/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_02-simple_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 07:20:38,834 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 07:20:38,897 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-30 07:20:38,921 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 07:20:38,921 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 07:20:38,922 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 07:20:38,922 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 07:20:38,922 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 07:20:38,923 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 07:20:38,925 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 07:20:38,926 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 07:20:38,926 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 07:20:38,926 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 07:20:38,927 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 07:20:38,927 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 07:20:38,927 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 07:20:38,927 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 07:20:38,927 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 07:20:38,927 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 07:20:38,928 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 07:20:38,928 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 07:20:38,928 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 07:20:38,928 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 07:20:38,929 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 07:20:38,929 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 07:20:38,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 07:20:38,930 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 07:20:38,930 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 07:20:38,930 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 07:20:38,930 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 07:20:38,931 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 07:20:38,931 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 07:20:38,931 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 07:20:38,931 INFO L153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 07:20:39,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 07:20:39,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 07:20:39,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 07:20:39,148 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 07:20:39,149 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 07:20:39,149 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_02-simple_nr.i [2023-11-30 07:20:40,106 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 07:20:40,338 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 07:20:40,339 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_02-simple_nr.i [2023-11-30 07:20:40,350 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/503ee8027/21ff0e4092904ddbbbb042a65af23a6f/FLAG221807579 [2023-11-30 07:20:40,362 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/503ee8027/21ff0e4092904ddbbbb042a65af23a6f [2023-11-30 07:20:40,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 07:20:40,366 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 07:20:40,368 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 07:20:40,368 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 07:20:40,371 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 07:20:40,371 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 07:20:40" (1/1) ... [2023-11-30 07:20:40,372 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f12ed2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:40, skipping insertion in model container [2023-11-30 07:20:40,373 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 07:20:40" (1/1) ... [2023-11-30 07:20:40,420 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 07:20:40,746 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 07:20:40,757 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 07:20:40,790 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 07:20:40,835 INFO L206 MainTranslator]: Completed translation [2023-11-30 07:20:40,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:40 WrapperNode [2023-11-30 07:20:40,836 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 07:20:40,837 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 07:20:40,837 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 07:20:40,837 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 07:20:40,842 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:40" (1/1) ... [2023-11-30 07:20:40,854 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:40" (1/1) ... [2023-11-30 07:20:40,867 INFO L138 Inliner]: procedures = 263, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 45 [2023-11-30 07:20:40,868 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 07:20:40,868 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 07:20:40,868 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 07:20:40,868 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 07:20:40,874 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:40" (1/1) ... [2023-11-30 07:20:40,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:40" (1/1) ... [2023-11-30 07:20:40,876 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:40" (1/1) ... [2023-11-30 07:20:40,877 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:40" (1/1) ... [2023-11-30 07:20:40,880 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:40" (1/1) ... [2023-11-30 07:20:40,881 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:40" (1/1) ... [2023-11-30 07:20:40,882 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:40" (1/1) ... [2023-11-30 07:20:40,882 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:40" (1/1) ... [2023-11-30 07:20:40,884 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 07:20:40,884 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 07:20:40,884 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 07:20:40,884 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 07:20:40,885 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:40" (1/1) ... [2023-11-30 07:20:40,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 07:20:40,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:20:40,909 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) [2023-11-30 07:20:40,914 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 [2023-11-30 07:20:40,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 07:20:40,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 07:20:40,929 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-30 07:20:40,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 07:20:40,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 07:20:40,929 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-30 07:20:40,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 07:20:40,929 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-30 07:20:40,929 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-30 07:20:40,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 07:20:40,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 07:20:40,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 07:20:40,930 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-30 07:20:41,063 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 07:20:41,064 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 07:20:41,202 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 07:20:41,215 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 07:20:41,216 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-30 07:20:41,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 07:20:41 BoogieIcfgContainer [2023-11-30 07:20:41,217 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 07:20:41,218 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 07:20:41,218 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 07:20:41,220 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 07:20:41,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 07:20:40" (1/3) ... [2023-11-30 07:20:41,222 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7692e15c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 07:20:41, skipping insertion in model container [2023-11-30 07:20:41,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:40" (2/3) ... [2023-11-30 07:20:41,222 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7692e15c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 07:20:41, skipping insertion in model container [2023-11-30 07:20:41,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 07:20:41" (3/3) ... [2023-11-30 07:20:41,223 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_02-simple_nr.i [2023-11-30 07:20:41,235 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 07:20:41,235 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-30 07:20:41,248 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 07:20:41,276 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-30 07:20:41,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 60 transitions, 127 flow [2023-11-30 07:20:41,317 INFO L124 PetriNetUnfolderBase]: 0/59 cut-off events. [2023-11-30 07:20:41,317 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-30 07:20:41,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 59 events. 0/59 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-11-30 07:20:41,319 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 60 transitions, 127 flow [2023-11-30 07:20:41,321 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 51 transitions, 105 flow [2023-11-30 07:20:41,328 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 07:20:41,332 INFO L362 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@68998984, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 07:20:41,332 INFO L363 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-30 07:20:41,339 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 07:20:41,339 INFO L124 PetriNetUnfolderBase]: 0/33 cut-off events. [2023-11-30 07:20:41,339 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 07:20:41,339 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:20:41,340 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:20:41,340 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:20:41,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:20:41,343 INFO L85 PathProgramCache]: Analyzing trace with hash -45046302, now seen corresponding path program 1 times [2023-11-30 07:20:41,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:20:41,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543826679] [2023-11-30 07:20:41,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:20:41,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:20:41,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:20:41,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:20:41,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:20:41,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543826679] [2023-11-30 07:20:41,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543826679] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:20:41,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:20:41,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 07:20:41,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719145778] [2023-11-30 07:20:41,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:20:41,580 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 07:20:41,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:20:41,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 07:20:41,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 07:20:41,599 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 60 [2023-11-30 07:20:41,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 51 transitions, 105 flow. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:41,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:20:41,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 60 [2023-11-30 07:20:41,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:20:41,673 INFO L124 PetriNetUnfolderBase]: 29/130 cut-off events. [2023-11-30 07:20:41,673 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-30 07:20:41,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 130 events. 29/130 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 404 event pairs, 15 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 175. Up to 49 conditions per place. [2023-11-30 07:20:41,677 INFO L140 encePairwiseOnDemand]: 53/60 looper letters, 17 selfloop transitions, 3 changer transitions 4/59 dead transitions. [2023-11-30 07:20:41,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 59 transitions, 169 flow [2023-11-30 07:20:41,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 07:20:41,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 07:20:41,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 157 transitions. [2023-11-30 07:20:41,686 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8722222222222222 [2023-11-30 07:20:41,686 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 157 transitions. [2023-11-30 07:20:41,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 157 transitions. [2023-11-30 07:20:41,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:20:41,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 157 transitions. [2023-11-30 07:20:41,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:41,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:41,697 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:41,699 INFO L307 CegarLoopForPetriNet]: 55 programPoint places, 2 predicate places. [2023-11-30 07:20:41,699 INFO L500 AbstractCegarLoop]: Abstraction has has 57 places, 59 transitions, 169 flow [2023-11-30 07:20:41,700 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:41,700 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:20:41,700 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:20:41,700 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 07:20:41,701 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:20:41,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:20:41,701 INFO L85 PathProgramCache]: Analyzing trace with hash -2038667585, now seen corresponding path program 1 times [2023-11-30 07:20:41,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:20:41,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430686557] [2023-11-30 07:20:41,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:20:41,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:20:41,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:20:41,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:20:41,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:20:41,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430686557] [2023-11-30 07:20:41,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430686557] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:20:41,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:20:41,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:20:41,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010093820] [2023-11-30 07:20:41,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:20:41,826 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 07:20:41,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:20:41,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 07:20:41,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 07:20:41,828 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 60 [2023-11-30 07:20:41,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 59 transitions, 169 flow. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:41,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:20:41,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 60 [2023-11-30 07:20:41,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:20:41,848 INFO L124 PetriNetUnfolderBase]: 1/65 cut-off events. [2023-11-30 07:20:41,848 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-11-30 07:20:41,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 65 events. 1/65 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 62 event pairs, 0 based on Foata normal form. 8/69 useless extension candidates. Maximal degree in co-relation 70. Up to 19 conditions per place. [2023-11-30 07:20:41,849 INFO L140 encePairwiseOnDemand]: 56/60 looper letters, 7 selfloop transitions, 6 changer transitions 4/59 dead transitions. [2023-11-30 07:20:41,849 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 59 transitions, 195 flow [2023-11-30 07:20:41,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 07:20:41,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 07:20:41,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 157 transitions. [2023-11-30 07:20:41,850 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8722222222222222 [2023-11-30 07:20:41,850 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 157 transitions. [2023-11-30 07:20:41,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 157 transitions. [2023-11-30 07:20:41,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:20:41,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 157 transitions. [2023-11-30 07:20:41,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:41,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:41,852 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:41,852 INFO L307 CegarLoopForPetriNet]: 55 programPoint places, 4 predicate places. [2023-11-30 07:20:41,852 INFO L500 AbstractCegarLoop]: Abstraction has has 59 places, 59 transitions, 195 flow [2023-11-30 07:20:41,853 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:41,853 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:20:41,853 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:20:41,853 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 07:20:41,853 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:20:41,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:20:41,854 INFO L85 PathProgramCache]: Analyzing trace with hash 383036729, now seen corresponding path program 1 times [2023-11-30 07:20:41,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:20:41,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490178984] [2023-11-30 07:20:41,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:20:41,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:20:41,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:20:41,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:20:41,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:20:41,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490178984] [2023-11-30 07:20:41,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490178984] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:20:41,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:20:41,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:20:41,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799848080] [2023-11-30 07:20:41,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:20:41,907 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:20:41,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:20:41,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:20:41,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:20:41,908 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 60 [2023-11-30 07:20:41,909 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 59 transitions, 195 flow. Second operand has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:41,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:20:41,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 60 [2023-11-30 07:20:41,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:20:41,947 INFO L124 PetriNetUnfolderBase]: 1/63 cut-off events. [2023-11-30 07:20:41,947 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-11-30 07:20:41,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 63 events. 1/63 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 88. Up to 17 conditions per place. [2023-11-30 07:20:41,947 INFO L140 encePairwiseOnDemand]: 55/60 looper letters, 15 selfloop transitions, 3 changer transitions 4/57 dead transitions. [2023-11-30 07:20:41,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 57 transitions, 231 flow [2023-11-30 07:20:41,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 07:20:41,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 07:20:41,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 196 transitions. [2023-11-30 07:20:41,949 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8166666666666667 [2023-11-30 07:20:41,949 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 196 transitions. [2023-11-30 07:20:41,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 196 transitions. [2023-11-30 07:20:41,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:20:41,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 196 transitions. [2023-11-30 07:20:41,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:41,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 60.0) internal successors, (300), 5 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:41,951 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 60.0) internal successors, (300), 5 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:41,951 INFO L307 CegarLoopForPetriNet]: 55 programPoint places, 5 predicate places. [2023-11-30 07:20:41,951 INFO L500 AbstractCegarLoop]: Abstraction has has 60 places, 57 transitions, 231 flow [2023-11-30 07:20:41,952 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:41,952 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:20:41,952 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:20:41,952 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 07:20:41,952 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:20:41,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:20:41,953 INFO L85 PathProgramCache]: Analyzing trace with hash -570068726, now seen corresponding path program 1 times [2023-11-30 07:20:41,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:20:41,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752730926] [2023-11-30 07:20:41,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:20:41,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:20:41,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:20:42,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:20:42,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:20:42,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752730926] [2023-11-30 07:20:42,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752730926] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:20:42,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:20:42,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:20:42,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36672088] [2023-11-30 07:20:42,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:20:42,002 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:20:42,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:20:42,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:20:42,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:20:42,003 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 60 [2023-11-30 07:20:42,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 57 transitions, 231 flow. Second operand has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:42,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:20:42,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 60 [2023-11-30 07:20:42,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:20:42,033 INFO L124 PetriNetUnfolderBase]: 1/61 cut-off events. [2023-11-30 07:20:42,033 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2023-11-30 07:20:42,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 61 events. 1/61 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 102. Up to 15 conditions per place. [2023-11-30 07:20:42,033 INFO L140 encePairwiseOnDemand]: 55/60 looper letters, 0 selfloop transitions, 0 changer transitions 57/57 dead transitions. [2023-11-30 07:20:42,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 57 transitions, 279 flow [2023-11-30 07:20:42,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 07:20:42,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 07:20:42,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 196 transitions. [2023-11-30 07:20:42,035 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8166666666666667 [2023-11-30 07:20:42,035 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 196 transitions. [2023-11-30 07:20:42,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 196 transitions. [2023-11-30 07:20:42,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:20:42,035 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 196 transitions. [2023-11-30 07:20:42,036 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:42,036 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 60.0) internal successors, (300), 5 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:42,036 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 60.0) internal successors, (300), 5 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:42,037 INFO L307 CegarLoopForPetriNet]: 55 programPoint places, 6 predicate places. [2023-11-30 07:20:42,037 INFO L500 AbstractCegarLoop]: Abstraction has has 61 places, 57 transitions, 279 flow [2023-11-30 07:20:42,037 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:42,041 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/04-mutex_02-simple_nr.i_BEv2_AllErrorsAtOnce [2023-11-30 07:20:42,053 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2023-11-30 07:20:42,054 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2023-11-30 07:20:42,054 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-11-30 07:20:42,054 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2023-11-30 07:20:42,054 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2023-11-30 07:20:42,054 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2023-11-30 07:20:42,055 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2023-11-30 07:20:42,055 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 07:20:42,055 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-30 07:20:42,059 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 07:20:42,059 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 07:20:42,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 07:20:42 BasicIcfg [2023-11-30 07:20:42,064 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 07:20:42,064 INFO L158 Benchmark]: Toolchain (without parser) took 1698.45ms. Allocated memory is still 589.3MB. Free memory was 538.8MB in the beginning and 449.7MB in the end (delta: 89.1MB). Peak memory consumption was 89.8MB. Max. memory is 16.0GB. [2023-11-30 07:20:42,064 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 381.7MB. Free memory is still 328.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 07:20:42,065 INFO L158 Benchmark]: CACSL2BoogieTranslator took 468.49ms. Allocated memory is still 589.3MB. Free memory was 538.5MB in the beginning and 511.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-11-30 07:20:42,065 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.08ms. Allocated memory is still 589.3MB. Free memory was 511.2MB in the beginning and 508.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 07:20:42,065 INFO L158 Benchmark]: Boogie Preprocessor took 15.38ms. Allocated memory is still 589.3MB. Free memory was 508.8MB in the beginning and 507.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 07:20:42,066 INFO L158 Benchmark]: RCFGBuilder took 332.72ms. Allocated memory is still 589.3MB. Free memory was 507.4MB in the beginning and 493.8MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-11-30 07:20:42,066 INFO L158 Benchmark]: TraceAbstraction took 845.26ms. Allocated memory is still 589.3MB. Free memory was 493.0MB in the beginning and 449.7MB in the end (delta: 43.3MB). Peak memory consumption was 43.6MB. Max. memory is 16.0GB. [2023-11-30 07:20:42,068 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 381.7MB. Free memory is still 328.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 468.49ms. Allocated memory is still 589.3MB. Free memory was 538.5MB in the beginning and 511.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 31.08ms. Allocated memory is still 589.3MB. Free memory was 511.2MB in the beginning and 508.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 15.38ms. Allocated memory is still 589.3MB. Free memory was 508.8MB in the beginning and 507.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 332.72ms. Allocated memory is still 589.3MB. Free memory was 507.4MB in the beginning and 493.8MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 845.26ms. Allocated memory is still 589.3MB. Free memory was 493.0MB in the beginning and 449.7MB in the end (delta: 43.3MB). Peak memory consumption was 43.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 930]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 930]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 922]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 922]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 75 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 107 IncrementalHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 13 mSDtfsCounter, 107 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=279occurred in iteration=4, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 148 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 144 ConstructedInterpolants, 0 QuantifiedInterpolants, 352 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 07:20:42,090 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...