/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf -i ../../../trunk/examples/svcomp/weaver/popl20-three-array-min.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-dev-4cc0a57-m [2025-04-14 13:24:30,004 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-14 13:24:30,058 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-14 13:24:30,063 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-14 13:24:30,064 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-14 13:24:30,096 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-14 13:24:30,096 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-14 13:24:30,096 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-14 13:24:30,097 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-14 13:24:30,097 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-14 13:24:30,097 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-14 13:24:30,097 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-14 13:24:30,097 INFO L153 SettingsManager]: * Use SBE=true [2025-04-14 13:24:30,097 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-14 13:24:30,097 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-14 13:24:30,098 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-14 13:24:30,098 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-14 13:24:30,098 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-14 13:24:30,098 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-14 13:24:30,098 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-14 13:24:30,098 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-14 13:24:30,098 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-14 13:24:30,098 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-14 13:24:30,098 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-14 13:24:30,098 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-14 13:24:30,098 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-14 13:24:30,098 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-14 13:24:30,098 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 13:24:30,098 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 13:24:30,099 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 13:24:30,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 13:24:30,099 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-14 13:24:30,099 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 13:24:30,099 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 13:24:30,099 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 13:24:30,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 13:24:30,099 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-14 13:24:30,099 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-14 13:24:30,099 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-14 13:24:30,099 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-14 13:24:30,099 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-14 13:24:30,100 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-14 13:24:30,100 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-14 13:24:30,100 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-14 13:24:30,100 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-14 13:24:30,100 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-14 13:24:30,100 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-14 13:24:30,100 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-14 13:24:30,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-14 13:24:30,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-14 13:24:30,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-14 13:24:30,378 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-14 13:24:30,379 INFO L274 PluginConnector]: CDTParser initialized [2025-04-14 13:24:30,381 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-three-array-min.wvr.c [2025-04-14 13:24:31,708 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a00b923a/15ffd28e4c7c4b1186da84e689b74d4d/FLAG61ddcf7b4 [2025-04-14 13:24:31,929 INFO L389 CDTParser]: Found 1 translation units. [2025-04-14 13:24:31,930 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-min.wvr.c [2025-04-14 13:24:31,937 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a00b923a/15ffd28e4c7c4b1186da84e689b74d4d/FLAG61ddcf7b4 [2025-04-14 13:24:32,758 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a00b923a/15ffd28e4c7c4b1186da84e689b74d4d [2025-04-14 13:24:32,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-14 13:24:32,761 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-14 13:24:32,762 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-14 13:24:32,762 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-14 13:24:32,766 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-14 13:24:32,767 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 01:24:32" (1/1) ... [2025-04-14 13:24:32,768 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13f5fee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:24:32, skipping insertion in model container [2025-04-14 13:24:32,768 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 01:24:32" (1/1) ... [2025-04-14 13:24:32,783 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-14 13:24:32,933 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-min.wvr.c[2854,2867] [2025-04-14 13:24:32,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 13:24:32,958 INFO L200 MainTranslator]: Completed pre-run [2025-04-14 13:24:32,989 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-min.wvr.c[2854,2867] [2025-04-14 13:24:32,993 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 13:24:33,003 INFO L204 MainTranslator]: Completed translation [2025-04-14 13:24:33,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:24:33 WrapperNode [2025-04-14 13:24:33,003 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-14 13:24:33,005 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-14 13:24:33,005 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-14 13:24:33,005 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-14 13:24:33,009 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:24:33" (1/1) ... [2025-04-14 13:24:33,016 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:24:33" (1/1) ... [2025-04-14 13:24:33,033 INFO L138 Inliner]: procedures = 25, calls = 42, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 210 [2025-04-14 13:24:33,034 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-14 13:24:33,034 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-14 13:24:33,034 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-14 13:24:33,034 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-14 13:24:33,040 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:24:33" (1/1) ... [2025-04-14 13:24:33,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:24:33" (1/1) ... [2025-04-14 13:24:33,043 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:24:33" (1/1) ... [2025-04-14 13:24:33,043 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:24:33" (1/1) ... [2025-04-14 13:24:33,056 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:24:33" (1/1) ... [2025-04-14 13:24:33,057 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:24:33" (1/1) ... [2025-04-14 13:24:33,060 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:24:33" (1/1) ... [2025-04-14 13:24:33,064 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:24:33" (1/1) ... [2025-04-14 13:24:33,065 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:24:33" (1/1) ... [2025-04-14 13:24:33,069 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-14 13:24:33,070 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-14 13:24:33,070 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-14 13:24:33,070 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-14 13:24:33,071 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:24:33" (1/1) ... [2025-04-14 13:24:33,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 13:24:33,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 13:24:33,098 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-14 13:24:33,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-14 13:24:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-14 13:24:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-14 13:24:33,116 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-14 13:24:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-14 13:24:33,116 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-14 13:24:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-14 13:24:33,116 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-14 13:24:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-14 13:24:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-14 13:24:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-14 13:24:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-14 13:24:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-14 13:24:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-14 13:24:33,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-14 13:24:33,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-04-14 13:24:33,117 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-14 13:24:33,197 INFO L234 CfgBuilder]: Building ICFG [2025-04-14 13:24:33,199 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-14 13:24:33,577 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-14 13:24:33,577 INFO L283 CfgBuilder]: Performing block encoding [2025-04-14 13:24:33,874 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-14 13:24:33,874 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-14 13:24:33,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 01:24:33 BoogieIcfgContainer [2025-04-14 13:24:33,876 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-14 13:24:33,877 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-14 13:24:33,878 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-14 13:24:33,881 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-14 13:24:33,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.04 01:24:32" (1/3) ... [2025-04-14 13:24:33,882 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b72820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 01:24:33, skipping insertion in model container [2025-04-14 13:24:33,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:24:33" (2/3) ... [2025-04-14 13:24:33,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b72820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 01:24:33, skipping insertion in model container [2025-04-14 13:24:33,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 01:24:33" (3/3) ... [2025-04-14 13:24:33,884 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-three-array-min.wvr.c [2025-04-14 13:24:33,895 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-14 13:24:33,896 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-three-array-min.wvr.c that has 4 procedures, 33 locations, 36 edges, 1 initial locations, 6 loop locations, and 1 error locations. [2025-04-14 13:24:33,896 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-14 13:24:33,936 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-04-14 13:24:33,966 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 13:24:33,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-14 13:24:33,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 13:24:33,969 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) [2025-04-14 13:24:33,971 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 [2025-04-14 13:24:34,031 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-14 13:24:34,042 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-14 13:24:34,050 INFO L340 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@59730adb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 13:24:34,050 INFO L341 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-04-14 13:24:34,620 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 13:24:34,620 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 13:24:34,620 INFO L139 ounterexampleChecker]: Examining path program with hash 391763713, occurence #1 [2025-04-14 13:24:34,620 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 13:24:34,620 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 13:24:34,623 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 13:24:34,624 INFO L85 PathProgramCache]: Analyzing trace with hash -379903696, now seen corresponding path program 1 times [2025-04-14 13:24:34,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 13:24:34,630 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237463179] [2025-04-14 13:24:34,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 13:24:34,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 13:24:34,687 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-04-14 13:24:34,741 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-04-14 13:24:34,741 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 13:24:34,742 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:34,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 13:24:34,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 13:24:34,961 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237463179] [2025-04-14 13:24:34,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237463179] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 13:24:34,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 13:24:34,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-14 13:24:34,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428652159] [2025-04-14 13:24:34,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 13:24:34,967 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-14 13:24:34,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 13:24:34,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-14 13:24:34,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-14 13:24:34,980 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:34,981 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 13:24:34,981 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 13:24:34,981 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:35,061 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 13:24:35,062 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-14 13:24:35,062 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 13:24:35,062 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 13:24:35,062 INFO L139 ounterexampleChecker]: Examining path program with hash 391763713, occurence #2 [2025-04-14 13:24:35,062 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 13:24:35,062 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-14 13:24:35,063 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:35,063 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-14 13:24:35,063 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:35,063 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2025-04-14 13:24:35,063 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:35,063 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-04-14 13:24:35,078 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:35,078 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-04-14 13:24:35,078 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:35,078 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2025-04-14 13:24:35,078 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:35,079 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2025-04-14 13:24:35,079 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:35,079 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2025-04-14 13:24:35,079 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:35,079 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 13:24:35,079 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 13:24:35,081 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 13:24:35,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1611471815, now seen corresponding path program 1 times [2025-04-14 13:24:35,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 13:24:35,081 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959442137] [2025-04-14 13:24:35,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 13:24:35,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 13:24:35,091 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-14 13:24:35,119 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-14 13:24:35,119 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 13:24:35,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:35,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 13:24:35,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 13:24:35,288 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959442137] [2025-04-14 13:24:35,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959442137] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 13:24:35,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 13:24:35,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-14 13:24:35,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739596567] [2025-04-14 13:24:35,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 13:24:35,289 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-14 13:24:35,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 13:24:35,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-14 13:24:35,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-14 13:24:35,289 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:35,289 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 13:24:35,290 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 13:24:35,290 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 13:24:35,290 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:35,365 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 13:24:35,365 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 13:24:35,366 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-14 13:24:35,366 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 13:24:35,366 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 13:24:35,366 INFO L139 ounterexampleChecker]: Examining path program with hash 391763713, occurence #3 [2025-04-14 13:24:35,366 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 13:24:35,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-14 13:24:35,366 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:35,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-14 13:24:35,366 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:35,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-14 13:24:35,366 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:35,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-04-14 13:24:35,366 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:35,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-04-14 13:24:35,366 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:35,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-14 13:24:35,367 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:35,367 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2025-04-14 13:24:35,367 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:35,367 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2025-04-14 13:24:35,367 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:35,367 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 13:24:35,367 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 13:24:35,367 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 13:24:35,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1667159079, now seen corresponding path program 1 times [2025-04-14 13:24:35,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 13:24:35,367 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161954147] [2025-04-14 13:24:35,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 13:24:35,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 13:24:35,380 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-04-14 13:24:35,393 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-04-14 13:24:35,393 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 13:24:35,393 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:35,530 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-14 13:24:35,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 13:24:35,532 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161954147] [2025-04-14 13:24:35,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161954147] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 13:24:35,532 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971901252] [2025-04-14 13:24:35,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 13:24:35,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 13:24:35,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 13:24:35,535 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 13:24:35,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-14 13:24:35,603 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-04-14 13:24:35,643 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-04-14 13:24:35,644 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 13:24:35,644 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:35,647 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-04-14 13:24:35,650 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 13:24:35,748 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-14 13:24:35,748 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 13:24:35,811 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-14 13:24:35,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971901252] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 13:24:35,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 13:24:35,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-04-14 13:24:35,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37089509] [2025-04-14 13:24:35,812 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 13:24:35,812 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-04-14 13:24:35,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 13:24:35,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-04-14 13:24:35,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2025-04-14 13:24:35,813 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:35,813 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 13:24:35,813 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 11 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 13:24:35,813 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 13:24:35,813 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 13:24:35,813 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:35,936 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 13:24:35,936 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 13:24:35,936 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:35,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-04-14 13:24:36,136 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2025-04-14 13:24:36,137 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 13:24:36,137 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 13:24:36,137 INFO L139 ounterexampleChecker]: Examining path program with hash 391763713, occurence #4 [2025-04-14 13:24:36,137 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 13:24:36,137 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-14 13:24:36,137 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:36,137 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2025-04-14 13:24:36,137 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:36,137 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-04-14 13:24:36,137 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:36,137 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-04-14 13:24:36,137 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:36,137 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-14 13:24:36,137 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:36,138 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-04-14 13:24:36,138 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:36,138 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-04-14 13:24:36,138 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:36,138 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2025-04-14 13:24:36,138 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:36,138 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 13:24:36,138 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 13:24:36,138 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 13:24:36,138 INFO L85 PathProgramCache]: Analyzing trace with hash -130540400, now seen corresponding path program 2 times [2025-04-14 13:24:36,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 13:24:36,138 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660102254] [2025-04-14 13:24:36,138 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 13:24:36,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 13:24:36,156 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 30 statements into 2 equivalence classes. [2025-04-14 13:24:36,164 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 24 of 30 statements. [2025-04-14 13:24:36,164 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-14 13:24:36,164 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:36,229 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-04-14 13:24:36,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 13:24:36,229 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660102254] [2025-04-14 13:24:36,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660102254] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 13:24:36,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 13:24:36,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-14 13:24:36,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033718956] [2025-04-14 13:24:36,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 13:24:36,230 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-14 13:24:36,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 13:24:36,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-14 13:24:36,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-14 13:24:36,230 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:36,230 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 13:24:36,230 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 13:24:36,230 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 13:24:36,230 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 13:24:36,230 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:36,230 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:36,311 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 13:24:36,311 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 13:24:36,311 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:36,311 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:36,311 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-14 13:24:36,312 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 13:24:36,312 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 13:24:36,312 INFO L139 ounterexampleChecker]: Examining path program with hash -1992893924, occurence #1 [2025-04-14 13:24:36,312 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 13:24:36,312 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 13:24:36,312 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 13:24:36,312 INFO L85 PathProgramCache]: Analyzing trace with hash 915561257, now seen corresponding path program 1 times [2025-04-14 13:24:36,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 13:24:36,312 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307188860] [2025-04-14 13:24:36,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 13:24:36,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 13:24:36,322 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-04-14 13:24:36,332 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-04-14 13:24:36,333 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 13:24:36,333 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:36,447 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-14 13:24:36,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 13:24:36,447 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307188860] [2025-04-14 13:24:36,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307188860] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 13:24:36,447 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042312696] [2025-04-14 13:24:36,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 13:24:36,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 13:24:36,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 13:24:36,449 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 13:24:36,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-14 13:24:36,505 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-04-14 13:24:36,534 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-04-14 13:24:36,535 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 13:24:36,535 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:36,536 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-04-14 13:24:36,537 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 13:24:36,602 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-14 13:24:36,602 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 13:24:36,665 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-14 13:24:36,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042312696] provided 1 perfect and 1 imperfect interpolant sequences [2025-04-14 13:24:36,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-04-14 13:24:36,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 11 [2025-04-14 13:24:36,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091043588] [2025-04-14 13:24:36,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 13:24:36,666 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-14 13:24:36,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 13:24:36,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-14 13:24:36,666 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2025-04-14 13:24:36,666 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:36,666 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 13:24:36,666 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 13:24:36,667 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 13:24:36,667 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 13:24:36,667 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:36,667 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:36,667 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:36,896 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 13:24:36,896 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 13:24:36,896 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:36,896 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:36,897 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:36,903 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-04-14 13:24:37,097 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 13:24:37,098 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 13:24:37,098 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 13:24:37,098 INFO L139 ounterexampleChecker]: Examining path program with hash 2035000985, occurence #1 [2025-04-14 13:24:37,098 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 13:24:37,098 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 13:24:37,098 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 13:24:37,098 INFO L85 PathProgramCache]: Analyzing trace with hash 977725162, now seen corresponding path program 1 times [2025-04-14 13:24:37,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 13:24:37,098 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287087213] [2025-04-14 13:24:37,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 13:24:37,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 13:24:37,108 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-04-14 13:24:37,124 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-04-14 13:24:37,125 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 13:24:37,125 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:37,285 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-14 13:24:37,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 13:24:37,285 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287087213] [2025-04-14 13:24:37,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287087213] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 13:24:37,285 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232625747] [2025-04-14 13:24:37,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 13:24:37,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 13:24:37,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 13:24:37,288 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 13:24:37,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-04-14 13:24:37,353 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-04-14 13:24:37,385 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-04-14 13:24:37,385 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 13:24:37,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:37,388 INFO L256 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-04-14 13:24:37,389 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 13:24:37,506 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-14 13:24:37,506 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 13:24:37,587 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-14 13:24:37,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232625747] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 13:24:37,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 13:24:37,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2025-04-14 13:24:37,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663890241] [2025-04-14 13:24:37,587 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 13:24:37,588 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-04-14 13:24:37,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 13:24:37,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-04-14 13:24:37,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2025-04-14 13:24:37,588 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:37,588 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 13:24:37,589 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.294117647058823) internal successors, (73), 16 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 13:24:37,589 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 13:24:37,589 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 13:24:37,589 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:37,589 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:37,589 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:37,589 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:37,766 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 13:24:37,766 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 13:24:37,766 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:37,766 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:37,766 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:37,766 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-14 13:24:37,773 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-04-14 13:24:37,970 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 13:24:37,970 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 13:24:37,970 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 13:24:37,970 INFO L139 ounterexampleChecker]: Examining path program with hash 2035000985, occurence #2 [2025-04-14 13:24:37,970 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 13:24:37,970 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-14 13:24:37,970 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:37,971 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-14 13:24:37,971 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:37,971 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-04-14 13:24:37,971 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:37,971 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-14 13:24:37,971 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:37,971 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-04-14 13:24:37,971 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:37,971 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-04-14 13:24:37,971 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:37,971 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2025-04-14 13:24:37,971 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:37,971 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2025-04-14 13:24:37,971 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:37,971 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 41 [2025-04-14 13:24:37,971 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:37,971 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 13:24:37,971 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 13:24:37,972 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 13:24:37,972 INFO L85 PathProgramCache]: Analyzing trace with hash -2130429805, now seen corresponding path program 2 times [2025-04-14 13:24:37,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 13:24:37,972 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699783309] [2025-04-14 13:24:37,972 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 13:24:37,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 13:24:37,987 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 43 statements into 2 equivalence classes. [2025-04-14 13:24:38,010 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 43 of 43 statements. [2025-04-14 13:24:38,011 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-14 13:24:38,011 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:38,141 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-04-14 13:24:38,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 13:24:38,141 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699783309] [2025-04-14 13:24:38,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699783309] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 13:24:38,141 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808655798] [2025-04-14 13:24:38,141 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 13:24:38,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 13:24:38,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 13:24:38,143 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 13:24:38,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-04-14 13:24:38,207 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 43 statements into 2 equivalence classes. [2025-04-14 13:24:38,243 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 43 of 43 statements. [2025-04-14 13:24:38,243 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-14 13:24:38,243 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:38,245 INFO L256 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-04-14 13:24:38,247 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 13:24:38,365 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-04-14 13:24:38,365 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 13:24:38,477 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-04-14 13:24:38,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808655798] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 13:24:38,478 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 13:24:38,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2025-04-14 13:24:38,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330866300] [2025-04-14 13:24:38,478 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 13:24:38,478 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-14 13:24:38,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 13:24:38,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-14 13:24:38,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2025-04-14 13:24:38,479 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:38,479 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 13:24:38,479 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.055555555555555) internal successors, (91), 18 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 13:24:38,479 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 13:24:38,479 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 13:24:38,479 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:38,479 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:38,479 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:38,479 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-14 13:24:38,480 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:38,884 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 13:24:38,884 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 13:24:38,884 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:38,884 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:38,884 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:38,884 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-14 13:24:38,884 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-14 13:24:38,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-04-14 13:24:39,084 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 13:24:39,085 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 13:24:39,085 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 13:24:39,085 INFO L139 ounterexampleChecker]: Examining path program with hash 2035000985, occurence #3 [2025-04-14 13:24:39,085 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 13:24:39,085 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-14 13:24:39,085 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:39,085 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-14 13:24:39,085 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:39,085 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-04-14 13:24:39,085 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:39,085 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-14 13:24:39,085 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:39,085 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-04-14 13:24:39,085 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:39,085 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-04-14 13:24:39,085 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:39,086 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2025-04-14 13:24:39,086 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:39,086 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2025-04-14 13:24:39,086 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:39,086 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 49 [2025-04-14 13:24:39,086 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:39,086 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 51 [2025-04-14 13:24:39,086 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:39,086 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 13:24:39,086 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 13:24:39,086 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 13:24:39,086 INFO L85 PathProgramCache]: Analyzing trace with hash -162653395, now seen corresponding path program 3 times [2025-04-14 13:24:39,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 13:24:39,086 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924171373] [2025-04-14 13:24:39,086 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-14 13:24:39,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 13:24:39,102 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 53 statements into 3 equivalence classes. [2025-04-14 13:24:39,180 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 40 of 53 statements. [2025-04-14 13:24:39,180 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-04-14 13:24:39,180 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:39,386 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-04-14 13:24:39,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 13:24:39,386 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924171373] [2025-04-14 13:24:39,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924171373] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 13:24:39,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 13:24:39,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-04-14 13:24:39,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651358252] [2025-04-14 13:24:39,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 13:24:39,386 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-04-14 13:24:39,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 13:24:39,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-04-14 13:24:39,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-04-14 13:24:39,387 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:39,387 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 13:24:39,387 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 13:24:39,387 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 13:24:39,387 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 13:24:39,387 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:39,387 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:39,387 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:39,387 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-14 13:24:39,387 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-14 13:24:39,387 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:39,823 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 13:24:39,824 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 13:24:39,824 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:39,824 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:39,824 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:39,824 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-14 13:24:39,824 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-14 13:24:39,824 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-14 13:24:39,824 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-04-14 13:24:39,824 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 13:24:39,824 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 13:24:39,824 INFO L139 ounterexampleChecker]: Examining path program with hash 668243623, occurence #1 [2025-04-14 13:24:39,824 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 13:24:39,825 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 13:24:39,825 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 13:24:39,825 INFO L85 PathProgramCache]: Analyzing trace with hash -2091556454, now seen corresponding path program 1 times [2025-04-14 13:24:39,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 13:24:39,825 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193735907] [2025-04-14 13:24:39,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 13:24:39,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 13:24:39,835 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-04-14 13:24:39,848 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-04-14 13:24:39,848 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 13:24:39,848 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:40,028 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 11 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-04-14 13:24:40,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 13:24:40,029 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193735907] [2025-04-14 13:24:40,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193735907] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 13:24:40,029 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353991547] [2025-04-14 13:24:40,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 13:24:40,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 13:24:40,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 13:24:40,031 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 13:24:40,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-04-14 13:24:40,095 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-04-14 13:24:40,133 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-04-14 13:24:40,133 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 13:24:40,133 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:40,135 INFO L256 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-04-14 13:24:40,137 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 13:24:40,276 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-04-14 13:24:40,276 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 13:24:40,392 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-04-14 13:24:40,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353991547] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 13:24:40,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 13:24:40,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2025-04-14 13:24:40,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048592143] [2025-04-14 13:24:40,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 13:24:40,392 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-04-14 13:24:40,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 13:24:40,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-04-14 13:24:40,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2025-04-14 13:24:40,393 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:40,393 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 13:24:40,393 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.681818181818182) internal successors, (103), 21 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 13:24:40,393 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 13:24:40,393 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 13:24:40,393 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:40,393 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:40,393 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:40,393 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-14 13:24:40,393 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-14 13:24:40,394 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-14 13:24:40,394 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:40,556 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 13:24:40,556 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 13:24:40,556 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:40,556 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:40,556 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:40,556 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-14 13:24:40,556 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-14 13:24:40,556 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-14 13:24:40,556 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 13:24:40,563 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-04-14 13:24:40,757 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 13:24:40,757 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 13:24:40,757 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 13:24:40,757 INFO L139 ounterexampleChecker]: Examining path program with hash 668243623, occurence #2 [2025-04-14 13:24:40,757 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 13:24:40,757 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-14 13:24:40,757 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:40,757 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-04-14 13:24:40,757 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:40,757 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-04-14 13:24:40,757 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:40,757 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-04-14 13:24:40,757 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:40,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-04-14 13:24:40,758 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:40,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2025-04-14 13:24:40,758 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:40,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-04-14 13:24:40,758 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:40,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2025-04-14 13:24:40,758 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:40,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 60 [2025-04-14 13:24:40,758 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:40,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-04-14 13:24:40,758 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:40,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 63 [2025-04-14 13:24:40,758 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:40,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 64 [2025-04-14 13:24:40,758 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:40,758 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 13:24:40,758 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 13:24:40,758 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 13:24:40,758 INFO L85 PathProgramCache]: Analyzing trace with hash 406555089, now seen corresponding path program 2 times [2025-04-14 13:24:40,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 13:24:40,758 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488882499] [2025-04-14 13:24:40,759 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 13:24:40,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 13:24:40,770 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 66 statements into 2 equivalence classes. [2025-04-14 13:24:40,784 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 66 of 66 statements. [2025-04-14 13:24:40,784 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-14 13:24:40,785 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:40,950 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-04-14 13:24:40,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 13:24:40,950 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488882499] [2025-04-14 13:24:40,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488882499] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 13:24:40,950 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320311603] [2025-04-14 13:24:40,950 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 13:24:40,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 13:24:40,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 13:24:40,952 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 13:24:40,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-04-14 13:24:41,030 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 66 statements into 2 equivalence classes. [2025-04-14 13:24:41,070 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 66 of 66 statements. [2025-04-14 13:24:41,070 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-14 13:24:41,070 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:41,072 INFO L256 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-04-14 13:24:41,074 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 13:24:41,231 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-04-14 13:24:41,231 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 13:24:41,357 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 10 proven. 12 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-04-14 13:24:41,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320311603] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 13:24:41,358 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 13:24:41,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2025-04-14 13:24:41,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518684191] [2025-04-14 13:24:41,358 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 13:24:41,358 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-04-14 13:24:41,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 13:24:41,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-04-14 13:24:41,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2025-04-14 13:24:41,359 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:41,359 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 13:24:41,359 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.7727272727272725) internal successors, (105), 21 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 13:24:41,359 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 13:24:41,359 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 13:24:41,359 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:41,359 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:41,359 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:41,359 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-14 13:24:41,359 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-14 13:24:41,359 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-14 13:24:41,359 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 13:24:41,359 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:41,806 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 13:24:41,806 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 13:24:41,806 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:41,806 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:41,806 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:41,806 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-14 13:24:41,806 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-14 13:24:41,806 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-14 13:24:41,806 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 13:24:41,806 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-14 13:24:41,813 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-04-14 13:24:42,007 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 13:24:42,007 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 13:24:42,007 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 13:24:42,007 INFO L139 ounterexampleChecker]: Examining path program with hash 668243623, occurence #3 [2025-04-14 13:24:42,007 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 13:24:42,007 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-14 13:24:42,007 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:42,007 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-04-14 13:24:42,008 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:42,008 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-04-14 13:24:42,008 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:42,008 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-04-14 13:24:42,008 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:42,008 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-04-14 13:24:42,008 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:42,008 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2025-04-14 13:24:42,008 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:42,008 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-04-14 13:24:42,008 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:42,008 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2025-04-14 13:24:42,008 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:42,008 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 53 [2025-04-14 13:24:42,008 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:42,008 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 70 [2025-04-14 13:24:42,008 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:42,008 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 71 [2025-04-14 13:24:42,008 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:42,008 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 73 [2025-04-14 13:24:42,008 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:42,008 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 74 [2025-04-14 13:24:42,008 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:42,008 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 13:24:42,008 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 13:24:42,009 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 13:24:42,009 INFO L85 PathProgramCache]: Analyzing trace with hash -44793173, now seen corresponding path program 3 times [2025-04-14 13:24:42,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 13:24:42,009 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102213525] [2025-04-14 13:24:42,009 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-14 13:24:42,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 13:24:42,020 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 76 statements into 4 equivalence classes. [2025-04-14 13:24:42,032 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 50 of 76 statements. [2025-04-14 13:24:42,032 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-04-14 13:24:42,032 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:42,204 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2025-04-14 13:24:42,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 13:24:42,204 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102213525] [2025-04-14 13:24:42,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102213525] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 13:24:42,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 13:24:42,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-14 13:24:42,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854607585] [2025-04-14 13:24:42,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 13:24:42,205 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-14 13:24:42,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 13:24:42,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-14 13:24:42,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-14 13:24:42,205 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:42,205 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 13:24:42,205 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 13:24:42,205 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 13:24:42,205 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 13:24:42,205 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:42,205 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:42,205 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:42,205 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-14 13:24:42,205 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-14 13:24:42,205 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-14 13:24:42,205 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 13:24:42,206 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-14 13:24:42,206 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:42,386 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 13:24:42,386 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 13:24:42,386 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:42,386 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:42,386 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:42,386 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-14 13:24:42,387 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-14 13:24:42,387 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-14 13:24:42,387 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 13:24:42,387 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-14 13:24:42,387 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:42,387 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-04-14 13:24:42,387 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 13:24:42,387 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 13:24:42,387 INFO L139 ounterexampleChecker]: Examining path program with hash 370990030, occurence #1 [2025-04-14 13:24:42,387 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 13:24:42,387 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 13:24:42,387 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 13:24:42,387 INFO L85 PathProgramCache]: Analyzing trace with hash 783537406, now seen corresponding path program 4 times [2025-04-14 13:24:42,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 13:24:42,388 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403634425] [2025-04-14 13:24:42,388 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-14 13:24:42,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 13:24:42,398 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 83 statements into 2 equivalence classes. [2025-04-14 13:24:42,401 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 55 of 83 statements. [2025-04-14 13:24:42,401 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-14 13:24:42,402 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:42,459 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2025-04-14 13:24:42,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 13:24:42,459 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403634425] [2025-04-14 13:24:42,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403634425] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 13:24:42,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 13:24:42,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-04-14 13:24:42,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455055917] [2025-04-14 13:24:42,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 13:24:42,460 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-14 13:24:42,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 13:24:42,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-14 13:24:42,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-04-14 13:24:42,460 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:42,460 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 13:24:42,460 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 13:24:42,460 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 13:24:42,460 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 13:24:42,460 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:42,460 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:42,460 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:42,460 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-14 13:24:42,460 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-14 13:24:42,460 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-14 13:24:42,460 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 13:24:42,460 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-14 13:24:42,460 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:42,460 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:42,637 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 13:24:42,637 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 13:24:42,637 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:42,637 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:42,637 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:42,637 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-14 13:24:42,637 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-14 13:24:42,637 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-14 13:24:42,637 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 13:24:42,637 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-14 13:24:42,637 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:42,638 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-14 13:24:42,638 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-04-14 13:24:42,638 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 13:24:42,638 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 13:24:42,638 INFO L139 ounterexampleChecker]: Examining path program with hash -349656652, occurence #1 [2025-04-14 13:24:42,638 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 13:24:42,638 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 13:24:42,638 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 13:24:42,638 INFO L85 PathProgramCache]: Analyzing trace with hash -299327237, now seen corresponding path program 4 times [2025-04-14 13:24:42,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 13:24:42,639 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345490999] [2025-04-14 13:24:42,639 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-14 13:24:42,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 13:24:42,651 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 63 statements into 2 equivalence classes. [2025-04-14 13:24:42,855 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 63 of 63 statements. [2025-04-14 13:24:42,855 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-14 13:24:42,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:54,432 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-04-14 13:24:54,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 13:24:54,432 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345490999] [2025-04-14 13:24:54,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345490999] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 13:24:54,433 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822641786] [2025-04-14 13:24:54,433 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-14 13:24:54,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 13:24:54,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 13:24:54,434 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 13:24:54,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-04-14 13:24:54,507 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 63 statements into 2 equivalence classes. [2025-04-14 13:24:54,547 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 63 of 63 statements. [2025-04-14 13:24:54,547 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-14 13:24:54,547 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:54,549 INFO L256 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 62 conjuncts are in the unsatisfiable core [2025-04-14 13:24:54,552 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 13:24:55,080 INFO L325 Elim1Store]: treesize reduction 94, result has 55.5 percent of original size [2025-04-14 13:24:55,081 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 142 treesize of output 167 [2025-04-14 13:25:33,339 WARN L286 SmtUtils]: Spent 6.47s on a formula simplification. DAG size of input: 709 DAG size of output: 586 (called from [L 386] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2025-04-14 13:25:51,221 INFO L325 Elim1Store]: treesize reduction 680, result has 35.2 percent of original size [2025-04-14 13:25:51,222 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 10 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 104 case distinctions, treesize of input 7800 treesize of output 4097 [2025-04-14 13:31:53,041 WARN L249 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2025-04-14 13:31:53,042 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 101 [2025-04-14 13:31:53,042 WARN L310 FreeRefinementEngine]: Global settings require throwing the following exception [2025-04-14 13:31:53,049 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-04-14 13:31:53,243 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-04-14 13:31:53,249 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-04-14 13:31:53,250 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:103) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:99) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:589) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:726) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:135) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:223) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:115) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:99) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:305) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:241) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:139) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:191) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:223) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:115) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:99) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:305) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:285) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:56) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:195) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isCounterexampleFeasible(PartialOrderCegarLoop.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:427) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:315) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:239) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 69 more [2025-04-14 13:31:53,255 INFO L158 Benchmark]: Toolchain (without parser) took 440493.60ms. Allocated memory was 142.6MB in the beginning and 780.1MB in the end (delta: 637.5MB). Free memory was 101.6MB in the beginning and 424.1MB in the end (delta: -322.5MB). Peak memory consumption was 498.6MB. Max. memory is 8.0GB. [2025-04-14 13:31:53,255 INFO L158 Benchmark]: CDTParser took 0.80ms. Allocated memory is still 155.2MB. Free memory is still 87.6MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 13:31:53,255 INFO L158 Benchmark]: CACSL2BoogieTranslator took 241.49ms. Allocated memory is still 142.6MB. Free memory was 101.6MB in the beginning and 86.1MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2025-04-14 13:31:53,255 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.83ms. Allocated memory is still 142.6MB. Free memory was 86.1MB in the beginning and 83.6MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-14 13:31:53,255 INFO L158 Benchmark]: Boogie Preprocessor took 35.34ms. Allocated memory is still 142.6MB. Free memory was 83.6MB in the beginning and 81.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 13:31:53,255 INFO L158 Benchmark]: RCFGBuilder took 806.01ms. Allocated memory is still 142.6MB. Free memory was 81.9MB in the beginning and 75.6MB in the end (delta: 6.3MB). Peak memory consumption was 66.2MB. Max. memory is 8.0GB. [2025-04-14 13:31:53,256 INFO L158 Benchmark]: TraceAbstraction took 439376.76ms. Allocated memory was 142.6MB in the beginning and 780.1MB in the end (delta: 637.5MB). Free memory was 74.9MB in the beginning and 424.1MB in the end (delta: -349.2MB). Peak memory consumption was 470.2MB. Max. memory is 8.0GB. [2025-04-14 13:31:53,256 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80ms. Allocated memory is still 155.2MB. Free memory is still 87.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 241.49ms. Allocated memory is still 142.6MB. Free memory was 101.6MB in the beginning and 86.1MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.83ms. Allocated memory is still 142.6MB. Free memory was 86.1MB in the beginning and 83.6MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.34ms. Allocated memory is still 142.6MB. Free memory was 83.6MB in the beginning and 81.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 806.01ms. Allocated memory is still 142.6MB. Free memory was 81.9MB in the beginning and 75.6MB in the end (delta: 6.3MB). Peak memory consumption was 66.2MB. Max. memory is 8.0GB. * TraceAbstraction took 439376.76ms. Allocated memory was 142.6MB in the beginning and 780.1MB in the end (delta: 637.5MB). Free memory was 74.9MB in the beginning and 424.1MB in the end (delta: -349.2MB). Peak memory consumption was 470.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...