/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/showcase/Bakery.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-10 23:59:40,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 23:59:40,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 23:59:40,418 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-10 23:59:40,472 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-02-10 23:59:40,501 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 23:59:40,501 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 23:59:40,501 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 23:59:40,501 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 23:59:40,502 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 23:59:40,502 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 23:59:40,502 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 23:59:40,502 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 23:59:40,503 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 23:59:40,503 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 23:59:40,503 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 23:59:40,503 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 23:59:40,503 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 23:59:40,504 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 23:59:40,504 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 23:59:40,504 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 23:59:40,504 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 23:59:40,504 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 23:59:40,504 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 23:59:40,504 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 23:59:40,504 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 23:59:40,504 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 23:59:40,504 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 23:59:40,505 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 23:59:40,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 23:59:40,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 23:59:40,505 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 23:59:40,506 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 23:59:40,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 23:59:40,506 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 23:59:40,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 23:59:40,506 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 23:59:40,506 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 23:59:40,506 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 23:59:40,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 23:59:40,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 23:59:40,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 23:59:40,755 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-10 23:59:40,757 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-10 23:59:40,758 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/Bakery.bpl [2022-02-10 23:59:40,759 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/Bakery.bpl' [2022-02-10 23:59:40,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 23:59:40,779 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-10 23:59:40,780 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 23:59:40,780 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 23:59:40,780 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 23:59:40,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Bakery.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:59:40" (1/1) ... [2022-02-10 23:59:40,794 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Bakery.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:59:40" (1/1) ... [2022-02-10 23:59:40,799 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-10 23:59:40,800 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 23:59:40,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 23:59:40,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 23:59:40,802 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 23:59:40,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Bakery.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:59:40" (1/1) ... [2022-02-10 23:59:40,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Bakery.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:59:40" (1/1) ... [2022-02-10 23:59:40,809 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Bakery.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:59:40" (1/1) ... [2022-02-10 23:59:40,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Bakery.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:59:40" (1/1) ... [2022-02-10 23:59:40,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Bakery.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:59:40" (1/1) ... [2022-02-10 23:59:40,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Bakery.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:59:40" (1/1) ... [2022-02-10 23:59:40,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Bakery.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:59:40" (1/1) ... [2022-02-10 23:59:40,817 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 23:59:40,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 23:59:40,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 23:59:40,818 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 23:59:40,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Bakery.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:59:40" (1/1) ... [2022-02-10 23:59:40,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 23:59:40,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:59:40,845 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-10 23:59:40,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-10 23:59:40,876 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Process0 given in one single declaration [2022-02-10 23:59:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure Process0 [2022-02-10 23:59:40,877 INFO L138 BoogieDeclarations]: Found implementation of procedure Process0 [2022-02-10 23:59:40,877 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Process1 given in one single declaration [2022-02-10 23:59:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure Process1 [2022-02-10 23:59:40,877 INFO L138 BoogieDeclarations]: Found implementation of procedure Process1 [2022-02-10 23:59:40,877 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-10 23:59:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 23:59:40,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 23:59:40,878 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 23:59:40,911 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 23:59:40,913 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 23:59:41,008 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 23:59:41,022 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 23:59:41,022 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-10 23:59:41,025 INFO L202 PluginConnector]: Adding new model Bakery.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 11:59:41 BoogieIcfgContainer [2022-02-10 23:59:41,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 23:59:41,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 23:59:41,028 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 23:59:41,031 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 23:59:41,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Bakery.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:59:40" (1/2) ... [2022-02-10 23:59:41,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ccfdd69 and model type Bakery.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 11:59:41, skipping insertion in model container [2022-02-10 23:59:41,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Bakery.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 11:59:41" (2/2) ... [2022-02-10 23:59:41,033 INFO L112 eAbstractionObserver]: Analyzing ICFG Bakery.bpl [2022-02-10 23:59:41,038 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 23:59:41,038 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 23:59:41,038 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-02-10 23:59:41,039 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 23:59:41,086 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-10 23:59:41,133 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 23:59:41,139 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-10 23:59:41,140 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-02-10 23:59:41,149 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 26 transitions, 62 flow [2022-02-10 23:59:41,192 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 167 states, 164 states have (on average 2.481707317073171) internal successors, (407), 166 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:41,194 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 164 states have (on average 2.481707317073171) internal successors, (407), 166 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:41,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-02-10 23:59:41,199 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:59:41,201 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:59:41,201 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting Process0Err0ASSERT_VIOLATIONASSERT === [Process0Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2022-02-10 23:59:41,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:59:41,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1550365147, now seen corresponding path program 1 times [2022-02-10 23:59:41,212 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:59:41,213 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550457409] [2022-02-10 23:59:41,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:59:41,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:59:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:59:41,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:59:41,390 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:59:41,390 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550457409] [2022-02-10 23:59:41,392 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550457409] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:59:41,392 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:59:41,392 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-10 23:59:41,393 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209137604] [2022-02-10 23:59:41,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:59:41,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-10 23:59:41,397 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:59:41,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-10 23:59:41,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-10 23:59:41,445 INFO L87 Difference]: Start difference. First operand has 167 states, 164 states have (on average 2.481707317073171) internal successors, (407), 166 states have internal predecessors, (407), 0 states have call successors, (0), 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 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:41,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:59:41,496 INFO L93 Difference]: Finished difference Result 204 states and 488 transitions. [2022-02-10 23:59:41,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-10 23:59:41,499 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-02-10 23:59:41,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:59:41,506 INFO L225 Difference]: With dead ends: 204 [2022-02-10 23:59:41,507 INFO L226 Difference]: Without dead ends: 204 [2022-02-10 23:59:41,508 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-10 23:59:41,510 INFO L934 BasicCegarLoop]: 27 mSDtfsCounter, 21 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:59:41,511 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 48 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:59:41,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-02-10 23:59:41,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 192. [2022-02-10 23:59:41,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 190 states have (on average 2.473684210526316) internal successors, (470), 191 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:41,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 470 transitions. [2022-02-10 23:59:41,585 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 470 transitions. Word has length 7 [2022-02-10 23:59:41,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:59:41,585 INFO L470 AbstractCegarLoop]: Abstraction has 192 states and 470 transitions. [2022-02-10 23:59:41,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:41,586 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 470 transitions. [2022-02-10 23:59:41,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-02-10 23:59:41,586 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:59:41,586 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:59:41,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 23:59:41,587 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting Process1Err0ASSERT_VIOLATIONASSERT === [Process0Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2022-02-10 23:59:41,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:59:41,587 INFO L85 PathProgramCache]: Analyzing trace with hash 817311923, now seen corresponding path program 1 times [2022-02-10 23:59:41,587 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:59:41,588 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752490879] [2022-02-10 23:59:41,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:59:41,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:59:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:59:41,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:59:41,608 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:59:41,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752490879] [2022-02-10 23:59:41,608 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752490879] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:59:41,609 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:59:41,609 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-02-10 23:59:41,609 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295593228] [2022-02-10 23:59:41,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:59:41,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:59:41,610 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:59:41,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:59:41,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:59:41,611 INFO L87 Difference]: Start difference. First operand 192 states and 470 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:41,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:59:41,647 INFO L93 Difference]: Finished difference Result 216 states and 492 transitions. [2022-02-10 23:59:41,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:59:41,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-02-10 23:59:41,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:59:41,651 INFO L225 Difference]: With dead ends: 216 [2022-02-10 23:59:41,651 INFO L226 Difference]: Without dead ends: 216 [2022-02-10 23:59:41,652 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:59:41,653 INFO L934 BasicCegarLoop]: 18 mSDtfsCounter, 7 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:59:41,653 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 25 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:59:41,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-02-10 23:59:41,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 202. [2022-02-10 23:59:41,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 201 states have (on average 2.283582089552239) internal successors, (459), 201 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:41,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 459 transitions. [2022-02-10 23:59:41,666 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 459 transitions. Word has length 8 [2022-02-10 23:59:41,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:59:41,666 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 459 transitions. [2022-02-10 23:59:41,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:41,667 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 459 transitions. [2022-02-10 23:59:41,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-02-10 23:59:41,667 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:59:41,667 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:59:41,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 23:59:41,668 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting Process0Err0ASSERT_VIOLATIONASSERT === [Process0Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2022-02-10 23:59:41,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:59:41,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1654273289, now seen corresponding path program 1 times [2022-02-10 23:59:41,668 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:59:41,669 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918011051] [2022-02-10 23:59:41,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:59:41,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:59:41,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:59:41,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:59:41,744 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:59:41,744 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918011051] [2022-02-10 23:59:41,744 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918011051] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:59:41,744 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:59:41,744 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 23:59:41,745 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337568701] [2022-02-10 23:59:41,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:59:41,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 23:59:41,745 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:59:41,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 23:59:41,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-10 23:59:41,746 INFO L87 Difference]: Start difference. First operand 202 states and 459 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:41,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:59:41,817 INFO L93 Difference]: Finished difference Result 258 states and 565 transitions. [2022-02-10 23:59:41,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 23:59:41,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-02-10 23:59:41,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:59:41,819 INFO L225 Difference]: With dead ends: 258 [2022-02-10 23:59:41,819 INFO L226 Difference]: Without dead ends: 258 [2022-02-10 23:59:41,819 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-10 23:59:41,820 INFO L934 BasicCegarLoop]: 32 mSDtfsCounter, 43 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 23:59:41,821 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 69 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 23:59:41,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-02-10 23:59:41,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 240. [2022-02-10 23:59:41,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 239 states have (on average 2.2343096234309625) internal successors, (534), 239 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:41,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 534 transitions. [2022-02-10 23:59:41,833 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 534 transitions. Word has length 12 [2022-02-10 23:59:41,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:59:41,833 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 534 transitions. [2022-02-10 23:59:41,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:41,833 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 534 transitions. [2022-02-10 23:59:41,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-02-10 23:59:41,834 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:59:41,834 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:59:41,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 23:59:41,834 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting Process0Err0ASSERT_VIOLATIONASSERT === [Process0Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2022-02-10 23:59:41,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:59:41,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1415059961, now seen corresponding path program 2 times [2022-02-10 23:59:41,835 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:59:41,835 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040153221] [2022-02-10 23:59:41,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:59:41,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:59:41,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:59:41,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:59:41,895 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:59:41,895 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040153221] [2022-02-10 23:59:41,895 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040153221] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:59:41,895 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:59:41,895 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 23:59:41,895 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97040680] [2022-02-10 23:59:41,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:59:41,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 23:59:41,896 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:59:41,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 23:59:41,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-10 23:59:41,897 INFO L87 Difference]: Start difference. First operand 240 states and 534 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:41,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:59:41,962 INFO L93 Difference]: Finished difference Result 306 states and 665 transitions. [2022-02-10 23:59:41,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 23:59:41,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-02-10 23:59:41,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:59:41,964 INFO L225 Difference]: With dead ends: 306 [2022-02-10 23:59:41,964 INFO L226 Difference]: Without dead ends: 306 [2022-02-10 23:59:41,965 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-10 23:59:41,965 INFO L934 BasicCegarLoop]: 19 mSDtfsCounter, 40 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 23:59:41,966 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 55 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 23:59:41,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2022-02-10 23:59:41,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 258. [2022-02-10 23:59:41,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 257 states have (on average 2.252918287937743) internal successors, (579), 257 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:41,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 579 transitions. [2022-02-10 23:59:41,978 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 579 transitions. Word has length 12 [2022-02-10 23:59:41,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:59:41,978 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 579 transitions. [2022-02-10 23:59:41,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:41,978 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 579 transitions. [2022-02-10 23:59:41,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-02-10 23:59:41,979 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:59:41,980 INFO L515 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:59:41,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-10 23:59:41,980 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting Process1Err0ASSERT_VIOLATIONASSERT === [Process0Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2022-02-10 23:59:41,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:59:41,980 INFO L85 PathProgramCache]: Analyzing trace with hash 517702574, now seen corresponding path program 1 times [2022-02-10 23:59:41,980 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:59:41,981 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45874317] [2022-02-10 23:59:41,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:59:41,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:59:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:59:42,096 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:59:42,096 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:59:42,096 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45874317] [2022-02-10 23:59:42,097 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45874317] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:59:42,097 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:59:42,097 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 23:59:42,097 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461759628] [2022-02-10 23:59:42,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:59:42,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 23:59:42,098 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:59:42,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 23:59:42,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-10 23:59:42,098 INFO L87 Difference]: Start difference. First operand 258 states and 579 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:42,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:59:42,148 INFO L93 Difference]: Finished difference Result 202 states and 435 transitions. [2022-02-10 23:59:42,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 23:59:42,149 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-02-10 23:59:42,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:59:42,150 INFO L225 Difference]: With dead ends: 202 [2022-02-10 23:59:42,150 INFO L226 Difference]: Without dead ends: 202 [2022-02-10 23:59:42,150 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2022-02-10 23:59:42,151 INFO L934 BasicCegarLoop]: 20 mSDtfsCounter, 35 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:59:42,152 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 66 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:59:42,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-02-10 23:59:42,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 162. [2022-02-10 23:59:42,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 162 states have (on average 2.191358024691358) internal successors, (355), 161 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:42,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 355 transitions. [2022-02-10 23:59:42,158 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 355 transitions. Word has length 18 [2022-02-10 23:59:42,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:59:42,158 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 355 transitions. [2022-02-10 23:59:42,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:42,159 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 355 transitions. [2022-02-10 23:59:42,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-02-10 23:59:42,159 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:59:42,160 INFO L515 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:59:42,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-10 23:59:42,160 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting Process1Err0ASSERT_VIOLATIONASSERT === [Process0Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2022-02-10 23:59:42,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:59:42,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1203351884, now seen corresponding path program 2 times [2022-02-10 23:59:42,160 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:59:42,161 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468017457] [2022-02-10 23:59:42,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:59:42,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:59:42,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:59:42,197 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:59:42,197 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:59:42,197 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468017457] [2022-02-10 23:59:42,197 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468017457] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:59:42,197 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:59:42,198 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 23:59:42,198 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911929052] [2022-02-10 23:59:42,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:59:42,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 23:59:42,198 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:59:42,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 23:59:42,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-10 23:59:42,199 INFO L87 Difference]: Start difference. First operand 162 states and 355 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:42,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:59:42,236 INFO L93 Difference]: Finished difference Result 206 states and 435 transitions. [2022-02-10 23:59:42,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 23:59:42,237 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-02-10 23:59:42,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:59:42,239 INFO L225 Difference]: With dead ends: 206 [2022-02-10 23:59:42,239 INFO L226 Difference]: Without dead ends: 206 [2022-02-10 23:59:42,240 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-10 23:59:42,245 INFO L934 BasicCegarLoop]: 26 mSDtfsCounter, 31 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:59:42,246 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 70 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:59:42,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-02-10 23:59:42,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 160. [2022-02-10 23:59:42,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 159 states have (on average 2.150943396226415) internal successors, (342), 159 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:42,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 342 transitions. [2022-02-10 23:59:42,253 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 342 transitions. Word has length 18 [2022-02-10 23:59:42,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:59:42,253 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 342 transitions. [2022-02-10 23:59:42,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:42,253 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 342 transitions. [2022-02-10 23:59:42,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-02-10 23:59:42,254 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:59:42,254 INFO L515 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:59:42,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-10 23:59:42,255 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting Process0Err0ASSERT_VIOLATIONASSERT === [Process0Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2022-02-10 23:59:42,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:59:42,271 INFO L85 PathProgramCache]: Analyzing trace with hash 776574525, now seen corresponding path program 1 times [2022-02-10 23:59:42,271 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:59:42,271 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253744349] [2022-02-10 23:59:42,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:59:42,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:59:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:59:42,324 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:59:42,324 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:59:42,325 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253744349] [2022-02-10 23:59:42,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253744349] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:59:42,325 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:59:42,325 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 23:59:42,325 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547233195] [2022-02-10 23:59:42,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:59:42,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 23:59:42,325 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:59:42,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 23:59:42,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-10 23:59:42,326 INFO L87 Difference]: Start difference. First operand 160 states and 342 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:42,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:59:42,364 INFO L93 Difference]: Finished difference Result 132 states and 260 transitions. [2022-02-10 23:59:42,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 23:59:42,364 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-02-10 23:59:42,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:59:42,364 INFO L225 Difference]: With dead ends: 132 [2022-02-10 23:59:42,364 INFO L226 Difference]: Without dead ends: 0 [2022-02-10 23:59:42,365 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2022-02-10 23:59:42,367 INFO L934 BasicCegarLoop]: 25 mSDtfsCounter, 29 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:59:42,369 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 72 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:59:42,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-10 23:59:42,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-10 23:59:42,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:42,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-10 23:59:42,371 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2022-02-10 23:59:42,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:59:42,371 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-10 23:59:42,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:42,371 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-10 23:59:42,371 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-10 23:59:42,373 INFO L764 garLoopResultBuilder]: Registering result SAFE for location Process0Err0ASSERT_VIOLATIONASSERT (5 of 6 remaining) [2022-02-10 23:59:42,375 INFO L764 garLoopResultBuilder]: Registering result SAFE for location Process1Err0ASSERT_VIOLATIONASSERT (4 of 6 remaining) [2022-02-10 23:59:42,375 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 6 remaining) [2022-02-10 23:59:42,378 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 6 remaining) [2022-02-10 23:59:42,378 INFO L764 garLoopResultBuilder]: Registering result SAFE for location Process0Err0ASSERT_VIOLATIONASSERT (1 of 6 remaining) [2022-02-10 23:59:42,378 INFO L764 garLoopResultBuilder]: Registering result SAFE for location Process1Err0ASSERT_VIOLATIONASSERT (0 of 6 remaining) [2022-02-10 23:59:42,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-10 23:59:42,382 INFO L733 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2022-02-10 23:59:42,385 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-10 23:59:42,385 INFO L184 ceAbstractionStarter]: Computing trace abstraction results [2022-02-10 23:59:42,390 INFO L202 PluginConnector]: Adding new model Bakery.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 11:59:42 BasicIcfg [2022-02-10 23:59:42,390 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-10 23:59:42,391 INFO L158 Benchmark]: Toolchain (without parser) took 1611.82ms. Allocated memory was 205.5MB in the beginning and 271.6MB in the end (delta: 66.1MB). Free memory was 171.1MB in the beginning and 194.4MB in the end (delta: -23.3MB). Peak memory consumption was 43.2MB. Max. memory is 8.0GB. [2022-02-10 23:59:42,391 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 205.5MB. Free memory is still 172.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-10 23:59:42,392 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.86ms. Allocated memory is still 205.5MB. Free memory was 171.0MB in the beginning and 169.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-10 23:59:42,392 INFO L158 Benchmark]: Boogie Preprocessor took 14.99ms. Allocated memory is still 205.5MB. Free memory was 169.3MB in the beginning and 168.5MB in the end (delta: 885.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-10 23:59:42,392 INFO L158 Benchmark]: RCFGBuilder took 207.52ms. Allocated memory is still 205.5MB. Free memory was 168.5MB in the beginning and 159.9MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-02-10 23:59:42,393 INFO L158 Benchmark]: TraceAbstraction took 1363.58ms. Allocated memory was 205.5MB in the beginning and 271.6MB in the end (delta: 66.1MB). Free memory was 159.5MB in the beginning and 194.4MB in the end (delta: -34.9MB). Peak memory consumption was 31.7MB. Max. memory is 8.0GB. [2022-02-10 23:59:42,395 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 0.11ms. Allocated memory is still 205.5MB. Free memory is still 172.1MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.86ms. Allocated memory is still 205.5MB. Free memory was 171.0MB in the beginning and 169.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.99ms. Allocated memory is still 205.5MB. Free memory was 169.3MB in the beginning and 168.5MB in the end (delta: 885.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 207.52ms. Allocated memory is still 205.5MB. Free memory was 168.5MB in the beginning and 159.9MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 1363.58ms. Allocated memory was 205.5MB in the beginning and 271.6MB in the end (delta: 66.1MB). Free memory was 159.5MB in the beginning and 194.4MB in the end (delta: -34.9MB). Peak memory consumption was 31.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 38]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 53]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 45 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 206 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 206 mSDsluCounter, 405 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 258 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 199 IncrementalHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 167 mSDtfsCounter, 199 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=258occurred in iteration=4, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 178 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 242 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 13/13 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-02-10 23:59:42,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...