/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-6.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 15:09:53,852 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 15:09:53,854 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 15:09:53,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 15:09:53,949 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 15:09:53,950 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 15:09:53,950 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 15:09:53,951 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2021-06-05 15:09:53,985 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 15:09:53,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 15:09:53,986 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 15:09:53,986 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 15:09:53,988 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 15:09:53,988 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 15:09:53,988 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 15:09:53,989 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 15:09:53,989 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 15:09:53,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 15:09:53,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 15:09:53,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 15:09:53,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 15:09:53,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 15:09:53,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 15:09:53,990 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 15:09:53,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 15:09:53,990 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 15:09:53,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 15:09:53,991 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 15:09:53,991 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 15:09:53,991 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 15:09:53,991 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 15:09:53,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 15:09:53,991 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 15:09:53,991 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 15:09:53,991 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 15:09:53,992 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 15:09:53,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 15:09:53,992 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 15:09:53,992 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 15:09:53,992 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 15:09:53,992 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 15:09:54,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 15:09:54,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 15:09:54,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 15:09:54,309 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-05 15:09:54,316 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-05 15:09:54,317 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-6.wvr.bpl [2021-06-05 15:09:54,317 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-6.wvr.bpl' [2021-06-05 15:09:54,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 15:09:54,347 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-05 15:09:54,348 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 15:09:54,348 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 15:09:54,348 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 15:09:54,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:09:54" (1/1) ... [2021-06-05 15:09:54,367 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:09:54" (1/1) ... [2021-06-05 15:09:54,372 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 15:09:54,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 15:09:54,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 15:09:54,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 15:09:54,379 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:09:54" (1/1) ... [2021-06-05 15:09:54,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:09:54" (1/1) ... [2021-06-05 15:09:54,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:09:54" (1/1) ... [2021-06-05 15:09:54,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:09:54" (1/1) ... [2021-06-05 15:09:54,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:09:54" (1/1) ... [2021-06-05 15:09:54,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:09:54" (1/1) ... [2021-06-05 15:09:54,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:09:54" (1/1) ... [2021-06-05 15:09:54,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 15:09:54,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 15:09:54,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 15:09:54,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 15:09:54,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:09:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 15:09:54,451 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-05 15:09:54,451 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-05 15:09:54,451 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-05 15:09:54,451 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-05 15:09:54,451 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-05 15:09:54,452 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-05 15:09:54,452 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-05 15:09:54,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 15:09:54,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 15:09:54,452 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-05 15:09:54,452 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-05 15:09:54,453 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-05 15:09:54,453 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-06-05 15:09:54,453 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-06-05 15:09:54,453 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-06-05 15:09:54,453 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2021-06-05 15:09:54,453 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-06-05 15:09:54,453 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-06-05 15:09:54,454 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2021-06-05 15:09:54,454 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2021-06-05 15:09:54,454 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2021-06-05 15:09:54,455 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 15:09:54,680 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 15:09:54,681 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-05 15:09:54,682 INFO L202 PluginConnector]: Adding new model ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 03:09:54 BoogieIcfgContainer [2021-06-05 15:09:54,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 15:09:54,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 15:09:54,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 15:09:54,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 15:09:54,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:09:54" (1/2) ... [2021-06-05 15:09:54,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65ce251d and model type ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 03:09:54, skipping insertion in model container [2021-06-05 15:09:54,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 03:09:54" (2/2) ... [2021-06-05 15:09:54,688 INFO L111 eAbstractionObserver]: Analyzing ICFG ticket-6.wvr.bpl [2021-06-05 15:09:54,692 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 15:09:54,692 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 15:09:54,692 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 15:09:54,702 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 15:09:54,781 INFO L149 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2021-06-05 15:09:54,798 INFO L255 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-06-05 15:09:54,812 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 15:09:54,812 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 15:09:54,813 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 15:09:54,813 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 15:09:54,813 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 15:09:54,813 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 15:09:54,813 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 15:09:54,813 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 15:09:54,822 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 73 places, 54 transitions, 156 flow [2021-06-05 15:10:10,089 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 74654 states, 74652 states have (on average 5.020736216042437) internal successors, (374808), 74653 states have internal predecessors, (374808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:10:10,240 INFO L276 IsEmpty]: Start isEmpty. Operand has 74654 states, 74652 states have (on average 5.020736216042437) internal successors, (374808), 74653 states have internal predecessors, (374808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:10:10,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:10:10,663 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:10:10,664 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:10:10,664 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:10:10,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:10:10,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1505096666, now seen corresponding path program 1 times [2021-06-05 15:10:10,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:10:10,676 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140552769] [2021-06-05 15:10:10,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:10:10,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:10:10,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:10:10,950 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:10:10,951 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140552769] [2021-06-05 15:10:10,952 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140552769] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:10:10,952 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:10:10,952 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 15:10:10,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793733743] [2021-06-05 15:10:10,956 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 15:10:10,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:10:10,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 15:10:10,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-06-05 15:10:11,118 INFO L87 Difference]: Start difference. First operand has 74654 states, 74652 states have (on average 5.020736216042437) internal successors, (374808), 74653 states have internal predecessors, (374808), 0 states have call successors, (0), 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 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:10:13,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:10:13,914 INFO L93 Difference]: Finished difference Result 201088 states and 980337 transitions. [2021-06-05 15:10:13,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 15:10:13,916 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:10:13,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:10:15,678 INFO L225 Difference]: With dead ends: 201088 [2021-06-05 15:10:15,679 INFO L226 Difference]: Without dead ends: 201088 [2021-06-05 15:10:15,680 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 45.7ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-06-05 15:10:17,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201088 states. [2021-06-05 15:10:21,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201088 to 100373. [2021-06-05 15:10:22,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100373 states, 100372 states have (on average 4.930000398517515) internal successors, (494834), 100372 states have internal predecessors, (494834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:10:23,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100373 states to 100373 states and 494834 transitions. [2021-06-05 15:10:23,195 INFO L78 Accepts]: Start accepts. Automaton has 100373 states and 494834 transitions. Word has length 46 [2021-06-05 15:10:23,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:10:23,196 INFO L482 AbstractCegarLoop]: Abstraction has 100373 states and 494834 transitions. [2021-06-05 15:10:23,196 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:10:23,197 INFO L276 IsEmpty]: Start isEmpty. Operand 100373 states and 494834 transitions. [2021-06-05 15:10:23,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:10:23,603 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:10:23,603 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:10:23,604 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 15:10:23,604 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:10:23,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:10:23,605 INFO L82 PathProgramCache]: Analyzing trace with hash 2046490878, now seen corresponding path program 2 times [2021-06-05 15:10:23,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:10:23,605 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707713479] [2021-06-05 15:10:23,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:10:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:10:23,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:10:23,669 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:10:23,669 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707713479] [2021-06-05 15:10:23,669 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707713479] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:10:23,669 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:10:23,670 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 15:10:23,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306929677] [2021-06-05 15:10:23,671 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 15:10:23,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:10:23,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 15:10:23,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-05 15:10:23,672 INFO L87 Difference]: Start difference. First operand 100373 states and 494834 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:10:25,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:10:25,965 INFO L93 Difference]: Finished difference Result 237543 states and 1143295 transitions. [2021-06-05 15:10:25,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 15:10:25,968 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:10:25,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:10:27,611 INFO L225 Difference]: With dead ends: 237543 [2021-06-05 15:10:27,611 INFO L226 Difference]: Without dead ends: 237543 [2021-06-05 15:10:27,612 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 24.9ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-06-05 15:10:29,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237543 states. [2021-06-05 15:10:33,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237543 to 124242. [2021-06-05 15:10:33,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124242 states, 124241 states have (on average 4.865503336257757) internal successors, (604495), 124241 states have internal predecessors, (604495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:10:35,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124242 states to 124242 states and 604495 transitions. [2021-06-05 15:10:35,146 INFO L78 Accepts]: Start accepts. Automaton has 124242 states and 604495 transitions. Word has length 46 [2021-06-05 15:10:35,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:10:35,147 INFO L482 AbstractCegarLoop]: Abstraction has 124242 states and 604495 transitions. [2021-06-05 15:10:35,148 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:10:35,148 INFO L276 IsEmpty]: Start isEmpty. Operand 124242 states and 604495 transitions. [2021-06-05 15:10:35,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:10:35,503 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:10:35,504 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:10:35,504 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 15:10:35,504 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:10:35,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:10:35,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1539776996, now seen corresponding path program 3 times [2021-06-05 15:10:35,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:10:35,505 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126650493] [2021-06-05 15:10:35,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:10:35,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:10:35,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:10:35,588 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:10:35,588 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126650493] [2021-06-05 15:10:35,588 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126650493] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:10:35,588 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:10:35,588 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 15:10:35,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612858560] [2021-06-05 15:10:35,589 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 15:10:35,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:10:35,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 15:10:35,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-06-05 15:10:35,590 INFO L87 Difference]: Start difference. First operand 124242 states and 604495 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:10:38,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:10:38,325 INFO L93 Difference]: Finished difference Result 232977 states and 1116666 transitions. [2021-06-05 15:10:38,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 15:10:38,326 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:10:38,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:10:39,586 INFO L225 Difference]: With dead ends: 232977 [2021-06-05 15:10:39,587 INFO L226 Difference]: Without dead ends: 232977 [2021-06-05 15:10:39,587 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 35.5ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-06-05 15:10:41,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232977 states. [2021-06-05 15:10:45,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232977 to 140760. [2021-06-05 15:10:45,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140760 states, 140759 states have (on average 4.84867752683665) internal successors, (682495), 140759 states have internal predecessors, (682495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:10:47,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140760 states to 140760 states and 682495 transitions. [2021-06-05 15:10:47,021 INFO L78 Accepts]: Start accepts. Automaton has 140760 states and 682495 transitions. Word has length 46 [2021-06-05 15:10:47,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:10:47,022 INFO L482 AbstractCegarLoop]: Abstraction has 140760 states and 682495 transitions. [2021-06-05 15:10:47,022 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:10:47,022 INFO L276 IsEmpty]: Start isEmpty. Operand 140760 states and 682495 transitions. [2021-06-05 15:10:47,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:10:47,498 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:10:47,498 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:10:47,499 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 15:10:47,499 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:10:47,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:10:47,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1869124714, now seen corresponding path program 4 times [2021-06-05 15:10:47,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:10:47,500 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458764095] [2021-06-05 15:10:47,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:10:47,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:10:47,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:10:47,567 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:10:47,567 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458764095] [2021-06-05 15:10:47,568 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458764095] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:10:47,568 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:10:47,568 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 15:10:47,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375887436] [2021-06-05 15:10:47,568 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 15:10:47,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:10:47,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 15:10:47,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-06-05 15:10:47,569 INFO L87 Difference]: Start difference. First operand 140760 states and 682495 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:10:49,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:10:49,708 INFO L93 Difference]: Finished difference Result 207060 states and 995129 transitions. [2021-06-05 15:10:49,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 15:10:49,709 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:10:49,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:10:51,270 INFO L225 Difference]: With dead ends: 207060 [2021-06-05 15:10:51,270 INFO L226 Difference]: Without dead ends: 207060 [2021-06-05 15:10:51,271 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 35.7ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-06-05 15:10:52,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207060 states. [2021-06-05 15:10:56,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207060 to 146091. [2021-06-05 15:10:56,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146091 states, 146090 states have (on average 4.832856458347594) internal successors, (706032), 146090 states have internal predecessors, (706032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:10:58,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146091 states to 146091 states and 706032 transitions. [2021-06-05 15:10:58,253 INFO L78 Accepts]: Start accepts. Automaton has 146091 states and 706032 transitions. Word has length 46 [2021-06-05 15:10:58,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:10:58,253 INFO L482 AbstractCegarLoop]: Abstraction has 146091 states and 706032 transitions. [2021-06-05 15:10:58,253 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:10:58,253 INFO L276 IsEmpty]: Start isEmpty. Operand 146091 states and 706032 transitions. [2021-06-05 15:10:58,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:10:58,634 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:10:58,634 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:10:58,634 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 15:10:58,634 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:10:58,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:10:58,635 INFO L82 PathProgramCache]: Analyzing trace with hash -813595456, now seen corresponding path program 5 times [2021-06-05 15:10:58,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:10:58,635 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561412209] [2021-06-05 15:10:58,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:10:58,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:10:58,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:10:58,705 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:10:58,705 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561412209] [2021-06-05 15:10:58,705 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561412209] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:10:58,705 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:10:58,705 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 15:10:58,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585268814] [2021-06-05 15:10:58,706 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 15:10:58,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:10:58,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 15:10:58,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-06-05 15:10:58,707 INFO L87 Difference]: Start difference. First operand 146091 states and 706032 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:11:01,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:11:01,774 INFO L93 Difference]: Finished difference Result 271147 states and 1272171 transitions. [2021-06-05 15:11:01,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 15:11:01,775 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:11:01,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:11:02,836 INFO L225 Difference]: With dead ends: 271147 [2021-06-05 15:11:02,836 INFO L226 Difference]: Without dead ends: 271147 [2021-06-05 15:11:02,836 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 50.8ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 15:11:04,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271147 states. [2021-06-05 15:11:09,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271147 to 164447. [2021-06-05 15:11:09,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164447 states, 164446 states have (on average 4.712294613429332) internal successors, (774918), 164446 states have internal predecessors, (774918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:11:11,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164447 states to 164447 states and 774918 transitions. [2021-06-05 15:11:11,625 INFO L78 Accepts]: Start accepts. Automaton has 164447 states and 774918 transitions. Word has length 46 [2021-06-05 15:11:11,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:11:11,626 INFO L482 AbstractCegarLoop]: Abstraction has 164447 states and 774918 transitions. [2021-06-05 15:11:11,626 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:11:11,626 INFO L276 IsEmpty]: Start isEmpty. Operand 164447 states and 774918 transitions. [2021-06-05 15:11:12,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:11:12,239 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:11:12,240 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:11:12,240 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 15:11:12,240 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:11:12,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:11:12,240 INFO L82 PathProgramCache]: Analyzing trace with hash 39659516, now seen corresponding path program 6 times [2021-06-05 15:11:12,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:11:12,241 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17776979] [2021-06-05 15:11:12,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:11:12,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:11:12,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:11:12,376 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:11:12,377 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17776979] [2021-06-05 15:11:12,377 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17776979] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:11:12,377 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:11:12,377 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 15:11:12,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467113537] [2021-06-05 15:11:12,378 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 15:11:12,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:11:12,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 15:11:12,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-06-05 15:11:12,379 INFO L87 Difference]: Start difference. First operand 164447 states and 774918 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:11:16,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:11:16,013 INFO L93 Difference]: Finished difference Result 281393 states and 1303094 transitions. [2021-06-05 15:11:16,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 15:11:16,014 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:11:16,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:11:18,033 INFO L225 Difference]: With dead ends: 281393 [2021-06-05 15:11:18,033 INFO L226 Difference]: Without dead ends: 281393 [2021-06-05 15:11:18,036 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 56.8ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-06-05 15:11:20,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281393 states. [2021-06-05 15:11:27,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281393 to 185569. [2021-06-05 15:11:28,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185569 states, 185568 states have (on average 4.64495494912916) internal successors, (861955), 185568 states have internal predecessors, (861955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:11:30,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185569 states to 185569 states and 861955 transitions. [2021-06-05 15:11:30,118 INFO L78 Accepts]: Start accepts. Automaton has 185569 states and 861955 transitions. Word has length 46 [2021-06-05 15:11:30,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:11:30,118 INFO L482 AbstractCegarLoop]: Abstraction has 185569 states and 861955 transitions. [2021-06-05 15:11:30,118 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:11:30,118 INFO L276 IsEmpty]: Start isEmpty. Operand 185569 states and 861955 transitions. [2021-06-05 15:11:30,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:11:30,644 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:11:30,644 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:11:30,644 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 15:11:30,644 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:11:30,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:11:30,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1449595654, now seen corresponding path program 7 times [2021-06-05 15:11:30,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:11:30,645 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103435286] [2021-06-05 15:11:30,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:11:30,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:11:30,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:11:30,738 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:11:30,738 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103435286] [2021-06-05 15:11:30,738 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103435286] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:11:30,738 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:11:30,738 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 15:11:30,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084090193] [2021-06-05 15:11:30,738 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 15:11:30,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:11:30,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 15:11:30,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-06-05 15:11:30,739 INFO L87 Difference]: Start difference. First operand 185569 states and 861955 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:11:33,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:11:33,551 INFO L93 Difference]: Finished difference Result 292927 states and 1358658 transitions. [2021-06-05 15:11:33,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-05 15:11:33,552 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:11:33,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:11:34,478 INFO L225 Difference]: With dead ends: 292927 [2021-06-05 15:11:34,479 INFO L226 Difference]: Without dead ends: 196405 [2021-06-05 15:11:34,479 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.0ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-06-05 15:11:36,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196405 states. [2021-06-05 15:11:39,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196405 to 196405. [2021-06-05 15:11:40,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196405 states, 196404 states have (on average 4.545100914441661) internal successors, (892676), 196404 states have internal predecessors, (892676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:11:41,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196405 states to 196405 states and 892676 transitions. [2021-06-05 15:11:41,848 INFO L78 Accepts]: Start accepts. Automaton has 196405 states and 892676 transitions. Word has length 46 [2021-06-05 15:11:41,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:11:41,848 INFO L482 AbstractCegarLoop]: Abstraction has 196405 states and 892676 transitions. [2021-06-05 15:11:41,848 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:11:41,849 INFO L276 IsEmpty]: Start isEmpty. Operand 196405 states and 892676 transitions. [2021-06-05 15:11:43,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:11:43,197 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:11:43,197 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:11:43,197 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 15:11:43,197 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:11:43,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:11:43,198 INFO L82 PathProgramCache]: Analyzing trace with hash 272315946, now seen corresponding path program 8 times [2021-06-05 15:11:43,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:11:43,198 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766783238] [2021-06-05 15:11:43,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:11:43,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:11:43,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:11:43,304 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:11:43,304 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766783238] [2021-06-05 15:11:43,304 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766783238] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:11:43,304 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:11:43,304 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 15:11:43,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11016101] [2021-06-05 15:11:43,305 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 15:11:43,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:11:43,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 15:11:43,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-06-05 15:11:43,305 INFO L87 Difference]: Start difference. First operand 196405 states and 892676 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:11:45,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:11:45,622 INFO L93 Difference]: Finished difference Result 311447 states and 1399231 transitions. [2021-06-05 15:11:45,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 15:11:45,623 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:11:45,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:11:47,636 INFO L225 Difference]: With dead ends: 311447 [2021-06-05 15:11:47,636 INFO L226 Difference]: Without dead ends: 311255 [2021-06-05 15:11:47,636 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 33.2ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-06-05 15:11:49,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311255 states. [2021-06-05 15:11:55,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311255 to 207417. [2021-06-05 15:11:56,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207417 states, 207416 states have (on average 4.523006903999692) internal successors, (938144), 207416 states have internal predecessors, (938144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:11:57,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207417 states to 207417 states and 938144 transitions. [2021-06-05 15:11:57,774 INFO L78 Accepts]: Start accepts. Automaton has 207417 states and 938144 transitions. Word has length 46 [2021-06-05 15:11:57,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:11:57,775 INFO L482 AbstractCegarLoop]: Abstraction has 207417 states and 938144 transitions. [2021-06-05 15:11:57,775 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:11:57,775 INFO L276 IsEmpty]: Start isEmpty. Operand 207417 states and 938144 transitions. [2021-06-05 15:11:58,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:11:58,415 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:11:58,415 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:11:58,415 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 15:11:58,415 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:11:58,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:11:58,415 INFO L82 PathProgramCache]: Analyzing trace with hash 862533974, now seen corresponding path program 9 times [2021-06-05 15:11:58,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:11:58,415 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965009823] [2021-06-05 15:11:58,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:11:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:11:58,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:11:58,463 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:11:58,463 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965009823] [2021-06-05 15:11:58,463 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965009823] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:11:58,463 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:11:58,463 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 15:11:58,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424397575] [2021-06-05 15:11:58,464 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 15:11:58,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:11:58,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 15:11:58,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-05 15:11:58,465 INFO L87 Difference]: Start difference. First operand 207417 states and 938144 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:12:01,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:12:01,769 INFO L93 Difference]: Finished difference Result 334168 states and 1492333 transitions. [2021-06-05 15:12:01,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 15:12:01,770 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:12:01,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:12:04,020 INFO L225 Difference]: With dead ends: 334168 [2021-06-05 15:12:04,020 INFO L226 Difference]: Without dead ends: 333766 [2021-06-05 15:12:04,023 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 23.0ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-06-05 15:12:06,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333766 states. [2021-06-05 15:12:12,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333766 to 214179. [2021-06-05 15:12:13,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214179 states, 214178 states have (on average 4.497025838321396) internal successors, (963164), 214178 states have internal predecessors, (963164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:12:14,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214179 states to 214179 states and 963164 transitions. [2021-06-05 15:12:14,941 INFO L78 Accepts]: Start accepts. Automaton has 214179 states and 963164 transitions. Word has length 46 [2021-06-05 15:12:14,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:12:14,942 INFO L482 AbstractCegarLoop]: Abstraction has 214179 states and 963164 transitions. [2021-06-05 15:12:14,942 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:12:14,942 INFO L276 IsEmpty]: Start isEmpty. Operand 214179 states and 963164 transitions. [2021-06-05 15:12:15,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:12:15,522 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:12:15,523 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:12:15,523 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 15:12:15,523 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:12:15,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:12:15,523 INFO L82 PathProgramCache]: Analyzing trace with hash -939509874, now seen corresponding path program 10 times [2021-06-05 15:12:15,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:12:15,524 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16858293] [2021-06-05 15:12:15,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:12:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:12:15,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:12:15,588 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:12:15,588 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16858293] [2021-06-05 15:12:15,589 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16858293] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:12:15,589 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:12:15,589 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 15:12:15,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887614971] [2021-06-05 15:12:15,589 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 15:12:15,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:12:15,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 15:12:15,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-06-05 15:12:15,590 INFO L87 Difference]: Start difference. First operand 214179 states and 963164 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:12:18,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:12:18,864 INFO L93 Difference]: Finished difference Result 354188 states and 1551857 transitions. [2021-06-05 15:12:18,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 15:12:18,865 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:12:18,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:12:20,940 INFO L225 Difference]: With dead ends: 354188 [2021-06-05 15:12:20,940 INFO L226 Difference]: Without dead ends: 353624 [2021-06-05 15:12:20,940 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 46.6ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-06-05 15:12:22,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353624 states. [2021-06-05 15:12:29,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353624 to 224674. [2021-06-05 15:12:29,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224674 states, 224673 states have (on average 4.434026340503754) internal successors, (996206), 224673 states have internal predecessors, (996206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:12:31,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224674 states to 224674 states and 996206 transitions. [2021-06-05 15:12:31,423 INFO L78 Accepts]: Start accepts. Automaton has 224674 states and 996206 transitions. Word has length 46 [2021-06-05 15:12:31,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:12:31,423 INFO L482 AbstractCegarLoop]: Abstraction has 224674 states and 996206 transitions. [2021-06-05 15:12:31,423 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:12:31,423 INFO L276 IsEmpty]: Start isEmpty. Operand 224674 states and 996206 transitions. [2021-06-05 15:12:32,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:12:32,052 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:12:32,052 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:12:32,052 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 15:12:32,052 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:12:32,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:12:32,053 INFO L82 PathProgramCache]: Analyzing trace with hash 642236716, now seen corresponding path program 11 times [2021-06-05 15:12:32,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:12:32,053 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650400251] [2021-06-05 15:12:32,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:12:32,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:12:32,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:12:32,124 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:12:32,124 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650400251] [2021-06-05 15:12:32,125 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650400251] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:12:32,125 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:12:32,125 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 15:12:32,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144520730] [2021-06-05 15:12:32,125 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 15:12:32,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:12:32,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 15:12:32,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-06-05 15:12:32,127 INFO L87 Difference]: Start difference. First operand 224674 states and 996206 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:12:35,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:12:35,111 INFO L93 Difference]: Finished difference Result 313135 states and 1375062 transitions. [2021-06-05 15:12:35,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 15:12:35,111 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:12:35,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:12:36,255 INFO L225 Difference]: With dead ends: 313135 [2021-06-05 15:12:36,255 INFO L226 Difference]: Without dead ends: 313027 [2021-06-05 15:12:36,255 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 40.7ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-06-05 15:12:37,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313027 states. [2021-06-05 15:12:43,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313027 to 222693. [2021-06-05 15:12:44,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222693 states, 222692 states have (on average 4.4333384225746775) internal successors, (987269), 222692 states have internal predecessors, (987269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:12:46,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222693 states to 222693 states and 987269 transitions. [2021-06-05 15:12:46,443 INFO L78 Accepts]: Start accepts. Automaton has 222693 states and 987269 transitions. Word has length 46 [2021-06-05 15:12:46,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:12:46,444 INFO L482 AbstractCegarLoop]: Abstraction has 222693 states and 987269 transitions. [2021-06-05 15:12:46,444 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:12:46,444 INFO L276 IsEmpty]: Start isEmpty. Operand 222693 states and 987269 transitions. [2021-06-05 15:12:47,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:12:47,493 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:12:47,493 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:12:47,493 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 15:12:47,493 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:12:47,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:12:47,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1853602572, now seen corresponding path program 12 times [2021-06-05 15:12:47,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:12:47,496 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886186550] [2021-06-05 15:12:47,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:12:47,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:12:47,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:12:47,574 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:12:47,574 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886186550] [2021-06-05 15:12:47,574 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886186550] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:12:47,574 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:12:47,574 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 15:12:47,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134410935] [2021-06-05 15:12:47,574 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 15:12:47,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:12:47,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 15:12:47,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-06-05 15:12:47,575 INFO L87 Difference]: Start difference. First operand 222693 states and 987269 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:12:51,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:12:51,563 INFO L93 Difference]: Finished difference Result 393699 states and 1713546 transitions. [2021-06-05 15:12:51,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 15:12:51,564 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:12:51,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:12:54,746 INFO L225 Difference]: With dead ends: 393699 [2021-06-05 15:12:54,746 INFO L226 Difference]: Without dead ends: 393021 [2021-06-05 15:12:54,747 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 31.2ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-06-05 15:12:57,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393021 states. [2021-06-05 15:13:04,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393021 to 222310. [2021-06-05 15:13:05,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222310 states, 222309 states have (on average 4.428525160924659) internal successors, (984501), 222309 states have internal predecessors, (984501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:13:06,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222310 states to 222310 states and 984501 transitions. [2021-06-05 15:13:06,728 INFO L78 Accepts]: Start accepts. Automaton has 222310 states and 984501 transitions. Word has length 46 [2021-06-05 15:13:06,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:13:06,729 INFO L482 AbstractCegarLoop]: Abstraction has 222310 states and 984501 transitions. [2021-06-05 15:13:06,729 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:13:06,729 INFO L276 IsEmpty]: Start isEmpty. Operand 222310 states and 984501 transitions. [2021-06-05 15:13:07,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:13:07,418 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:13:07,418 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:13:07,418 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 15:13:07,418 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:13:07,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:13:07,418 INFO L82 PathProgramCache]: Analyzing trace with hash 48602460, now seen corresponding path program 13 times [2021-06-05 15:13:07,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:13:07,419 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051136308] [2021-06-05 15:13:07,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:13:07,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:13:07,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:13:07,449 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:13:07,449 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051136308] [2021-06-05 15:13:07,449 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051136308] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:13:07,449 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:13:07,449 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 15:13:07,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931373929] [2021-06-05 15:13:07,450 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 15:13:07,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:13:07,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 15:13:07,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-06-05 15:13:07,450 INFO L87 Difference]: Start difference. First operand 222310 states and 984501 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:13:10,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:13:10,682 INFO L93 Difference]: Finished difference Result 389126 states and 1691004 transitions. [2021-06-05 15:13:10,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 15:13:10,682 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:13:10,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:13:12,760 INFO L225 Difference]: With dead ends: 389126 [2021-06-05 15:13:12,761 INFO L226 Difference]: Without dead ends: 388292 [2021-06-05 15:13:12,761 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 17.8ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-06-05 15:13:13,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388292 states. [2021-06-05 15:13:20,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388292 to 218179. [2021-06-05 15:13:20,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218179 states, 218178 states have (on average 4.420143185839086) internal successors, (964378), 218178 states have internal predecessors, (964378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:13:23,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218179 states to 218179 states and 964378 transitions. [2021-06-05 15:13:23,087 INFO L78 Accepts]: Start accepts. Automaton has 218179 states and 964378 transitions. Word has length 46 [2021-06-05 15:13:23,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:13:23,088 INFO L482 AbstractCegarLoop]: Abstraction has 218179 states and 964378 transitions. [2021-06-05 15:13:23,088 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:13:23,088 INFO L276 IsEmpty]: Start isEmpty. Operand 218179 states and 964378 transitions. [2021-06-05 15:13:23,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:13:23,863 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:13:23,863 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:13:23,863 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-05 15:13:23,864 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:13:23,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:13:23,864 INFO L82 PathProgramCache]: Analyzing trace with hash 136450120, now seen corresponding path program 14 times [2021-06-05 15:13:23,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:13:23,864 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194120935] [2021-06-05 15:13:23,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:13:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:13:23,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:13:23,981 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:13:23,981 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194120935] [2021-06-05 15:13:23,981 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194120935] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:13:23,981 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:13:23,981 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 15:13:23,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428000669] [2021-06-05 15:13:23,981 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 15:13:23,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:13:23,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 15:13:23,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-06-05 15:13:23,983 INFO L87 Difference]: Start difference. First operand 218179 states and 964378 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:13:27,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:13:27,477 INFO L93 Difference]: Finished difference Result 346552 states and 1495008 transitions. [2021-06-05 15:13:27,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 15:13:27,478 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:13:27,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:13:30,651 INFO L225 Difference]: With dead ends: 346552 [2021-06-05 15:13:30,652 INFO L226 Difference]: Without dead ends: 345856 [2021-06-05 15:13:30,652 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 26.0ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-06-05 15:13:32,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345856 states. [2021-06-05 15:13:39,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345856 to 215344. [2021-06-05 15:13:39,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215344 states, 215343 states have (on average 4.33035204301974) internal successors, (932511), 215343 states have internal predecessors, (932511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:13:41,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215344 states to 215344 states and 932511 transitions. [2021-06-05 15:13:41,247 INFO L78 Accepts]: Start accepts. Automaton has 215344 states and 932511 transitions. Word has length 46 [2021-06-05 15:13:41,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:13:41,247 INFO L482 AbstractCegarLoop]: Abstraction has 215344 states and 932511 transitions. [2021-06-05 15:13:41,247 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:13:41,247 INFO L276 IsEmpty]: Start isEmpty. Operand 215344 states and 932511 transitions. [2021-06-05 15:13:41,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:13:41,791 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:13:41,791 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:13:41,791 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-05 15:13:41,792 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:13:41,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:13:41,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1139991830, now seen corresponding path program 15 times [2021-06-05 15:13:41,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:13:41,792 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149220363] [2021-06-05 15:13:41,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:13:41,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:13:41,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:13:41,836 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:13:41,837 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149220363] [2021-06-05 15:13:41,837 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149220363] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:13:41,837 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:13:41,837 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 15:13:41,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135141840] [2021-06-05 15:13:41,838 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 15:13:41,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:13:41,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 15:13:41,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-05 15:13:41,839 INFO L87 Difference]: Start difference. First operand 215344 states and 932511 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:13:44,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:13:44,874 INFO L93 Difference]: Finished difference Result 325590 states and 1394296 transitions. [2021-06-05 15:13:44,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 15:13:44,877 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:13:44,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:13:46,816 INFO L225 Difference]: With dead ends: 325590 [2021-06-05 15:13:46,817 INFO L226 Difference]: Without dead ends: 324958 [2021-06-05 15:13:46,817 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 22.9ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-06-05 15:13:47,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324958 states. [2021-06-05 15:13:53,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324958 to 210014. [2021-06-05 15:13:54,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210014 states, 210013 states have (on average 4.320808711841648) internal successors, (907426), 210013 states have internal predecessors, (907426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:13:56,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210014 states to 210014 states and 907426 transitions. [2021-06-05 15:13:56,244 INFO L78 Accepts]: Start accepts. Automaton has 210014 states and 907426 transitions. Word has length 46 [2021-06-05 15:13:56,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:13:56,244 INFO L482 AbstractCegarLoop]: Abstraction has 210014 states and 907426 transitions. [2021-06-05 15:13:56,244 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:13:56,244 INFO L276 IsEmpty]: Start isEmpty. Operand 210014 states and 907426 transitions. [2021-06-05 15:13:57,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:13:57,240 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:13:57,241 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:13:57,257 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-05 15:13:57,257 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:13:57,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:13:57,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1171918840, now seen corresponding path program 16 times [2021-06-05 15:13:57,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:13:57,258 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010264021] [2021-06-05 15:13:57,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:13:57,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:13:57,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:13:57,358 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:13:57,358 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010264021] [2021-06-05 15:13:57,358 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010264021] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:13:57,358 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:13:57,358 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 15:13:57,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990957554] [2021-06-05 15:13:57,359 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 15:13:57,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:13:57,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 15:13:57,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-06-05 15:13:57,359 INFO L87 Difference]: Start difference. First operand 210014 states and 907426 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:14:00,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:14:00,775 INFO L93 Difference]: Finished difference Result 316757 states and 1325452 transitions. [2021-06-05 15:14:00,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 15:14:00,781 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:14:00,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:14:02,604 INFO L225 Difference]: With dead ends: 316757 [2021-06-05 15:14:02,604 INFO L226 Difference]: Without dead ends: 314453 [2021-06-05 15:14:02,604 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 66.9ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 15:14:04,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314453 states. [2021-06-05 15:14:11,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314453 to 209291. [2021-06-05 15:14:11,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209291 states, 209290 states have (on average 4.209207319986621) internal successors, (880945), 209290 states have internal predecessors, (880945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:14:13,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209291 states to 209291 states and 880945 transitions. [2021-06-05 15:14:13,081 INFO L78 Accepts]: Start accepts. Automaton has 209291 states and 880945 transitions. Word has length 46 [2021-06-05 15:14:13,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:14:13,081 INFO L482 AbstractCegarLoop]: Abstraction has 209291 states and 880945 transitions. [2021-06-05 15:14:13,081 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:14:13,081 INFO L276 IsEmpty]: Start isEmpty. Operand 209291 states and 880945 transitions. [2021-06-05 15:14:14,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:14:14,373 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:14:14,373 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:14:14,373 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-05 15:14:14,373 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:14:14,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:14:14,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1000072394, now seen corresponding path program 17 times [2021-06-05 15:14:14,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:14:14,374 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212198264] [2021-06-05 15:14:14,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:14:14,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:14:14,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:14:14,421 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:14:14,421 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212198264] [2021-06-05 15:14:14,421 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212198264] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:14:14,421 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:14:14,421 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 15:14:14,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866986353] [2021-06-05 15:14:14,421 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 15:14:14,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:14:14,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 15:14:14,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-05 15:14:14,422 INFO L87 Difference]: Start difference. First operand 209291 states and 880945 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:14:16,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:14:16,530 INFO L93 Difference]: Finished difference Result 301671 states and 1254865 transitions. [2021-06-05 15:14:16,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 15:14:16,530 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:14:16,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:14:18,357 INFO L225 Difference]: With dead ends: 301671 [2021-06-05 15:14:18,357 INFO L226 Difference]: Without dead ends: 300815 [2021-06-05 15:14:18,358 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 20.3ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-06-05 15:14:19,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300815 states. [2021-06-05 15:14:24,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300815 to 205867. [2021-06-05 15:14:25,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205867 states, 205866 states have (on average 4.184071191940388) internal successors, (861358), 205866 states have internal predecessors, (861358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:14:26,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205867 states to 205867 states and 861358 transitions. [2021-06-05 15:14:26,186 INFO L78 Accepts]: Start accepts. Automaton has 205867 states and 861358 transitions. Word has length 46 [2021-06-05 15:14:26,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:14:26,186 INFO L482 AbstractCegarLoop]: Abstraction has 205867 states and 861358 transitions. [2021-06-05 15:14:26,186 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:14:26,186 INFO L276 IsEmpty]: Start isEmpty. Operand 205867 states and 861358 transitions. [2021-06-05 15:14:27,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:14:27,607 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:14:27,607 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:14:27,607 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-05 15:14:27,607 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:14:27,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:14:27,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1790180840, now seen corresponding path program 18 times [2021-06-05 15:14:27,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:14:27,608 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866751883] [2021-06-05 15:14:27,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:14:27,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:14:27,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:14:27,663 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:14:27,663 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866751883] [2021-06-05 15:14:27,663 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866751883] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:14:27,663 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:14:27,663 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 15:14:27,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604424736] [2021-06-05 15:14:27,665 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 15:14:27,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:14:27,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 15:14:27,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-06-05 15:14:27,665 INFO L87 Difference]: Start difference. First operand 205867 states and 861358 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:14:30,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:14:30,278 INFO L93 Difference]: Finished difference Result 301500 states and 1218655 transitions. [2021-06-05 15:14:30,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 15:14:30,278 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:14:30,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:14:32,410 INFO L225 Difference]: With dead ends: 301500 [2021-06-05 15:14:32,410 INFO L226 Difference]: Without dead ends: 298930 [2021-06-05 15:14:32,411 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 44.7ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 15:14:33,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298930 states. [2021-06-05 15:14:38,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298930 to 203045. [2021-06-05 15:14:38,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203045 states, 203044 states have (on average 4.065946297354268) internal successors, (825566), 203044 states have internal predecessors, (825566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:14:40,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203045 states to 203045 states and 825566 transitions. [2021-06-05 15:14:40,601 INFO L78 Accepts]: Start accepts. Automaton has 203045 states and 825566 transitions. Word has length 46 [2021-06-05 15:14:40,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:14:40,601 INFO L482 AbstractCegarLoop]: Abstraction has 203045 states and 825566 transitions. [2021-06-05 15:14:40,601 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:14:40,601 INFO L276 IsEmpty]: Start isEmpty. Operand 203045 states and 825566 transitions. [2021-06-05 15:14:41,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:14:41,052 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:14:41,053 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:14:41,053 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-05 15:14:41,053 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:14:41,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:14:41,053 INFO L82 PathProgramCache]: Analyzing trace with hash 709518024, now seen corresponding path program 19 times [2021-06-05 15:14:41,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:14:41,054 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757686078] [2021-06-05 15:14:41,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:14:41,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:14:41,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:14:41,870 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:14:41,870 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757686078] [2021-06-05 15:14:41,870 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757686078] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:14:41,870 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:14:41,871 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 15:14:41,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889459231] [2021-06-05 15:14:41,871 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 15:14:41,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:14:41,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 15:14:41,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-06-05 15:14:41,872 INFO L87 Difference]: Start difference. First operand 203045 states and 825566 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:14:43,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:14:43,879 INFO L93 Difference]: Finished difference Result 288060 states and 1146724 transitions. [2021-06-05 15:14:43,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 15:14:43,880 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:14:43,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:14:44,827 INFO L225 Difference]: With dead ends: 288060 [2021-06-05 15:14:44,827 INFO L226 Difference]: Without dead ends: 284768 [2021-06-05 15:14:44,827 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 42.7ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 15:14:46,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284768 states. [2021-06-05 15:14:50,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284768 to 191781. [2021-06-05 15:14:51,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191781 states, 191780 states have (on average 4.031426634685578) internal successors, (773147), 191780 states have internal predecessors, (773147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:14:52,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191781 states to 191781 states and 773147 transitions. [2021-06-05 15:14:52,900 INFO L78 Accepts]: Start accepts. Automaton has 191781 states and 773147 transitions. Word has length 46 [2021-06-05 15:14:52,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:14:52,900 INFO L482 AbstractCegarLoop]: Abstraction has 191781 states and 773147 transitions. [2021-06-05 15:14:52,900 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:14:52,900 INFO L276 IsEmpty]: Start isEmpty. Operand 191781 states and 773147 transitions. [2021-06-05 15:14:53,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:14:53,360 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:14:53,360 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:14:53,360 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-05 15:14:53,361 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:14:53,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:14:53,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1639152820, now seen corresponding path program 20 times [2021-06-05 15:14:53,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:14:53,361 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914761900] [2021-06-05 15:14:53,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:14:53,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:14:53,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:14:53,427 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:14:53,427 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914761900] [2021-06-05 15:14:53,427 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914761900] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:14:53,427 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:14:53,427 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 15:14:53,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305700188] [2021-06-05 15:14:53,427 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 15:14:53,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:14:53,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 15:14:53,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-06-05 15:14:53,428 INFO L87 Difference]: Start difference. First operand 191781 states and 773147 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:14:56,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:14:56,199 INFO L93 Difference]: Finished difference Result 289421 states and 1160347 transitions. [2021-06-05 15:14:56,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 15:14:56,199 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:14:56,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:14:57,339 INFO L225 Difference]: With dead ends: 289421 [2021-06-05 15:14:57,339 INFO L226 Difference]: Without dead ends: 289101 [2021-06-05 15:14:57,340 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 42.7ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-06-05 15:14:58,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289101 states. [2021-06-05 15:15:03,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289101 to 192581. [2021-06-05 15:15:04,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192581 states, 192580 states have (on average 4.028969778793229) internal successors, (775899), 192580 states have internal predecessors, (775899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:15:05,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192581 states to 192581 states and 775899 transitions. [2021-06-05 15:15:05,863 INFO L78 Accepts]: Start accepts. Automaton has 192581 states and 775899 transitions. Word has length 46 [2021-06-05 15:15:05,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:15:05,863 INFO L482 AbstractCegarLoop]: Abstraction has 192581 states and 775899 transitions. [2021-06-05 15:15:05,863 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:15:05,863 INFO L276 IsEmpty]: Start isEmpty. Operand 192581 states and 775899 transitions. [2021-06-05 15:15:06,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:15:06,434 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:15:06,434 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:15:06,434 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-05 15:15:06,435 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:15:06,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:15:06,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1671079830, now seen corresponding path program 21 times [2021-06-05 15:15:06,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:15:06,435 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974453702] [2021-06-05 15:15:06,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:15:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:15:06,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:15:06,493 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:15:06,493 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974453702] [2021-06-05 15:15:06,493 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974453702] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:15:06,493 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:15:06,493 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 15:15:06,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123921270] [2021-06-05 15:15:06,494 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 15:15:06,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:15:06,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 15:15:06,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-06-05 15:15:06,494 INFO L87 Difference]: Start difference. First operand 192581 states and 775899 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:15:08,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:15:08,911 INFO L93 Difference]: Finished difference Result 289605 states and 1158403 transitions. [2021-06-05 15:15:08,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 15:15:08,911 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:15:08,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:15:10,543 INFO L225 Difference]: With dead ends: 289605 [2021-06-05 15:15:10,544 INFO L226 Difference]: Without dead ends: 287589 [2021-06-05 15:15:10,544 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 50.3ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-06-05 15:15:11,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287589 states. [2021-06-05 15:15:17,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287589 to 190411. [2021-06-05 15:15:17,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190411 states, 190410 states have (on average 4.019452759834042) internal successors, (765344), 190410 states have internal predecessors, (765344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:15:19,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190411 states to 190411 states and 765344 transitions. [2021-06-05 15:15:19,159 INFO L78 Accepts]: Start accepts. Automaton has 190411 states and 765344 transitions. Word has length 46 [2021-06-05 15:15:19,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:15:19,159 INFO L482 AbstractCegarLoop]: Abstraction has 190411 states and 765344 transitions. [2021-06-05 15:15:19,159 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:15:19,159 INFO L276 IsEmpty]: Start isEmpty. Operand 190411 states and 765344 transitions. [2021-06-05 15:15:19,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:15:19,835 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:15:19,835 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:15:19,835 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-05 15:15:19,835 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:15:19,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:15:19,835 INFO L82 PathProgramCache]: Analyzing trace with hash -300064282, now seen corresponding path program 22 times [2021-06-05 15:15:19,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:15:19,836 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641178458] [2021-06-05 15:15:19,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:15:19,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:15:19,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:15:19,952 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:15:19,953 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641178458] [2021-06-05 15:15:19,953 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641178458] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:15:19,953 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:15:19,953 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 15:15:19,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339731159] [2021-06-05 15:15:19,953 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 15:15:19,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:15:19,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 15:15:19,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-06-05 15:15:19,965 INFO L87 Difference]: Start difference. First operand 190411 states and 765344 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:15:23,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:15:23,455 INFO L93 Difference]: Finished difference Result 295333 states and 1175576 transitions. [2021-06-05 15:15:23,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 15:15:23,456 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:15:23,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:15:25,314 INFO L225 Difference]: With dead ends: 295333 [2021-06-05 15:15:25,314 INFO L226 Difference]: Without dead ends: 289109 [2021-06-05 15:15:25,314 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 100.8ms TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2021-06-05 15:15:27,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289109 states. [2021-06-05 15:15:32,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289109 to 197773. [2021-06-05 15:15:32,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197773 states, 197772 states have (on average 3.9816859818376718) internal successors, (787466), 197772 states have internal predecessors, (787466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:15:34,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197773 states to 197773 states and 787466 transitions. [2021-06-05 15:15:34,193 INFO L78 Accepts]: Start accepts. Automaton has 197773 states and 787466 transitions. Word has length 46 [2021-06-05 15:15:34,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:15:34,193 INFO L482 AbstractCegarLoop]: Abstraction has 197773 states and 787466 transitions. [2021-06-05 15:15:34,193 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:15:34,193 INFO L276 IsEmpty]: Start isEmpty. Operand 197773 states and 787466 transitions. [2021-06-05 15:15:34,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:15:34,693 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:15:34,693 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:15:34,693 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-05 15:15:34,693 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:15:34,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:15:34,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1536830164, now seen corresponding path program 23 times [2021-06-05 15:15:34,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:15:34,694 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368054377] [2021-06-05 15:15:34,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:15:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:15:34,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:15:34,736 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:15:34,736 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368054377] [2021-06-05 15:15:34,736 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368054377] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:15:34,736 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:15:34,736 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 15:15:34,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886551960] [2021-06-05 15:15:34,736 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 15:15:34,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:15:34,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 15:15:34,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-06-05 15:15:34,737 INFO L87 Difference]: Start difference. First operand 197773 states and 787466 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:15:37,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:15:37,490 INFO L93 Difference]: Finished difference Result 299086 states and 1182852 transitions. [2021-06-05 15:15:37,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 15:15:37,490 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:15:37,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:15:38,584 INFO L225 Difference]: With dead ends: 299086 [2021-06-05 15:15:38,585 INFO L226 Difference]: Without dead ends: 298566 [2021-06-05 15:15:38,585 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 32.4ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-06-05 15:15:40,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298566 states. [2021-06-05 15:15:45,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298566 to 198823. [2021-06-05 15:15:45,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198823 states, 198822 states have (on average 3.9825371437768458) internal successors, (791816), 198822 states have internal predecessors, (791816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:15:47,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198823 states to 198823 states and 791816 transitions. [2021-06-05 15:15:47,168 INFO L78 Accepts]: Start accepts. Automaton has 198823 states and 791816 transitions. Word has length 46 [2021-06-05 15:15:47,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:15:47,169 INFO L482 AbstractCegarLoop]: Abstraction has 198823 states and 791816 transitions. [2021-06-05 15:15:47,169 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:15:47,169 INFO L276 IsEmpty]: Start isEmpty. Operand 198823 states and 791816 transitions. [2021-06-05 15:15:47,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:15:47,698 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:15:47,699 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:15:47,699 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-05 15:15:47,699 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:15:47,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:15:47,699 INFO L82 PathProgramCache]: Analyzing trace with hash -746721718, now seen corresponding path program 24 times [2021-06-05 15:15:47,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:15:47,699 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964012000] [2021-06-05 15:15:47,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:15:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:15:47,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:15:47,748 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:15:47,748 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964012000] [2021-06-05 15:15:47,748 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964012000] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:15:47,748 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:15:47,748 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 15:15:47,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397733177] [2021-06-05 15:15:47,748 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 15:15:47,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:15:47,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 15:15:47,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-06-05 15:15:47,749 INFO L87 Difference]: Start difference. First operand 198823 states and 791816 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:15:49,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:15:49,999 INFO L93 Difference]: Finished difference Result 294761 states and 1162068 transitions. [2021-06-05 15:15:49,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 15:15:49,999 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:15:49,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:15:51,519 INFO L225 Difference]: With dead ends: 294761 [2021-06-05 15:15:51,519 INFO L226 Difference]: Without dead ends: 292673 [2021-06-05 15:15:51,520 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 47.8ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-06-05 15:15:52,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292673 states. [2021-06-05 15:15:57,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292673 to 193969. [2021-06-05 15:15:58,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193969 states, 193968 states have (on average 3.976387857790976) internal successors, (771292), 193968 states have internal predecessors, (771292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:15:59,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193969 states to 193969 states and 771292 transitions. [2021-06-05 15:15:59,878 INFO L78 Accepts]: Start accepts. Automaton has 193969 states and 771292 transitions. Word has length 46 [2021-06-05 15:15:59,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:15:59,878 INFO L482 AbstractCegarLoop]: Abstraction has 193969 states and 771292 transitions. [2021-06-05 15:15:59,878 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:15:59,879 INFO L276 IsEmpty]: Start isEmpty. Operand 193969 states and 771292 transitions. [2021-06-05 15:16:00,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:16:00,575 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:16:00,576 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:16:00,576 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-05 15:16:00,576 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:16:00,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:16:00,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1798406086, now seen corresponding path program 25 times [2021-06-05 15:16:00,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:16:00,576 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643755588] [2021-06-05 15:16:00,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:16:00,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:16:00,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:16:00,663 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:16:00,663 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643755588] [2021-06-05 15:16:00,663 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643755588] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:16:00,663 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:16:00,663 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 15:16:00,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186149846] [2021-06-05 15:16:00,663 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 15:16:00,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:16:00,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 15:16:00,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-06-05 15:16:00,664 INFO L87 Difference]: Start difference. First operand 193969 states and 771292 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:16:04,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:16:04,115 INFO L93 Difference]: Finished difference Result 293030 states and 1142523 transitions. [2021-06-05 15:16:04,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 15:16:04,116 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:16:04,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:16:05,759 INFO L225 Difference]: With dead ends: 293030 [2021-06-05 15:16:05,759 INFO L226 Difference]: Without dead ends: 291722 [2021-06-05 15:16:05,760 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 95.3ms TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2021-06-05 15:16:07,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291722 states. [2021-06-05 15:16:13,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291722 to 200246. [2021-06-05 15:16:13,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200246 states, 200245 states have (on average 3.9184449049913854) internal successors, (784649), 200245 states have internal predecessors, (784649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:16:14,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200246 states to 200246 states and 784649 transitions. [2021-06-05 15:16:14,791 INFO L78 Accepts]: Start accepts. Automaton has 200246 states and 784649 transitions. Word has length 46 [2021-06-05 15:16:14,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:16:14,791 INFO L482 AbstractCegarLoop]: Abstraction has 200246 states and 784649 transitions. [2021-06-05 15:16:14,792 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:16:14,792 INFO L276 IsEmpty]: Start isEmpty. Operand 200246 states and 784649 transitions. [2021-06-05 15:16:15,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:16:15,308 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:16:15,308 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:16:15,308 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-05 15:16:15,308 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:16:15,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:16:15,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1370272520, now seen corresponding path program 26 times [2021-06-05 15:16:15,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:16:15,309 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897645311] [2021-06-05 15:16:15,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:16:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:16:15,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:16:15,358 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:16:15,358 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897645311] [2021-06-05 15:16:15,358 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897645311] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:16:15,358 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:16:15,358 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 15:16:15,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832741470] [2021-06-05 15:16:15,358 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 15:16:15,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:16:15,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 15:16:15,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-06-05 15:16:15,359 INFO L87 Difference]: Start difference. First operand 200246 states and 784649 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:16:17,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:16:17,561 INFO L93 Difference]: Finished difference Result 293831 states and 1136141 transitions. [2021-06-05 15:16:17,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 15:16:17,562 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:16:17,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:16:18,991 INFO L225 Difference]: With dead ends: 293831 [2021-06-05 15:16:18,991 INFO L226 Difference]: Without dead ends: 290963 [2021-06-05 15:16:18,991 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 44.7ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-06-05 15:16:19,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290963 states. [2021-06-05 15:16:25,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290963 to 193515. [2021-06-05 15:16:25,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193515 states, 193514 states have (on average 3.905562388250979) internal successors, (755781), 193514 states have internal predecessors, (755781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:16:26,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193515 states to 193515 states and 755781 transitions. [2021-06-05 15:16:26,237 INFO L78 Accepts]: Start accepts. Automaton has 193515 states and 755781 transitions. Word has length 46 [2021-06-05 15:16:26,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:16:26,237 INFO L482 AbstractCegarLoop]: Abstraction has 193515 states and 755781 transitions. [2021-06-05 15:16:26,237 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:16:26,238 INFO L276 IsEmpty]: Start isEmpty. Operand 193515 states and 755781 transitions. [2021-06-05 15:16:27,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:16:27,523 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:16:27,523 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:16:27,523 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-05 15:16:27,525 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:16:27,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:16:27,525 INFO L82 PathProgramCache]: Analyzing trace with hash 2029550822, now seen corresponding path program 27 times [2021-06-05 15:16:27,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:16:27,525 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687458643] [2021-06-05 15:16:27,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:16:27,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:16:27,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:16:27,586 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:16:27,586 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687458643] [2021-06-05 15:16:27,586 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687458643] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:16:27,586 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:16:27,586 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 15:16:27,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104981251] [2021-06-05 15:16:27,587 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 15:16:27,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:16:27,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 15:16:27,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-06-05 15:16:27,587 INFO L87 Difference]: Start difference. First operand 193515 states and 755781 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:16:29,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:16:29,853 INFO L93 Difference]: Finished difference Result 283290 states and 1078797 transitions. [2021-06-05 15:16:29,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 15:16:29,856 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:16:29,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:16:30,742 INFO L225 Difference]: With dead ends: 283290 [2021-06-05 15:16:30,742 INFO L226 Difference]: Without dead ends: 280266 [2021-06-05 15:16:30,742 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 74.6ms TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2021-06-05 15:16:32,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280266 states. [2021-06-05 15:16:36,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280266 to 193510. [2021-06-05 15:16:36,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193510 states, 193509 states have (on average 3.849350676195939) internal successors, (744884), 193509 states have internal predecessors, (744884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:16:38,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193510 states to 193510 states and 744884 transitions. [2021-06-05 15:16:38,517 INFO L78 Accepts]: Start accepts. Automaton has 193510 states and 744884 transitions. Word has length 46 [2021-06-05 15:16:38,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:16:38,517 INFO L482 AbstractCegarLoop]: Abstraction has 193510 states and 744884 transitions. [2021-06-05 15:16:38,517 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:16:38,517 INFO L276 IsEmpty]: Start isEmpty. Operand 193510 states and 744884 transitions. [2021-06-05 15:16:39,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:16:39,705 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:16:39,705 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:16:39,705 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-05 15:16:39,706 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:16:39,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:16:39,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1260957358, now seen corresponding path program 28 times [2021-06-05 15:16:39,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:16:39,707 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406416556] [2021-06-05 15:16:39,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:16:39,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:16:39,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:16:39,830 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:16:39,830 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406416556] [2021-06-05 15:16:39,831 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406416556] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:16:39,831 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:16:39,831 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 15:16:39,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408652759] [2021-06-05 15:16:39,831 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 15:16:39,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:16:39,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 15:16:39,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-06-05 15:16:39,832 INFO L87 Difference]: Start difference. First operand 193510 states and 744884 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:16:42,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:16:42,526 INFO L93 Difference]: Finished difference Result 270531 states and 1004554 transitions. [2021-06-05 15:16:42,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 15:16:42,527 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:16:42,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:16:43,735 INFO L225 Difference]: With dead ends: 270531 [2021-06-05 15:16:43,735 INFO L226 Difference]: Without dead ends: 262632 [2021-06-05 15:16:43,736 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 99.3ms TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2021-06-05 15:16:45,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262632 states. [2021-06-05 15:16:50,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262632 to 177887. [2021-06-05 15:16:50,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177887 states, 177886 states have (on average 3.7640623770279844) internal successors, (669574), 177886 states have internal predecessors, (669574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:16:50,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177887 states to 177887 states and 669574 transitions. [2021-06-05 15:16:50,901 INFO L78 Accepts]: Start accepts. Automaton has 177887 states and 669574 transitions. Word has length 46 [2021-06-05 15:16:50,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:16:50,901 INFO L482 AbstractCegarLoop]: Abstraction has 177887 states and 669574 transitions. [2021-06-05 15:16:50,901 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:16:50,901 INFO L276 IsEmpty]: Start isEmpty. Operand 177887 states and 669574 transitions. [2021-06-05 15:16:51,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:16:51,275 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:16:51,275 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:16:51,275 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-06-05 15:16:51,275 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:16:51,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:16:51,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1334758820, now seen corresponding path program 29 times [2021-06-05 15:16:51,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:16:51,275 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375891223] [2021-06-05 15:16:51,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:16:51,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:16:51,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:16:51,327 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:16:51,327 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375891223] [2021-06-05 15:16:51,327 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375891223] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:16:51,327 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:16:51,327 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 15:16:51,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856037237] [2021-06-05 15:16:51,327 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 15:16:51,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:16:51,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 15:16:51,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-06-05 15:16:51,328 INFO L87 Difference]: Start difference. First operand 177887 states and 669574 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:16:54,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:16:54,212 INFO L93 Difference]: Finished difference Result 248384 states and 919697 transitions. [2021-06-05 15:16:54,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 15:16:54,213 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:16:54,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:16:55,031 INFO L225 Difference]: With dead ends: 248384 [2021-06-05 15:16:55,032 INFO L226 Difference]: Without dead ends: 248064 [2021-06-05 15:16:55,032 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 833.1ms TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2021-06-05 15:16:55,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248064 states. [2021-06-05 15:16:59,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248064 to 177855. [2021-06-05 15:17:00,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177855 states, 177854 states have (on average 3.7614110450144502) internal successors, (668982), 177854 states have internal predecessors, (668982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:17:01,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177855 states to 177855 states and 668982 transitions. [2021-06-05 15:17:01,662 INFO L78 Accepts]: Start accepts. Automaton has 177855 states and 668982 transitions. Word has length 46 [2021-06-05 15:17:01,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:17:01,662 INFO L482 AbstractCegarLoop]: Abstraction has 177855 states and 668982 transitions. [2021-06-05 15:17:01,663 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:17:01,663 INFO L276 IsEmpty]: Start isEmpty. Operand 177855 states and 668982 transitions. [2021-06-05 15:17:02,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:17:02,071 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:17:02,071 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:17:02,071 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-05 15:17:02,071 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:17:02,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:17:02,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1029432924, now seen corresponding path program 30 times [2021-06-05 15:17:02,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:17:02,071 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574194736] [2021-06-05 15:17:02,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:17:02,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:17:02,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:17:02,122 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:17:02,122 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574194736] [2021-06-05 15:17:02,122 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574194736] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:17:02,122 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:17:02,122 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 15:17:02,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822863361] [2021-06-05 15:17:02,122 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 15:17:02,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:17:02,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 15:17:02,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-06-05 15:17:02,123 INFO L87 Difference]: Start difference. First operand 177855 states and 668982 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:17:04,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:17:04,271 INFO L93 Difference]: Finished difference Result 251976 states and 930539 transitions. [2021-06-05 15:17:04,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 15:17:04,271 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:17:04,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:17:05,466 INFO L225 Difference]: With dead ends: 251976 [2021-06-05 15:17:05,466 INFO L226 Difference]: Without dead ends: 249960 [2021-06-05 15:17:05,467 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 71.1ms TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2021-06-05 15:17:06,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249960 states. [2021-06-05 15:17:10,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249960 to 176831. [2021-06-05 15:17:10,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176831 states, 176830 states have (on average 3.750076344511678) internal successors, (663126), 176830 states have internal predecessors, (663126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:17:11,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176831 states to 176831 states and 663126 transitions. [2021-06-05 15:17:11,184 INFO L78 Accepts]: Start accepts. Automaton has 176831 states and 663126 transitions. Word has length 46 [2021-06-05 15:17:11,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:17:11,184 INFO L482 AbstractCegarLoop]: Abstraction has 176831 states and 663126 transitions. [2021-06-05 15:17:11,184 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:17:11,184 INFO L276 IsEmpty]: Start isEmpty. Operand 176831 states and 663126 transitions. [2021-06-05 15:17:12,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:17:12,391 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:17:12,391 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:17:12,391 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-06-05 15:17:12,392 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:17:12,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:17:12,392 INFO L82 PathProgramCache]: Analyzing trace with hash -75273820, now seen corresponding path program 31 times [2021-06-05 15:17:12,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:17:12,392 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048086721] [2021-06-05 15:17:12,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:17:12,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:17:12,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:17:12,515 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:17:12,515 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048086721] [2021-06-05 15:17:12,515 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048086721] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:17:12,515 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:17:12,515 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 15:17:12,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375972104] [2021-06-05 15:17:12,515 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 15:17:12,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:17:12,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 15:17:12,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-06-05 15:17:12,516 INFO L87 Difference]: Start difference. First operand 176831 states and 663126 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:17:14,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:17:14,544 INFO L93 Difference]: Finished difference Result 243984 states and 901479 transitions. [2021-06-05 15:17:14,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-05 15:17:14,545 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:17:14,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:17:15,305 INFO L225 Difference]: With dead ends: 243984 [2021-06-05 15:17:15,305 INFO L226 Difference]: Without dead ends: 237760 [2021-06-05 15:17:15,306 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 121.9ms TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2021-06-05 15:17:15,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237760 states. [2021-06-05 15:17:19,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237760 to 173831. [2021-06-05 15:17:20,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173831 states, 173830 states have (on average 3.735304607950296) internal successors, (649308), 173830 states have internal predecessors, (649308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:17:21,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173831 states to 173831 states and 649308 transitions. [2021-06-05 15:17:21,592 INFO L78 Accepts]: Start accepts. Automaton has 173831 states and 649308 transitions. Word has length 46 [2021-06-05 15:17:21,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:17:21,592 INFO L482 AbstractCegarLoop]: Abstraction has 173831 states and 649308 transitions. [2021-06-05 15:17:21,592 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:17:21,592 INFO L276 IsEmpty]: Start isEmpty. Operand 173831 states and 649308 transitions. [2021-06-05 15:17:22,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:17:22,684 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:17:22,684 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:17:22,685 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-05 15:17:22,685 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:17:22,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:17:22,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1508962954, now seen corresponding path program 32 times [2021-06-05 15:17:22,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:17:22,686 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132262159] [2021-06-05 15:17:22,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:17:22,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:17:22,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:17:22,809 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:17:22,809 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132262159] [2021-06-05 15:17:22,809 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132262159] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:17:22,809 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:17:22,809 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-05 15:17:22,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755332135] [2021-06-05 15:17:22,811 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 15:17:22,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:17:22,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 15:17:22,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-06-05 15:17:22,812 INFO L87 Difference]: Start difference. First operand 173831 states and 649308 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:17:25,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:17:25,343 INFO L93 Difference]: Finished difference Result 243411 states and 895074 transitions. [2021-06-05 15:17:25,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 15:17:25,344 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:17:25,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:17:26,466 INFO L225 Difference]: With dead ends: 243411 [2021-06-05 15:17:26,467 INFO L226 Difference]: Without dead ends: 233779 [2021-06-05 15:17:26,468 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 174.8ms TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2021-06-05 15:17:27,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233779 states. [2021-06-05 15:17:31,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233779 to 176360. [2021-06-05 15:17:31,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176360 states, 176359 states have (on average 3.7175307185910555) internal successors, (655620), 176359 states have internal predecessors, (655620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:17:33,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176360 states to 176360 states and 655620 transitions. [2021-06-05 15:17:33,142 INFO L78 Accepts]: Start accepts. Automaton has 176360 states and 655620 transitions. Word has length 46 [2021-06-05 15:17:33,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:17:33,142 INFO L482 AbstractCegarLoop]: Abstraction has 176360 states and 655620 transitions. [2021-06-05 15:17:33,142 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:17:33,143 INFO L276 IsEmpty]: Start isEmpty. Operand 176360 states and 655620 transitions. [2021-06-05 15:17:33,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:17:33,551 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:17:33,551 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:17:33,551 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-06-05 15:17:33,551 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:17:33,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:17:33,552 INFO L82 PathProgramCache]: Analyzing trace with hash 61777796, now seen corresponding path program 33 times [2021-06-05 15:17:33,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:17:33,552 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958149435] [2021-06-05 15:17:33,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:17:33,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:17:33,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:17:33,596 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:17:33,596 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958149435] [2021-06-05 15:17:33,596 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958149435] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:17:33,596 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:17:33,597 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 15:17:33,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777306686] [2021-06-05 15:17:33,597 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 15:17:33,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:17:33,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 15:17:33,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-06-05 15:17:33,597 INFO L87 Difference]: Start difference. First operand 176360 states and 655620 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:17:35,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:17:35,595 INFO L93 Difference]: Finished difference Result 252502 states and 922596 transitions. [2021-06-05 15:17:35,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 15:17:35,595 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:17:35,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:17:36,903 INFO L225 Difference]: With dead ends: 252502 [2021-06-05 15:17:36,903 INFO L226 Difference]: Without dead ends: 252270 [2021-06-05 15:17:36,904 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 42.7ms TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2021-06-05 15:17:37,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252270 states. [2021-06-05 15:17:41,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252270 to 176292. [2021-06-05 15:17:41,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176292 states, 176291 states have (on average 3.7161511364732176) internal successors, (655124), 176291 states have internal predecessors, (655124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:17:42,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176292 states to 176292 states and 655124 transitions. [2021-06-05 15:17:42,473 INFO L78 Accepts]: Start accepts. Automaton has 176292 states and 655124 transitions. Word has length 46 [2021-06-05 15:17:42,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:17:42,474 INFO L482 AbstractCegarLoop]: Abstraction has 176292 states and 655124 transitions. [2021-06-05 15:17:42,474 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:17:42,474 INFO L276 IsEmpty]: Start isEmpty. Operand 176292 states and 655124 transitions. [2021-06-05 15:17:43,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:17:43,639 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:17:43,639 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:17:43,639 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-06-05 15:17:43,639 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:17:43,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:17:43,640 INFO L82 PathProgramCache]: Analyzing trace with hash -1480378492, now seen corresponding path program 34 times [2021-06-05 15:17:43,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:17:43,640 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302647268] [2021-06-05 15:17:43,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:17:43,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:17:43,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:17:43,749 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:17:43,749 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302647268] [2021-06-05 15:17:43,749 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302647268] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:17:43,749 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:17:43,749 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 15:17:43,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395062393] [2021-06-05 15:17:43,749 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 15:17:43,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:17:43,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 15:17:43,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-06-05 15:17:43,750 INFO L87 Difference]: Start difference. First operand 176292 states and 655124 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:17:45,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:17:45,731 INFO L93 Difference]: Finished difference Result 256485 states and 935781 transitions. [2021-06-05 15:17:45,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 15:17:45,732 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:17:45,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:17:46,529 INFO L225 Difference]: With dead ends: 256485 [2021-06-05 15:17:46,529 INFO L226 Difference]: Without dead ends: 255477 [2021-06-05 15:17:46,529 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 81.4ms TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2021-06-05 15:17:47,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255477 states. [2021-06-05 15:17:51,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255477 to 174951. [2021-06-05 15:17:51,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174951 states, 174950 states have (on average 3.708448128036582) internal successors, (648793), 174950 states have internal predecessors, (648793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:17:52,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174951 states to 174951 states and 648793 transitions. [2021-06-05 15:17:52,885 INFO L78 Accepts]: Start accepts. Automaton has 174951 states and 648793 transitions. Word has length 46 [2021-06-05 15:17:52,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:17:52,885 INFO L482 AbstractCegarLoop]: Abstraction has 174951 states and 648793 transitions. [2021-06-05 15:17:52,885 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:17:52,885 INFO L276 IsEmpty]: Start isEmpty. Operand 174951 states and 648793 transitions. [2021-06-05 15:17:53,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:17:53,280 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:17:53,280 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:17:53,280 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-06-05 15:17:53,281 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:17:53,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:17:53,281 INFO L82 PathProgramCache]: Analyzing trace with hash 647892868, now seen corresponding path program 35 times [2021-06-05 15:17:53,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:17:53,281 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873883484] [2021-06-05 15:17:53,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:17:53,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:17:53,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:17:53,339 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:17:53,340 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873883484] [2021-06-05 15:17:53,340 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873883484] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:17:53,340 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:17:53,340 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 15:17:53,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766008766] [2021-06-05 15:17:53,340 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 15:17:53,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:17:53,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 15:17:53,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-06-05 15:17:53,341 INFO L87 Difference]: Start difference. First operand 174951 states and 648793 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:17:55,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:17:55,475 INFO L93 Difference]: Finished difference Result 244216 states and 893757 transitions. [2021-06-05 15:17:55,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-05 15:17:55,475 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:17:55,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:17:56,664 INFO L225 Difference]: With dead ends: 244216 [2021-06-05 15:17:56,664 INFO L226 Difference]: Without dead ends: 241900 [2021-06-05 15:17:56,665 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 83.7ms TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2021-06-05 15:17:57,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241900 states. [2021-06-05 15:18:01,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241900 to 172803. [2021-06-05 15:18:01,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172803 states, 172802 states have (on average 3.7055358155576905) internal successors, (640324), 172802 states have internal predecessors, (640324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:18:02,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172803 states to 172803 states and 640324 transitions. [2021-06-05 15:18:02,216 INFO L78 Accepts]: Start accepts. Automaton has 172803 states and 640324 transitions. Word has length 46 [2021-06-05 15:18:02,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:18:02,216 INFO L482 AbstractCegarLoop]: Abstraction has 172803 states and 640324 transitions. [2021-06-05 15:18:02,216 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:18:02,216 INFO L276 IsEmpty]: Start isEmpty. Operand 172803 states and 640324 transitions. [2021-06-05 15:18:02,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:18:02,574 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:18:02,574 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:18:02,575 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-06-05 15:18:02,575 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:18:02,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:18:02,575 INFO L82 PathProgramCache]: Analyzing trace with hash -771547030, now seen corresponding path program 36 times [2021-06-05 15:18:02,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:18:02,575 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915795090] [2021-06-05 15:18:02,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:18:02,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:18:02,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:18:02,639 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:18:02,639 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915795090] [2021-06-05 15:18:02,639 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915795090] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:18:02,639 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:18:02,640 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-05 15:18:02,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433284487] [2021-06-05 15:18:02,640 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 15:18:02,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:18:02,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 15:18:02,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-06-05 15:18:02,640 INFO L87 Difference]: Start difference. First operand 172803 states and 640324 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:18:05,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:18:05,404 INFO L93 Difference]: Finished difference Result 246288 states and 898984 transitions. [2021-06-05 15:18:05,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 15:18:05,404 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:18:05,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:18:06,939 INFO L225 Difference]: With dead ends: 246288 [2021-06-05 15:18:06,939 INFO L226 Difference]: Without dead ends: 244180 [2021-06-05 15:18:06,940 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 111.9ms TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2021-06-05 15:18:07,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244180 states. [2021-06-05 15:18:11,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244180 to 178415. [2021-06-05 15:18:12,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178415 states, 178414 states have (on average 3.689693633907653) internal successors, (658293), 178414 states have internal predecessors, (658293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:18:12,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178415 states to 178415 states and 658293 transitions. [2021-06-05 15:18:12,788 INFO L78 Accepts]: Start accepts. Automaton has 178415 states and 658293 transitions. Word has length 46 [2021-06-05 15:18:12,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:18:12,788 INFO L482 AbstractCegarLoop]: Abstraction has 178415 states and 658293 transitions. [2021-06-05 15:18:12,788 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:18:12,788 INFO L276 IsEmpty]: Start isEmpty. Operand 178415 states and 658293 transitions. [2021-06-05 15:18:14,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:18:14,023 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:18:14,023 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:18:14,023 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-06-05 15:18:14,024 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:18:14,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:18:14,025 INFO L82 PathProgramCache]: Analyzing trace with hash -268062650, now seen corresponding path program 37 times [2021-06-05 15:18:14,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:18:14,025 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494357536] [2021-06-05 15:18:14,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:18:14,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:18:14,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:18:14,112 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:18:14,112 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494357536] [2021-06-05 15:18:14,112 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494357536] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:18:14,112 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:18:14,112 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-05 15:18:14,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577964370] [2021-06-05 15:18:14,114 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 15:18:14,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:18:14,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 15:18:14,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-06-05 15:18:14,114 INFO L87 Difference]: Start difference. First operand 178415 states and 658293 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:18:16,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:18:16,240 INFO L93 Difference]: Finished difference Result 264778 states and 956726 transitions. [2021-06-05 15:18:16,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 15:18:16,241 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:18:16,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:18:17,028 INFO L225 Difference]: With dead ends: 264778 [2021-06-05 15:18:17,028 INFO L226 Difference]: Without dead ends: 255788 [2021-06-05 15:18:17,029 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 114.3ms TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2021-06-05 15:18:18,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255788 states. [2021-06-05 15:18:21,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255788 to 170344. [2021-06-05 15:18:21,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170344 states, 170343 states have (on average 3.651931690765103) internal successors, (622081), 170343 states have internal predecessors, (622081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:18:23,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170344 states to 170344 states and 622081 transitions. [2021-06-05 15:18:23,104 INFO L78 Accepts]: Start accepts. Automaton has 170344 states and 622081 transitions. Word has length 46 [2021-06-05 15:18:23,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:18:23,104 INFO L482 AbstractCegarLoop]: Abstraction has 170344 states and 622081 transitions. [2021-06-05 15:18:23,104 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:18:23,104 INFO L276 IsEmpty]: Start isEmpty. Operand 170344 states and 622081 transitions. [2021-06-05 15:18:23,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:18:23,535 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:18:23,535 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:18:23,535 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-06-05 15:18:23,535 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:18:23,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:18:23,536 INFO L82 PathProgramCache]: Analyzing trace with hash 2109582830, now seen corresponding path program 38 times [2021-06-05 15:18:23,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:18:23,536 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461953898] [2021-06-05 15:18:23,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:18:23,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:18:23,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:18:23,602 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:18:23,603 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461953898] [2021-06-05 15:18:23,603 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461953898] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:18:23,603 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:18:23,603 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-05 15:18:23,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978424662] [2021-06-05 15:18:23,603 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 15:18:23,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:18:23,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 15:18:23,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-06-05 15:18:23,604 INFO L87 Difference]: Start difference. First operand 170344 states and 622081 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:18:25,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:18:25,823 INFO L93 Difference]: Finished difference Result 259177 states and 926835 transitions. [2021-06-05 15:18:25,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 15:18:25,824 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:18:25,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:18:27,004 INFO L225 Difference]: With dead ends: 259177 [2021-06-05 15:18:27,004 INFO L226 Difference]: Without dead ends: 250948 [2021-06-05 15:18:27,005 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 111.1ms TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2021-06-05 15:18:27,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250948 states. [2021-06-05 15:18:30,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250948 to 163203. [2021-06-05 15:18:31,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163203 states, 163202 states have (on average 3.632841509295229) internal successors, (592887), 163202 states have internal predecessors, (592887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:18:32,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163203 states to 163203 states and 592887 transitions. [2021-06-05 15:18:32,358 INFO L78 Accepts]: Start accepts. Automaton has 163203 states and 592887 transitions. Word has length 46 [2021-06-05 15:18:32,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:18:32,359 INFO L482 AbstractCegarLoop]: Abstraction has 163203 states and 592887 transitions. [2021-06-05 15:18:32,359 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:18:32,359 INFO L276 IsEmpty]: Start isEmpty. Operand 163203 states and 592887 transitions. [2021-06-05 15:18:32,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:18:32,695 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:18:32,695 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:18:32,695 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-06-05 15:18:32,695 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:18:32,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:18:32,696 INFO L82 PathProgramCache]: Analyzing trace with hash 877862332, now seen corresponding path program 39 times [2021-06-05 15:18:32,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:18:32,696 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646554833] [2021-06-05 15:18:32,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:18:32,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:18:32,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:18:32,733 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:18:32,733 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646554833] [2021-06-05 15:18:32,733 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646554833] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:18:32,734 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:18:32,734 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 15:18:32,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547021423] [2021-06-05 15:18:32,734 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 15:18:32,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:18:32,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 15:18:32,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-06-05 15:18:32,734 INFO L87 Difference]: Start difference. First operand 163203 states and 592887 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:18:34,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:18:34,615 INFO L93 Difference]: Finished difference Result 261836 states and 927885 transitions. [2021-06-05 15:18:34,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 15:18:34,616 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:18:34,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:18:35,887 INFO L225 Difference]: With dead ends: 261836 [2021-06-05 15:18:35,887 INFO L226 Difference]: Without dead ends: 258726 [2021-06-05 15:18:35,887 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 36.0ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 15:18:36,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258726 states. [2021-06-05 15:18:39,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258726 to 149085. [2021-06-05 15:18:39,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149085 states, 149084 states have (on average 3.572361889941241) internal successors, (532582), 149084 states have internal predecessors, (532582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:18:40,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149085 states to 149085 states and 532582 transitions. [2021-06-05 15:18:40,979 INFO L78 Accepts]: Start accepts. Automaton has 149085 states and 532582 transitions. Word has length 46 [2021-06-05 15:18:40,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:18:40,979 INFO L482 AbstractCegarLoop]: Abstraction has 149085 states and 532582 transitions. [2021-06-05 15:18:40,979 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:18:40,979 INFO L276 IsEmpty]: Start isEmpty. Operand 149085 states and 532582 transitions. [2021-06-05 15:18:41,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:18:41,327 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:18:41,327 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:18:41,327 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-06-05 15:18:41,327 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:18:41,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:18:41,327 INFO L82 PathProgramCache]: Analyzing trace with hash 371477210, now seen corresponding path program 40 times [2021-06-05 15:18:41,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:18:41,328 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926518614] [2021-06-05 15:18:41,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:18:41,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:18:41,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:18:41,375 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:18:41,375 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926518614] [2021-06-05 15:18:41,375 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926518614] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:18:41,375 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:18:41,376 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 15:18:41,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455744149] [2021-06-05 15:18:41,376 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 15:18:41,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:18:41,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 15:18:41,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-06-05 15:18:41,376 INFO L87 Difference]: Start difference. First operand 149085 states and 532582 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:18:43,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:18:43,301 INFO L93 Difference]: Finished difference Result 223326 states and 751109 transitions. [2021-06-05 15:18:43,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 15:18:43,302 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:18:43,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:18:43,852 INFO L225 Difference]: With dead ends: 223326 [2021-06-05 15:18:43,852 INFO L226 Difference]: Without dead ends: 212581 [2021-06-05 15:18:43,853 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 71.7ms TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2021-06-05 15:18:44,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212581 states. [2021-06-05 15:18:47,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212581 to 131099. [2021-06-05 15:18:47,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131099 states, 131098 states have (on average 3.4141787060061937) internal successors, (447592), 131098 states have internal predecessors, (447592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:18:48,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131099 states to 131099 states and 447592 transitions. [2021-06-05 15:18:48,320 INFO L78 Accepts]: Start accepts. Automaton has 131099 states and 447592 transitions. Word has length 46 [2021-06-05 15:18:48,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:18:48,339 INFO L482 AbstractCegarLoop]: Abstraction has 131099 states and 447592 transitions. [2021-06-05 15:18:48,339 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:18:48,339 INFO L276 IsEmpty]: Start isEmpty. Operand 131099 states and 447592 transitions. [2021-06-05 15:18:48,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:18:48,633 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:18:48,633 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:18:48,633 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-06-05 15:18:48,633 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:18:48,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:18:48,633 INFO L82 PathProgramCache]: Analyzing trace with hash 132428666, now seen corresponding path program 41 times [2021-06-05 15:18:48,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:18:48,633 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114659556] [2021-06-05 15:18:48,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:18:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:18:48,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:18:48,689 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:18:48,689 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114659556] [2021-06-05 15:18:48,689 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114659556] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:18:48,689 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:18:48,690 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 15:18:48,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614976263] [2021-06-05 15:18:48,690 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 15:18:48,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:18:48,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 15:18:48,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-06-05 15:18:48,691 INFO L87 Difference]: Start difference. First operand 131099 states and 447592 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:18:50,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:18:50,429 INFO L93 Difference]: Finished difference Result 188860 states and 626123 transitions. [2021-06-05 15:18:50,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-05 15:18:50,430 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:18:50,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:18:51,391 INFO L225 Difference]: With dead ends: 188860 [2021-06-05 15:18:51,391 INFO L226 Difference]: Without dead ends: 183900 [2021-06-05 15:18:51,391 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 77.0ms TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2021-06-05 15:18:52,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183900 states. [2021-06-05 15:18:55,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183900 to 124043. [2021-06-05 15:18:55,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124043 states, 124042 states have (on average 3.3897067122426274) internal successors, (420466), 124042 states have internal predecessors, (420466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:18:55,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124043 states to 124043 states and 420466 transitions. [2021-06-05 15:18:55,568 INFO L78 Accepts]: Start accepts. Automaton has 124043 states and 420466 transitions. Word has length 46 [2021-06-05 15:18:55,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:18:55,568 INFO L482 AbstractCegarLoop]: Abstraction has 124043 states and 420466 transitions. [2021-06-05 15:18:55,568 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:18:55,568 INFO L276 IsEmpty]: Start isEmpty. Operand 124043 states and 420466 transitions. [2021-06-05 15:18:55,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:18:55,784 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:18:55,784 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:18:55,784 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-06-05 15:18:55,784 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:18:55,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:18:55,784 INFO L82 PathProgramCache]: Analyzing trace with hash -750228296, now seen corresponding path program 42 times [2021-06-05 15:18:55,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:18:55,784 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247634369] [2021-06-05 15:18:55,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:18:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:18:55,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:18:55,852 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:18:55,852 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247634369] [2021-06-05 15:18:55,852 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247634369] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:18:55,852 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:18:55,852 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-05 15:18:55,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048961835] [2021-06-05 15:18:55,852 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 15:18:55,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:18:55,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 15:18:55,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-06-05 15:18:55,853 INFO L87 Difference]: Start difference. First operand 124043 states and 420466 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:18:57,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:18:57,485 INFO L93 Difference]: Finished difference Result 175203 states and 571916 transitions. [2021-06-05 15:18:57,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 15:18:57,485 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:18:57,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:18:57,876 INFO L225 Difference]: With dead ends: 175203 [2021-06-05 15:18:57,876 INFO L226 Difference]: Without dead ends: 170645 [2021-06-05 15:18:57,877 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 110.4ms TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2021-06-05 15:18:58,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170645 states. [2021-06-05 15:19:00,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170645 to 119703. [2021-06-05 15:19:01,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119703 states, 119702 states have (on average 3.384379542530618) internal successors, (405117), 119702 states have internal predecessors, (405117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:19:01,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119703 states to 119703 states and 405117 transitions. [2021-06-05 15:19:01,315 INFO L78 Accepts]: Start accepts. Automaton has 119703 states and 405117 transitions. Word has length 46 [2021-06-05 15:19:01,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:19:01,315 INFO L482 AbstractCegarLoop]: Abstraction has 119703 states and 405117 transitions. [2021-06-05 15:19:01,315 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:19:01,315 INFO L276 IsEmpty]: Start isEmpty. Operand 119703 states and 405117 transitions. [2021-06-05 15:19:02,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:19:02,200 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:19:02,200 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:19:02,200 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-06-05 15:19:02,201 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:19:02,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:19:02,201 INFO L82 PathProgramCache]: Analyzing trace with hash -860211164, now seen corresponding path program 43 times [2021-06-05 15:19:02,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:19:02,201 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420963381] [2021-06-05 15:19:02,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:19:02,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:19:02,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:19:02,293 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:19:02,293 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420963381] [2021-06-05 15:19:02,293 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420963381] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:19:02,293 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:19:02,294 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 15:19:02,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21581859] [2021-06-05 15:19:02,295 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 15:19:02,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:19:02,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 15:19:02,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-06-05 15:19:02,309 INFO L87 Difference]: Start difference. First operand 119703 states and 405117 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:19:04,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:19:04,028 INFO L93 Difference]: Finished difference Result 209332 states and 694424 transitions. [2021-06-05 15:19:04,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-05 15:19:04,029 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:19:04,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:19:04,699 INFO L225 Difference]: With dead ends: 209332 [2021-06-05 15:19:04,699 INFO L226 Difference]: Without dead ends: 209012 [2021-06-05 15:19:04,699 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 70.8ms TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2021-06-05 15:19:05,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209012 states. [2021-06-05 15:19:08,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209012 to 119543. [2021-06-05 15:19:08,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119543 states, 119542 states have (on average 3.380477154472905) internal successors, (404109), 119542 states have internal predecessors, (404109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:19:08,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119543 states to 119543 states and 404109 transitions. [2021-06-05 15:19:08,490 INFO L78 Accepts]: Start accepts. Automaton has 119543 states and 404109 transitions. Word has length 46 [2021-06-05 15:19:08,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:19:08,490 INFO L482 AbstractCegarLoop]: Abstraction has 119543 states and 404109 transitions. [2021-06-05 15:19:08,491 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:19:08,491 INFO L276 IsEmpty]: Start isEmpty. Operand 119543 states and 404109 transitions. [2021-06-05 15:19:08,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 15:19:08,720 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:19:08,720 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:19:08,720 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-06-05 15:19:08,720 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 15:19:08,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:19:08,720 INFO L82 PathProgramCache]: Analyzing trace with hash 1070564388, now seen corresponding path program 44 times [2021-06-05 15:19:08,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:19:08,721 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744542874] [2021-06-05 15:19:08,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:19:08,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:19:08,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:19:08,777 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:19:08,777 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744542874] [2021-06-05 15:19:08,777 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744542874] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:19:08,777 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:19:08,777 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 15:19:08,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748096841] [2021-06-05 15:19:08,777 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 15:19:08,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:19:08,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 15:19:08,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-06-05 15:19:08,778 INFO L87 Difference]: Start difference. First operand 119543 states and 404109 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:19:10,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:19:10,569 INFO L93 Difference]: Finished difference Result 210764 states and 697768 transitions. [2021-06-05 15:19:10,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-05 15:19:10,569 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 15:19:10,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:19:11,068 INFO L225 Difference]: With dead ends: 210764 [2021-06-05 15:19:11,068 INFO L226 Difference]: Without dead ends: 208556 [2021-06-05 15:19:11,068 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 79.5ms TimeCoverageRelationStatistics Valid=96, Invalid=176, Unknown=0, NotChecked=0, Total=272 [2021-06-05 15:19:12,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208556 states. Received shutdown request... [2021-06-05 15:19:12,251 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-06-05 15:19:12,251 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-05 15:19:12,252 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 15:19:12,254 WARN L196 ceAbstractionStarter]: Timeout [2021-06-05 15:19:12,255 INFO L202 PluginConnector]: Adding new model ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 03:19:12 BasicIcfg [2021-06-05 15:19:12,255 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 15:19:12,255 INFO L168 Benchmark]: Toolchain (without parser) took 557908.74 ms. Allocated memory was 343.9 MB in the beginning and 16.0 GB in the end (delta: 15.7 GB). Free memory was 322.9 MB in the beginning and 11.7 GB in the end (delta: -11.3 GB). Peak memory consumption was 4.8 GB. Max. memory is 16.0 GB. [2021-06-05 15:19:12,255 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 343.9 MB. Free memory is still 324.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 15:19:12,255 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.77 ms. Allocated memory is still 343.9 MB. Free memory was 322.8 MB in the beginning and 321.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 15:19:12,255 INFO L168 Benchmark]: Boogie Preprocessor took 12.75 ms. Allocated memory is still 343.9 MB. Free memory was 321.4 MB in the beginning and 320.4 MB in the end (delta: 978.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 15:19:12,256 INFO L168 Benchmark]: RCFGBuilder took 295.74 ms. Allocated memory is still 343.9 MB. Free memory was 320.3 MB in the beginning and 303.8 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-06-05 15:19:12,256 INFO L168 Benchmark]: TraceAbstraction took 557571.14 ms. Allocated memory was 343.9 MB in the beginning and 16.0 GB in the end (delta: 15.7 GB). Free memory was 303.3 MB in the beginning and 11.7 GB in the end (delta: -11.4 GB). Peak memory consumption was 4.8 GB. Max. memory is 16.0 GB. [2021-06-05 15:19:12,256 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 0.11 ms. Allocated memory is still 343.9 MB. Free memory is still 324.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 24.77 ms. Allocated memory is still 343.9 MB. Free memory was 322.8 MB in the beginning and 321.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.75 ms. Allocated memory is still 343.9 MB. Free memory was 321.4 MB in the beginning and 320.4 MB in the end (delta: 978.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 295.74 ms. Allocated memory is still 343.9 MB. Free memory was 320.3 MB in the beginning and 303.8 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 557571.14 ms. Allocated memory was 343.9 MB in the beginning and 16.0 GB in the end (delta: 15.7 GB). Free memory was 303.3 MB in the beginning and 11.7 GB in the end (delta: -11.4 GB). Peak memory consumption was 4.8 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 98]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 99]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 101]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 100]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 13 procedures, 98 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 557441.0ms, OverallIterations: 44, TraceHistogramMax: 1, EmptinessCheckTime: 29544.6ms, AutomataDifference: 175576.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15276.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4909 SDtfs, 7834 SDslu, 17055 SDs, 0 SdLazy, 17515 SolverSat, 3097 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10480.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 645 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 476 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 808 ImplicationChecksByTransitivity, 3474.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=224674occurred in iteration=10, InterpolantAutomatonStates: 476, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 332675.9ms AutomataMinimizationTime, 44 MinimizatonAttempts, 3952235 StatesRemovedByMinimization, 42 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 126.2ms SsaConstructionTime, 447.3ms SatisfiabilityAnalysisTime, 3409.0ms InterpolantComputationTime, 2024 NumberOfCodeBlocks, 2024 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 1980 ConstructedInterpolants, 0 QuantifiedInterpolants, 6026 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 44 InterpolantComputations, 44 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