:42:10,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:10,540 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:10,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:10,873 INFO L225 Difference]: With dead ends: 32472 [2021-06-05 13:42:10,873 INFO L226 Difference]: Without dead ends: 31713 [2021-06-05 13:42:10,873 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 169.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:11,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31713 states. [2021-06-05 13:42:11,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31713 to 13553. [2021-06-05 13:42:11,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13553 states, 13552 states have (on average 5.303866587957497) internal successors, (71878), 13552 states have internal predecessors, (71878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:11,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13553 states to 13553 states and 71878 transitions. [2021-06-05 13:42:11,966 INFO L78 Accepts]: Start accepts. Automaton has 13553 states and 71878 transitions. Word has length 33 [2021-06-05 13:42:11,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:11,966 INFO L482 AbstractCegarLoop]: Abstraction has 13553 states and 71878 transitions. [2021-06-05 13:42:11,966 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:11,966 INFO L276 IsEmpty]: Start isEmpty. Operand 13553 states and 71878 transitions. [2021-06-05 13:42:11,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:11,994 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:11,994 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:11,994 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2021-06-05 13:42:11,994 INFO L430 AbstractCegarLoop]: === Iteration 323 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:11,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:11,994 INFO L82 PathProgramCache]: Analyzing trace with hash 998096985, now seen corresponding path program 316 times [2021-06-05 13:42:11,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:11,994 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010384364] [2021-06-05 13:42:11,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:11,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:12,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:12,133 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:12,133 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010384364] [2021-06-05 13:42:12,133 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010384364] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:12,133 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:12,133 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:12,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15919199] [2021-06-05 13:42:12,133 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:12,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:12,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:12,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:12,134 INFO L87 Difference]: Start difference. First operand 13553 states and 71878 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:12,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:12,637 INFO L93 Difference]: Finished difference Result 32478 states and 162456 transitions. [2021-06-05 13:42:12,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:12,637 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:12,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:12,739 INFO L225 Difference]: With dead ends: 32478 [2021-06-05 13:42:12,740 INFO L226 Difference]: Without dead ends: 31589 [2021-06-05 13:42:12,740 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 167.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:13,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31589 states. [2021-06-05 13:42:13,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31589 to 13429. [2021-06-05 13:42:13,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13429 states, 13428 states have (on average 5.310694072088174) internal successors, (71312), 13428 states have internal predecessors, (71312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:14,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13429 states to 13429 states and 71312 transitions. [2021-06-05 13:42:14,072 INFO L78 Accepts]: Start accepts. Automaton has 13429 states and 71312 transitions. Word has length 33 [2021-06-05 13:42:14,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:14,072 INFO L482 AbstractCegarLoop]: Abstraction has 13429 states and 71312 transitions. [2021-06-05 13:42:14,072 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:14,072 INFO L276 IsEmpty]: Start isEmpty. Operand 13429 states and 71312 transitions. [2021-06-05 13:42:14,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:14,109 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:14,109 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:14,109 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2021-06-05 13:42:14,109 INFO L430 AbstractCegarLoop]: === Iteration 324 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:14,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:14,109 INFO L82 PathProgramCache]: Analyzing trace with hash 98429017, now seen corresponding path program 317 times [2021-06-05 13:42:14,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:14,109 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254768108] [2021-06-05 13:42:14,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:14,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:14,251 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:14,251 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254768108] [2021-06-05 13:42:14,251 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254768108] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:14,251 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:14,251 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:14,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143716278] [2021-06-05 13:42:14,251 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:14,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:14,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:14,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:14,252 INFO L87 Difference]: Start difference. First operand 13429 states and 71312 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:14,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:14,513 INFO L93 Difference]: Finished difference Result 32873 states and 164277 transitions. [2021-06-05 13:42:14,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:14,513 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:14,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:14,617 INFO L225 Difference]: With dead ends: 32873 [2021-06-05 13:42:14,617 INFO L226 Difference]: Without dead ends: 31979 [2021-06-05 13:42:14,617 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 180.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:15,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31979 states. [2021-06-05 13:42:15,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31979 to 13684. [2021-06-05 13:42:15,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13684 states, 13683 states have (on average 5.286486881531828) internal successors, (72335), 13683 states have internal predecessors, (72335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:15,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13684 states to 13684 states and 72335 transitions. [2021-06-05 13:42:15,902 INFO L78 Accepts]: Start accepts. Automaton has 13684 states and 72335 transitions. Word has length 33 [2021-06-05 13:42:15,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:15,902 INFO L482 AbstractCegarLoop]: Abstraction has 13684 states and 72335 transitions. [2021-06-05 13:42:15,902 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:15,902 INFO L276 IsEmpty]: Start isEmpty. Operand 13684 states and 72335 transitions. [2021-06-05 13:42:15,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:15,929 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:15,929 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:15,929 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2021-06-05 13:42:15,930 INFO L430 AbstractCegarLoop]: === Iteration 325 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:15,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:15,930 INFO L82 PathProgramCache]: Analyzing trace with hash -382473029, now seen corresponding path program 318 times [2021-06-05 13:42:15,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:15,930 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793727026] [2021-06-05 13:42:15,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:15,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:16,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:16,071 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:16,071 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793727026] [2021-06-05 13:42:16,071 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793727026] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:16,071 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:16,071 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:16,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227062200] [2021-06-05 13:42:16,071 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:16,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:16,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:16,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:16,071 INFO L87 Difference]: Start difference. First operand 13684 states and 72335 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:16,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:16,311 INFO L93 Difference]: Finished difference Result 32744 states and 163508 transitions. [2021-06-05 13:42:16,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:16,311 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:16,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:16,412 INFO L225 Difference]: With dead ends: 32744 [2021-06-05 13:42:16,412 INFO L226 Difference]: Without dead ends: 31598 [2021-06-05 13:42:16,412 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 164.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:17,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31598 states. [2021-06-05 13:42:17,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31598 to 13303. [2021-06-05 13:42:17,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13303 states, 13302 states have (on average 5.317997293640054) internal successors, (70740), 13302 states have internal predecessors, (70740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:17,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13303 states to 13303 states and 70740 transitions. [2021-06-05 13:42:17,933 INFO L78 Accepts]: Start accepts. Automaton has 13303 states and 70740 transitions. Word has length 33 [2021-06-05 13:42:17,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:17,933 INFO L482 AbstractCegarLoop]: Abstraction has 13303 states and 70740 transitions. [2021-06-05 13:42:17,933 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:17,933 INFO L276 IsEmpty]: Start isEmpty. Operand 13303 states and 70740 transitions. [2021-06-05 13:42:17,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:17,965 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:17,965 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:17,965 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2021-06-05 13:42:17,965 INFO L430 AbstractCegarLoop]: === Iteration 326 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:17,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:17,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1154389061, now seen corresponding path program 319 times [2021-06-05 13:42:17,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:17,966 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007446378] [2021-06-05 13:42:17,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:17,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:18,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:18,162 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:18,162 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007446378] [2021-06-05 13:42:18,162 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007446378] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:18,162 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:18,162 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:18,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451935381] [2021-06-05 13:42:18,163 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:18,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:18,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:18,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:18,163 INFO L87 Difference]: Start difference. First operand 13303 states and 70740 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:18,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:18,444 INFO L93 Difference]: Finished difference Result 32566 states and 163084 transitions. [2021-06-05 13:42:18,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:18,444 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:18,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:18,537 INFO L225 Difference]: With dead ends: 32566 [2021-06-05 13:42:18,537 INFO L226 Difference]: Without dead ends: 31807 [2021-06-05 13:42:18,537 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 219.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:19,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31807 states. [2021-06-05 13:42:19,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31807 to 13585. [2021-06-05 13:42:19,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13585 states, 13584 states have (on average 5.306610718492344) internal successors, (72085), 13584 states have internal predecessors, (72085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:19,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13585 states to 13585 states and 72085 transitions. [2021-06-05 13:42:19,838 INFO L78 Accepts]: Start accepts. Automaton has 13585 states and 72085 transitions. Word has length 33 [2021-06-05 13:42:19,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:19,838 INFO L482 AbstractCegarLoop]: Abstraction has 13585 states and 72085 transitions. [2021-06-05 13:42:19,838 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:19,838 INFO L276 IsEmpty]: Start isEmpty. Operand 13585 states and 72085 transitions. [2021-06-05 13:42:19,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:19,866 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:19,867 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:19,867 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2021-06-05 13:42:19,867 INFO L430 AbstractCegarLoop]: === Iteration 327 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:19,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:19,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1233691579, now seen corresponding path program 320 times [2021-06-05 13:42:19,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:19,867 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417969841] [2021-06-05 13:42:19,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:19,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:20,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:20,027 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:20,027 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417969841] [2021-06-05 13:42:20,027 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417969841] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:20,027 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:20,027 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:20,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276685224] [2021-06-05 13:42:20,027 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:20,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:20,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:20,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:20,028 INFO L87 Difference]: Start difference. First operand 13585 states and 72085 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:20,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:20,229 INFO L93 Difference]: Finished difference Result 32701 states and 163555 transitions. [2021-06-05 13:42:20,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:20,229 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:20,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:20,578 INFO L225 Difference]: With dead ends: 32701 [2021-06-05 13:42:20,578 INFO L226 Difference]: Without dead ends: 31619 [2021-06-05 13:42:20,578 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:21,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31619 states. [2021-06-05 13:42:21,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31619 to 13397. [2021-06-05 13:42:21,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13397 states, 13396 states have (on average 5.312555986861749) internal successors, (71167), 13396 states have internal predecessors, (71167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:21,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13397 states to 13397 states and 71167 transitions. [2021-06-05 13:42:21,639 INFO L78 Accepts]: Start accepts. Automaton has 13397 states and 71167 transitions. Word has length 33 [2021-06-05 13:42:21,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:21,639 INFO L482 AbstractCegarLoop]: Abstraction has 13397 states and 71167 transitions. [2021-06-05 13:42:21,639 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:21,639 INFO L276 IsEmpty]: Start isEmpty. Operand 13397 states and 71167 transitions. [2021-06-05 13:42:21,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:21,666 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:21,666 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:21,666 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326 [2021-06-05 13:42:21,666 INFO L430 AbstractCegarLoop]: === Iteration 328 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:21,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:21,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1218237371, now seen corresponding path program 321 times [2021-06-05 13:42:21,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:21,667 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867923318] [2021-06-05 13:42:21,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:21,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:21,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:21,803 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:21,803 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867923318] [2021-06-05 13:42:21,803 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867923318] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:21,803 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:21,803 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:21,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673564018] [2021-06-05 13:42:21,803 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:21,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:21,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:21,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:21,804 INFO L87 Difference]: Start difference. First operand 13397 states and 71167 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:22,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:22,268 INFO L93 Difference]: Finished difference Result 32371 states and 162087 transitions. [2021-06-05 13:42:22,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:22,269 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:22,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:22,365 INFO L225 Difference]: With dead ends: 32371 [2021-06-05 13:42:22,365 INFO L226 Difference]: Without dead ends: 31612 [2021-06-05 13:42:22,365 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 164.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:23,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31612 states. [2021-06-05 13:42:23,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31612 to 13521. [2021-06-05 13:42:23,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13521 states, 13520 states have (on average 5.301109467455621) internal successors, (71671), 13520 states have internal predecessors, (71671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:23,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13521 states to 13521 states and 71671 transitions. [2021-06-05 13:42:23,678 INFO L78 Accepts]: Start accepts. Automaton has 13521 states and 71671 transitions. Word has length 33 [2021-06-05 13:42:23,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:23,678 INFO L482 AbstractCegarLoop]: Abstraction has 13521 states and 71671 transitions. [2021-06-05 13:42:23,678 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:23,678 INFO L276 IsEmpty]: Start isEmpty. Operand 13521 states and 71671 transitions. [2021-06-05 13:42:23,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:23,715 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:23,716 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:23,716 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2021-06-05 13:42:23,716 INFO L430 AbstractCegarLoop]: === Iteration 329 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:23,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:23,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1938616409, now seen corresponding path program 322 times [2021-06-05 13:42:23,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:23,716 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221056604] [2021-06-05 13:42:23,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:23,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:23,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:23,856 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:23,856 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221056604] [2021-06-05 13:42:23,856 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221056604] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:23,856 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:23,856 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:23,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011482491] [2021-06-05 13:42:23,856 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:23,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:23,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:23,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:23,857 INFO L87 Difference]: Start difference. First operand 13521 states and 71671 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:24,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:24,083 INFO L93 Difference]: Finished difference Result 32375 states and 161975 transitions. [2021-06-05 13:42:24,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:24,083 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:24,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:24,173 INFO L225 Difference]: With dead ends: 32375 [2021-06-05 13:42:24,174 INFO L226 Difference]: Without dead ends: 31488 [2021-06-05 13:42:24,174 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 169.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:24,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31488 states. [2021-06-05 13:42:25,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31488 to 13397. [2021-06-05 13:42:25,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13397 states, 13396 states have (on average 5.307927739623768) internal successors, (71105), 13396 states have internal predecessors, (71105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:25,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13397 states to 13397 states and 71105 transitions. [2021-06-05 13:42:25,446 INFO L78 Accepts]: Start accepts. Automaton has 13397 states and 71105 transitions. Word has length 33 [2021-06-05 13:42:25,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:25,446 INFO L482 AbstractCegarLoop]: Abstraction has 13397 states and 71105 transitions. [2021-06-05 13:42:25,446 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:25,446 INFO L276 IsEmpty]: Start isEmpty. Operand 13397 states and 71105 transitions. [2021-06-05 13:42:25,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:25,471 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:25,471 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:25,472 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2021-06-05 13:42:25,472 INFO L430 AbstractCegarLoop]: === Iteration 330 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:25,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:25,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1293678503, now seen corresponding path program 323 times [2021-06-05 13:42:25,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:25,472 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677950308] [2021-06-05 13:42:25,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:25,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:25,620 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:25,620 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677950308] [2021-06-05 13:42:25,621 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677950308] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:25,621 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:25,621 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:25,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401425723] [2021-06-05 13:42:25,621 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:25,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:25,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:25,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:25,621 INFO L87 Difference]: Start difference. First operand 13397 states and 71105 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:25,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:25,840 INFO L93 Difference]: Finished difference Result 32707 states and 163542 transitions. [2021-06-05 13:42:25,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:25,840 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:25,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:25,932 INFO L225 Difference]: With dead ends: 32707 [2021-06-05 13:42:25,933 INFO L226 Difference]: Without dead ends: 31813 [2021-06-05 13:42:25,933 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 156.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:26,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31813 states. [2021-06-05 13:42:27,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31813 to 13587. [2021-06-05 13:42:27,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13587 states, 13586 states have (on average 5.290004416310908) internal successors, (71870), 13586 states have internal predecessors, (71870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:27,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13587 states to 13587 states and 71870 transitions. [2021-06-05 13:42:27,149 INFO L78 Accepts]: Start accepts. Automaton has 13587 states and 71870 transitions. Word has length 33 [2021-06-05 13:42:27,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:27,149 INFO L482 AbstractCegarLoop]: Abstraction has 13587 states and 71870 transitions. [2021-06-05 13:42:27,149 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:27,149 INFO L276 IsEmpty]: Start isEmpty. Operand 13587 states and 71870 transitions. [2021-06-05 13:42:27,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:27,177 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:27,177 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:27,177 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2021-06-05 13:42:27,177 INFO L430 AbstractCegarLoop]: === Iteration 331 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:27,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:27,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1827329083, now seen corresponding path program 324 times [2021-06-05 13:42:27,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:27,177 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644737293] [2021-06-05 13:42:27,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:27,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:27,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:27,317 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:27,317 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644737293] [2021-06-05 13:42:27,317 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644737293] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:27,317 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:27,317 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:27,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794828398] [2021-06-05 13:42:27,318 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:27,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:27,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:27,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:27,318 INFO L87 Difference]: Start difference. First operand 13587 states and 71870 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:27,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:27,550 INFO L93 Difference]: Finished difference Result 32576 states and 162769 transitions. [2021-06-05 13:42:27,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:27,550 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:27,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:27,649 INFO L225 Difference]: With dead ends: 32576 [2021-06-05 13:42:27,649 INFO L226 Difference]: Without dead ends: 31529 [2021-06-05 13:42:27,649 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 169.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:28,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31529 states. [2021-06-05 13:42:28,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31529 to 13303. [2021-06-05 13:42:28,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13303 states, 13302 states have (on average 5.314463990377387) internal successors, (70693), 13302 states have internal predecessors, (70693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:28,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13303 states to 13303 states and 70693 transitions. [2021-06-05 13:42:28,919 INFO L78 Accepts]: Start accepts. Automaton has 13303 states and 70693 transitions. Word has length 33 [2021-06-05 13:42:28,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:28,919 INFO L482 AbstractCegarLoop]: Abstraction has 13303 states and 70693 transitions. [2021-06-05 13:42:28,919 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:28,919 INFO L276 IsEmpty]: Start isEmpty. Operand 13303 states and 70693 transitions. [2021-06-05 13:42:28,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:28,944 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:28,944 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:28,944 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2021-06-05 13:42:28,944 INFO L430 AbstractCegarLoop]: === Iteration 332 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:28,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:28,945 INFO L82 PathProgramCache]: Analyzing trace with hash 454616861, now seen corresponding path program 325 times [2021-06-05 13:42:28,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:28,945 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083321820] [2021-06-05 13:42:28,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:28,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:29,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:29,098 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:29,098 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083321820] [2021-06-05 13:42:29,098 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083321820] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:29,098 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:29,098 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:29,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108817211] [2021-06-05 13:42:29,099 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:29,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:29,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:29,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:29,099 INFO L87 Difference]: Start difference. First operand 13303 states and 70693 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:29,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:29,358 INFO L93 Difference]: Finished difference Result 32084 states and 160745 transitions. [2021-06-05 13:42:29,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:29,358 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:29,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:29,447 INFO L225 Difference]: With dead ends: 32084 [2021-06-05 13:42:29,447 INFO L226 Difference]: Without dead ends: 31325 [2021-06-05 13:42:29,447 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 181.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:30,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31325 states. [2021-06-05 13:42:30,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31325 to 13489. [2021-06-05 13:42:30,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13489 states, 13488 states have (on average 5.304122182680902) internal successors, (71542), 13488 states have internal predecessors, (71542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:30,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13489 states to 13489 states and 71542 transitions. [2021-06-05 13:42:30,738 INFO L78 Accepts]: Start accepts. Automaton has 13489 states and 71542 transitions. Word has length 33 [2021-06-05 13:42:30,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:30,738 INFO L482 AbstractCegarLoop]: Abstraction has 13489 states and 71542 transitions. [2021-06-05 13:42:30,738 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:30,738 INFO L276 IsEmpty]: Start isEmpty. Operand 13489 states and 71542 transitions. [2021-06-05 13:42:30,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:30,764 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:30,764 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:30,765 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2021-06-05 13:42:30,765 INFO L430 AbstractCegarLoop]: === Iteration 333 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:30,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:30,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1147679941, now seen corresponding path program 326 times [2021-06-05 13:42:30,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:30,765 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529629761] [2021-06-05 13:42:30,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:30,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:30,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:30,902 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:30,902 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529629761] [2021-06-05 13:42:30,902 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529629761] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:30,902 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:30,902 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:30,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896104742] [2021-06-05 13:42:30,903 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:30,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:30,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:30,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:30,903 INFO L87 Difference]: Start difference. First operand 13489 states and 71542 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:31,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:31,321 INFO L93 Difference]: Finished difference Result 32090 states and 160638 transitions. [2021-06-05 13:42:31,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:31,321 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:31,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:31,408 INFO L225 Difference]: With dead ends: 32090 [2021-06-05 13:42:31,409 INFO L226 Difference]: Without dead ends: 31201 [2021-06-05 13:42:31,409 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:32,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31201 states. [2021-06-05 13:42:32,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31201 to 13365. [2021-06-05 13:42:32,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13365 states, 13364 states have (on average 5.3109847351092485) internal successors, (70976), 13364 states have internal predecessors, (70976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:32,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13365 states to 13365 states and 70976 transitions. [2021-06-05 13:42:32,462 INFO L78 Accepts]: Start accepts. Automaton has 13365 states and 70976 transitions. Word has length 33 [2021-06-05 13:42:32,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:32,462 INFO L482 AbstractCegarLoop]: Abstraction has 13365 states and 70976 transitions. [2021-06-05 13:42:32,462 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:32,462 INFO L276 IsEmpty]: Start isEmpty. Operand 13365 states and 70976 transitions. [2021-06-05 13:42:32,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:32,489 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:32,489 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:32,489 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332 [2021-06-05 13:42:32,489 INFO L430 AbstractCegarLoop]: === Iteration 334 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:32,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:32,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1912663931, now seen corresponding path program 327 times [2021-06-05 13:42:32,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:32,489 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976788393] [2021-06-05 13:42:32,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:32,649 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2021-06-05 13:42:32,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:32,769 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:32,769 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976788393] [2021-06-05 13:42:32,769 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976788393] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:32,769 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:32,769 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:32,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402075702] [2021-06-05 13:42:32,769 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:32,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:32,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:32,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:32,769 INFO L87 Difference]: Start difference. First operand 13365 states and 70976 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:33,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:33,006 INFO L93 Difference]: Finished difference Result 32082 states and 160678 transitions. [2021-06-05 13:42:33,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:33,006 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:33,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:33,105 INFO L225 Difference]: With dead ends: 32082 [2021-06-05 13:42:33,105 INFO L226 Difference]: Without dead ends: 31323 [2021-06-05 13:42:33,105 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 306.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:33,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31323 states. [2021-06-05 13:42:34,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31323 to 13489. [2021-06-05 13:42:34,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13489 states, 13488 states have (on average 5.2995255041518385) internal successors, (71480), 13488 states have internal predecessors, (71480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:34,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13489 states to 13489 states and 71480 transitions. [2021-06-05 13:42:34,357 INFO L78 Accepts]: Start accepts. Automaton has 13489 states and 71480 transitions. Word has length 33 [2021-06-05 13:42:34,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:34,357 INFO L482 AbstractCegarLoop]: Abstraction has 13489 states and 71480 transitions. [2021-06-05 13:42:34,357 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:34,357 INFO L276 IsEmpty]: Start isEmpty. Operand 13489 states and 71480 transitions. [2021-06-05 13:42:34,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:34,384 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:34,384 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:34,384 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2021-06-05 13:42:34,384 INFO L430 AbstractCegarLoop]: === Iteration 335 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:34,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:34,385 INFO L82 PathProgramCache]: Analyzing trace with hash -106564677, now seen corresponding path program 328 times [2021-06-05 13:42:34,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:34,385 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317243814] [2021-06-05 13:42:34,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:34,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:34,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:34,523 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:34,523 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317243814] [2021-06-05 13:42:34,523 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317243814] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:34,523 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:34,523 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:34,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801154717] [2021-06-05 13:42:34,523 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:34,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:34,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:34,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:34,523 INFO L87 Difference]: Start difference. First operand 13489 states and 71480 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:34,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:34,761 INFO L93 Difference]: Finished difference Result 32086 states and 160566 transitions. [2021-06-05 13:42:34,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:34,761 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:34,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:34,858 INFO L225 Difference]: With dead ends: 32086 [2021-06-05 13:42:34,858 INFO L226 Difference]: Without dead ends: 31199 [2021-06-05 13:42:34,858 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:35,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31199 states. [2021-06-05 13:42:36,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31199 to 13365. [2021-06-05 13:42:36,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13365 states, 13364 states have (on average 5.306345405567195) internal successors, (70914), 13364 states have internal predecessors, (70914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:36,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13365 states to 13365 states and 70914 transitions. [2021-06-05 13:42:36,103 INFO L78 Accepts]: Start accepts. Automaton has 13365 states and 70914 transitions. Word has length 33 [2021-06-05 13:42:36,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:36,103 INFO L482 AbstractCegarLoop]: Abstraction has 13365 states and 70914 transitions. [2021-06-05 13:42:36,103 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:36,103 INFO L276 IsEmpty]: Start isEmpty. Operand 13365 states and 70914 transitions. [2021-06-05 13:42:36,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:36,129 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:36,129 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:36,129 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2021-06-05 13:42:36,130 INFO L430 AbstractCegarLoop]: === Iteration 336 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:36,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:36,130 INFO L82 PathProgramCache]: Analyzing trace with hash -353159079, now seen corresponding path program 329 times [2021-06-05 13:42:36,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:36,130 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606966339] [2021-06-05 13:42:36,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:36,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:36,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:36,268 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:36,268 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606966339] [2021-06-05 13:42:36,268 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606966339] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:36,268 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:36,268 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:36,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454727901] [2021-06-05 13:42:36,268 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:36,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:36,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:36,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:36,268 INFO L87 Difference]: Start difference. First operand 13365 states and 70914 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:36,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:36,489 INFO L93 Difference]: Finished difference Result 32096 states and 160657 transitions. [2021-06-05 13:42:36,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:36,490 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:36,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:36,581 INFO L225 Difference]: With dead ends: 32096 [2021-06-05 13:42:36,581 INFO L226 Difference]: Without dead ends: 31331 [2021-06-05 13:42:36,581 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:37,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31331 states. [2021-06-05 13:42:37,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31331 to 13491. [2021-06-05 13:42:37,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13491 states, 13490 states have (on average 5.2945144551519645) internal successors, (71423), 13490 states have internal predecessors, (71423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:37,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13491 states to 13491 states and 71423 transitions. [2021-06-05 13:42:37,867 INFO L78 Accepts]: Start accepts. Automaton has 13491 states and 71423 transitions. Word has length 33 [2021-06-05 13:42:37,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:37,867 INFO L482 AbstractCegarLoop]: Abstraction has 13491 states and 71423 transitions. [2021-06-05 13:42:37,867 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:37,867 INFO L276 IsEmpty]: Start isEmpty. Operand 13491 states and 71423 transitions. [2021-06-05 13:42:37,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:37,893 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:37,893 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:37,893 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2021-06-05 13:42:37,893 INFO L430 AbstractCegarLoop]: === Iteration 337 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:37,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:37,893 INFO L82 PathProgramCache]: Analyzing trace with hash -834061125, now seen corresponding path program 330 times [2021-06-05 13:42:37,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:37,893 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796605169] [2021-06-05 13:42:37,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:38,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:38,032 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:38,032 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796605169] [2021-06-05 13:42:38,032 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796605169] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:38,032 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:38,032 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:38,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911192712] [2021-06-05 13:42:38,032 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:38,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:38,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:38,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:38,032 INFO L87 Difference]: Start difference. First operand 13491 states and 71423 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:38,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:38,260 INFO L93 Difference]: Finished difference Result 32094 states and 160526 transitions. [2021-06-05 13:42:38,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:38,261 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:38,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:38,361 INFO L225 Difference]: With dead ends: 32094 [2021-06-05 13:42:38,361 INFO L226 Difference]: Without dead ends: 31143 [2021-06-05 13:42:38,361 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:39,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31143 states. [2021-06-05 13:42:39,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31143 to 13303. [2021-06-05 13:42:39,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13303 states, 13302 states have (on average 5.312133513757329) internal successors, (70662), 13302 states have internal predecessors, (70662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:39,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13303 states to 13303 states and 70662 transitions. [2021-06-05 13:42:39,657 INFO L78 Accepts]: Start accepts. Automaton has 13303 states and 70662 transitions. Word has length 33 [2021-06-05 13:42:39,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:39,657 INFO L482 AbstractCegarLoop]: Abstraction has 13303 states and 70662 transitions. [2021-06-05 13:42:39,657 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:39,657 INFO L276 IsEmpty]: Start isEmpty. Operand 13303 states and 70662 transitions. [2021-06-05 13:42:39,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:39,683 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:39,683 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:39,683 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2021-06-05 13:42:39,683 INFO L430 AbstractCegarLoop]: === Iteration 338 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:39,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:39,683 INFO L82 PathProgramCache]: Analyzing trace with hash 635125849, now seen corresponding path program 331 times [2021-06-05 13:42:39,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:39,683 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577017668] [2021-06-05 13:42:39,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:39,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:39,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:39,824 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:39,824 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577017668] [2021-06-05 13:42:39,824 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577017668] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:39,824 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:39,824 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:39,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387531771] [2021-06-05 13:42:39,824 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:39,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:39,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:39,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:39,825 INFO L87 Difference]: Start difference. First operand 13303 states and 70662 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:40,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:40,260 INFO L93 Difference]: Finished difference Result 32914 states and 164434 transitions. [2021-06-05 13:42:40,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:40,260 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:40,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:40,374 INFO L225 Difference]: With dead ends: 32914 [2021-06-05 13:42:40,374 INFO L226 Difference]: Without dead ends: 32020 [2021-06-05 13:42:40,374 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 148.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:41,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32020 states. [2021-06-05 13:42:41,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32020 to 13717. [2021-06-05 13:42:41,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13717 states, 13716 states have (on average 5.283318751822689) internal successors, (72466), 13716 states have internal predecessors, (72466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:41,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13717 states to 13717 states and 72466 transitions. [2021-06-05 13:42:41,444 INFO L78 Accepts]: Start accepts. Automaton has 13717 states and 72466 transitions. Word has length 33 [2021-06-05 13:42:41,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:41,444 INFO L482 AbstractCegarLoop]: Abstraction has 13717 states and 72466 transitions. [2021-06-05 13:42:41,444 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:41,444 INFO L276 IsEmpty]: Start isEmpty. Operand 13717 states and 72466 transitions. [2021-06-05 13:42:41,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:41,472 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:41,472 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:41,472 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2021-06-05 13:42:41,472 INFO L430 AbstractCegarLoop]: === Iteration 339 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:41,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:41,472 INFO L82 PathProgramCache]: Analyzing trace with hash 154223803, now seen corresponding path program 332 times [2021-06-05 13:42:41,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:41,472 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369943239] [2021-06-05 13:42:41,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:41,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:41,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:41,612 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:41,612 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369943239] [2021-06-05 13:42:41,612 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369943239] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:41,612 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:41,612 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:41,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667477429] [2021-06-05 13:42:41,612 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:41,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:41,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:41,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:41,612 INFO L87 Difference]: Start difference. First operand 13717 states and 72466 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:42,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:42,022 INFO L93 Difference]: Finished difference Result 32785 states and 163665 transitions. [2021-06-05 13:42:42,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:42,023 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:42,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:42,121 INFO L225 Difference]: With dead ends: 32785 [2021-06-05 13:42:42,121 INFO L226 Difference]: Without dead ends: 31765 [2021-06-05 13:42:42,121 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:42,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31765 states. [2021-06-05 13:42:43,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31765 to 13462. [2021-06-05 13:42:43,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13462 states, 13461 states have (on average 5.297971918876755) internal successors, (71316), 13461 states have internal predecessors, (71316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:43,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13462 states to 13462 states and 71316 transitions. [2021-06-05 13:42:43,413 INFO L78 Accepts]: Start accepts. Automaton has 13462 states and 71316 transitions. Word has length 33 [2021-06-05 13:42:43,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:43,413 INFO L482 AbstractCegarLoop]: Abstraction has 13462 states and 71316 transitions. [2021-06-05 13:42:43,413 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:43,414 INFO L276 IsEmpty]: Start isEmpty. Operand 13462 states and 71316 transitions. [2021-06-05 13:42:43,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:43,441 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:43,441 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:43,441 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2021-06-05 13:42:43,441 INFO L430 AbstractCegarLoop]: === Iteration 340 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:43,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:43,441 INFO L82 PathProgramCache]: Analyzing trace with hash -1950239685, now seen corresponding path program 333 times [2021-06-05 13:42:43,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:43,441 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672665856] [2021-06-05 13:42:43,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:43,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:43,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:43,581 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:43,581 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672665856] [2021-06-05 13:42:43,581 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672665856] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:43,581 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:43,581 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:43,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313308265] [2021-06-05 13:42:43,582 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:43,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:43,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:43,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:43,582 INFO L87 Difference]: Start difference. First operand 13462 states and 71316 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:43,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:43,795 INFO L93 Difference]: Finished difference Result 32847 states and 164043 transitions. [2021-06-05 13:42:43,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:43,796 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:43,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:43,891 INFO L225 Difference]: With dead ends: 32847 [2021-06-05 13:42:43,892 INFO L226 Difference]: Without dead ends: 31953 [2021-06-05 13:42:43,892 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 148.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:44,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31953 states. [2021-06-05 13:42:45,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31953 to 13652. [2021-06-05 13:42:45,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13652 states, 13651 states have (on average 5.280272507508608) internal successors, (72081), 13651 states have internal predecessors, (72081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:45,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13652 states to 13652 states and 72081 transitions. [2021-06-05 13:42:45,161 INFO L78 Accepts]: Start accepts. Automaton has 13652 states and 72081 transitions. Word has length 33 [2021-06-05 13:42:45,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:45,161 INFO L482 AbstractCegarLoop]: Abstraction has 13652 states and 72081 transitions. [2021-06-05 13:42:45,161 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:45,161 INFO L276 IsEmpty]: Start isEmpty. Operand 13652 states and 72081 transitions. [2021-06-05 13:42:45,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:45,187 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:45,187 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:45,187 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339 [2021-06-05 13:42:45,187 INFO L430 AbstractCegarLoop]: === Iteration 341 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:45,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:45,187 INFO L82 PathProgramCache]: Analyzing trace with hash -857269189, now seen corresponding path program 334 times [2021-06-05 13:42:45,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:45,187 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021305422] [2021-06-05 13:42:45,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:45,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:45,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:45,324 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:45,324 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021305422] [2021-06-05 13:42:45,324 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021305422] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:45,324 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:45,324 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:45,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168463335] [2021-06-05 13:42:45,324 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:45,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:45,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:45,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:45,324 INFO L87 Difference]: Start difference. First operand 13652 states and 72081 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:45,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:45,566 INFO L93 Difference]: Finished difference Result 32716 states and 163270 transitions. [2021-06-05 13:42:45,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:45,566 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:45,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:45,656 INFO L225 Difference]: With dead ends: 32716 [2021-06-05 13:42:45,657 INFO L226 Difference]: Without dead ends: 31763 [2021-06-05 13:42:45,657 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:46,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31763 states. [2021-06-05 13:42:46,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31763 to 13462. [2021-06-05 13:42:46,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13462 states, 13461 states have (on average 5.290914493722606) internal successors, (71221), 13461 states have internal predecessors, (71221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:46,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13462 states to 13462 states and 71221 transitions. [2021-06-05 13:42:46,945 INFO L78 Accepts]: Start accepts. Automaton has 13462 states and 71221 transitions. Word has length 33 [2021-06-05 13:42:46,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:46,945 INFO L482 AbstractCegarLoop]: Abstraction has 13462 states and 71221 transitions. [2021-06-05 13:42:46,945 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:46,945 INFO L276 IsEmpty]: Start isEmpty. Operand 13462 states and 71221 transitions. [2021-06-05 13:42:46,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:46,973 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:46,973 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:46,973 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340 [2021-06-05 13:42:46,973 INFO L430 AbstractCegarLoop]: === Iteration 342 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:46,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:46,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1555341341, now seen corresponding path program 335 times [2021-06-05 13:42:46,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:46,973 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553867236] [2021-06-05 13:42:46,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:46,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:47,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:47,114 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:47,114 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553867236] [2021-06-05 13:42:47,114 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553867236] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:47,114 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:47,114 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:47,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155678877] [2021-06-05 13:42:47,114 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:47,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:47,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:47,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:47,115 INFO L87 Difference]: Start difference. First operand 13462 states and 71221 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:47,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:47,337 INFO L93 Difference]: Finished difference Result 32525 states and 162472 transitions. [2021-06-05 13:42:47,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:47,338 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:47,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:47,433 INFO L225 Difference]: With dead ends: 32525 [2021-06-05 13:42:47,433 INFO L226 Difference]: Without dead ends: 31760 [2021-06-05 13:42:47,434 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 168.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:48,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31760 states. [2021-06-05 13:42:48,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31760 to 13588. [2021-06-05 13:42:48,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13588 states, 13587 states have (on average 5.27931110620446) internal successors, (71730), 13587 states have internal predecessors, (71730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:48,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13588 states to 13588 states and 71730 transitions. [2021-06-05 13:42:48,773 INFO L78 Accepts]: Start accepts. Automaton has 13588 states and 71730 transitions. Word has length 33 [2021-06-05 13:42:48,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:48,773 INFO L482 AbstractCegarLoop]: Abstraction has 13588 states and 71730 transitions. [2021-06-05 13:42:48,773 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:48,774 INFO L276 IsEmpty]: Start isEmpty. Operand 13588 states and 71730 transitions. [2021-06-05 13:42:48,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:48,798 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:48,798 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:48,798 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341 [2021-06-05 13:42:48,799 INFO L430 AbstractCegarLoop]: === Iteration 343 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:48,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:48,799 INFO L82 PathProgramCache]: Analyzing trace with hash -467720197, now seen corresponding path program 336 times [2021-06-05 13:42:48,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:48,799 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543979919] [2021-06-05 13:42:48,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:48,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:48,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:48,939 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:48,939 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543979919] [2021-06-05 13:42:48,939 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543979919] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:48,939 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:48,939 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:48,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055152706] [2021-06-05 13:42:48,940 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:48,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:48,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:48,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:48,940 INFO L87 Difference]: Start difference. First operand 13588 states and 71730 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:49,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:49,295 INFO L93 Difference]: Finished difference Result 32523 states and 162341 transitions. [2021-06-05 13:42:49,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:49,295 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:49,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:49,709 INFO L225 Difference]: With dead ends: 32523 [2021-06-05 13:42:49,709 INFO L226 Difference]: Without dead ends: 31380 [2021-06-05 13:42:49,709 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 207.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:50,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31380 states. [2021-06-05 13:42:50,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31380 to 13208. [2021-06-05 13:42:50,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13208 states, 13207 states have (on average 5.321420458847581) internal successors, (70280), 13207 states have internal predecessors, (70280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:50,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13208 states to 13208 states and 70280 transitions. [2021-06-05 13:42:50,748 INFO L78 Accepts]: Start accepts. Automaton has 13208 states and 70280 transitions. Word has length 33 [2021-06-05 13:42:50,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:50,749 INFO L482 AbstractCegarLoop]: Abstraction has 13208 states and 70280 transitions. [2021-06-05 13:42:50,749 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:50,749 INFO L276 IsEmpty]: Start isEmpty. Operand 13208 states and 70280 transitions. [2021-06-05 13:42:50,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:50,774 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:50,774 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:50,774 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable342 [2021-06-05 13:42:50,774 INFO L430 AbstractCegarLoop]: === Iteration 344 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:50,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:50,774 INFO L82 PathProgramCache]: Analyzing trace with hash 237463863, now seen corresponding path program 337 times [2021-06-05 13:42:50,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:50,774 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356277946] [2021-06-05 13:42:50,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:50,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:50,938 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:50,938 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356277946] [2021-06-05 13:42:50,938 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356277946] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:50,939 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:50,939 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:50,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732746052] [2021-06-05 13:42:50,939 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:50,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:50,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:50,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:50,939 INFO L87 Difference]: Start difference. First operand 13208 states and 70280 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:51,250 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 29 [2021-06-05 13:42:51,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:51,356 INFO L93 Difference]: Finished difference Result 32584 states and 163211 transitions. [2021-06-05 13:42:51,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:51,356 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:51,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:51,453 INFO L225 Difference]: With dead ends: 32584 [2021-06-05 13:42:51,454 INFO L226 Difference]: Without dead ends: 31833 [2021-06-05 13:42:51,454 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 389.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:52,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31833 states. [2021-06-05 13:42:52,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31833 to 13594. [2021-06-05 13:42:52,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13594 states, 13593 states have (on average 5.309423968218936) internal successors, (72171), 13593 states have internal predecessors, (72171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:52,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13594 states to 13594 states and 72171 transitions. [2021-06-05 13:42:52,752 INFO L78 Accepts]: Start accepts. Automaton has 13594 states and 72171 transitions. Word has length 33 [2021-06-05 13:42:52,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:52,752 INFO L482 AbstractCegarLoop]: Abstraction has 13594 states and 72171 transitions. [2021-06-05 13:42:52,752 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:52,752 INFO L276 IsEmpty]: Start isEmpty. Operand 13594 states and 72171 transitions. [2021-06-05 13:42:52,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:52,781 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:52,781 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:52,781 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343 [2021-06-05 13:42:52,781 INFO L430 AbstractCegarLoop]: === Iteration 345 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:52,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:52,781 INFO L82 PathProgramCache]: Analyzing trace with hash -380059495, now seen corresponding path program 338 times [2021-06-05 13:42:52,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:52,781 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319297734] [2021-06-05 13:42:52,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:52,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:52,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:52,950 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:52,950 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319297734] [2021-06-05 13:42:52,950 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319297734] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:52,950 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:52,950 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:52,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296916194] [2021-06-05 13:42:52,950 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:52,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:52,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:52,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:52,950 INFO L87 Difference]: Start difference. First operand 13594 states and 72171 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:53,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:53,162 INFO L93 Difference]: Finished difference Result 32727 states and 163714 transitions. [2021-06-05 13:42:53,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:53,162 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:53,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:53,255 INFO L225 Difference]: With dead ends: 32727 [2021-06-05 13:42:53,255 INFO L226 Difference]: Without dead ends: 31649 [2021-06-05 13:42:53,255 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 175.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:53,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31649 states. [2021-06-05 13:42:54,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31649 to 13410. [2021-06-05 13:42:54,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13410 states, 13409 states have (on average 5.3148631516145874) internal successors, (71267), 13409 states have internal predecessors, (71267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:54,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13410 states to 13410 states and 71267 transitions. [2021-06-05 13:42:54,511 INFO L78 Accepts]: Start accepts. Automaton has 13410 states and 71267 transitions. Word has length 33 [2021-06-05 13:42:54,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:54,511 INFO L482 AbstractCegarLoop]: Abstraction has 13410 states and 71267 transitions. [2021-06-05 13:42:54,511 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:54,511 INFO L276 IsEmpty]: Start isEmpty. Operand 13410 states and 71267 transitions. [2021-06-05 13:42:54,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:54,537 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:54,537 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:54,537 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable344 [2021-06-05 13:42:54,537 INFO L430 AbstractCegarLoop]: === Iteration 346 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:54,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:54,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1947065625, now seen corresponding path program 339 times [2021-06-05 13:42:54,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:54,537 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446321598] [2021-06-05 13:42:54,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:54,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:54,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:54,722 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:54,722 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446321598] [2021-06-05 13:42:54,722 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446321598] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:54,722 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:54,722 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:54,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412687239] [2021-06-05 13:42:54,723 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:54,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:54,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:54,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:54,723 INFO L87 Difference]: Start difference. First operand 13410 states and 71267 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:54,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:54,947 INFO L93 Difference]: Finished difference Result 32391 states and 162221 transitions. [2021-06-05 13:42:54,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:54,947 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:54,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:55,038 INFO L225 Difference]: With dead ends: 32391 [2021-06-05 13:42:55,038 INFO L226 Difference]: Without dead ends: 31640 [2021-06-05 13:42:55,038 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 213.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:55,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31640 states. [2021-06-05 13:42:56,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31640 to 13530. [2021-06-05 13:42:56,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13530 states, 13529 states have (on average 5.304087515707) internal successors, (71759), 13529 states have internal predecessors, (71759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:56,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13530 states to 13530 states and 71759 transitions. [2021-06-05 13:42:56,330 INFO L78 Accepts]: Start accepts. Automaton has 13530 states and 71759 transitions. Word has length 33 [2021-06-05 13:42:56,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:56,330 INFO L482 AbstractCegarLoop]: Abstraction has 13530 states and 71759 transitions. [2021-06-05 13:42:56,330 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:56,330 INFO L276 IsEmpty]: Start isEmpty. Operand 13530 states and 71759 transitions. [2021-06-05 13:42:56,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:56,358 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:56,358 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:56,358 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable345 [2021-06-05 13:42:56,358 INFO L430 AbstractCegarLoop]: === Iteration 347 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:56,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:56,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1391552487, now seen corresponding path program 340 times [2021-06-05 13:42:56,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:56,359 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239858729] [2021-06-05 13:42:56,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:56,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:56,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:56,525 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:56,525 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239858729] [2021-06-05 13:42:56,525 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239858729] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:56,525 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:56,525 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:56,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541415526] [2021-06-05 13:42:56,526 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:56,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:56,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:56,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:56,526 INFO L87 Difference]: Start difference. First operand 13530 states and 71759 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:56,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:56,754 INFO L93 Difference]: Finished difference Result 32405 states and 162146 transitions. [2021-06-05 13:42:56,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:56,754 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:56,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:56,848 INFO L225 Difference]: With dead ends: 32405 [2021-06-05 13:42:56,848 INFO L226 Difference]: Without dead ends: 31520 [2021-06-05 13:42:56,848 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 194.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:57,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31520 states. [2021-06-05 13:42:58,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31520 to 13410. [2021-06-05 13:42:58,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13410 states, 13409 states have (on average 5.3103885450070845) internal successors, (71207), 13409 states have internal predecessors, (71207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:58,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13410 states to 13410 states and 71207 transitions. [2021-06-05 13:42:58,129 INFO L78 Accepts]: Start accepts. Automaton has 13410 states and 71207 transitions. Word has length 33 [2021-06-05 13:42:58,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:58,129 INFO L482 AbstractCegarLoop]: Abstraction has 13410 states and 71207 transitions. [2021-06-05 13:42:58,129 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:58,129 INFO L276 IsEmpty]: Start isEmpty. Operand 13410 states and 71207 transitions. [2021-06-05 13:42:58,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:58,156 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:58,156 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:58,156 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable346 [2021-06-05 13:42:58,156 INFO L430 AbstractCegarLoop]: === Iteration 348 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:58,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:58,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1423003909, now seen corresponding path program 341 times [2021-06-05 13:42:58,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:58,156 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315898461] [2021-06-05 13:42:58,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:58,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:58,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:58,306 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:58,306 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315898461] [2021-06-05 13:42:58,306 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315898461] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:58,306 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:58,306 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:42:58,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819829673] [2021-06-05 13:42:58,306 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:42:58,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:58,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:42:58,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:42:58,307 INFO L87 Difference]: Start difference. First operand 13410 states and 71207 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:58,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:58,521 INFO L93 Difference]: Finished difference Result 32812 states and 164009 transitions. [2021-06-05 13:42:58,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:42:58,522 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:42:58,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:58,870 INFO L225 Difference]: With dead ends: 32812 [2021-06-05 13:42:58,870 INFO L226 Difference]: Without dead ends: 31918 [2021-06-05 13:42:58,870 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 158.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:59,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31918 states. [2021-06-05 13:42:59,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31918 to 13665. [2021-06-05 13:42:59,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13665 states, 13664 states have (on average 5.2861533957845435) internal successors, (72230), 13664 states have internal predecessors, (72230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:59,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13665 states to 13665 states and 72230 transitions. [2021-06-05 13:42:59,943 INFO L78 Accepts]: Start accepts. Automaton has 13665 states and 72230 transitions. Word has length 33 [2021-06-05 13:42:59,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:59,943 INFO L482 AbstractCegarLoop]: Abstraction has 13665 states and 72230 transitions. [2021-06-05 13:42:59,943 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:59,943 INFO L276 IsEmpty]: Start isEmpty. Operand 13665 states and 72230 transitions. [2021-06-05 13:42:59,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:42:59,970 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:59,970 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:59,970 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable347 [2021-06-05 13:42:59,970 INFO L430 AbstractCegarLoop]: === Iteration 349 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:59,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:59,970 INFO L82 PathProgramCache]: Analyzing trace with hash 848901849, now seen corresponding path program 342 times [2021-06-05 13:42:59,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:59,970 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089248068] [2021-06-05 13:42:59,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:59,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:43:00,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:43:00,129 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:43:00,129 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089248068] [2021-06-05 13:43:00,129 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089248068] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:43:00,129 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:43:00,129 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:43:00,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538858057] [2021-06-05 13:43:00,129 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:43:00,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:43:00,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:43:00,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:43:00,129 INFO L87 Difference]: Start difference. First operand 13665 states and 72230 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:00,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:43:00,541 INFO L93 Difference]: Finished difference Result 32683 states and 163240 transitions. [2021-06-05 13:43:00,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:43:00,541 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:43:00,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:43:00,637 INFO L225 Difference]: With dead ends: 32683 [2021-06-05 13:43:00,637 INFO L226 Difference]: Without dead ends: 31539 [2021-06-05 13:43:00,637 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 187.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:43:01,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31539 states. [2021-06-05 13:43:01,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31539 to 13286. [2021-06-05 13:43:01,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13286 states, 13285 states have (on average 5.317350395182537) internal successors, (70641), 13285 states have internal predecessors, (70641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:01,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13286 states to 13286 states and 70641 transitions. [2021-06-05 13:43:01,950 INFO L78 Accepts]: Start accepts. Automaton has 13286 states and 70641 transitions. Word has length 33 [2021-06-05 13:43:01,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:43:01,950 INFO L482 AbstractCegarLoop]: Abstraction has 13286 states and 70641 transitions. [2021-06-05 13:43:01,950 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:01,950 INFO L276 IsEmpty]: Start isEmpty. Operand 13286 states and 70641 transitions. [2021-06-05 13:43:01,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:43:01,978 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:43:01,978 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:43:01,978 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable348 [2021-06-05 13:43:01,978 INFO L430 AbstractCegarLoop]: === Iteration 350 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:43:01,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:43:01,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1807717223, now seen corresponding path program 343 times [2021-06-05 13:43:01,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:43:01,978 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614583925] [2021-06-05 13:43:01,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:43:01,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:43:02,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:43:02,127 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:43:02,127 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614583925] [2021-06-05 13:43:02,127 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614583925] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:43:02,127 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:43:02,127 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:43:02,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762455890] [2021-06-05 13:43:02,127 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:43:02,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:43:02,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:43:02,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:43:02,128 INFO L87 Difference]: Start difference. First operand 13286 states and 70641 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:02,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:43:02,379 INFO L93 Difference]: Finished difference Result 32485 states and 162741 transitions. [2021-06-05 13:43:02,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:43:02,380 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:43:02,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:43:02,475 INFO L225 Difference]: With dead ends: 32485 [2021-06-05 13:43:02,475 INFO L226 Difference]: Without dead ends: 31734 [2021-06-05 13:43:02,475 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 176.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:43:03,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31734 states. [2021-06-05 13:43:03,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31734 to 13562. [2021-06-05 13:43:03,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13562 states, 13561 states have (on average 5.306762038197773) internal successors, (71965), 13561 states have internal predecessors, (71965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:03,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13562 states to 13562 states and 71965 transitions. [2021-06-05 13:43:03,758 INFO L78 Accepts]: Start accepts. Automaton has 13562 states and 71965 transitions. Word has length 33 [2021-06-05 13:43:03,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:43:03,758 INFO L482 AbstractCegarLoop]: Abstraction has 13562 states and 71965 transitions. [2021-06-05 13:43:03,758 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:03,758 INFO L276 IsEmpty]: Start isEmpty. Operand 13562 states and 71965 transitions. [2021-06-05 13:43:03,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:43:03,785 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:43:03,785 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:43:03,785 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable349 [2021-06-05 13:43:03,785 INFO L430 AbstractCegarLoop]: === Iteration 351 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:43:03,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:43:03,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1869726715, now seen corresponding path program 344 times [2021-06-05 13:43:03,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:43:03,786 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517987841] [2021-06-05 13:43:03,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:43:03,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:43:03,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:43:03,937 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:43:03,937 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517987841] [2021-06-05 13:43:03,937 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517987841] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:43:03,937 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:43:03,937 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:43:03,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024232414] [2021-06-05 13:43:03,937 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:43:03,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:43:03,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:43:03,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:43:03,938 INFO L87 Difference]: Start difference. First operand 13562 states and 71965 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:04,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:43:04,144 INFO L93 Difference]: Finished difference Result 32628 states and 163244 transitions. [2021-06-05 13:43:04,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:43:04,144 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:43:04,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:43:04,237 INFO L225 Difference]: With dead ends: 32628 [2021-06-05 13:43:04,237 INFO L226 Difference]: Without dead ends: 31550 [2021-06-05 13:43:04,238 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 159.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:43:05,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31550 states. [2021-06-05 13:43:05,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31550 to 13378. [2021-06-05 13:43:05,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13378 states, 13377 states have (on average 5.312177618300067) internal successors, (71061), 13377 states have internal predecessors, (71061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:05,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13378 states to 13378 states and 71061 transitions. [2021-06-05 13:43:05,614 INFO L78 Accepts]: Start accepts. Automaton has 13378 states and 71061 transitions. Word has length 33 [2021-06-05 13:43:05,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:43:05,614 INFO L482 AbstractCegarLoop]: Abstraction has 13378 states and 71061 transitions. [2021-06-05 13:43:05,614 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:05,614 INFO L276 IsEmpty]: Start isEmpty. Operand 13378 states and 71061 transitions. [2021-06-05 13:43:05,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:43:05,639 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:43:05,639 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:43:05,639 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350 [2021-06-05 13:43:05,639 INFO L430 AbstractCegarLoop]: === Iteration 352 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:43:05,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:43:05,639 INFO L82 PathProgramCache]: Analyzing trace with hash 564909209, now seen corresponding path program 345 times [2021-06-05 13:43:05,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:43:05,640 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144276875] [2021-06-05 13:43:05,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:43:05,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:43:05,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:43:05,775 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:43:05,775 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144276875] [2021-06-05 13:43:05,775 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144276875] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:43:05,775 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:43:05,775 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:43:05,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038056334] [2021-06-05 13:43:05,776 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:43:05,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:43:05,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:43:05,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:43:05,776 INFO L87 Difference]: Start difference. First operand 13378 states and 71061 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:06,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:43:06,011 INFO L93 Difference]: Finished difference Result 32290 states and 161746 transitions. [2021-06-05 13:43:06,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:43:06,011 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:43:06,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:43:06,109 INFO L225 Difference]: With dead ends: 32290 [2021-06-05 13:43:06,109 INFO L226 Difference]: Without dead ends: 31539 [2021-06-05 13:43:06,109 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 164.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:43:07,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31539 states. [2021-06-05 13:43:07,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31539 to 13498. [2021-06-05 13:43:07,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13498 states, 13497 states have (on average 5.301400311180262) internal successors, (71553), 13497 states have internal predecessors, (71553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:07,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13498 states to 13498 states and 71553 transitions. [2021-06-05 13:43:07,489 INFO L78 Accepts]: Start accepts. Automaton has 13498 states and 71553 transitions. Word has length 33 [2021-06-05 13:43:07,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:43:07,489 INFO L482 AbstractCegarLoop]: Abstraction has 13498 states and 71553 transitions. [2021-06-05 13:43:07,489 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:07,489 INFO L276 IsEmpty]: Start isEmpty. Operand 13498 states and 71553 transitions. [2021-06-05 13:43:07,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:43:07,516 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:43:07,516 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:43:07,516 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable351 [2021-06-05 13:43:07,516 INFO L430 AbstractCegarLoop]: === Iteration 353 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:43:07,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:43:07,516 INFO L82 PathProgramCache]: Analyzing trace with hash 818249625, now seen corresponding path program 346 times [2021-06-05 13:43:07,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:43:07,516 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342607052] [2021-06-05 13:43:07,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:43:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:43:07,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:43:07,655 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:43:07,655 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342607052] [2021-06-05 13:43:07,655 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342607052] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:43:07,655 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:43:07,656 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:43:07,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814568271] [2021-06-05 13:43:07,656 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:43:07,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:43:07,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:43:07,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:43:07,656 INFO L87 Difference]: Start difference. First operand 13498 states and 71553 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:07,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:43:07,885 INFO L93 Difference]: Finished difference Result 32302 states and 161666 transitions. [2021-06-05 13:43:07,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:43:07,885 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:43:07,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:43:08,237 INFO L225 Difference]: With dead ends: 32302 [2021-06-05 13:43:08,238 INFO L226 Difference]: Without dead ends: 31419 [2021-06-05 13:43:08,238 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 168.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:43:08,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31419 states. [2021-06-05 13:43:09,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31419 to 13378. [2021-06-05 13:43:09,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13378 states, 13377 states have (on average 5.3076923076923075) internal successors, (71001), 13377 states have internal predecessors, (71001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:09,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13378 states to 13378 states and 71001 transitions. [2021-06-05 13:43:09,277 INFO L78 Accepts]: Start accepts. Automaton has 13378 states and 71001 transitions. Word has length 33 [2021-06-05 13:43:09,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:43:09,277 INFO L482 AbstractCegarLoop]: Abstraction has 13378 states and 71001 transitions. [2021-06-05 13:43:09,277 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:09,278 INFO L276 IsEmpty]: Start isEmpty. Operand 13378 states and 71001 transitions. [2021-06-05 13:43:09,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:43:09,303 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:43:09,303 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:43:09,303 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable352 [2021-06-05 13:43:09,303 INFO L430 AbstractCegarLoop]: === Iteration 354 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:43:09,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:43:09,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1489806971, now seen corresponding path program 347 times [2021-06-05 13:43:09,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:43:09,304 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230274948] [2021-06-05 13:43:09,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:43:09,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:43:09,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:43:09,440 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:43:09,440 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230274948] [2021-06-05 13:43:09,440 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230274948] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:43:09,440 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:43:09,440 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:43:09,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460560994] [2021-06-05 13:43:09,440 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:43:09,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:43:09,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:43:09,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:43:09,440 INFO L87 Difference]: Start difference. First operand 13378 states and 71001 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:09,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:43:09,847 INFO L93 Difference]: Finished difference Result 32646 states and 163275 transitions. [2021-06-05 13:43:09,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:43:09,848 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:43:09,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:43:09,946 INFO L225 Difference]: With dead ends: 32646 [2021-06-05 13:43:09,946 INFO L226 Difference]: Without dead ends: 31752 [2021-06-05 13:43:09,946 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 144.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:43:10,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31752 states. [2021-06-05 13:43:10,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31752 to 13568. [2021-06-05 13:43:10,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13568 states, 13567 states have (on average 5.289747180658952) internal successors, (71766), 13567 states have internal predecessors, (71766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:11,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13568 states to 13568 states and 71766 transitions. [2021-06-05 13:43:11,242 INFO L78 Accepts]: Start accepts. Automaton has 13568 states and 71766 transitions. Word has length 33 [2021-06-05 13:43:11,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:43:11,242 INFO L482 AbstractCegarLoop]: Abstraction has 13568 states and 71766 transitions. [2021-06-05 13:43:11,242 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:11,243 INFO L276 IsEmpty]: Start isEmpty. Operand 13568 states and 71766 transitions. [2021-06-05 13:43:11,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:43:11,278 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:43:11,278 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:43:11,278 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable353 [2021-06-05 13:43:11,278 INFO L430 AbstractCegarLoop]: === Iteration 355 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:43:11,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:43:11,278 INFO L82 PathProgramCache]: Analyzing trace with hash -543205671, now seen corresponding path program 348 times [2021-06-05 13:43:11,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:43:11,278 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188631189] [2021-06-05 13:43:11,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:43:11,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:43:11,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:43:11,415 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:43:11,415 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188631189] [2021-06-05 13:43:11,415 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188631189] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:43:11,415 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:43:11,415 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:43:11,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480905789] [2021-06-05 13:43:11,416 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:43:11,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:43:11,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:43:11,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:43:11,416 INFO L87 Difference]: Start difference. First operand 13568 states and 71766 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:11,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:43:11,631 INFO L93 Difference]: Finished difference Result 32515 states and 162502 transitions. [2021-06-05 13:43:11,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:43:11,632 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:43:11,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:43:11,728 INFO L225 Difference]: With dead ends: 32515 [2021-06-05 13:43:11,729 INFO L226 Difference]: Without dead ends: 31470 [2021-06-05 13:43:11,729 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:43:12,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31470 states. [2021-06-05 13:43:12,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31470 to 13286. [2021-06-05 13:43:12,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13286 states, 13285 states have (on average 5.313887843432442) internal successors, (70595), 13285 states have internal predecessors, (70595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:12,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13286 states to 13286 states and 70595 transitions. [2021-06-05 13:43:12,962 INFO L78 Accepts]: Start accepts. Automaton has 13286 states and 70595 transitions. Word has length 33 [2021-06-05 13:43:12,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:43:12,962 INFO L482 AbstractCegarLoop]: Abstraction has 13286 states and 70595 transitions. [2021-06-05 13:43:12,962 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:12,963 INFO L276 IsEmpty]: Start isEmpty. Operand 13286 states and 70595 transitions. [2021-06-05 13:43:12,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:43:12,987 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:43:12,987 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:43:12,987 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable354 [2021-06-05 13:43:12,987 INFO L430 AbstractCegarLoop]: === Iteration 356 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:43:12,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:43:12,987 INFO L82 PathProgramCache]: Analyzing trace with hash -198711301, now seen corresponding path program 349 times [2021-06-05 13:43:12,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:43:12,987 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848622810] [2021-06-05 13:43:12,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:43:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:43:13,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:43:13,141 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:43:13,141 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848622810] [2021-06-05 13:43:13,141 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848622810] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:43:13,141 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:43:13,141 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:43:13,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781102714] [2021-06-05 13:43:13,141 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:43:13,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:43:13,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:43:13,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:43:13,141 INFO L87 Difference]: Start difference. First operand 13286 states and 70595 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:13,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:43:13,376 INFO L93 Difference]: Finished difference Result 32003 states and 160403 transitions. [2021-06-05 13:43:13,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:43:13,376 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:43:13,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:43:13,470 INFO L225 Difference]: With dead ends: 32003 [2021-06-05 13:43:13,470 INFO L226 Difference]: Without dead ends: 31252 [2021-06-05 13:43:13,470 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 182.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:43:14,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31252 states. [2021-06-05 13:43:14,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31252 to 13466. [2021-06-05 13:43:14,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13466 states, 13465 states have (on average 5.304344597103602) internal successors, (71423), 13465 states have internal predecessors, (71423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:14,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13466 states to 13466 states and 71423 transitions. [2021-06-05 13:43:14,709 INFO L78 Accepts]: Start accepts. Automaton has 13466 states and 71423 transitions. Word has length 33 [2021-06-05 13:43:14,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:43:14,709 INFO L482 AbstractCegarLoop]: Abstraction has 13466 states and 71423 transitions. [2021-06-05 13:43:14,709 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:14,710 INFO L276 IsEmpty]: Start isEmpty. Operand 13466 states and 71423 transitions. [2021-06-05 13:43:14,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:43:14,735 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:43:14,735 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:43:14,735 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable355 [2021-06-05 13:43:14,735 INFO L430 AbstractCegarLoop]: === Iteration 357 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:43:14,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:43:14,735 INFO L82 PathProgramCache]: Analyzing trace with hash 757637883, now seen corresponding path program 350 times [2021-06-05 13:43:14,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:43:14,735 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51852695] [2021-06-05 13:43:14,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:43:14,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:43:14,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:43:14,888 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:43:14,888 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51852695] [2021-06-05 13:43:14,888 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51852695] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:43:14,888 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:43:14,888 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:43:14,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89334714] [2021-06-05 13:43:14,888 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:43:14,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:43:14,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:43:14,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:43:14,888 INFO L87 Difference]: Start difference. First operand 13466 states and 71423 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:15,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:43:15,116 INFO L93 Difference]: Finished difference Result 32017 states and 160328 transitions. [2021-06-05 13:43:15,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:43:15,116 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:43:15,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:43:15,212 INFO L225 Difference]: With dead ends: 32017 [2021-06-05 13:43:15,212 INFO L226 Difference]: Without dead ends: 31132 [2021-06-05 13:43:15,212 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 181.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:43:16,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31132 states. [2021-06-05 13:43:16,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31132 to 13346. [2021-06-05 13:43:16,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13346 states, 13345 states have (on average 5.310678156612964) internal successors, (70871), 13345 states have internal predecessors, (70871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:16,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13346 states to 13346 states and 70871 transitions. [2021-06-05 13:43:16,464 INFO L78 Accepts]: Start accepts. Automaton has 13346 states and 70871 transitions. Word has length 33 [2021-06-05 13:43:16,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:43:16,464 INFO L482 AbstractCegarLoop]: Abstraction has 13346 states and 70871 transitions. [2021-06-05 13:43:16,464 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:16,464 INFO L276 IsEmpty]: Start isEmpty. Operand 13346 states and 70871 transitions. [2021-06-05 13:43:16,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:43:16,490 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:43:16,490 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:43:16,490 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable356 [2021-06-05 13:43:16,490 INFO L430 AbstractCegarLoop]: === Iteration 358 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:43:16,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:43:16,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1259335769, now seen corresponding path program 351 times [2021-06-05 13:43:16,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:43:16,491 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514654135] [2021-06-05 13:43:16,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:43:16,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:43:16,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:43:16,627 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:43:16,627 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514654135] [2021-06-05 13:43:16,627 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514654135] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:43:16,627 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:43:16,627 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:43:16,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678537910] [2021-06-05 13:43:16,628 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:43:16,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:43:16,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:43:16,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:43:16,628 INFO L87 Difference]: Start difference. First operand 13346 states and 70871 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:16,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:43:16,852 INFO L93 Difference]: Finished difference Result 32001 states and 160338 transitions. [2021-06-05 13:43:16,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:43:16,853 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:43:16,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:43:16,945 INFO L225 Difference]: With dead ends: 32001 [2021-06-05 13:43:16,946 INFO L226 Difference]: Without dead ends: 31250 [2021-06-05 13:43:16,946 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 164.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:43:17,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31250 states. [2021-06-05 13:43:18,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31250 to 13466. [2021-06-05 13:43:18,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13466 states, 13465 states have (on average 5.299888600074267) internal successors, (71363), 13465 states have internal predecessors, (71363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:18,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13466 states to 13466 states and 71363 transitions. [2021-06-05 13:43:18,213 INFO L78 Accepts]: Start accepts. Automaton has 13466 states and 71363 transitions. Word has length 33 [2021-06-05 13:43:18,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:43:18,214 INFO L482 AbstractCegarLoop]: Abstraction has 13466 states and 71363 transitions. [2021-06-05 13:43:18,214 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:18,214 INFO L276 IsEmpty]: Start isEmpty. Operand 13466 states and 71363 transitions. [2021-06-05 13:43:18,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:43:18,239 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:43:18,239 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:43:18,239 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable357 [2021-06-05 13:43:18,239 INFO L430 AbstractCegarLoop]: === Iteration 359 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:43:18,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:43:18,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1226931461, now seen corresponding path program 352 times [2021-06-05 13:43:18,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:43:18,240 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533005780] [2021-06-05 13:43:18,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:43:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:43:18,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:43:18,383 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:43:18,383 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533005780] [2021-06-05 13:43:18,383 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533005780] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:43:18,383 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:43:18,383 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:43:18,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013700689] [2021-06-05 13:43:18,383 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:43:18,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:43:18,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:43:18,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:43:18,384 INFO L87 Difference]: Start difference. First operand 13466 states and 71363 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:18,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:43:18,775 INFO L93 Difference]: Finished difference Result 32013 states and 160258 transitions. [2021-06-05 13:43:18,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:43:18,776 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:43:18,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:43:18,873 INFO L225 Difference]: With dead ends: 32013 [2021-06-05 13:43:18,873 INFO L226 Difference]: Without dead ends: 31130 [2021-06-05 13:43:18,873 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:43:19,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31130 states. [2021-06-05 13:43:19,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31130 to 13346. [2021-06-05 13:43:19,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13346 states, 13345 states have (on average 5.306182090670664) internal successors, (70811), 13345 states have internal predecessors, (70811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:19,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13346 states to 13346 states and 70811 transitions. [2021-06-05 13:43:19,942 INFO L78 Accepts]: Start accepts. Automaton has 13346 states and 70811 transitions. Word has length 33 [2021-06-05 13:43:19,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:43:19,942 INFO L482 AbstractCegarLoop]: Abstraction has 13346 states and 70811 transitions. [2021-06-05 13:43:19,942 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:19,942 INFO L276 IsEmpty]: Start isEmpty. Operand 13346 states and 70811 transitions. [2021-06-05 13:43:19,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:43:19,968 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:43:19,968 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:43:19,968 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable358 [2021-06-05 13:43:19,968 INFO L430 AbstractCegarLoop]: === Iteration 360 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:43:19,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:43:19,968 INFO L82 PathProgramCache]: Analyzing trace with hash -595358213, now seen corresponding path program 353 times [2021-06-05 13:43:19,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:43:19,968 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374782991] [2021-06-05 13:43:19,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:43:19,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:43:20,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:43:20,237 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:43:20,237 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374782991] [2021-06-05 13:43:20,237 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374782991] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:43:20,237 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:43:20,237 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:43:20,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295958730] [2021-06-05 13:43:20,237 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:43:20,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:43:20,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:43:20,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:43:20,237 INFO L87 Difference]: Start difference. First operand 13346 states and 70811 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:20,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:43:20,463 INFO L93 Difference]: Finished difference Result 32035 states and 160391 transitions. [2021-06-05 13:43:20,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:43:20,464 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:43:20,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:43:20,560 INFO L225 Difference]: With dead ends: 32035 [2021-06-05 13:43:20,561 INFO L226 Difference]: Without dead ends: 31270 [2021-06-05 13:43:20,561 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:43:21,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31270 states. [2021-06-05 13:43:21,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31270 to 13472. [2021-06-05 13:43:21,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13472 states, 13471 states have (on average 5.294335980996214) internal successors, (71320), 13471 states have internal predecessors, (71320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:21,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13472 states to 13472 states and 71320 transitions. [2021-06-05 13:43:21,781 INFO L78 Accepts]: Start accepts. Automaton has 13472 states and 71320 transitions. Word has length 33 [2021-06-05 13:43:21,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:43:21,781 INFO L482 AbstractCegarLoop]: Abstraction has 13472 states and 71320 transitions. [2021-06-05 13:43:21,781 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:21,781 INFO L276 IsEmpty]: Start isEmpty. Operand 13472 states and 71320 transitions. [2021-06-05 13:43:21,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:43:21,811 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:43:21,811 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:43:21,811 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable359 [2021-06-05 13:43:21,811 INFO L430 AbstractCegarLoop]: === Iteration 361 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:43:21,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:43:21,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1676547545, now seen corresponding path program 354 times [2021-06-05 13:43:21,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:43:21,811 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752733853] [2021-06-05 13:43:21,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:43:21,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:43:21,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:43:21,955 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:43:21,955 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752733853] [2021-06-05 13:43:21,955 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752733853] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:43:21,955 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:43:21,955 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:43:21,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35983736] [2021-06-05 13:43:21,955 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:43:21,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:43:21,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:43:21,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:43:21,956 INFO L87 Difference]: Start difference. First operand 13472 states and 71320 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:22,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:43:22,180 INFO L93 Difference]: Finished difference Result 32033 states and 160260 transitions. [2021-06-05 13:43:22,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:43:22,180 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:43:22,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:43:22,275 INFO L225 Difference]: With dead ends: 32033 [2021-06-05 13:43:22,275 INFO L226 Difference]: Without dead ends: 31084 [2021-06-05 13:43:22,275 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 170.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:43:22,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31084 states. [2021-06-05 13:43:23,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31084 to 13286. [2021-06-05 13:43:23,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13286 states, 13285 states have (on average 5.311629657508468) internal successors, (70565), 13285 states have internal predecessors, (70565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:23,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13286 states to 13286 states and 70565 transitions. [2021-06-05 13:43:23,474 INFO L78 Accepts]: Start accepts. Automaton has 13286 states and 70565 transitions. Word has length 33 [2021-06-05 13:43:23,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:43:23,474 INFO L482 AbstractCegarLoop]: Abstraction has 13286 states and 70565 transitions. [2021-06-05 13:43:23,474 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:23,474 INFO L276 IsEmpty]: Start isEmpty. Operand 13286 states and 70565 transitions. [2021-06-05 13:43:23,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:43:23,499 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:43:23,499 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:43:23,499 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable360 [2021-06-05 13:43:23,500 INFO L430 AbstractCegarLoop]: === Iteration 362 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:43:23,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:43:23,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1229165661, now seen corresponding path program 355 times [2021-06-05 13:43:23,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:43:23,500 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479755230] [2021-06-05 13:43:23,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:43:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:43:23,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:43:23,639 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:43:23,639 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479755230] [2021-06-05 13:43:23,639 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479755230] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:43:23,639 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:43:23,639 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:43:23,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674641326] [2021-06-05 13:43:23,639 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:43:23,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:43:23,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:43:23,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:43:23,640 INFO L87 Difference]: Start difference. First operand 13286 states and 70565 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:23,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:43:23,844 INFO L93 Difference]: Finished difference Result 32871 states and 164234 transitions. [2021-06-05 13:43:23,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:43:23,845 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:43:23,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:43:23,940 INFO L225 Difference]: With dead ends: 32871 [2021-06-05 13:43:23,940 INFO L226 Difference]: Without dead ends: 31977 [2021-06-05 13:43:23,941 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 146.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:43:24,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31977 states. [2021-06-05 13:43:25,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31977 to 13700. [2021-06-05 13:43:25,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13700 states, 13699 states have (on average 5.282794364552157) internal successors, (72369), 13699 states have internal predecessors, (72369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:25,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13700 states to 13700 states and 72369 transitions. [2021-06-05 13:43:25,220 INFO L78 Accepts]: Start accepts. Automaton has 13700 states and 72369 transitions. Word has length 33 [2021-06-05 13:43:25,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:43:25,220 INFO L482 AbstractCegarLoop]: Abstraction has 13700 states and 72369 transitions. [2021-06-05 13:43:25,220 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:25,221 INFO L276 IsEmpty]: Start isEmpty. Operand 13700 states and 72369 transitions. [2021-06-05 13:43:25,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:43:25,246 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:43:25,246 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:43:25,246 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361 [2021-06-05 13:43:25,246 INFO L430 AbstractCegarLoop]: === Iteration 363 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:43:25,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:43:25,246 INFO L82 PathProgramCache]: Analyzing trace with hash -793895877, now seen corresponding path program 356 times [2021-06-05 13:43:25,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:43:25,246 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451518784] [2021-06-05 13:43:25,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:43:25,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:43:25,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:43:25,386 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:43:25,386 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451518784] [2021-06-05 13:43:25,386 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451518784] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:43:25,386 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:43:25,386 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:43:25,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577735406] [2021-06-05 13:43:25,386 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:43:25,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:43:25,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:43:25,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:43:25,386 INFO L87 Difference]: Start difference. First operand 13700 states and 72369 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:25,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:43:25,633 INFO L93 Difference]: Finished difference Result 32742 states and 163465 transitions. [2021-06-05 13:43:25,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:43:25,634 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:43:25,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:43:25,729 INFO L225 Difference]: With dead ends: 32742 [2021-06-05 13:43:25,729 INFO L226 Difference]: Without dead ends: 31722 [2021-06-05 13:43:25,729 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 167.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:43:26,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31722 states. [2021-06-05 13:43:26,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31722 to 13445. [2021-06-05 13:43:26,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13445 states, 13444 states have (on average 5.297456114251711) internal successors, (71219), 13444 states have internal predecessors, (71219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:26,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13445 states to 13445 states and 71219 transitions. [2021-06-05 13:43:26,990 INFO L78 Accepts]: Start accepts. Automaton has 13445 states and 71219 transitions. Word has length 33 [2021-06-05 13:43:26,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:43:26,990 INFO L482 AbstractCegarLoop]: Abstraction has 13445 states and 71219 transitions. [2021-06-05 13:43:26,990 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:26,990 INFO L276 IsEmpty]: Start isEmpty. Operand 13445 states and 71219 transitions. [2021-06-05 13:43:27,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:43:27,016 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:43:27,016 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:43:27,016 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable362 [2021-06-05 13:43:27,016 INFO L430 AbstractCegarLoop]: === Iteration 364 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:43:27,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:43:27,017 INFO L82 PathProgramCache]: Analyzing trace with hash -1607754565, now seen corresponding path program 357 times [2021-06-05 13:43:27,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:43:27,017 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539761890] [2021-06-05 13:43:27,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:43:27,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:43:27,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:43:27,154 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:43:27,154 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539761890] [2021-06-05 13:43:27,154 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539761890] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:43:27,154 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:43:27,154 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:43:27,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423661129] [2021-06-05 13:43:27,155 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:43:27,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:43:27,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:43:27,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:43:27,155 INFO L87 Difference]: Start difference. First operand 13445 states and 71219 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:27,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:43:27,573 INFO L93 Difference]: Finished difference Result 32804 states and 163843 transitions. [2021-06-05 13:43:27,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:43:27,574 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:43:27,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:43:27,679 INFO L225 Difference]: With dead ends: 32804 [2021-06-05 13:43:27,679 INFO L226 Difference]: Without dead ends: 31910 [2021-06-05 13:43:27,680 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 145.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:43:28,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31910 states. [2021-06-05 13:43:28,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31910 to 13635. [2021-06-05 13:43:28,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13635 states, 13634 states have (on average 5.279741821915799) internal successors, (71984), 13634 states have internal predecessors, (71984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:28,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13635 states to 13635 states and 71984 transitions. [2021-06-05 13:43:28,754 INFO L78 Accepts]: Start accepts. Automaton has 13635 states and 71984 transitions. Word has length 33 [2021-06-05 13:43:28,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:43:28,754 INFO L482 AbstractCegarLoop]: Abstraction has 13635 states and 71984 transitions. [2021-06-05 13:43:28,754 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:28,754 INFO L276 IsEmpty]: Start isEmpty. Operand 13635 states and 71984 transitions. [2021-06-05 13:43:28,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:43:28,782 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:43:28,782 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:43:28,782 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable363 [2021-06-05 13:43:28,782 INFO L430 AbstractCegarLoop]: === Iteration 365 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:43:28,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:43:28,782 INFO L82 PathProgramCache]: Analyzing trace with hash -2085407557, now seen corresponding path program 358 times [2021-06-05 13:43:28,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:43:28,782 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488499132] [2021-06-05 13:43:28,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:43:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:43:28,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:43:28,919 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:43:28,919 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488499132] [2021-06-05 13:43:28,919 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488499132] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:43:28,919 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:43:28,920 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:43:28,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628940349] [2021-06-05 13:43:28,920 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:43:28,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:43:28,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:43:28,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:43:28,920 INFO L87 Difference]: Start difference. First operand 13635 states and 71984 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:29,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:43:29,291 INFO L93 Difference]: Finished difference Result 32673 states and 163070 transitions. [2021-06-05 13:43:29,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:43:29,291 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:43:29,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:43:29,386 INFO L225 Difference]: With dead ends: 32673 [2021-06-05 13:43:29,386 INFO L226 Difference]: Without dead ends: 31720 [2021-06-05 13:43:29,386 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:43:30,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31720 states. [2021-06-05 13:43:30,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31720 to 13445. [2021-06-05 13:43:30,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13445 states, 13444 states have (on average 5.290389764950907) internal successors, (71124), 13444 states have internal predecessors, (71124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:30,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13445 states to 13445 states and 71124 transitions. [2021-06-05 13:43:30,695 INFO L78 Accepts]: Start accepts. Automaton has 13445 states and 71124 transitions. Word has length 33 [2021-06-05 13:43:30,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:43:30,696 INFO L482 AbstractCegarLoop]: Abstraction has 13445 states and 71124 transitions. [2021-06-05 13:43:30,696 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:30,696 INFO L276 IsEmpty]: Start isEmpty. Operand 13445 states and 71124 transitions. [2021-06-05 13:43:30,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:43:30,720 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:43:30,720 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:43:30,720 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable364 [2021-06-05 13:43:30,720 INFO L430 AbstractCegarLoop]: === Iteration 366 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:43:30,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:43:30,720 INFO L82 PathProgramCache]: Analyzing trace with hash -308925159, now seen corresponding path program 359 times [2021-06-05 13:43:30,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:43:30,721 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145343561] [2021-06-05 13:43:30,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:43:30,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:43:30,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:43:30,857 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:43:30,858 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145343561] [2021-06-05 13:43:30,858 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145343561] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:43:30,858 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:43:30,858 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:43:30,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941576275] [2021-06-05 13:43:30,858 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:43:30,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:43:30,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:43:30,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:43:30,858 INFO L87 Difference]: Start difference. First operand 13445 states and 71124 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:31,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:43:31,080 INFO L93 Difference]: Finished difference Result 32482 states and 162272 transitions. [2021-06-05 13:43:31,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:43:31,080 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:43:31,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:43:31,173 INFO L225 Difference]: With dead ends: 32482 [2021-06-05 13:43:31,173 INFO L226 Difference]: Without dead ends: 31717 [2021-06-05 13:43:31,173 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:43:31,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31717 states. [2021-06-05 13:43:32,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31717 to 13571. [2021-06-05 13:43:32,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13571 states, 13570 states have (on average 5.278776713338246) internal successors, (71633), 13570 states have internal predecessors, (71633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:32,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13571 states to 13571 states and 71633 transitions. [2021-06-05 13:43:32,556 INFO L78 Accepts]: Start accepts. Automaton has 13571 states and 71633 transitions. Word has length 33 [2021-06-05 13:43:32,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:43:32,556 INFO L482 AbstractCegarLoop]: Abstraction has 13571 states and 71633 transitions. [2021-06-05 13:43:32,556 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:32,556 INFO L276 IsEmpty]: Start isEmpty. Operand 13571 states and 71633 transitions. [2021-06-05 13:43:32,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:43:32,581 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:43:32,581 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:43:32,581 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable365 [2021-06-05 13:43:32,581 INFO L430 AbstractCegarLoop]: === Iteration 367 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:43:32,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:43:32,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1400676603, now seen corresponding path program 360 times [2021-06-05 13:43:32,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:43:32,581 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341117084] [2021-06-05 13:43:32,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:43:32,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:43:32,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:43:32,719 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:43:32,719 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341117084] [2021-06-05 13:43:32,719 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341117084] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:43:32,719 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:43:32,719 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:43:32,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405969628] [2021-06-05 13:43:32,720 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:43:32,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:43:32,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:43:32,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:43:32,720 INFO L87 Difference]: Start difference. First operand 13571 states and 71633 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:32,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:43:32,965 INFO L93 Difference]: Finished difference Result 32480 states and 162141 transitions. [2021-06-05 13:43:32,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:43:32,965 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:43:32,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:43:33,057 INFO L225 Difference]: With dead ends: 32480 [2021-06-05 13:43:33,057 INFO L226 Difference]: Without dead ends: 31299 [2021-06-05 13:43:33,057 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 167.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:43:34,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31299 states. [2021-06-05 13:43:34,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31299 to 13153. [2021-06-05 13:43:34,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13153 states, 13152 states have (on average 5.329227493917275) internal successors, (70090), 13152 states have internal predecessors, (70090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:34,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13153 states to 13153 states and 70090 transitions. [2021-06-05 13:43:34,333 INFO L78 Accepts]: Start accepts. Automaton has 13153 states and 70090 transitions. Word has length 33 [2021-06-05 13:43:34,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:43:34,333 INFO L482 AbstractCegarLoop]: Abstraction has 13153 states and 70090 transitions. [2021-06-05 13:43:34,333 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:34,333 INFO L276 IsEmpty]: Start isEmpty. Operand 13153 states and 70090 transitions. [2021-06-05 13:43:34,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:43:34,358 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:43:34,358 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:43:34,358 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable366 [2021-06-05 13:43:34,358 INFO L430 AbstractCegarLoop]: === Iteration 368 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:43:34,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:43:34,359 INFO L82 PathProgramCache]: Analyzing trace with hash 60744253, now seen corresponding path program 361 times [2021-06-05 13:43:34,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:43:34,359 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971241675] [2021-06-05 13:43:34,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:43:34,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:43:34,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:43:34,495 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:43:34,495 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971241675] [2021-06-05 13:43:34,495 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971241675] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:43:34,495 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:43:34,495 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:43:34,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353648059] [2021-06-05 13:43:34,495 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:43:34,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:43:34,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:43:34,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:43:34,496 INFO L87 Difference]: Start difference. First operand 13153 states and 70090 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:34,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:43:34,726 INFO L93 Difference]: Finished difference Result 30141 states and 151826 transitions. [2021-06-05 13:43:34,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:43:34,726 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:43:34,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:43:34,809 INFO L225 Difference]: With dead ends: 30141 [2021-06-05 13:43:34,809 INFO L226 Difference]: Without dead ends: 29382 [2021-06-05 13:43:34,809 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:43:35,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29382 states. [2021-06-05 13:43:35,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29382 to 13371. [2021-06-05 13:43:36,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13371 states, 13370 states have (on average 5.3225878833208675) internal successors, (71163), 13370 states have internal predecessors, (71163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:36,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13371 states to 13371 states and 71163 transitions. [2021-06-05 13:43:36,050 INFO L78 Accepts]: Start accepts. Automaton has 13371 states and 71163 transitions. Word has length 33 [2021-06-05 13:43:36,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:43:36,050 INFO L482 AbstractCegarLoop]: Abstraction has 13371 states and 71163 transitions. [2021-06-05 13:43:36,051 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:36,051 INFO L276 IsEmpty]: Start isEmpty. Operand 13371 states and 71163 transitions. [2021-06-05 13:43:36,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:43:36,077 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:43:36,077 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:43:36,077 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable367 [2021-06-05 13:43:36,077 INFO L430 AbstractCegarLoop]: === Iteration 369 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:43:36,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:43:36,077 INFO L82 PathProgramCache]: Analyzing trace with hash -786052709, now seen corresponding path program 362 times [2021-06-05 13:43:36,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:43:36,078 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707272992] [2021-06-05 13:43:36,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:43:36,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:43:36,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:43:36,214 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:43:36,214 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707272992] [2021-06-05 13:43:36,214 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707272992] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:43:36,214 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:43:36,214 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:43:36,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454240350] [2021-06-05 13:43:36,214 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:43:36,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:43:36,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:43:36,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:43:36,215 INFO L87 Difference]: Start difference. First operand 13371 states and 71163 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:36,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:43:36,432 INFO L93 Difference]: Finished difference Result 30133 states and 151678 transitions. [2021-06-05 13:43:36,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:43:36,432 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:43:36,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:43:36,518 INFO L225 Difference]: With dead ends: 30133 [2021-06-05 13:43:36,518 INFO L226 Difference]: Without dead ends: 29262 [2021-06-05 13:43:36,518 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 164.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:43:37,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29262 states. [2021-06-05 13:43:37,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29262 to 13251. [2021-06-05 13:43:37,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13251 states, 13250 states have (on average 5.329433962264151) internal successors, (70615), 13250 states have internal predecessors, (70615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:37,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13251 states to 13251 states and 70615 transitions. [2021-06-05 13:43:37,787 INFO L78 Accepts]: Start accepts. Automaton has 13251 states and 70615 transitions. Word has length 33 [2021-06-05 13:43:37,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:43:37,787 INFO L482 AbstractCegarLoop]: Abstraction has 13251 states and 70615 transitions. [2021-06-05 13:43:37,787 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:37,788 INFO L276 IsEmpty]: Start isEmpty. Operand 13251 states and 70615 transitions. [2021-06-05 13:43:37,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:43:37,813 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:43:37,813 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:43:37,813 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable368 [2021-06-05 13:43:37,814 INFO L430 AbstractCegarLoop]: === Iteration 370 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:43:37,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:43:37,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1962317285, now seen corresponding path program 363 times [2021-06-05 13:43:37,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:43:37,814 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804908657] [2021-06-05 13:43:37,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:43:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:43:37,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:43:37,950 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:43:37,950 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804908657] [2021-06-05 13:43:37,950 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804908657] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:43:37,950 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:43:37,950 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:43:37,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725571453] [2021-06-05 13:43:37,950 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:43:37,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:43:37,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:43:37,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:43:37,950 INFO L87 Difference]: Start difference. First operand 13251 states and 70615 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:38,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:43:38,356 INFO L93 Difference]: Finished difference Result 30117 states and 151670 transitions. [2021-06-05 13:43:38,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:43:38,356 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:43:38,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:43:38,443 INFO L225 Difference]: With dead ends: 30117 [2021-06-05 13:43:38,443 INFO L226 Difference]: Without dead ends: 29358 [2021-06-05 13:43:38,443 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 184.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:43:39,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29358 states. [2021-06-05 13:43:39,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29358 to 13363. [2021-06-05 13:43:39,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13363 states, 13362 states have (on average 5.319488100583745) internal successors, (71079), 13362 states have internal predecessors, (71079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:39,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13363 states to 13363 states and 71079 transitions. [2021-06-05 13:43:39,489 INFO L78 Accepts]: Start accepts. Automaton has 13363 states and 71079 transitions. Word has length 33 [2021-06-05 13:43:39,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:43:39,489 INFO L482 AbstractCegarLoop]: Abstraction has 13363 states and 71079 transitions. [2021-06-05 13:43:39,489 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:39,489 INFO L276 IsEmpty]: Start isEmpty. Operand 13363 states and 71079 transitions. [2021-06-05 13:43:39,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 13:43:39,515 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:43:39,515 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:43:39,515 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable369 [2021-06-05 13:43:39,515 INFO L430 AbstractCegarLoop]: === Iteration 371 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:43:39,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:43:39,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1536623131, now seen corresponding path program 364 times [2021-06-05 13:43:39,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:43:39,515 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347147362] [2021-06-05 13:43:39,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:43:39,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:43:39,752 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-06-05 13:43:39,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:43:39,780 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:43:39,780 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347147362] [2021-06-05 13:43:39,780 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347147362] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:43:39,780 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:43:39,780 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 13:43:39,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019608745] [2021-06-05 13:43:39,780 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 13:43:39,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:43:39,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 13:43:39,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 13:43:39,781 INFO L87 Difference]: Start difference. First operand 13363 states and 71079 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:40,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:43:40,005 INFO L93 Difference]: Finished difference Result 30093 states and 151466 transitions. [2021-06-05 13:43:40,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 13:43:40,005 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 13:43:40,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:43:40,097 INFO L225 Difference]: With dead ends: 30093 [2021-06-05 13:43:40,097 INFO L226 Difference]: Without dead ends: 29246 [2021-06-05 13:43:40,098 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 293.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:43:40,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29246 states. [2021-06-05 13:43:41,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29246 to 13251. [2021-06-05 13:43:41,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13251 states, 13250 states have (on average 5.3252075471698115) internal successors, (70559), 13250 states have internal predecessors, (70559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2021-06-05 13:43:41,326 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable370 [2021-06-05 13:43:41,326 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-05 13:43:41,328 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 13:43:41,329 WARN L196 ceAbstractionStarter]: Timeout [2021-06-05 13:43:41,329 INFO L202 PluginConnector]: Adding new model example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 01:43:41 BasicIcfg [2021-06-05 13:43:41,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 13:43:41,330 INFO L168 Benchmark]: Toolchain (without parser) took 720694.26 ms. Allocated memory was 339.7 MB in the beginning and 16.0 GB in the end (delta: 15.7 GB). Free memory was 319.5 MB in the beginning and 10.0 GB in the end (delta: -9.7 GB). Peak memory consumption was 6.7 GB. Max. memory is 16.0 GB. [2021-06-05 13:43:41,330 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 339.7 MB. Free memory was 320.6 MB in the beginning and 320.5 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 13:43:41,330 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.25 ms. Allocated memory is still 339.7 MB. Free memory was 319.4 MB in the beginning and 317.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 13:43:41,330 INFO L168 Benchmark]: Boogie Preprocessor took 16.53 ms. Allocated memory is still 339.7 MB. Free memory was 317.9 MB in the beginning and 317.0 MB in the end (delta: 919.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 13:43:41,330 INFO L168 Benchmark]: RCFGBuilder took 236.72 ms. Allocated memory is still 339.7 MB. Free memory was 316.9 MB in the beginning and 305.2 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-06-05 13:43:41,330 INFO L168 Benchmark]: TraceAbstraction took 720411.27 ms. Allocated memory was 339.7 MB in the beginning and 16.0 GB in the end (delta: 15.7 GB). Free memory was 304.8 MB in the beginning and 10.0 GB in the end (delta: -9.7 GB). Peak memory consumption was 6.7 GB. Max. memory is 16.0 GB. [2021-06-05 13:43:41,331 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 339.7 MB. Free memory was 320.6 MB in the beginning and 320.5 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 23.25 ms. Allocated memory is still 339.7 MB. Free memory was 319.4 MB in the beginning and 317.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 16.53 ms. Allocated memory is still 339.7 MB. Free memory was 317.9 MB in the beginning and 317.0 MB in the end (delta: 919.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 236.72 ms. Allocated memory is still 339.7 MB. Free memory was 316.9 MB in the beginning and 305.2 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 720411.27 ms. Allocated memory was 339.7 MB in the beginning and 16.0 GB in the end (delta: 15.7 GB). Free memory was 304.8 MB in the beginning and 10.0 GB in the end (delta: -9.7 GB). Peak memory consumption was 6.7 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 15]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while ReachableStatesComputation was computing reachable states (10090 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 16]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while ReachableStatesComputation was computing reachable states (10090 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 10]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while ReachableStatesComputation was computing reachable states (10090 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 14]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while ReachableStatesComputation was computing reachable states (10090 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while ReachableStatesComputation was computing reachable states (10090 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 13]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while ReachableStatesComputation was computing reachable states (10090 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 17]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while ReachableStatesComputation was computing reachable states (10090 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 29]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while ReachableStatesComputation was computing reachable states (10090 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 18]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while ReachableStatesComputation was computing reachable states (10090 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 17 procedures, 76 locations, 9 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 720260.8ms, OverallIterations: 371, TraceHistogramMax: 1, EmptinessCheckTime: 12572.1ms, AutomataDifference: 155263.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11229.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 58331 SDtfs, 72324 SDslu, 148705 SDs, 0 SdLazy, 25656 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16765.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3661 GetRequests, 378 SyntacticMatches, 0 SemanticMatches, 3283 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2184 ImplicationChecksByTransitivity, 70605.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=68819occurred in iteration=0, InterpolantAutomatonStates: 3661, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 476497.6ms AutomataMinimizationTime, 371 MinimizatonAttempts, 6367241 StatesRemovedByMinimization, 363 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 127.9ms SsaConstructionTime, 280.5ms SatisfiabilityAnalysisTime, 63076.2ms InterpolantComputationTime, 12243 NumberOfCodeBlocks, 12243 NumberOfCodeBlocksAsserted, 371 NumberOfCheckSat, 11872 ConstructedInterpolants, 0 QuantifiedInterpolants, 418678 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 371 InterpolantComputations, 371 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown