/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/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/mix017.oepc.line914.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-10-03 22:06:51,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-03 22:06:51,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-03 22:06:51,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-03 22:06:51,396 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-03 22:06:51,399 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-03 22:06:51,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-03 22:06:51,405 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-03 22:06:51,407 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-03 22:06:51,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-03 22:06:51,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-03 22:06:51,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-03 22:06:51,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-03 22:06:51,416 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-03 22:06:51,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-03 22:06:51,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-03 22:06:51,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-03 22:06:51,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-03 22:06:51,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-03 22:06:51,429 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-03 22:06:51,431 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-03 22:06:51,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-03 22:06:51,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-03 22:06:51,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-03 22:06:51,442 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-03 22:06:51,452 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-03 22:06:51,453 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-03 22:06:51,453 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-03 22:06:51,454 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-03 22:06:51,493 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-03 22:06:51,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-03 22:06:51,493 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-03 22:06:51,493 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-03 22:06:51,494 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-03 22:06:51,494 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-03 22:06:51,495 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-03 22:06:51,496 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-03 22:06:51,496 INFO L138 SettingsManager]: * Use SBE=true [2022-10-03 22:06:51,496 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-03 22:06:51,497 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-03 22:06:51,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-03 22:06:51,497 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-03 22:06:51,497 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-03 22:06:51,497 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-03 22:06:51,497 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-03 22:06:51,497 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-03 22:06:51,498 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-03 22:06:51,498 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-03 22:06:51,498 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-03 22:06:51,498 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-03 22:06:51,498 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-03 22:06:51,498 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-03 22:06:51,499 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-03 22:06:51,499 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-03 22:06:51,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 22:06:51,499 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-03 22:06:51,500 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-03 22:06:51,500 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-03 22:06:51,500 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-03 22:06:51,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-03 22:06:51,500 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-03 22:06:51,500 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-03 22:06:51,500 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-03 22:06:51,501 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-03 22:06:51,501 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-03 22:06:51,501 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-03 22:06:51,501 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-03 22:06:51,501 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-03 22:06:51,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-03 22:06:51,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-03 22:06:51,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-03 22:06:51,824 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-03 22:06:51,825 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-03 22:06:51,827 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/mix017.oepc.line914.bpl [2022-10-03 22:06:51,827 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/mix017.oepc.line914.bpl' [2022-10-03 22:06:51,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-03 22:06:51,892 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-10-03 22:06:51,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-03 22:06:51,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-03 22:06:51,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-03 22:06:51,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "mix017.oepc.line914.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:06:51" (1/1) ... [2022-10-03 22:06:51,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "mix017.oepc.line914.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:06:51" (1/1) ... [2022-10-03 22:06:51,942 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "mix017.oepc.line914.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:06:51" (1/1) ... [2022-10-03 22:06:51,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "mix017.oepc.line914.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:06:51" (1/1) ... [2022-10-03 22:06:51,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "mix017.oepc.line914.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:06:51" (1/1) ... [2022-10-03 22:06:51,972 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "mix017.oepc.line914.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:06:51" (1/1) ... [2022-10-03 22:06:51,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "mix017.oepc.line914.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:06:51" (1/1) ... [2022-10-03 22:06:51,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-03 22:06:51,984 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-03 22:06:51,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-03 22:06:51,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-03 22:06:51,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "mix017.oepc.line914.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:06:51" (1/1) ... [2022-10-03 22:06:51,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 22:06:52,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 22:06:52,024 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) [2022-10-03 22:06:52,036 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 [2022-10-03 22:06:52,069 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-10-03 22:06:52,070 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-10-03 22:06:52,070 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-10-03 22:06:52,070 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-10-03 22:06:52,070 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-10-03 22:06:52,070 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-10-03 22:06:52,070 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-10-03 22:06:52,070 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-10-03 22:06:52,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-03 22:06:52,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-03 22:06:52,074 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-03 22:06:52,236 INFO L234 CfgBuilder]: Building ICFG [2022-10-03 22:06:52,238 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-03 22:06:52,960 INFO L275 CfgBuilder]: Performing block encoding [2022-10-03 22:06:52,984 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-03 22:06:52,985 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-03 22:06:52,988 INFO L202 PluginConnector]: Adding new model mix017.oepc.line914.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 10:06:52 BoogieIcfgContainer [2022-10-03 22:06:52,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-03 22:06:52,992 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-03 22:06:52,992 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-03 22:06:52,998 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-03 22:06:52,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mix017.oepc.line914.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:06:51" (1/2) ... [2022-10-03 22:06:52,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@640fa53 and model type mix017.oepc.line914.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 10:06:52, skipping insertion in model container [2022-10-03 22:06:52,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mix017.oepc.line914.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 10:06:52" (2/2) ... [2022-10-03 22:06:53,001 INFO L112 eAbstractionObserver]: Analyzing ICFG mix017.oepc.line914.bpl [2022-10-03 22:06:53,012 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-03 22:06:53,022 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-03 22:06:53,022 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-03 22:06:53,023 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-03 22:06:53,172 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-10-03 22:06:53,242 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 22:06:53,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 22:06:53,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 22:06:53,249 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-03 22:06:53,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-10-03 22:06:53,287 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 22:06:53,303 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-03 22:06:53,312 INFO L357 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=PARTIAL_ORDER_FA, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46653f04, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 22:06:53,312 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 22:06:53,520 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 22:06:53,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 22:06:53,525 INFO L85 PathProgramCache]: Analyzing trace with hash 901450210, now seen corresponding path program 1 times [2022-10-03 22:06:53,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 22:06:53,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287060587] [2022-10-03 22:06:53,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 22:06:53,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 22:06:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 22:06:53,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 22:06:53,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 22:06:53,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287060587] [2022-10-03 22:06:53,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287060587] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 22:06:53,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 22:06:53,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-03 22:06:53,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393589094] [2022-10-03 22:06:53,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 22:06:53,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-03 22:06:53,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 22:06:54,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-03 22:06:54,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-03 22:06:54,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 22:06:54,022 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 22:06:54,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 32.25) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-03 22:06:54,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 22:06:59,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-03 22:06:59,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-03 22:06:59,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-03 22:06:59,321 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-10-03 22:06:59,324 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT was SAFE (1/5) [2022-10-03 22:06:59,334 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 22:06:59,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 22:06:59,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 22:06:59,337 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-03 22:06:59,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2022-10-03 22:06:59,343 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 22:06:59,343 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-03 22:06:59,344 INFO L357 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=PARTIAL_ORDER_FA, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46653f04, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 22:06:59,344 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 22:06:59,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-03 22:06:59,499 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-03 22:06:59,499 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/5) [2022-10-03 22:06:59,504 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 22:06:59,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 22:06:59,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 22:06:59,545 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-03 22:06:59,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2022-10-03 22:06:59,549 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 22:06:59,550 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-03 22:06:59,551 INFO L357 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=PARTIAL_ORDER_FA, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46653f04, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 22:06:59,551 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 22:06:59,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-03 22:06:59,556 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-03 22:06:59,556 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (3/5) [2022-10-03 22:06:59,565 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 22:06:59,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 22:06:59,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 22:06:59,568 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-03 22:06:59,573 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 22:06:59,573 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-03 22:06:59,574 INFO L357 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=PARTIAL_ORDER_FA, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46653f04, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 22:06:59,574 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 22:06:59,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2022-10-03 22:07:04,122 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-03 22:07:04,123 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-03 22:07:04,124 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (4/5) [2022-10-03 22:07:04,129 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 22:07:04,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 22:07:04,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 22:07:04,137 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-03 22:07:04,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2022-10-03 22:07:04,142 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 22:07:04,142 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-03 22:07:04,143 INFO L357 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=PARTIAL_ORDER_FA, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46653f04, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 22:07:04,143 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.