/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_9.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-21 20:24:41,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-21 20:24:41,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-21 20:24:41,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-21 20:24:41,149 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.epf [2021-05-21 20:24:41,183 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-21 20:24:41,184 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-21 20:24:41,184 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-21 20:24:41,184 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-21 20:24:41,186 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-21 20:24:41,187 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-21 20:24:41,187 INFO L138 SettingsManager]: * Use SBE=true [2021-05-21 20:24:41,187 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-21 20:24:41,187 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-21 20:24:41,187 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-21 20:24:41,188 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-21 20:24:41,188 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-21 20:24:41,189 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-21 20:24:41,189 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-21 20:24:41,189 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-21 20:24:41,189 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-21 20:24:41,189 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-21 20:24:41,189 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-21 20:24:41,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-21 20:24:41,190 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-21 20:24:41,190 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-21 20:24:41,190 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-21 20:24:41,190 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-21 20:24:41,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 20:24:41,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-21 20:24:41,191 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-21 20:24:41,191 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-21 20:24:41,191 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-21 20:24:41,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-21 20:24:41,191 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-21 20:24:41,191 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-21 20:24:41,191 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-21 20:24:41,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-21 20:24:41,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-21 20:24:41,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-21 20:24:41,503 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-05-21 20:24:41,504 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-05-21 20:24:41,505 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_9.bpl [2021-05-21 20:24:41,505 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_9.bpl' [2021-05-21 20:24:41,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-21 20:24:41,532 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-21 20:24:41,532 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-21 20:24:41,533 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-21 20:24:41,533 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-21 20:24:41,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.05 08:24:41" (1/1) ... [2021-05-21 20:24:41,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.05 08:24:41" (1/1) ... [2021-05-21 20:24:41,557 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-21 20:24:41,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-21 20:24:41,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-21 20:24:41,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-21 20:24:41,565 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.05 08:24:41" (1/1) ... [2021-05-21 20:24:41,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.05 08:24:41" (1/1) ... [2021-05-21 20:24:41,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.05 08:24:41" (1/1) ... [2021-05-21 20:24:41,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.05 08:24:41" (1/1) ... [2021-05-21 20:24:41,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.05 08:24:41" (1/1) ... [2021-05-21 20:24:41,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.05 08:24:41" (1/1) ... [2021-05-21 20:24:41,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.05 08:24:41" (1/1) ... [2021-05-21 20:24:41,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-21 20:24:41,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-21 20:24:41,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-21 20:24:41,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-21 20:24:41,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.05 08:24:41" (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 [2021-05-21 20:24:41,626 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-05-21 20:24:41,627 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-05-21 20:24:41,627 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-05-21 20:24:41,627 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-05-21 20:24:41,627 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-05-21 20:24:41,627 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-05-21 20:24:41,627 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-05-21 20:24:41,628 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-05-21 20:24:41,628 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-05-21 20:24:41,628 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-05-21 20:24:41,628 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-05-21 20:24:41,628 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-05-21 20:24:41,628 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-05-21 20:24:41,628 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-05-21 20:24:41,629 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-05-21 20:24:41,629 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-05-21 20:24:41,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-21 20:24:41,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-21 20:24:41,629 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-05-21 20:24:41,629 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-05-21 20:24:41,629 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-05-21 20:24:41,630 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-05-21 20:24:41,630 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-05-21 20:24:41,630 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-05-21 20:24:41,630 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-05-21 20:24:41,630 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-05-21 20:24:41,630 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-05-21 20:24:41,631 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2021-05-21 20:24:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2021-05-21 20:24:41,631 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2021-05-21 20:24:41,632 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-21 20:24:41,793 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-21 20:24:41,793 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-05-21 20:24:41,795 INFO L202 PluginConnector]: Adding new model example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 08:24:41 BoogieIcfgContainer [2021-05-21 20:24:41,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-21 20:24:41,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-21 20:24:41,796 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-21 20:24:41,798 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-21 20:24:41,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.05 08:24:41" (1/2) ... [2021-05-21 20:24:41,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4321dfad and model type example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 08:24:41, skipping insertion in model container [2021-05-21 20:24:41,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 08:24:41" (2/2) ... [2021-05-21 20:24:41,800 INFO L111 eAbstractionObserver]: Analyzing ICFG example_9.bpl [2021-05-21 20:24:41,805 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-21 20:24:41,805 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-21 20:24:41,805 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-05-21 20:24:41,806 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-21 20:24:42,002 INFO L149 ThreadInstanceAdder]: Constructed 81 joinOtherThreadTransitions. [2021-05-21 20:24:42,021 INFO L255 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-05-21 20:24:42,035 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 20:24:42,036 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 20:24:42,036 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 20:24:42,036 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 20:24:42,036 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 20:24:42,036 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 20:24:42,036 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 20:24:42,036 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 20:24:42,046 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 76 places, 120 transitions, 528 flow [2021-05-21 20:27:45,021 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 271988 states, 271986 states have (on average 6.722860735479032) internal successors, (1828524), 271987 states have internal predecessors, (1828524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:27:45,659 INFO L276 IsEmpty]: Start isEmpty. Operand has 271988 states, 271986 states have (on average 6.722860735479032) internal successors, (1828524), 271987 states have internal predecessors, (1828524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:27:47,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:27:47,601 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:27:47,602 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 20:27:47,602 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:27:47,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:27:47,606 INFO L82 PathProgramCache]: Analyzing trace with hash -579927567, now seen corresponding path program 1 times [2021-05-21 20:27:47,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:27:47,612 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908521896] [2021-05-21 20:27:47,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:27:47,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:27:47,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:27:47,736 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:27:47,737 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908521896] [2021-05-21 20:27:47,737 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908521896] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:27:47,737 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:27:47,738 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-21 20:27:47,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003489017] [2021-05-21 20:27:47,741 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-21 20:27:47,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:27:47,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-21 20:27:47,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-21 20:27:48,361 INFO L87 Difference]: Start difference. First operand has 271988 states, 271986 states have (on average 6.722860735479032) internal successors, (1828524), 271987 states have internal predecessors, (1828524), 0 states have call successors, (0), 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 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:27:52,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:27:52,301 INFO L93 Difference]: Finished difference Result 247931 states and 1629507 transitions. [2021-05-21 20:27:52,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-21 20:27:52,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:27:52,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:27:55,979 INFO L225 Difference]: With dead ends: 247931 [2021-05-21 20:27:55,980 INFO L226 Difference]: Without dead ends: 247929 [2021-05-21 20:27:55,982 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-21 20:28:12,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247929 states. [2021-05-21 20:28:21,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247929 to 247929. [2021-05-21 20:28:22,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247929 states, 247928 states have (on average 6.572492820496273) internal successors, (1629505), 247928 states have internal predecessors, (1629505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:28:25,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247929 states to 247929 states and 1629505 transitions. [2021-05-21 20:28:25,220 INFO L78 Accepts]: Start accepts. Automaton has 247929 states and 1629505 transitions. Word has length 37 [2021-05-21 20:28:25,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:28:25,221 INFO L482 AbstractCegarLoop]: Abstraction has 247929 states and 1629505 transitions. [2021-05-21 20:28:25,221 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:28:25,222 INFO L276 IsEmpty]: Start isEmpty. Operand 247929 states and 1629505 transitions. [2021-05-21 20:28:26,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:28:26,935 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:28:26,936 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, 1, 1, 1, 1] [2021-05-21 20:28:26,936 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-21 20:28:26,936 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:28:26,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:28:26,941 INFO L82 PathProgramCache]: Analyzing trace with hash 65929237, now seen corresponding path program 1 times [2021-05-21 20:28:26,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:28:26,941 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444044079] [2021-05-21 20:28:26,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:28:26,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:28:26,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:28:26,996 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:28:26,996 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444044079] [2021-05-21 20:28:26,996 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444044079] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:28:26,996 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:28:26,996 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-21 20:28:26,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839879647] [2021-05-21 20:28:26,998 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-21 20:28:26,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:28:26,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-21 20:28:26,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-21 20:28:26,999 INFO L87 Difference]: Start difference. First operand 247929 states and 1629505 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:28:29,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:28:29,926 INFO L93 Difference]: Finished difference Result 205647 states and 1312390 transitions. [2021-05-21 20:28:29,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-21 20:28:29,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:28:29,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:28:31,204 INFO L225 Difference]: With dead ends: 205647 [2021-05-21 20:28:31,204 INFO L226 Difference]: Without dead ends: 205647 [2021-05-21 20:28:31,205 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-21 20:28:44,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205647 states. [2021-05-21 20:28:50,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205647 to 205647. [2021-05-21 20:28:50,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205647 states, 205646 states have (on average 6.381792011514934) internal successors, (1312390), 205646 states have internal predecessors, (1312390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:28:53,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205647 states to 205647 states and 1312390 transitions. [2021-05-21 20:28:53,113 INFO L78 Accepts]: Start accepts. Automaton has 205647 states and 1312390 transitions. Word has length 37 [2021-05-21 20:28:53,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:28:53,113 INFO L482 AbstractCegarLoop]: Abstraction has 205647 states and 1312390 transitions. [2021-05-21 20:28:53,113 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:28:53,113 INFO L276 IsEmpty]: Start isEmpty. Operand 205647 states and 1312390 transitions. [2021-05-21 20:28:55,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:28:55,109 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:28:55,109 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, 1, 1, 1, 1] [2021-05-21 20:28:55,109 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-21 20:28:55,110 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:28:55,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:28:55,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1044527641, now seen corresponding path program 1 times [2021-05-21 20:28:55,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:28:55,126 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121737130] [2021-05-21 20:28:55,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:28:55,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:28:55,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:28:55,206 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:28:55,206 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121737130] [2021-05-21 20:28:55,206 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121737130] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:28:55,206 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:28:55,206 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-21 20:28:55,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829802125] [2021-05-21 20:28:55,207 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-21 20:28:55,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:28:55,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-21 20:28:55,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-21 20:28:55,208 INFO L87 Difference]: Start difference. First operand 205647 states and 1312390 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:28:58,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:28:58,086 INFO L93 Difference]: Finished difference Result 199086 states and 1257715 transitions. [2021-05-21 20:28:58,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-21 20:28:58,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:28:58,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:29:01,025 INFO L225 Difference]: With dead ends: 199086 [2021-05-21 20:29:01,026 INFO L226 Difference]: Without dead ends: 199086 [2021-05-21 20:29:01,026 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-21 20:29:15,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199086 states. [2021-05-21 20:29:20,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199086 to 199086. [2021-05-21 20:29:21,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199086 states, 199085 states have (on average 6.317477459376648) internal successors, (1257715), 199085 states have internal predecessors, (1257715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:29:23,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199086 states to 199086 states and 1257715 transitions. [2021-05-21 20:29:23,080 INFO L78 Accepts]: Start accepts. Automaton has 199086 states and 1257715 transitions. Word has length 37 [2021-05-21 20:29:23,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:29:23,080 INFO L482 AbstractCegarLoop]: Abstraction has 199086 states and 1257715 transitions. [2021-05-21 20:29:23,080 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:29:23,080 INFO L276 IsEmpty]: Start isEmpty. Operand 199086 states and 1257715 transitions. [2021-05-21 20:29:24,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:29:24,516 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:29:24,516 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, 1, 1, 1, 1] [2021-05-21 20:29:24,516 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-21 20:29:24,516 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:29:24,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:29:24,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1663480717, now seen corresponding path program 1 times [2021-05-21 20:29:24,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:29:24,517 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36674967] [2021-05-21 20:29:24,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:29:24,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:29:24,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:29:24,539 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:29:24,539 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36674967] [2021-05-21 20:29:24,540 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36674967] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:29:24,540 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:29:24,540 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-21 20:29:24,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102577588] [2021-05-21 20:29:24,540 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-21 20:29:24,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:29:24,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-21 20:29:24,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-21 20:29:24,541 INFO L87 Difference]: Start difference. First operand 199086 states and 1257715 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:29:26,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:29:26,541 INFO L93 Difference]: Finished difference Result 144816 states and 896941 transitions. [2021-05-21 20:29:26,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-21 20:29:26,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:29:26,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:29:27,733 INFO L225 Difference]: With dead ends: 144816 [2021-05-21 20:29:27,734 INFO L226 Difference]: Without dead ends: 144816 [2021-05-21 20:29:27,734 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 [2021-05-21 20:29:39,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144816 states. [2021-05-21 20:29:42,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144816 to 144816. [2021-05-21 20:29:43,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144816 states, 144815 states have (on average 6.1937023098435935) internal successors, (896941), 144815 states have internal predecessors, (896941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:29:44,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144816 states to 144816 states and 896941 transitions. [2021-05-21 20:29:44,642 INFO L78 Accepts]: Start accepts. Automaton has 144816 states and 896941 transitions. Word has length 37 [2021-05-21 20:29:44,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:29:44,642 INFO L482 AbstractCegarLoop]: Abstraction has 144816 states and 896941 transitions. [2021-05-21 20:29:44,642 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:29:44,643 INFO L276 IsEmpty]: Start isEmpty. Operand 144816 states and 896941 transitions. [2021-05-21 20:29:45,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:29:45,085 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:29:45,086 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 20:29:45,086 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-21 20:29:45,086 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:29:45,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:29:45,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1563653977, now seen corresponding path program 1 times [2021-05-21 20:29:45,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:29:45,087 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411066217] [2021-05-21 20:29:45,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:29:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:29:45,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:29:45,112 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:29:45,112 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411066217] [2021-05-21 20:29:45,112 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411066217] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:29:45,112 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:29:45,112 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-21 20:29:45,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49374948] [2021-05-21 20:29:45,112 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-21 20:29:45,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:29:45,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-21 20:29:45,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-21 20:29:45,113 INFO L87 Difference]: Start difference. First operand 144816 states and 896941 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:29:46,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:29:46,648 INFO L93 Difference]: Finished difference Result 107880 states and 652645 transitions. [2021-05-21 20:29:46,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-21 20:29:46,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:29:46,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:29:47,602 INFO L225 Difference]: With dead ends: 107880 [2021-05-21 20:29:47,603 INFO L226 Difference]: Without dead ends: 107880 [2021-05-21 20:29:47,603 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 [2021-05-21 20:29:55,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107880 states. [2021-05-21 20:29:57,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107880 to 107880. [2021-05-21 20:29:57,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107880 states, 107879 states have (on average 6.049787261654261) internal successors, (652645), 107879 states have internal predecessors, (652645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:29:59,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107880 states to 107880 states and 652645 transitions. [2021-05-21 20:29:59,280 INFO L78 Accepts]: Start accepts. Automaton has 107880 states and 652645 transitions. Word has length 37 [2021-05-21 20:29:59,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:29:59,280 INFO L482 AbstractCegarLoop]: Abstraction has 107880 states and 652645 transitions. [2021-05-21 20:29:59,281 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:29:59,281 INFO L276 IsEmpty]: Start isEmpty. Operand 107880 states and 652645 transitions. [2021-05-21 20:29:59,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:29:59,590 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:29:59,590 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, 1, 1, 1, 1] [2021-05-21 20:29:59,590 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-21 20:29:59,590 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:29:59,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:29:59,591 INFO L82 PathProgramCache]: Analyzing trace with hash 673733085, now seen corresponding path program 1 times [2021-05-21 20:29:59,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:29:59,591 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519529426] [2021-05-21 20:29:59,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:29:59,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:29:59,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:29:59,617 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:29:59,617 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519529426] [2021-05-21 20:29:59,617 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519529426] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:29:59,617 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:29:59,617 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-21 20:29:59,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008904269] [2021-05-21 20:29:59,617 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-21 20:29:59,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:29:59,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-21 20:29:59,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-21 20:29:59,618 INFO L87 Difference]: Start difference. First operand 107880 states and 652645 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:30:00,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:30:00,801 INFO L93 Difference]: Finished difference Result 76074 states and 457273 transitions. [2021-05-21 20:30:00,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-21 20:30:00,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:30:00,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:30:01,176 INFO L225 Difference]: With dead ends: 76074 [2021-05-21 20:30:01,176 INFO L226 Difference]: Without dead ends: 76074 [2021-05-21 20:30:01,176 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 [2021-05-21 20:30:08,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76074 states. [2021-05-21 20:30:10,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76074 to 76074. [2021-05-21 20:30:10,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76074 states, 76073 states have (on average 6.010976299081146) internal successors, (457273), 76073 states have internal predecessors, (457273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:30:11,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76074 states to 76074 states and 457273 transitions. [2021-05-21 20:30:11,019 INFO L78 Accepts]: Start accepts. Automaton has 76074 states and 457273 transitions. Word has length 37 [2021-05-21 20:30:11,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:30:11,019 INFO L482 AbstractCegarLoop]: Abstraction has 76074 states and 457273 transitions. [2021-05-21 20:30:11,019 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:30:11,019 INFO L276 IsEmpty]: Start isEmpty. Operand 76074 states and 457273 transitions. [2021-05-21 20:30:11,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:30:11,212 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:30:11,212 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, 1, 1, 1, 1] [2021-05-21 20:30:11,212 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-21 20:30:11,212 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:30:11,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:30:11,213 INFO L82 PathProgramCache]: Analyzing trace with hash -295306595, now seen corresponding path program 1 times [2021-05-21 20:30:11,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:30:11,213 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560950137] [2021-05-21 20:30:11,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:30:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:30:11,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:30:11,237 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:30:11,237 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560950137] [2021-05-21 20:30:11,237 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560950137] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:30:11,237 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:30:11,237 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-21 20:30:11,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861530907] [2021-05-21 20:30:11,238 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-21 20:30:11,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:30:11,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-21 20:30:11,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-21 20:30:11,238 INFO L87 Difference]: Start difference. First operand 76074 states and 457273 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:30:12,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:30:12,281 INFO L93 Difference]: Finished difference Result 54114 states and 324757 transitions. [2021-05-21 20:30:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-21 20:30:12,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:30:12,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:30:12,587 INFO L225 Difference]: With dead ends: 54114 [2021-05-21 20:30:12,587 INFO L226 Difference]: Without dead ends: 54114 [2021-05-21 20:30:12,587 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 [2021-05-21 20:30:19,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54114 states. [2021-05-21 20:30:19,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54114 to 54114. [2021-05-21 20:30:20,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54114 states, 54113 states have (on average 6.001459907970358) internal successors, (324757), 54113 states have internal predecessors, (324757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:30:20,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54114 states to 54114 states and 324757 transitions. [2021-05-21 20:30:20,725 INFO L78 Accepts]: Start accepts. Automaton has 54114 states and 324757 transitions. Word has length 37 [2021-05-21 20:30:20,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:30:20,726 INFO L482 AbstractCegarLoop]: Abstraction has 54114 states and 324757 transitions. [2021-05-21 20:30:20,726 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:30:20,726 INFO L276 IsEmpty]: Start isEmpty. Operand 54114 states and 324757 transitions. [2021-05-21 20:30:20,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:30:20,875 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:30:20,875 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 20:30:20,875 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-05-21 20:30:20,876 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:30:20,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:30:20,876 INFO L82 PathProgramCache]: Analyzing trace with hash 857199773, now seen corresponding path program 1 times [2021-05-21 20:30:20,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:30:20,876 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764955345] [2021-05-21 20:30:20,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:30:20,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:30:21,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:30:21,430 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:30:21,430 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764955345] [2021-05-21 20:30:21,430 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764955345] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:30:21,430 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:30:21,430 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-21 20:30:21,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220366067] [2021-05-21 20:30:21,430 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 20:30:21,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:30:21,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 20:30:21,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-05-21 20:30:21,431 INFO L87 Difference]: Start difference. First operand 54114 states and 324757 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:30:23,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:30:23,434 INFO L93 Difference]: Finished difference Result 141637 states and 796695 transitions. [2021-05-21 20:30:23,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 20:30:23,434 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:30:23,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:30:24,596 INFO L225 Difference]: With dead ends: 141637 [2021-05-21 20:30:24,596 INFO L226 Difference]: Without dead ends: 138843 [2021-05-21 20:30:24,597 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 295.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-05-21 20:30:32,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138843 states. [2021-05-21 20:30:34,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138843 to 55328. [2021-05-21 20:30:34,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55328 states, 55327 states have (on average 5.981690675438755) internal successors, (330949), 55327 states have internal predecessors, (330949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:30:35,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55328 states to 55328 states and 330949 transitions. [2021-05-21 20:30:35,197 INFO L78 Accepts]: Start accepts. Automaton has 55328 states and 330949 transitions. Word has length 37 [2021-05-21 20:30:35,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:30:35,197 INFO L482 AbstractCegarLoop]: Abstraction has 55328 states and 330949 transitions. [2021-05-21 20:30:35,197 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:30:35,197 INFO L276 IsEmpty]: Start isEmpty. Operand 55328 states and 330949 transitions. [2021-05-21 20:30:35,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:30:35,335 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:30:35,335 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 20:30:35,335 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-05-21 20:30:35,335 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:30:35,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:30:35,336 INFO L82 PathProgramCache]: Analyzing trace with hash -732734977, now seen corresponding path program 2 times [2021-05-21 20:30:35,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:30:35,336 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322065215] [2021-05-21 20:30:35,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:30:35,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:30:35,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:30:35,690 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:30:35,690 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322065215] [2021-05-21 20:30:35,690 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322065215] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:30:35,690 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:30:35,690 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-21 20:30:35,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940168444] [2021-05-21 20:30:35,691 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 20:30:35,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:30:35,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 20:30:35,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-05-21 20:30:35,691 INFO L87 Difference]: Start difference. First operand 55328 states and 330949 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:30:36,717 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2021-05-21 20:30:37,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:30:37,404 INFO L93 Difference]: Finished difference Result 141875 states and 797558 transitions. [2021-05-21 20:30:37,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 20:30:37,405 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:30:37,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:30:38,631 INFO L225 Difference]: With dead ends: 141875 [2021-05-21 20:30:38,632 INFO L226 Difference]: Without dead ends: 138332 [2021-05-21 20:30:38,632 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 952.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-05-21 20:30:45,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138332 states. [2021-05-21 20:30:47,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138332 to 54817. [2021-05-21 20:30:47,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54817 states, 54816 states have (on average 5.990787361354349) internal successors, (328391), 54816 states have internal predecessors, (328391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:30:48,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54817 states to 54817 states and 328391 transitions. [2021-05-21 20:30:48,486 INFO L78 Accepts]: Start accepts. Automaton has 54817 states and 328391 transitions. Word has length 37 [2021-05-21 20:30:48,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:30:48,486 INFO L482 AbstractCegarLoop]: Abstraction has 54817 states and 328391 transitions. [2021-05-21 20:30:48,504 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:30:48,505 INFO L276 IsEmpty]: Start isEmpty. Operand 54817 states and 328391 transitions. [2021-05-21 20:30:48,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:30:48,826 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:30:48,826 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 20:30:48,826 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-05-21 20:30:48,826 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:30:48,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:30:48,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1938262399, now seen corresponding path program 3 times [2021-05-21 20:30:48,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:30:48,827 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132746498] [2021-05-21 20:30:48,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:30:48,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:30:49,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:30:49,143 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:30:49,143 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132746498] [2021-05-21 20:30:49,143 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132746498] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:30:49,143 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:30:49,143 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-21 20:30:49,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886156079] [2021-05-21 20:30:49,143 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 20:30:49,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:30:49,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 20:30:49,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-05-21 20:30:49,144 INFO L87 Difference]: Start difference. First operand 54817 states and 328391 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:30:50,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:30:50,848 INFO L93 Difference]: Finished difference Result 141494 states and 795819 transitions. [2021-05-21 20:30:50,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 20:30:50,849 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:30:50,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:30:51,435 INFO L225 Difference]: With dead ends: 141494 [2021-05-21 20:30:51,435 INFO L226 Difference]: Without dead ends: 138700 [2021-05-21 20:30:51,435 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 271.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-05-21 20:30:58,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138700 states. [2021-05-21 20:31:00,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138700 to 55199. [2021-05-21 20:31:00,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55199 states, 55198 states have (on average 5.980579006485742) internal successors, (330116), 55198 states have internal predecessors, (330116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:31:00,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55199 states to 55199 states and 330116 transitions. [2021-05-21 20:31:00,960 INFO L78 Accepts]: Start accepts. Automaton has 55199 states and 330116 transitions. Word has length 37 [2021-05-21 20:31:00,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:31:00,961 INFO L482 AbstractCegarLoop]: Abstraction has 55199 states and 330116 transitions. [2021-05-21 20:31:00,961 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:31:00,961 INFO L276 IsEmpty]: Start isEmpty. Operand 55199 states and 330116 transitions. [2021-05-21 20:31:01,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:31:01,096 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:31:01,096 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, 1, 1, 1, 1] [2021-05-21 20:31:01,096 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-05-21 20:31:01,096 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:31:01,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:31:01,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1348406913, now seen corresponding path program 4 times [2021-05-21 20:31:01,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:31:01,097 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275972824] [2021-05-21 20:31:01,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:31:01,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:31:01,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:31:01,388 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:31:01,389 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275972824] [2021-05-21 20:31:01,389 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275972824] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:31:01,389 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:31:01,389 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-21 20:31:01,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602935199] [2021-05-21 20:31:01,390 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 20:31:01,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:31:01,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 20:31:01,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-05-21 20:31:01,392 INFO L87 Difference]: Start difference. First operand 55199 states and 330116 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:31:02,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:31:02,949 INFO L93 Difference]: Finished difference Result 141718 states and 796641 transitions. [2021-05-21 20:31:02,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 20:31:02,950 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:31:02,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:31:04,175 INFO L225 Difference]: With dead ends: 141718 [2021-05-21 20:31:04,175 INFO L226 Difference]: Without dead ends: 138318 [2021-05-21 20:31:04,175 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 324.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-05-21 20:31:11,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138318 states. [2021-05-21 20:31:13,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138318 to 54817. [2021-05-21 20:31:13,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54817 states, 54816 states have (on average 5.9873029772329245) internal successors, (328200), 54816 states have internal predecessors, (328200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:31:13,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54817 states to 54817 states and 328200 transitions. [2021-05-21 20:31:13,913 INFO L78 Accepts]: Start accepts. Automaton has 54817 states and 328200 transitions. Word has length 37 [2021-05-21 20:31:13,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:31:13,913 INFO L482 AbstractCegarLoop]: Abstraction has 54817 states and 328200 transitions. [2021-05-21 20:31:13,913 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:31:13,913 INFO L276 IsEmpty]: Start isEmpty. Operand 54817 states and 328200 transitions. [2021-05-21 20:31:14,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:31:14,126 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:31:14,127 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 20:31:14,127 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-05-21 20:31:14,130 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:31:14,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:31:14,131 INFO L82 PathProgramCache]: Analyzing trace with hash -939542943, now seen corresponding path program 5 times [2021-05-21 20:31:14,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:31:14,131 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380110069] [2021-05-21 20:31:14,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:31:14,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:31:14,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:31:14,533 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:31:14,533 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380110069] [2021-05-21 20:31:14,533 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380110069] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:31:14,533 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:31:14,533 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-21 20:31:14,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380562999] [2021-05-21 20:31:14,534 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 20:31:14,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:31:14,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 20:31:14,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-05-21 20:31:14,535 INFO L87 Difference]: Start difference. First operand 54817 states and 328200 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:31:16,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:31:16,236 INFO L93 Difference]: Finished difference Result 142083 states and 798781 transitions. [2021-05-21 20:31:16,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 20:31:16,236 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:31:16,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:31:16,869 INFO L225 Difference]: With dead ends: 142083 [2021-05-21 20:31:16,869 INFO L226 Difference]: Without dead ends: 139051 [2021-05-21 20:31:16,869 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 302.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-05-21 20:31:24,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139051 states. [2021-05-21 20:31:26,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139051 to 55312. [2021-05-21 20:31:26,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55312 states, 55311 states have (on average 5.974815136229683) internal successors, (330473), 55311 states have internal predecessors, (330473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:31:26,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55312 states to 55312 states and 330473 transitions. [2021-05-21 20:31:26,360 INFO L78 Accepts]: Start accepts. Automaton has 55312 states and 330473 transitions. Word has length 37 [2021-05-21 20:31:26,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:31:26,360 INFO L482 AbstractCegarLoop]: Abstraction has 55312 states and 330473 transitions. [2021-05-21 20:31:26,361 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:31:26,361 INFO L276 IsEmpty]: Start isEmpty. Operand 55312 states and 330473 transitions. [2021-05-21 20:31:26,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:31:26,498 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:31:26,498 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 20:31:26,498 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-05-21 20:31:26,498 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:31:26,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:31:26,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1312087359, now seen corresponding path program 6 times [2021-05-21 20:31:26,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:31:26,498 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464028493] [2021-05-21 20:31:26,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:31:26,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:31:26,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:31:26,774 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:31:26,775 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464028493] [2021-05-21 20:31:26,775 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464028493] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:31:26,775 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:31:26,775 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-21 20:31:26,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693105024] [2021-05-21 20:31:26,775 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 20:31:26,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:31:26,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 20:31:26,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-05-21 20:31:26,776 INFO L87 Difference]: Start difference. First operand 55312 states and 330473 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:31:28,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:31:28,463 INFO L93 Difference]: Finished difference Result 142069 states and 798244 transitions. [2021-05-21 20:31:28,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 20:31:28,463 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:31:28,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:31:29,894 INFO L225 Difference]: With dead ends: 142069 [2021-05-21 20:31:29,894 INFO L226 Difference]: Without dead ends: 138237 [2021-05-21 20:31:29,894 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 317.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-05-21 20:31:37,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138237 states. [2021-05-21 20:31:38,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138237 to 54498. [2021-05-21 20:31:39,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54498 states, 54497 states have (on average 5.995963080536543) internal successors, (326762), 54497 states have internal predecessors, (326762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:31:39,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54498 states to 54498 states and 326762 transitions. [2021-05-21 20:31:39,814 INFO L78 Accepts]: Start accepts. Automaton has 54498 states and 326762 transitions. Word has length 37 [2021-05-21 20:31:39,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:31:39,814 INFO L482 AbstractCegarLoop]: Abstraction has 54498 states and 326762 transitions. [2021-05-21 20:31:39,814 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:31:39,814 INFO L276 IsEmpty]: Start isEmpty. Operand 54498 states and 326762 transitions. [2021-05-21 20:31:40,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:31:40,059 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:31:40,059 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 20:31:40,059 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-05-21 20:31:40,059 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:31:40,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:31:40,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1683646941, now seen corresponding path program 7 times [2021-05-21 20:31:40,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:31:40,059 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046511792] [2021-05-21 20:31:40,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:31:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:31:40,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:31:40,365 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:31:40,365 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046511792] [2021-05-21 20:31:40,365 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046511792] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:31:40,365 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:31:40,365 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-21 20:31:40,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961641709] [2021-05-21 20:31:40,366 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 20:31:40,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:31:40,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 20:31:40,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-05-21 20:31:40,367 INFO L87 Difference]: Start difference. First operand 54498 states and 326762 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:31:42,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:31:42,003 INFO L93 Difference]: Finished difference Result 141534 states and 796137 transitions. [2021-05-21 20:31:42,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 20:31:42,003 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:31:42,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:31:43,389 INFO L225 Difference]: With dead ends: 141534 [2021-05-21 20:31:43,390 INFO L226 Difference]: Without dead ends: 138740 [2021-05-21 20:31:43,390 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 255.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-05-21 20:31:52,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138740 states. [2021-05-21 20:31:53,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138740 to 55263. [2021-05-21 20:31:54,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55263 states, 55262 states have (on average 5.981144366834353) internal successors, (330530), 55262 states have internal predecessors, (330530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:31:54,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55263 states to 55263 states and 330530 transitions. [2021-05-21 20:31:54,812 INFO L78 Accepts]: Start accepts. Automaton has 55263 states and 330530 transitions. Word has length 37 [2021-05-21 20:31:54,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:31:54,812 INFO L482 AbstractCegarLoop]: Abstraction has 55263 states and 330530 transitions. [2021-05-21 20:31:54,812 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:31:54,812 INFO L276 IsEmpty]: Start isEmpty. Operand 55263 states and 330530 transitions. [2021-05-21 20:31:54,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:31:54,981 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:31:54,981 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 20:31:54,981 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-05-21 20:31:54,981 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:31:54,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:31:54,981 INFO L82 PathProgramCache]: Analyzing trace with hash 93712191, now seen corresponding path program 8 times [2021-05-21 20:31:54,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:31:54,982 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611652045] [2021-05-21 20:31:54,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:31:54,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:31:55,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:31:55,246 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:31:55,246 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611652045] [2021-05-21 20:31:55,246 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611652045] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:31:55,246 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:31:55,246 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-21 20:31:55,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521212680] [2021-05-21 20:31:55,246 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 20:31:55,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:31:55,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 20:31:55,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-05-21 20:31:55,247 INFO L87 Difference]: Start difference. First operand 55263 states and 330530 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:31:56,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:31:56,878 INFO L93 Difference]: Finished difference Result 141772 states and 797000 transitions. [2021-05-21 20:31:56,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 20:31:56,878 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:31:56,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:31:57,505 INFO L225 Difference]: With dead ends: 141772 [2021-05-21 20:31:57,505 INFO L226 Difference]: Without dead ends: 138229 [2021-05-21 20:31:57,506 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 299.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-05-21 20:32:04,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138229 states. [2021-05-21 20:32:06,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138229 to 54752. [2021-05-21 20:32:06,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54752 states, 54751 states have (on average 5.990265017990539) internal successors, (327973), 54751 states have internal predecessors, (327973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:32:06,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54752 states to 54752 states and 327973 transitions. [2021-05-21 20:32:06,933 INFO L78 Accepts]: Start accepts. Automaton has 54752 states and 327973 transitions. Word has length 37 [2021-05-21 20:32:06,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:32:06,934 INFO L482 AbstractCegarLoop]: Abstraction has 54752 states and 327973 transitions. [2021-05-21 20:32:06,934 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:32:06,934 INFO L276 IsEmpty]: Start isEmpty. Operand 54752 states and 327973 transitions. [2021-05-21 20:32:07,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:32:07,079 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:32:07,080 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, 1, 1, 1, 1] [2021-05-21 20:32:07,080 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-05-21 20:32:07,080 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:32:07,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:32:07,080 INFO L82 PathProgramCache]: Analyzing trace with hash -4599331, now seen corresponding path program 9 times [2021-05-21 20:32:07,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:32:07,080 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880029008] [2021-05-21 20:32:07,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:32:07,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:32:07,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:32:07,361 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:32:07,361 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880029008] [2021-05-21 20:32:07,361 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880029008] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:32:07,361 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:32:07,361 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-21 20:32:07,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238616409] [2021-05-21 20:32:07,362 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 20:32:07,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:32:07,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 20:32:07,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-05-21 20:32:07,362 INFO L87 Difference]: Start difference. First operand 54752 states and 327973 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:32:08,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:32:08,903 INFO L93 Difference]: Finished difference Result 141365 states and 795171 transitions. [2021-05-21 20:32:08,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 20:32:08,904 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:32:08,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:32:10,158 INFO L225 Difference]: With dead ends: 141365 [2021-05-21 20:32:10,158 INFO L226 Difference]: Without dead ends: 138571 [2021-05-21 20:32:10,158 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 273.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-05-21 20:32:17,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138571 states. [2021-05-21 20:32:19,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138571 to 55132. [2021-05-21 20:32:19,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55132 states, 55131 states have (on average 5.980174493479168) internal successors, (329693), 55131 states have internal predecessors, (329693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:32:19,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55132 states to 55132 states and 329693 transitions. [2021-05-21 20:32:19,847 INFO L78 Accepts]: Start accepts. Automaton has 55132 states and 329693 transitions. Word has length 37 [2021-05-21 20:32:19,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:32:19,847 INFO L482 AbstractCegarLoop]: Abstraction has 55132 states and 329693 transitions. [2021-05-21 20:32:19,847 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:32:19,847 INFO L276 IsEmpty]: Start isEmpty. Operand 55132 states and 329693 transitions. [2021-05-21 20:32:20,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:32:20,117 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:32:20,117 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 20:32:20,118 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-05-21 20:32:20,118 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:32:20,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:32:20,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1675897309, now seen corresponding path program 10 times [2021-05-21 20:32:20,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:32:20,118 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713547277] [2021-05-21 20:32:20,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:32:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:32:20,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:32:20,459 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:32:20,459 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713547277] [2021-05-21 20:32:20,459 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713547277] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:32:20,459 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:32:20,459 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-21 20:32:20,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413047676] [2021-05-21 20:32:20,459 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 20:32:20,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:32:20,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 20:32:20,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-05-21 20:32:20,460 INFO L87 Difference]: Start difference. First operand 55132 states and 329693 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:32:22,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:32:22,094 INFO L93 Difference]: Finished difference Result 141565 states and 795911 transitions. [2021-05-21 20:32:22,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 20:32:22,094 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:32:22,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:32:22,686 INFO L225 Difference]: With dead ends: 141565 [2021-05-21 20:32:22,687 INFO L226 Difference]: Without dead ends: 138191 [2021-05-21 20:32:22,687 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 305.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-05-21 20:32:29,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138191 states. [2021-05-21 20:32:31,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138191 to 54752. [2021-05-21 20:32:31,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54752 states, 54751 states have (on average 5.986794761739511) internal successors, (327783), 54751 states have internal predecessors, (327783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:32:32,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54752 states to 54752 states and 327783 transitions. [2021-05-21 20:32:32,187 INFO L78 Accepts]: Start accepts. Automaton has 54752 states and 327783 transitions. Word has length 37 [2021-05-21 20:32:32,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:32:32,187 INFO L482 AbstractCegarLoop]: Abstraction has 54752 states and 327783 transitions. [2021-05-21 20:32:32,187 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:32:32,187 INFO L276 IsEmpty]: Start isEmpty. Operand 54752 states and 327783 transitions. [2021-05-21 20:32:32,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:32:32,328 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:32:32,328 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 20:32:32,328 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-05-21 20:32:32,328 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:32:32,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:32:32,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1412562623, now seen corresponding path program 11 times [2021-05-21 20:32:32,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:32:32,328 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935687153] [2021-05-21 20:32:32,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:32:32,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:32:32,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:32:32,596 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:32:32,596 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935687153] [2021-05-21 20:32:32,597 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935687153] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:32:32,597 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:32:32,597 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-21 20:32:32,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870807141] [2021-05-21 20:32:32,597 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 20:32:32,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:32:32,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 20:32:32,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-05-21 20:32:32,598 INFO L87 Difference]: Start difference. First operand 54752 states and 327783 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:32:34,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:32:34,090 INFO L93 Difference]: Finished difference Result 141944 states and 798093 transitions. [2021-05-21 20:32:34,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 20:32:34,090 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:32:34,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:32:35,282 INFO L225 Difference]: With dead ends: 141944 [2021-05-21 20:32:35,282 INFO L226 Difference]: Without dead ends: 138912 [2021-05-21 20:32:35,282 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 257.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-05-21 20:32:42,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138912 states. [2021-05-21 20:32:44,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138912 to 55235. [2021-05-21 20:32:44,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55235 states, 55234 states have (on average 5.974942969909838) internal successors, (330020), 55234 states have internal predecessors, (330020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:32:44,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55235 states to 55235 states and 330020 transitions. [2021-05-21 20:32:44,468 INFO L78 Accepts]: Start accepts. Automaton has 55235 states and 330020 transitions. Word has length 37 [2021-05-21 20:32:44,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:32:44,468 INFO L482 AbstractCegarLoop]: Abstraction has 55235 states and 330020 transitions. [2021-05-21 20:32:44,469 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:32:44,469 INFO L276 IsEmpty]: Start isEmpty. Operand 55235 states and 330020 transitions. [2021-05-21 20:32:45,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:32:45,236 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:32:45,236 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 20:32:45,237 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-05-21 20:32:45,237 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:32:45,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:32:45,238 INFO L82 PathProgramCache]: Analyzing trace with hash 20418077, now seen corresponding path program 12 times [2021-05-21 20:32:45,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:32:45,238 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774388649] [2021-05-21 20:32:45,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:32:45,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:32:45,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:32:45,514 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:32:45,514 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774388649] [2021-05-21 20:32:45,515 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774388649] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:32:45,515 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:32:45,515 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-21 20:32:45,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138479391] [2021-05-21 20:32:45,515 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 20:32:45,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:32:45,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 20:32:45,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-05-21 20:32:45,516 INFO L87 Difference]: Start difference. First operand 55235 states and 330020 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:32:47,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:32:47,132 INFO L93 Difference]: Finished difference Result 141906 states and 797484 transitions. [2021-05-21 20:32:47,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 20:32:47,133 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:32:47,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:32:47,760 INFO L225 Difference]: With dead ends: 141906 [2021-05-21 20:32:47,761 INFO L226 Difference]: Without dead ends: 138175 [2021-05-21 20:32:47,761 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 240.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-05-21 20:32:55,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138175 states. [2021-05-21 20:32:57,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138175 to 54498. [2021-05-21 20:32:57,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54498 states, 54497 states have (on average 5.993632677028093) internal successors, (326635), 54497 states have internal predecessors, (326635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:32:57,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54498 states to 54498 states and 326635 transitions. [2021-05-21 20:32:57,509 INFO L78 Accepts]: Start accepts. Automaton has 54498 states and 326635 transitions. Word has length 37 [2021-05-21 20:32:57,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:32:57,509 INFO L482 AbstractCegarLoop]: Abstraction has 54498 states and 326635 transitions. [2021-05-21 20:32:57,509 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:32:57,509 INFO L276 IsEmpty]: Start isEmpty. Operand 54498 states and 326635 transitions. [2021-05-21 20:32:57,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:32:57,646 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:32:57,646 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 20:32:57,646 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-05-21 20:32:57,646 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:32:57,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:32:57,647 INFO L82 PathProgramCache]: Analyzing trace with hash 2071651903, now seen corresponding path program 13 times [2021-05-21 20:32:57,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:32:57,647 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585784192] [2021-05-21 20:32:57,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:32:57,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:32:57,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:32:57,891 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:32:57,891 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585784192] [2021-05-21 20:32:57,891 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585784192] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:32:57,891 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:32:57,891 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-21 20:32:57,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657659187] [2021-05-21 20:32:57,892 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 20:32:57,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:32:57,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 20:32:57,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-05-21 20:32:57,892 INFO L87 Difference]: Start difference. First operand 54498 states and 326635 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:32:59,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:32:59,340 INFO L93 Difference]: Finished difference Result 141183 states and 794445 transitions. [2021-05-21 20:32:59,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 20:32:59,341 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:32:59,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:32:59,916 INFO L225 Difference]: With dead ends: 141183 [2021-05-21 20:32:59,916 INFO L226 Difference]: Without dead ends: 138389 [2021-05-21 20:32:59,917 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 226.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-05-21 20:33:08,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138389 states. [2021-05-21 20:33:10,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138389 to 55070. [2021-05-21 20:33:10,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55070 states, 55069 states have (on average 5.983493435508181) internal successors, (329505), 55069 states have internal predecessors, (329505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:33:10,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55070 states to 55070 states and 329505 transitions. [2021-05-21 20:33:10,706 INFO L78 Accepts]: Start accepts. Automaton has 55070 states and 329505 transitions. Word has length 37 [2021-05-21 20:33:10,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:33:10,706 INFO L482 AbstractCegarLoop]: Abstraction has 55070 states and 329505 transitions. [2021-05-21 20:33:10,706 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:33:10,706 INFO L276 IsEmpty]: Start isEmpty. Operand 55070 states and 329505 transitions. [2021-05-21 20:33:10,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:33:10,832 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:33:10,832 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 20:33:10,832 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-05-21 20:33:10,832 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:33:10,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:33:10,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1215017409, now seen corresponding path program 14 times [2021-05-21 20:33:10,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:33:10,832 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733205356] [2021-05-21 20:33:10,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:33:10,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:33:11,416 WARN L205 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 13 [2021-05-21 20:33:11,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:33:11,722 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:33:11,722 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733205356] [2021-05-21 20:33:11,723 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733205356] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:33:11,723 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:33:11,723 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-21 20:33:11,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245346530] [2021-05-21 20:33:11,723 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 20:33:11,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:33:11,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 20:33:11,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-05-21 20:33:11,724 INFO L87 Difference]: Start difference. First operand 55070 states and 329505 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:33:13,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:33:13,367 INFO L93 Difference]: Finished difference Result 141407 states and 795267 transitions. [2021-05-21 20:33:13,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 20:33:13,368 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:33:13,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:33:14,027 INFO L225 Difference]: With dead ends: 141407 [2021-05-21 20:33:14,027 INFO L226 Difference]: Without dead ends: 138007 [2021-05-21 20:33:14,027 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 876.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-05-21 20:33:21,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138007 states. [2021-05-21 20:33:22,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138007 to 54688. [2021-05-21 20:33:22,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54688 states, 54687 states have (on average 5.990271911057473) internal successors, (327590), 54687 states have internal predecessors, (327590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:33:23,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54688 states to 54688 states and 327590 transitions. [2021-05-21 20:33:23,632 INFO L78 Accepts]: Start accepts. Automaton has 54688 states and 327590 transitions. Word has length 37 [2021-05-21 20:33:23,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:33:23,632 INFO L482 AbstractCegarLoop]: Abstraction has 54688 states and 327590 transitions. [2021-05-21 20:33:23,632 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:33:23,632 INFO L276 IsEmpty]: Start isEmpty. Operand 54688 states and 327590 transitions. [2021-05-21 20:33:23,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:33:23,763 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:33:23,763 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 20:33:23,763 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-05-21 20:33:23,763 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:33:23,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:33:23,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1224854941, now seen corresponding path program 15 times [2021-05-21 20:33:23,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:33:23,763 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420341990] [2021-05-21 20:33:23,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:33:23,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:33:24,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:33:24,034 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:33:24,035 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420341990] [2021-05-21 20:33:24,035 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420341990] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:33:24,035 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:33:24,035 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-21 20:33:24,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661885485] [2021-05-21 20:33:24,035 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 20:33:24,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:33:24,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 20:33:24,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-05-21 20:33:24,036 INFO L87 Difference]: Start difference. First operand 54688 states and 327590 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:33:25,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:33:25,604 INFO L93 Difference]: Finished difference Result 141157 states and 794164 transitions. [2021-05-21 20:33:25,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 20:33:25,604 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:33:25,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:33:26,181 INFO L225 Difference]: With dead ends: 141157 [2021-05-21 20:33:26,181 INFO L226 Difference]: Without dead ends: 138363 [2021-05-21 20:33:26,182 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 262.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-05-21 20:33:33,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138363 states. [2021-05-21 20:33:35,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138363 to 55068. [2021-05-21 20:33:35,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55068 states, 55067 states have (on average 5.9801696115640945) internal successors, (329310), 55067 states have internal predecessors, (329310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:33:35,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55068 states to 55068 states and 329310 transitions. [2021-05-21 20:33:35,413 INFO L78 Accepts]: Start accepts. Automaton has 55068 states and 329310 transitions. Word has length 37 [2021-05-21 20:33:35,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:33:35,413 INFO L482 AbstractCegarLoop]: Abstraction has 55068 states and 329310 transitions. [2021-05-21 20:33:35,413 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:33:35,413 INFO L276 IsEmpty]: Start isEmpty. Operand 55068 states and 329310 transitions. [2021-05-21 20:33:35,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:33:35,541 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:33:35,541 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, 1, 1, 1, 1] [2021-05-21 20:33:35,541 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-05-21 20:33:35,541 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:33:35,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:33:35,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1194995263, now seen corresponding path program 16 times [2021-05-21 20:33:35,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:33:35,542 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512947693] [2021-05-21 20:33:35,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:33:35,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:33:35,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:33:35,801 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:33:35,801 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512947693] [2021-05-21 20:33:35,801 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512947693] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:33:35,801 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:33:35,801 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-21 20:33:35,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273786537] [2021-05-21 20:33:35,802 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 20:33:35,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:33:35,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 20:33:35,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-05-21 20:33:35,802 INFO L87 Difference]: Start difference. First operand 55068 states and 329310 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:33:36,739 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-05-21 20:33:37,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:33:37,389 INFO L93 Difference]: Finished difference Result 141357 states and 794904 transitions. [2021-05-21 20:33:37,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 20:33:37,389 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:33:37,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:33:38,826 INFO L225 Difference]: With dead ends: 141357 [2021-05-21 20:33:38,826 INFO L226 Difference]: Without dead ends: 137983 [2021-05-21 20:33:38,826 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 338.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-05-21 20:33:46,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137983 states. [2021-05-21 20:33:47,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137983 to 54688. [2021-05-21 20:33:47,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54688 states, 54687 states have (on average 5.9867975935779985) internal successors, (327400), 54687 states have internal predecessors, (327400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:33:48,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54688 states to 54688 states and 327400 transitions. [2021-05-21 20:33:48,610 INFO L78 Accepts]: Start accepts. Automaton has 54688 states and 327400 transitions. Word has length 37 [2021-05-21 20:33:48,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:33:48,610 INFO L482 AbstractCegarLoop]: Abstraction has 54688 states and 327400 transitions. [2021-05-21 20:33:48,610 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:33:48,610 INFO L276 IsEmpty]: Start isEmpty. Operand 54688 states and 327400 transitions. [2021-05-21 20:33:48,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:33:48,822 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:33:48,822 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 20:33:48,822 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-05-21 20:33:48,822 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:33:48,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:33:48,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1165449665, now seen corresponding path program 17 times [2021-05-21 20:33:48,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:33:48,823 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935375517] [2021-05-21 20:33:48,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:33:48,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:33:49,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:33:49,057 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:33:49,057 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935375517] [2021-05-21 20:33:49,057 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935375517] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:33:49,057 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:33:49,057 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-21 20:33:49,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060626293] [2021-05-21 20:33:49,058 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 20:33:49,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:33:49,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 20:33:49,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-05-21 20:33:49,058 INFO L87 Difference]: Start difference. First operand 54688 states and 327400 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:33:50,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:33:50,633 INFO L93 Difference]: Finished difference Result 141707 states and 796999 transitions. [2021-05-21 20:33:50,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 20:33:50,633 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:33:50,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:33:51,213 INFO L225 Difference]: With dead ends: 141707 [2021-05-21 20:33:51,213 INFO L226 Difference]: Without dead ends: 138689 [2021-05-21 20:33:51,213 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 248.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-05-21 20:33:58,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138689 states. [2021-05-21 20:34:00,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138689 to 55170. [2021-05-21 20:34:00,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55170 states, 55169 states have (on average 5.975004078377349) internal successors, (329635), 55169 states have internal predecessors, (329635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:34:00,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55170 states to 55170 states and 329635 transitions. [2021-05-21 20:34:00,469 INFO L78 Accepts]: Start accepts. Automaton has 55170 states and 329635 transitions. Word has length 37 [2021-05-21 20:34:00,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:34:00,469 INFO L482 AbstractCegarLoop]: Abstraction has 55170 states and 329635 transitions. [2021-05-21 20:34:00,470 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:34:00,470 INFO L276 IsEmpty]: Start isEmpty. Operand 55170 states and 329635 transitions. [2021-05-21 20:34:00,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:34:00,600 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:34:00,600 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 20:34:00,600 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-05-21 20:34:00,600 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:34:00,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:34:00,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1086180637, now seen corresponding path program 18 times [2021-05-21 20:34:00,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:34:00,601 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050268976] [2021-05-21 20:34:00,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:34:00,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:34:00,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:34:00,838 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:34:00,838 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050268976] [2021-05-21 20:34:00,838 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050268976] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:34:00,839 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:34:00,839 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-21 20:34:00,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231734720] [2021-05-21 20:34:00,839 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 20:34:00,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:34:00,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 20:34:00,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-05-21 20:34:00,840 INFO L87 Difference]: Start difference. First operand 55170 states and 329635 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:34:01,739 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-05-21 20:34:02,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:34:02,324 INFO L93 Difference]: Finished difference Result 141683 states and 796433 transitions. [2021-05-21 20:34:02,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 20:34:02,324 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:34:02,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:34:03,581 INFO L225 Difference]: With dead ends: 141683 [2021-05-21 20:34:03,581 INFO L226 Difference]: Without dead ends: 138017 [2021-05-21 20:34:03,581 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 308.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-05-21 20:34:10,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138017 states. [2021-05-21 20:34:12,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138017 to 54498. [2021-05-21 20:34:12,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54498 states, 54497 states have (on average 5.991889461805237) internal successors, (326540), 54497 states have internal predecessors, (326540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:34:13,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54498 states to 54498 states and 326540 transitions. [2021-05-21 20:34:13,117 INFO L78 Accepts]: Start accepts. Automaton has 54498 states and 326540 transitions. Word has length 37 [2021-05-21 20:34:13,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:34:13,117 INFO L482 AbstractCegarLoop]: Abstraction has 54498 states and 326540 transitions. [2021-05-21 20:34:13,117 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:34:13,118 INFO L276 IsEmpty]: Start isEmpty. Operand 54498 states and 326540 transitions. [2021-05-21 20:34:13,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:34:13,359 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:34:13,359 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 20:34:13,360 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-05-21 20:34:13,361 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:34:13,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:34:13,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1499211103, now seen corresponding path program 19 times [2021-05-21 20:34:13,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:34:13,361 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516760475] [2021-05-21 20:34:13,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:34:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:34:13,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:34:13,677 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:34:13,677 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516760475] [2021-05-21 20:34:13,677 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516760475] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:34:13,677 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:34:13,677 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-21 20:34:13,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604035857] [2021-05-21 20:34:13,678 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 20:34:13,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:34:13,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 20:34:13,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-05-21 20:34:13,678 INFO L87 Difference]: Start difference. First operand 54498 states and 326540 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:34:15,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:34:15,354 INFO L93 Difference]: Finished difference Result 142277 states and 800364 transitions. [2021-05-21 20:34:15,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 20:34:15,354 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:34:15,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:34:16,696 INFO L225 Difference]: With dead ends: 142277 [2021-05-21 20:34:16,696 INFO L226 Difference]: Without dead ends: 139245 [2021-05-21 20:34:16,696 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 300.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-05-21 20:34:25,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139245 states. [2021-05-21 20:34:26,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139245 to 55234. [2021-05-21 20:34:27,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55234 states, 55233 states have (on average 5.979975739141455) internal successors, (330292), 55233 states have internal predecessors, (330292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:34:27,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55234 states to 55234 states and 330292 transitions. [2021-05-21 20:34:27,807 INFO L78 Accepts]: Start accepts. Automaton has 55234 states and 330292 transitions. Word has length 37 [2021-05-21 20:34:27,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:34:27,807 INFO L482 AbstractCegarLoop]: Abstraction has 55234 states and 330292 transitions. [2021-05-21 20:34:27,808 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:34:27,808 INFO L276 IsEmpty]: Start isEmpty. Operand 55234 states and 330292 transitions. [2021-05-21 20:34:28,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:34:28,005 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:34:28,005 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 20:34:28,005 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-05-21 20:34:28,005 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:34:28,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:34:28,006 INFO L82 PathProgramCache]: Analyzing trace with hash 752419199, now seen corresponding path program 20 times [2021-05-21 20:34:28,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:34:28,006 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658702236] [2021-05-21 20:34:28,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:34:28,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:34:28,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:34:28,243 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:34:28,243 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658702236] [2021-05-21 20:34:28,243 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658702236] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:34:28,244 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:34:28,244 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-21 20:34:28,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597015930] [2021-05-21 20:34:28,245 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 20:34:28,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:34:28,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 20:34:28,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-05-21 20:34:28,245 INFO L87 Difference]: Start difference. First operand 55234 states and 330292 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:34:29,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:34:29,750 INFO L93 Difference]: Finished difference Result 142263 states and 799827 transitions. [2021-05-21 20:34:29,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 20:34:29,750 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:34:29,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:34:30,337 INFO L225 Difference]: With dead ends: 142263 [2021-05-21 20:34:30,338 INFO L226 Difference]: Without dead ends: 138750 [2021-05-21 20:34:30,338 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 241.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-05-21 20:34:37,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138750 states. [2021-05-21 20:34:39,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138750 to 54739. [2021-05-21 20:34:39,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54739 states, 54738 states have (on average 5.988125251196609) internal successors, (327778), 54738 states have internal predecessors, (327778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:34:39,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54739 states to 54739 states and 327778 transitions. [2021-05-21 20:34:39,632 INFO L78 Accepts]: Start accepts. Automaton has 54739 states and 327778 transitions. Word has length 37 [2021-05-21 20:34:39,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:34:39,633 INFO L482 AbstractCegarLoop]: Abstraction has 54739 states and 327778 transitions. [2021-05-21 20:34:39,633 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:34:39,633 INFO L276 IsEmpty]: Start isEmpty. Operand 54739 states and 327778 transitions. [2021-05-21 20:34:39,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:34:39,758 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:34:39,758 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 20:34:39,758 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-05-21 20:34:39,758 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:34:39,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:34:39,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1948959231, now seen corresponding path program 21 times [2021-05-21 20:34:39,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:34:39,758 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421001702] [2021-05-21 20:34:39,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:34:39,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:34:39,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:34:39,982 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:34:39,982 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421001702] [2021-05-21 20:34:39,982 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421001702] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:34:39,982 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:34:39,982 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-21 20:34:39,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605937190] [2021-05-21 20:34:39,982 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 20:34:39,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:34:39,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 20:34:39,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-05-21 20:34:39,983 INFO L87 Difference]: Start difference. First operand 54739 states and 327778 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:34:41,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:34:41,444 INFO L93 Difference]: Finished difference Result 142241 states and 799991 transitions. [2021-05-21 20:34:41,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 20:34:41,445 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:34:41,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:34:42,642 INFO L225 Difference]: With dead ends: 142241 [2021-05-21 20:34:42,642 INFO L226 Difference]: Without dead ends: 139209 [2021-05-21 20:34:42,642 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 271.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-05-21 20:34:49,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139209 states. [2021-05-21 20:34:51,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139209 to 55222. [2021-05-21 20:34:51,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55222 states, 55221 states have (on average 5.9762590318900415) internal successors, (330015), 55221 states have internal predecessors, (330015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:34:52,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55222 states to 55222 states and 330015 transitions. [2021-05-21 20:34:52,158 INFO L78 Accepts]: Start accepts. Automaton has 55222 states and 330015 transitions. Word has length 37 [2021-05-21 20:34:52,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:34:52,158 INFO L482 AbstractCegarLoop]: Abstraction has 55222 states and 330015 transitions. [2021-05-21 20:34:52,158 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:34:52,158 INFO L276 IsEmpty]: Start isEmpty. Operand 55222 states and 330015 transitions. [2021-05-21 20:34:52,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:34:52,404 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:34:52,405 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 20:34:52,405 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-05-21 20:34:52,405 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:34:52,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:34:52,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1153541633, now seen corresponding path program 22 times [2021-05-21 20:34:52,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:34:52,405 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885418428] [2021-05-21 20:34:52,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:34:52,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:34:52,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:34:52,646 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:34:52,646 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885418428] [2021-05-21 20:34:52,646 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885418428] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:34:52,646 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:34:52,646 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-21 20:34:52,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847975564] [2021-05-21 20:34:52,646 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 20:34:52,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:34:52,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 20:34:52,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-05-21 20:34:52,647 INFO L87 Difference]: Start difference. First operand 55222 states and 330015 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:34:54,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:34:54,230 INFO L93 Difference]: Finished difference Result 142203 states and 799382 transitions. [2021-05-21 20:34:54,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 20:34:54,230 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:34:54,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:34:54,811 INFO L225 Difference]: With dead ends: 142203 [2021-05-21 20:34:54,811 INFO L226 Difference]: Without dead ends: 138726 [2021-05-21 20:34:54,811 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 229.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-05-21 20:35:01,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138726 states. [2021-05-21 20:35:03,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138726 to 54739. [2021-05-21 20:35:03,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54739 states, 54738 states have (on average 5.983722459717198) internal successors, (327537), 54738 states have internal predecessors, (327537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:35:04,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54739 states to 54739 states and 327537 transitions. [2021-05-21 20:35:04,214 INFO L78 Accepts]: Start accepts. Automaton has 54739 states and 327537 transitions. Word has length 37 [2021-05-21 20:35:04,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:35:04,214 INFO L482 AbstractCegarLoop]: Abstraction has 54739 states and 327537 transitions. [2021-05-21 20:35:04,214 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:35:04,214 INFO L276 IsEmpty]: Start isEmpty. Operand 54739 states and 327537 transitions. [2021-05-21 20:35:04,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:35:04,355 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:35:04,355 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 20:35:04,355 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-05-21 20:35:04,355 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:35:04,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:35:04,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1363660451, now seen corresponding path program 23 times [2021-05-21 20:35:04,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:35:04,356 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985174012] [2021-05-21 20:35:04,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:35:04,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:35:04,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:35:04,641 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:35:04,641 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985174012] [2021-05-21 20:35:04,641 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985174012] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:35:04,641 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:35:04,642 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-21 20:35:04,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134154584] [2021-05-21 20:35:04,642 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 20:35:04,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:35:04,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 20:35:04,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-05-21 20:35:04,642 INFO L87 Difference]: Start difference. First operand 54739 states and 327537 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:35:06,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:35:06,334 INFO L93 Difference]: Finished difference Result 142212 states and 799663 transitions. [2021-05-21 20:35:06,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 20:35:06,335 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:35:06,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:35:07,567 INFO L225 Difference]: With dead ends: 142212 [2021-05-21 20:35:07,567 INFO L226 Difference]: Without dead ends: 139194 [2021-05-21 20:35:07,568 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 266.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-05-21 20:35:14,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139194 states. [2021-05-21 20:35:16,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139194 to 55221. [2021-05-21 20:35:16,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55221 states, 55220 states have (on average 5.971966678739587) internal successors, (329772), 55220 states have internal predecessors, (329772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:35:16,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55221 states to 55221 states and 329772 transitions. [2021-05-21 20:35:16,842 INFO L78 Accepts]: Start accepts. Automaton has 55221 states and 329772 transitions. Word has length 37 [2021-05-21 20:35:16,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:35:16,843 INFO L482 AbstractCegarLoop]: Abstraction has 55221 states and 329772 transitions. [2021-05-21 20:35:16,843 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:35:16,843 INFO L276 IsEmpty]: Start isEmpty. Operand 55221 states and 329772 transitions. [2021-05-21 20:35:17,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:35:17,578 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:35:17,578 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 20:35:17,578 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-05-21 20:35:17,579 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:35:17,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:35:17,579 INFO L82 PathProgramCache]: Analyzing trace with hash -282597825, now seen corresponding path program 24 times [2021-05-21 20:35:17,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:35:17,579 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10946287] [2021-05-21 20:35:17,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:35:17,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:35:17,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:35:17,867 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:35:17,867 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10946287] [2021-05-21 20:35:17,867 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10946287] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:35:17,867 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:35:17,867 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-21 20:35:17,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768874925] [2021-05-21 20:35:17,867 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 20:35:17,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:35:17,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 20:35:17,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-05-21 20:35:17,868 INFO L87 Difference]: Start difference. First operand 55221 states and 329772 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:35:19,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:35:19,537 INFO L93 Difference]: Finished difference Result 142188 states and 799097 transitions. [2021-05-21 20:35:19,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 20:35:19,537 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:35:19,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:35:20,143 INFO L225 Difference]: With dead ends: 142188 [2021-05-21 20:35:20,144 INFO L226 Difference]: Without dead ends: 138280 [2021-05-21 20:35:20,144 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 243.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-05-21 20:35:27,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138280 states. [2021-05-21 20:35:29,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138280 to 54307. [2021-05-21 20:35:29,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54307 states, 54306 states have (on average 5.998858321364122) internal successors, (325774), 54306 states have internal predecessors, (325774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:35:30,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54307 states to 54307 states and 325774 transitions. [2021-05-21 20:35:30,015 INFO L78 Accepts]: Start accepts. Automaton has 54307 states and 325774 transitions. Word has length 37 [2021-05-21 20:35:30,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:35:30,015 INFO L482 AbstractCegarLoop]: Abstraction has 54307 states and 325774 transitions. [2021-05-21 20:35:30,015 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:35:30,015 INFO L276 IsEmpty]: Start isEmpty. Operand 54307 states and 325774 transitions. [2021-05-21 20:35:30,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:35:30,142 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:35:30,142 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 20:35:30,142 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-05-21 20:35:30,142 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:35:30,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:35:30,142 INFO L82 PathProgramCache]: Analyzing trace with hash 715667261, now seen corresponding path program 25 times [2021-05-21 20:35:30,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:35:30,142 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956290820] [2021-05-21 20:35:30,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:35:30,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:35:30,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:35:30,408 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:35:30,408 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956290820] [2021-05-21 20:35:30,408 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956290820] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:35:30,408 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:35:30,408 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-21 20:35:30,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230210847] [2021-05-21 20:35:30,408 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 20:35:30,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:35:30,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 20:35:30,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-05-21 20:35:30,409 INFO L87 Difference]: Start difference. First operand 54307 states and 325774 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:35:32,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:35:32,371 INFO L93 Difference]: Finished difference Result 141506 states and 796059 transitions. [2021-05-21 20:35:32,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 20:35:32,371 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:35:32,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:35:33,304 INFO L225 Difference]: With dead ends: 141506 [2021-05-21 20:35:33,305 INFO L226 Difference]: Without dead ends: 138712 [2021-05-21 20:35:33,321 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 262.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-05-21 20:35:41,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138712 states. [2021-05-21 20:35:43,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138712 to 55295. [2021-05-21 20:35:43,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55295 states, 55294 states have (on average 5.981426556226715) internal successors, (330737), 55294 states have internal predecessors, (330737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:35:43,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55295 states to 55295 states and 330737 transitions. [2021-05-21 20:35:43,513 INFO L78 Accepts]: Start accepts. Automaton has 55295 states and 330737 transitions. Word has length 37 [2021-05-21 20:35:43,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:35:43,513 INFO L482 AbstractCegarLoop]: Abstraction has 55295 states and 330737 transitions. [2021-05-21 20:35:43,513 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:35:43,513 INFO L276 IsEmpty]: Start isEmpty. Operand 55295 states and 330737 transitions. [2021-05-21 20:35:43,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:35:43,643 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:35:43,643 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 20:35:43,643 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-05-21 20:35:43,643 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:35:43,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:35:43,643 INFO L82 PathProgramCache]: Analyzing trace with hash -874267489, now seen corresponding path program 26 times [2021-05-21 20:35:43,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:35:43,644 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704580675] [2021-05-21 20:35:43,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:35:43,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:35:43,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:35:43,905 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:35:43,905 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704580675] [2021-05-21 20:35:43,905 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704580675] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:35:43,905 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:35:43,905 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-21 20:35:43,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114202943] [2021-05-21 20:35:43,906 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 20:35:43,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:35:43,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 20:35:43,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-05-21 20:35:43,906 INFO L87 Difference]: Start difference. First operand 55295 states and 330737 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:35:45,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:35:45,446 INFO L93 Difference]: Finished difference Result 141744 states and 796922 transitions. [2021-05-21 20:35:45,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 20:35:45,447 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:35:45,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:35:46,608 INFO L225 Difference]: With dead ends: 141744 [2021-05-21 20:35:46,608 INFO L226 Difference]: Without dead ends: 138201 [2021-05-21 20:35:46,609 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 315.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-05-21 20:35:53,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138201 states. [2021-05-21 20:35:55,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138201 to 54784. [2021-05-21 20:35:55,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54784 states, 54783 states have (on average 5.990526258145775) internal successors, (328179), 54783 states have internal predecessors, (328179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:35:56,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54784 states to 54784 states and 328179 transitions. [2021-05-21 20:35:56,230 INFO L78 Accepts]: Start accepts. Automaton has 54784 states and 328179 transitions. Word has length 37 [2021-05-21 20:35:56,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 20:35:56,231 INFO L482 AbstractCegarLoop]: Abstraction has 54784 states and 328179 transitions. [2021-05-21 20:35:56,231 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:35:56,231 INFO L276 IsEmpty]: Start isEmpty. Operand 54784 states and 328179 transitions. [2021-05-21 20:35:56,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 20:35:56,517 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 20:35:56,517 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 20:35:56,517 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-05-21 20:35:56,517 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-21 20:35:56,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 20:35:56,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1796729887, now seen corresponding path program 27 times [2021-05-21 20:35:56,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 20:35:56,517 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779582388] [2021-05-21 20:35:56,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 20:35:56,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 20:35:56,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 20:35:56,767 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 20:35:56,767 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779582388] [2021-05-21 20:35:56,767 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779582388] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 20:35:56,767 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 20:35:56,768 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-21 20:35:56,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841801935] [2021-05-21 20:35:56,768 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 20:35:56,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 20:35:56,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 20:35:56,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-05-21 20:35:56,768 INFO L87 Difference]: Start difference. First operand 54784 states and 328179 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:35:58,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 20:35:58,457 INFO L93 Difference]: Finished difference Result 141363 states and 795183 transitions. [2021-05-21 20:35:58,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 20:35:58,457 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 20:35:58,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 20:35:59,042 INFO L225 Difference]: With dead ends: 141363 [2021-05-21 20:35:59,042 INFO L226 Difference]: Without dead ends: 138569 [2021-05-21 20:35:59,042 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 251.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-05-21 20:36:06,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138569 states. Received shutdown request... [2021-05-21 20:36:08,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138569 to 55166. [2021-05-21 20:36:08,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55166 states, 55165 states have (on average 5.980313604640624) internal successors, (329904), 55165 states have internal predecessors, (329904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 20:36:08,177 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-05-21 20:36:08,177 WARN L547 AbstractCegarLoop]: Verification canceled [2021-05-21 20:36:08,179 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-05-21 20:36:08,180 WARN L196 ceAbstractionStarter]: Timeout [2021-05-21 20:36:08,180 INFO L202 PluginConnector]: Adding new model example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.05 08:36:08 BasicIcfg [2021-05-21 20:36:08,181 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-21 20:36:08,181 INFO L168 Benchmark]: Toolchain (without parser) took 686649.65 ms. Allocated memory was 348.1 MB in the beginning and 16.0 GB in the end (delta: 15.7 GB). Free memory was 327.3 MB in the beginning and 11.4 GB in the end (delta: -11.1 GB). Peak memory consumption was 5.1 GB. Max. memory is 16.0 GB. [2021-05-21 20:36:08,181 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 348.1 MB. Free memory was 328.3 MB in the beginning and 328.3 MB in the end (delta: 65.5 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 20:36:08,181 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.60 ms. Allocated memory is still 348.1 MB. Free memory was 327.2 MB in the beginning and 325.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 20:36:08,181 INFO L168 Benchmark]: Boogie Preprocessor took 12.45 ms. Allocated memory is still 348.1 MB. Free memory was 325.7 MB in the beginning and 324.8 MB in the end (delta: 919.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 20:36:08,181 INFO L168 Benchmark]: RCFGBuilder took 223.88 ms. Allocated memory is still 348.1 MB. Free memory was 324.7 MB in the beginning and 312.5 MB in the end (delta: 12.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-05-21 20:36:08,181 INFO L168 Benchmark]: TraceAbstraction took 686384.47 ms. Allocated memory was 348.1 MB in the beginning and 16.0 GB in the end (delta: 15.7 GB). Free memory was 312.1 MB in the beginning and 11.4 GB in the end (delta: -11.1 GB). Peak memory consumption was 5.1 GB. Max. memory is 16.0 GB. [2021-05-21 20:36:08,182 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 0.14 ms. Allocated memory is still 348.1 MB. Free memory was 328.3 MB in the beginning and 328.3 MB in the end (delta: 65.5 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 24.60 ms. Allocated memory is still 348.1 MB. Free memory was 327.2 MB in the beginning and 325.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.45 ms. Allocated memory is still 348.1 MB. Free memory was 325.7 MB in the beginning and 324.8 MB in the end (delta: 919.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 223.88 ms. Allocated memory is still 348.1 MB. Free memory was 324.7 MB in the beginning and 312.5 MB in the end (delta: 12.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 686384.47 ms. Allocated memory was 348.1 MB in the beginning and 16.0 GB in the end (delta: 15.7 GB). Free memory was 312.1 MB in the beginning and 11.4 GB in the end (delta: -11.1 GB). Peak memory consumption was 5.1 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 31]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 19 procedures, 85 locations, 10 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 686143.4ms, OverallIterations: 34, TraceHistogramMax: 1, EmptinessCheckTime: 14587.3ms, AutomataDifference: 96157.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 182985.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 10819 SDtfs, 24682 SDslu, 30549 SDs, 0 SdLazy, 2613 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2121.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 318 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 277 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 8763.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=271988occurred in iteration=0, InterpolantAutomatonStates: 318, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 383452.5ms AutomataMinimizationTime, 34 MinimizatonAttempts, 2173738 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 52.9ms SsaConstructionTime, 160.3ms SatisfiabilityAnalysisTime, 8425.4ms InterpolantComputationTime, 1258 NumberOfCodeBlocks, 1258 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 1224 ConstructedInterpolants, 0 QuantifiedInterpolants, 38019 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 34 InterpolantComputations, 34 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