/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-more-buffer-mult2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-dev-4cc0a57-m [2025-04-14 12:59:05,060 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-14 12:59:05,106 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 12:59:05,111 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-14 12:59:05,112 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-14 12:59:05,130 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-14 12:59:05,130 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-14 12:59:05,130 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-14 12:59:05,130 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-14 12:59:05,130 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-14 12:59:05,131 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-14 12:59:05,131 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-14 12:59:05,131 INFO L153 SettingsManager]: * Use SBE=true [2025-04-14 12:59:05,131 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-14 12:59:05,131 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-14 12:59:05,131 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-14 12:59:05,131 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-14 12:59:05,131 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-14 12:59:05,131 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-14 12:59:05,131 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-14 12:59:05,131 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-14 12:59:05,131 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-14 12:59:05,131 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-14 12:59:05,131 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-14 12:59:05,132 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-14 12:59:05,132 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-14 12:59:05,132 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-14 12:59:05,132 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 12:59:05,133 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 12:59:05,133 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 12:59:05,133 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 12:59:05,133 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-14 12:59:05,133 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 12:59:05,133 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 12:59:05,133 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 12:59:05,133 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 12:59:05,134 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-14 12:59:05,134 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-14 12:59:05,134 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-14 12:59:05,134 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-14 12:59:05,134 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-14 12:59:05,134 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-14 12:59:05,134 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-14 12:59:05,134 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-14 12:59:05,134 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-14 12:59:05,134 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-14 12:59:05,134 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-14 12:59:05,134 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-14 12:59:05,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-14 12:59:05,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-14 12:59:05,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-14 12:59:05,348 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-14 12:59:05,348 INFO L274 PluginConnector]: CDTParser initialized [2025-04-14 12:59:05,349 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-buffer-mult2.wvr.c [2025-04-14 12:59:06,654 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93fefbbe5/03d61d41c0d44a6fb465c3032fa556e9/FLAG58f7b8921 [2025-04-14 12:59:06,828 INFO L389 CDTParser]: Found 1 translation units. [2025-04-14 12:59:06,828 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-mult2.wvr.c [2025-04-14 12:59:06,846 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93fefbbe5/03d61d41c0d44a6fb465c3032fa556e9/FLAG58f7b8921 [2025-04-14 12:59:08,754 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93fefbbe5/03d61d41c0d44a6fb465c3032fa556e9 [2025-04-14 12:59:08,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-14 12:59:08,756 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-14 12:59:08,757 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-14 12:59:08,757 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-14 12:59:08,760 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-14 12:59:08,760 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 12:59:08" (1/1) ... [2025-04-14 12:59:08,761 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31959a0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:59:08, skipping insertion in model container [2025-04-14 12:59:08,761 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 12:59:08" (1/1) ... [2025-04-14 12:59:08,776 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-14 12:59:08,954 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-more-buffer-mult2.wvr.c[4151,4164] [2025-04-14 12:59:08,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 12:59:08,976 INFO L200 MainTranslator]: Completed pre-run [2025-04-14 12:59:09,015 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-more-buffer-mult2.wvr.c[4151,4164] [2025-04-14 12:59:09,020 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 12:59:09,036 INFO L204 MainTranslator]: Completed translation [2025-04-14 12:59:09,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:59:09 WrapperNode [2025-04-14 12:59:09,038 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-14 12:59:09,038 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-14 12:59:09,038 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-14 12:59:09,039 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-14 12:59:09,043 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:59:09" (1/1) ... [2025-04-14 12:59:09,051 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:59:09" (1/1) ... [2025-04-14 12:59:09,077 INFO L138 Inliner]: procedures = 26, calls = 56, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 274 [2025-04-14 12:59:09,077 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-14 12:59:09,079 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-14 12:59:09,079 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-14 12:59:09,079 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-14 12:59:09,084 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:59:09" (1/1) ... [2025-04-14 12:59:09,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:59:09" (1/1) ... [2025-04-14 12:59:09,086 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:59:09" (1/1) ... [2025-04-14 12:59:09,087 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:59:09" (1/1) ... [2025-04-14 12:59:09,091 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:59:09" (1/1) ... [2025-04-14 12:59:09,092 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:59:09" (1/1) ... [2025-04-14 12:59:09,096 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:59:09" (1/1) ... [2025-04-14 12:59:09,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:59:09" (1/1) ... [2025-04-14 12:59:09,097 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:59:09" (1/1) ... [2025-04-14 12:59:09,106 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-14 12:59:09,107 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-14 12:59:09,107 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-14 12:59:09,107 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-14 12:59:09,111 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:59:09" (1/1) ... [2025-04-14 12:59:09,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 12:59:09,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 12:59:09,135 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 12:59:09,137 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 12:59:09,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-14 12:59:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-14 12:59:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-04-14 12:59:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-14 12:59:09,154 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-14 12:59:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-14 12:59:09,154 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-14 12:59:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-14 12:59:09,154 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-14 12:59:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-04-14 12:59:09,154 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-04-14 12:59:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-14 12:59:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-14 12:59:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-14 12:59:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-14 12:59:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-14 12:59:09,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-14 12:59:09,155 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 12:59:09,248 INFO L234 CfgBuilder]: Building ICFG [2025-04-14 12:59:09,249 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-14 12:59:09,519 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-14 12:59:09,520 INFO L283 CfgBuilder]: Performing block encoding [2025-04-14 12:59:09,741 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-14 12:59:09,741 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-14 12:59:09,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 12:59:09 BoogieIcfgContainer [2025-04-14 12:59:09,742 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-14 12:59:09,743 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-14 12:59:09,743 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-14 12:59:09,746 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-14 12:59:09,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.04 12:59:08" (1/3) ... [2025-04-14 12:59:09,746 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e874497 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 12:59:09, skipping insertion in model container [2025-04-14 12:59:09,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:59:09" (2/3) ... [2025-04-14 12:59:09,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e874497 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 12:59:09, skipping insertion in model container [2025-04-14 12:59:09,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 12:59:09" (3/3) ... [2025-04-14 12:59:09,747 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-mult2.wvr.c [2025-04-14 12:59:09,757 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-14 12:59:09,758 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-more-buffer-mult2.wvr.c that has 5 procedures, 43 locations, 44 edges, 1 initial locations, 6 loop locations, and 1 error locations. [2025-04-14 12:59:09,758 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-14 12:59:09,803 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-04-14 12:59:09,834 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 12:59:09,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-14 12:59:09,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 12:59:09,838 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 12:59:09,839 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 12:59:09,900 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-14 12:59:09,914 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-14 12:59:09,919 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;@6a23c6da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 12:59:09,919 INFO L341 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-04-14 12:59:10,771 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 2 more)] === [2025-04-14 12:59:10,771 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 12:59:10,771 INFO L139 ounterexampleChecker]: Examining path program with hash 416820362, occurence #1 [2025-04-14 12:59:10,771 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 12:59:10,771 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 12:59:10,775 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 12:59:10,776 INFO L85 PathProgramCache]: Analyzing trace with hash 2082115117, now seen corresponding path program 1 times [2025-04-14 12:59:10,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 12:59:10,781 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650106534] [2025-04-14 12:59:10,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 12:59:10,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 12:59:10,841 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-04-14 12:59:11,006 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-04-14 12:59:11,006 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 12:59:11,006 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:59:11,504 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 12:59:11,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 12:59:11,505 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650106534] [2025-04-14 12:59:11,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650106534] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 12:59:11,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 12:59:11,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-14 12:59:11,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380549353] [2025-04-14 12:59:11,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 12:59:11,510 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-14 12:59:11,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 12:59:11,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-14 12:59:11,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-14 12:59:11,525 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 12:59:11,526 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 12:59:11,526 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 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 12:59:11,526 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 12:59:11,631 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:11,632 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-14 12:59:11,632 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 2 more)] === [2025-04-14 12:59:11,632 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 12:59:11,632 INFO L139 ounterexampleChecker]: Examining path program with hash 416820362, occurence #2 [2025-04-14 12:59:11,632 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 12:59:11,632 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-14 12:59:11,644 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 12:59:11,645 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-04-14 12:59:11,645 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 12:59:11,645 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2025-04-14 12:59:11,646 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 12:59:11,646 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-04-14 12:59:11,646 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 12:59:11,646 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-04-14 12:59:11,731 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 12:59:11,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1767166949, now seen corresponding path program 1 times [2025-04-14 12:59:11,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-14 12:59:11,732 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027842824] [2025-04-14 12:59:11,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 12:59:11,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 12:59:11,747 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-04-14 12:59:11,781 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-04-14 12:59:11,781 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 12:59:11,781 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:59:11,967 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 12:59:11,968 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-04-14 12:59:11,968 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027842824] [2025-04-14 12:59:11,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027842824] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 12:59:11,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 12:59:11,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 12:59:11,969 INFO L172 ounterexampleChecker]: Successfully proved commutativity at non-minimality point 61. Constructing proof automaton... [2025-04-14 12:59:11,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 12:59:11,970 INFO L311 artialOrderCegarLoop]: Commutativity proof succeeded, skipping feasibility check. [2025-04-14 12:59:11,970 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-14 12:59:11,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SMTINTERPOL [2025-04-14 12:59:11,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-14 12:59:11,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-14 12:59:11,970 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 12:59:11,972 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 12:59:11,973 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 12:59:11,973 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:11,973 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 12:59:12,053 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:12,054 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:12,054 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-14 12:59:12,054 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 2 more)] === [2025-04-14 12:59:12,054 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 12:59:12,054 INFO L139 ounterexampleChecker]: Examining path program with hash 416820362, occurence #3 [2025-04-14 12:59:12,054 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 12:59:12,054 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-04-14 12:59:12,054 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 12:59:12,054 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2025-04-14 12:59:12,055 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 12:59:12,055 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-14 12:59:12,055 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 12:59:12,055 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-04-14 12:59:12,055 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 12:59:12,055 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 62 [2025-04-14 12:59:12,106 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 12:59:12,106 INFO L85 PathProgramCache]: Analyzing trace with hash -706518243, now seen corresponding path program 1 times [2025-04-14 12:59:12,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-14 12:59:12,106 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070263995] [2025-04-14 12:59:12,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 12:59:12,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 12:59:12,117 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-04-14 12:59:12,147 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-04-14 12:59:12,147 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 12:59:12,147 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:59:12,426 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 12:59:12,426 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-04-14 12:59:12,426 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070263995] [2025-04-14 12:59:12,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070263995] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 12:59:12,426 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [945852653] [2025-04-14 12:59:12,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 12:59:12,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 12:59:12,444 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-04-14 12:59:12,482 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-04-14 12:59:12,482 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 12:59:12,482 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:59:12,489 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-04-14 12:59:12,495 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 12:59:12,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 12:59:12,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [945852653] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 12:59:12,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-04-14 12:59:12,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2025-04-14 12:59:12,597 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-04-14 12:59:12,597 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 70 [2025-04-14 12:59:12,664 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 12:59:12,664 INFO L85 PathProgramCache]: Analyzing trace with hash -291352258, now seen corresponding path program 1 times [2025-04-14 12:59:12,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-14 12:59:12,664 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712161899] [2025-04-14 12:59:12,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 12:59:12,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 12:59:12,674 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-04-14 12:59:12,696 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-04-14 12:59:12,696 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 12:59:12,696 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:59:12,977 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 12:59:12,977 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-04-14 12:59:12,977 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712161899] [2025-04-14 12:59:12,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712161899] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 12:59:12,977 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [476340810] [2025-04-14 12:59:12,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 12:59:12,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 12:59:12,992 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-04-14 12:59:13,017 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-04-14 12:59:13,017 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 12:59:13,017 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:59:13,019 INFO L256 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-04-14 12:59:13,023 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 12:59:13,111 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 12:59:13,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [476340810] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 12:59:13,112 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-04-14 12:59:13,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2025-04-14 12:59:13,112 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-04-14 12:59:13,112 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 90 [2025-04-14 12:59:13,112 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 12:59:13,112 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 12:59:13,112 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 12:59:13,112 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 12:59:13,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1852439889, now seen corresponding path program 1 times [2025-04-14 12:59:13,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 12:59:13,113 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290993793] [2025-04-14 12:59:13,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 12:59:13,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 12:59:13,124 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-04-14 12:59:13,152 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-04-14 12:59:13,152 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 12:59:13,152 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:59:13,445 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 12:59:13,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 12:59:13,446 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290993793] [2025-04-14 12:59:13,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290993793] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 12:59:13,446 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248149098] [2025-04-14 12:59:13,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 12:59:13,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 12:59:13,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 12:59:13,449 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 12:59:13,450 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 12:59:13,515 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-04-14 12:59:13,569 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-04-14 12:59:13,569 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 12:59:13,569 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:59:13,572 INFO L256 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-04-14 12:59:13,574 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 12:59:13,655 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 12:59:13,655 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 12:59:13,760 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 12:59:13,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248149098] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 12:59:13,760 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 12:59:13,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 13 [2025-04-14 12:59:13,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905774029] [2025-04-14 12:59:13,761 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 12:59:13,761 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-04-14 12:59:13,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 12:59:13,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-04-14 12:59:13,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2025-04-14 12:59:13,762 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 12:59:13,762 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 12:59:13,762 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.5) internal successors, (105), 13 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 12:59:13,762 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:13,762 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:13,762 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 12:59:13,977 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:13,977 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:13,977 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 12:59:13,984 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-04-14 12:59:14,177 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3,SelfDestructingSolverStorable2,SelfDestructingSolverStorable6,SelfDestructingSolverStorable5 [2025-04-14 12:59:14,178 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 2 more)] === [2025-04-14 12:59:14,178 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 12:59:14,178 INFO L139 ounterexampleChecker]: Examining path program with hash 416820362, occurence #4 [2025-04-14 12:59:14,178 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 12:59:14,178 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-04-14 12:59:14,178 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 12:59:14,178 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-04-14 12:59:14,179 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 12:59:14,179 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-04-14 12:59:14,179 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 12:59:14,179 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-04-14 12:59:14,179 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 12:59:14,179 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 63 [2025-04-14 12:59:14,234 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 12:59:14,234 INFO L85 PathProgramCache]: Analyzing trace with hash 931621228, now seen corresponding path program 1 times [2025-04-14 12:59:14,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-14 12:59:14,234 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135424693] [2025-04-14 12:59:14,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 12:59:14,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 12:59:14,245 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-04-14 12:59:14,267 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-14 12:59:14,268 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 12:59:14,268 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:59:14,485 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 12:59:14,485 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-04-14 12:59:14,485 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135424693] [2025-04-14 12:59:14,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135424693] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 12:59:14,485 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1059121531] [2025-04-14 12:59:14,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 12:59:14,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 12:59:14,494 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-04-14 12:59:14,514 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-14 12:59:14,514 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 12:59:14,514 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:59:14,516 INFO L256 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-04-14 12:59:14,517 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 12:59:14,668 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 12:59:14,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1059121531] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 12:59:14,669 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-04-14 12:59:14,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2025-04-14 12:59:14,669 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-04-14 12:59:14,669 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 71 [2025-04-14 12:59:14,724 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 12:59:14,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1315176077, now seen corresponding path program 1 times [2025-04-14 12:59:14,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-14 12:59:14,725 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230448478] [2025-04-14 12:59:14,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 12:59:14,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 12:59:14,733 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-04-14 12:59:14,749 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-04-14 12:59:14,749 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 12:59:14,749 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:59:14,952 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 12:59:14,952 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-04-14 12:59:14,952 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230448478] [2025-04-14 12:59:14,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230448478] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 12:59:14,952 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1408388363] [2025-04-14 12:59:14,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 12:59:14,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 12:59:14,962 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-04-14 12:59:14,999 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-04-14 12:59:15,000 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 12:59:15,000 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:59:15,001 INFO L256 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-04-14 12:59:15,005 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 12:59:15,143 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 12:59:15,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1408388363] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 12:59:15,144 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-04-14 12:59:15,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2025-04-14 12:59:15,144 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-04-14 12:59:15,144 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 91 [2025-04-14 12:59:15,144 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 12:59:15,144 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 12:59:15,144 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 12:59:15,144 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 12:59:15,144 INFO L85 PathProgramCache]: Analyzing trace with hash -223120570, now seen corresponding path program 2 times [2025-04-14 12:59:15,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 12:59:15,145 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889992536] [2025-04-14 12:59:15,145 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 12:59:15,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 12:59:15,156 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 95 statements into 2 equivalence classes. [2025-04-14 12:59:15,178 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 92 of 95 statements. [2025-04-14 12:59:15,178 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-14 12:59:15,178 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:59:15,411 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-04-14 12:59:15,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 12:59:15,412 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889992536] [2025-04-14 12:59:15,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889992536] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 12:59:15,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 12:59:15,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 12:59:15,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813197677] [2025-04-14 12:59:15,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 12:59:15,413 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-14 12:59:15,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 12:59:15,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-14 12:59:15,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-04-14 12:59:15,414 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 12:59:15,414 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 12:59:15,414 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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 12:59:15,414 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:15,414 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:15,414 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 12:59:15,414 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 12:59:15,556 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:15,556 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:15,556 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 12:59:15,556 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 12:59:15,556 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,SelfDestructingSolverStorable7,SelfDestructingSolverStorable10,SelfDestructingSolverStorable11,SelfDestructingSolverStorable9 [2025-04-14 12:59:15,556 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 2 more)] === [2025-04-14 12:59:15,556 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 12:59:15,556 INFO L139 ounterexampleChecker]: Examining path program with hash -1395058860, occurence #1 [2025-04-14 12:59:15,557 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 12:59:15,557 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 12:59:15,557 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 12:59:15,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1255767796, now seen corresponding path program 3 times [2025-04-14 12:59:15,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 12:59:15,557 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015243579] [2025-04-14 12:59:15,557 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-14 12:59:15,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 12:59:15,567 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 101 statements into 4 equivalence classes. [2025-04-14 12:59:15,579 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 56 of 101 statements. [2025-04-14 12:59:15,579 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-14 12:59:15,579 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:59:15,748 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-04-14 12:59:15,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 12:59:15,748 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015243579] [2025-04-14 12:59:15,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015243579] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 12:59:15,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 12:59:15,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-04-14 12:59:15,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862992166] [2025-04-14 12:59:15,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 12:59:15,748 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-14 12:59:15,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 12:59:15,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-14 12:59:15,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-04-14 12:59:15,749 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 12:59:15,749 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 12:59:15,749 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 12:59:15,749 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:15,749 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:15,749 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 12:59:15,749 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 12:59:15,749 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 12:59:16,243 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:16,243 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:16,243 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 12:59:16,243 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 12:59:16,244 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 12:59:16,244 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-04-14 12:59:16,244 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 2 more)] === [2025-04-14 12:59:16,244 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 12:59:16,244 INFO L139 ounterexampleChecker]: Examining path program with hash -1935388152, occurence #1 [2025-04-14 12:59:16,244 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 12:59:16,244 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 12:59:16,245 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 12:59:16,245 INFO L85 PathProgramCache]: Analyzing trace with hash -923218463, now seen corresponding path program 4 times [2025-04-14 12:59:16,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 12:59:16,245 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629977546] [2025-04-14 12:59:16,245 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-14 12:59:16,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 12:59:16,261 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 104 statements into 2 equivalence classes. [2025-04-14 12:59:16,305 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 104 of 104 statements. [2025-04-14 12:59:16,305 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-14 12:59:16,305 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:59:16,689 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 36 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 12:59:16,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 12:59:16,690 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629977546] [2025-04-14 12:59:16,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629977546] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 12:59:16,690 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117931165] [2025-04-14 12:59:16,690 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-14 12:59:16,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 12:59:16,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 12:59:16,691 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 12:59:16,693 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 12:59:16,754 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 104 statements into 2 equivalence classes. [2025-04-14 12:59:16,804 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 104 of 104 statements. [2025-04-14 12:59:16,804 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-14 12:59:16,804 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:59:16,806 INFO L256 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-04-14 12:59:16,808 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 12:59:17,215 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 40 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 12:59:17,215 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 12:59:17,544 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 35 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 12:59:17,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117931165] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 12:59:17,544 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 12:59:17,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 36 [2025-04-14 12:59:17,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078138766] [2025-04-14 12:59:17,545 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 12:59:17,545 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2025-04-14 12:59:17,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 12:59:17,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2025-04-14 12:59:17,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=392, Invalid=940, Unknown=0, NotChecked=0, Total=1332 [2025-04-14 12:59:17,547 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 12:59:17,547 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 12:59:17,547 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 7.405405405405405) internal successors, (274), 36 states have internal predecessors, (274), 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 12:59:17,547 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:17,547 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:17,547 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 12:59:17,547 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 12:59:17,547 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 12:59:17,547 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 12:59:17,721 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:17,721 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:17,721 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 12:59:17,721 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 12:59:17,721 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 12:59:17,721 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-14 12:59:17,727 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-04-14 12:59:17,921 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 12:59:17,922 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 2 more)] === [2025-04-14 12:59:17,922 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 12:59:17,922 INFO L139 ounterexampleChecker]: Examining path program with hash -1935388152, occurence #2 [2025-04-14 12:59:17,922 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 12:59:17,922 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-04-14 12:59:17,922 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 12:59:17,922 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-04-14 12:59:17,922 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 12:59:17,922 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-04-14 12:59:17,922 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 12:59:17,922 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2025-04-14 12:59:17,922 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 12:59:17,922 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 87 [2025-04-14 12:59:17,971 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 12:59:17,971 INFO L85 PathProgramCache]: Analyzing trace with hash -999405652, now seen corresponding path program 1 times [2025-04-14 12:59:17,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-14 12:59:17,971 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040107064] [2025-04-14 12:59:17,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 12:59:17,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 12:59:17,981 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-04-14 12:59:18,000 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-04-14 12:59:18,000 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 12:59:18,000 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:59:18,363 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 32 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 12:59:18,363 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-04-14 12:59:18,363 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040107064] [2025-04-14 12:59:18,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040107064] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 12:59:18,363 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1509016454] [2025-04-14 12:59:18,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 12:59:18,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 12:59:18,372 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-04-14 12:59:18,415 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-04-14 12:59:18,415 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 12:59:18,415 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:59:18,417 INFO L256 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-04-14 12:59:18,419 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 12:59:18,815 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 36 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 12:59:18,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1509016454] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 12:59:18,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-04-14 12:59:18,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2025-04-14 12:59:18,816 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-04-14 12:59:18,816 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 100 [2025-04-14 12:59:18,816 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 12:59:18,816 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 102 [2025-04-14 12:59:18,816 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 12:59:18,816 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 12:59:18,816 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 12:59:18,816 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 12:59:18,816 INFO L85 PathProgramCache]: Analyzing trace with hash -6452319, now seen corresponding path program 5 times [2025-04-14 12:59:18,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 12:59:18,816 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539995247] [2025-04-14 12:59:18,816 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-14 12:59:18,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 12:59:18,828 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 108 statements into 4 equivalence classes. [2025-04-14 12:59:18,904 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) and asserted 108 of 108 statements. [2025-04-14 12:59:18,904 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2025-04-14 12:59:18,904 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:59:19,307 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 21 proven. 39 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-14 12:59:19,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 12:59:19,308 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539995247] [2025-04-14 12:59:19,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539995247] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 12:59:19,308 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127543594] [2025-04-14 12:59:19,308 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-14 12:59:19,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 12:59:19,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 12:59:19,310 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 12:59:19,311 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 12:59:19,378 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 108 statements into 4 equivalence classes. [2025-04-14 12:59:19,496 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) and asserted 108 of 108 statements. [2025-04-14 12:59:19,496 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2025-04-14 12:59:19,496 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:59:19,501 INFO L256 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-04-14 12:59:19,502 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 12:59:19,793 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 16 proven. 23 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-04-14 12:59:19,793 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 12:59:20,241 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 33 proven. 6 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-04-14 12:59:20,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127543594] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 12:59:20,241 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 12:59:20,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 11] total 36 [2025-04-14 12:59:20,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099555016] [2025-04-14 12:59:20,242 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 12:59:20,242 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2025-04-14 12:59:20,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 12:59:20,243 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2025-04-14 12:59:20,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=1060, Unknown=0, NotChecked=0, Total=1260 [2025-04-14 12:59:20,244 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 12:59:20,244 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 12:59:20,244 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 7.416666666666667) internal successors, (267), 36 states have internal predecessors, (267), 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 12:59:20,244 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:20,244 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:20,244 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 12:59:20,244 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 12:59:20,244 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 12:59:20,244 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-14 12:59:20,244 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 12:59:21,189 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:21,189 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:21,189 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 12:59:21,189 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 12:59:21,189 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 12:59:21,189 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-14 12:59:21,189 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-04-14 12:59:21,196 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 12:59:21,390 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14,SelfDestructingSolverStorable15,SelfDestructingSolverStorable16 [2025-04-14 12:59:21,390 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 2 more)] === [2025-04-14 12:59:21,390 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 12:59:21,390 INFO L139 ounterexampleChecker]: Examining path program with hash 2003558791, occurence #1 [2025-04-14 12:59:21,390 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 12:59:21,390 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 12:59:21,391 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 12:59:21,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1963020155, now seen corresponding path program 6 times [2025-04-14 12:59:21,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 12:59:21,391 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117889754] [2025-04-14 12:59:21,391 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-14 12:59:21,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 12:59:21,402 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 64 statements into 5 equivalence classes. [2025-04-14 12:59:21,424 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 38 of 64 statements. [2025-04-14 12:59:21,425 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-04-14 12:59:21,425 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:59:21,570 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2025-04-14 12:59:21,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 12:59:21,571 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117889754] [2025-04-14 12:59:21,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117889754] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 12:59:21,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 12:59:21,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-14 12:59:21,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265504521] [2025-04-14 12:59:21,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 12:59:21,571 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-14 12:59:21,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 12:59:21,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-14 12:59:21,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-14 12:59:21,571 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 12:59:21,571 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 12:59:21,571 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 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 12:59:21,572 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:21,572 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:21,572 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 12:59:21,572 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 12:59:21,572 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 12:59:21,572 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-14 12:59:21,572 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-04-14 12:59:21,572 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 12:59:21,849 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:21,850 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:21,850 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 12:59:21,850 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 12:59:21,850 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 12:59:21,850 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-14 12:59:21,850 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-04-14 12:59:21,850 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 12:59:21,850 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-04-14 12:59:21,850 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 2 more)] === [2025-04-14 12:59:21,850 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 12:59:21,850 INFO L139 ounterexampleChecker]: Examining path program with hash 1488144363, occurence #1 [2025-04-14 12:59:21,850 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 12:59:21,850 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 12:59:21,851 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 12:59:21,851 INFO L85 PathProgramCache]: Analyzing trace with hash 794893976, now seen corresponding path program 7 times [2025-04-14 12:59:21,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 12:59:21,851 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120109038] [2025-04-14 12:59:21,851 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-14 12:59:21,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 12:59:21,860 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-04-14 12:59:21,876 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-04-14 12:59:21,877 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 12:59:21,877 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:59:21,951 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2025-04-14 12:59:21,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 12:59:21,951 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120109038] [2025-04-14 12:59:21,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120109038] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 12:59:21,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 12:59:21,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-14 12:59:21,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258485414] [2025-04-14 12:59:21,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 12:59:21,952 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-14 12:59:21,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 12:59:21,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-14 12:59:21,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-14 12:59:21,952 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 12:59:21,952 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 12:59:21,952 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 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 12:59:21,952 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:21,952 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:21,952 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 12:59:21,952 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 12:59:21,952 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 12:59:21,952 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-14 12:59:21,953 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-04-14 12:59:21,953 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 12:59:21,953 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 12:59:22,122 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:22,122 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:22,122 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 12:59:22,122 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 12:59:22,123 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 12:59:22,123 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-14 12:59:22,123 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-04-14 12:59:22,123 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 12:59:22,123 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:22,123 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-04-14 12:59:22,123 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 2 more)] === [2025-04-14 12:59:22,123 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 12:59:22,123 INFO L139 ounterexampleChecker]: Examining path program with hash 1469329736, occurence #1 [2025-04-14 12:59:22,123 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 12:59:22,123 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 12:59:22,123 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 12:59:22,123 INFO L85 PathProgramCache]: Analyzing trace with hash -30447677, now seen corresponding path program 8 times [2025-04-14 12:59:22,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 12:59:22,124 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730177994] [2025-04-14 12:59:22,124 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 12:59:22,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 12:59:22,133 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 58 statements into 2 equivalence classes. [2025-04-14 12:59:22,160 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 58 of 58 statements. [2025-04-14 12:59:22,160 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-14 12:59:22,160 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:59:22,421 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-04-14 12:59:22,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 12:59:22,422 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730177994] [2025-04-14 12:59:22,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730177994] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 12:59:22,422 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521307935] [2025-04-14 12:59:22,422 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 12:59:22,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 12:59:22,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 12:59:22,424 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 12:59:22,425 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 12:59:22,488 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 58 statements into 2 equivalence classes. [2025-04-14 12:59:22,525 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 58 of 58 statements. [2025-04-14 12:59:22,525 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-14 12:59:22,525 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:59:22,527 INFO L256 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-04-14 12:59:22,528 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 12:59:22,783 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-04-14 12:59:22,783 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 12:59:23,042 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-04-14 12:59:23,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521307935] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 12:59:23,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 12:59:23,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 11] total 24 [2025-04-14 12:59:23,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522473599] [2025-04-14 12:59:23,043 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 12:59:23,043 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-04-14 12:59:23,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 12:59:23,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-04-14 12:59:23,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=509, Unknown=0, NotChecked=0, Total=600 [2025-04-14 12:59:23,044 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 12:59:23,044 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 12:59:23,044 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.36) internal successors, (109), 24 states have internal predecessors, (109), 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 12:59:23,044 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:23,044 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:23,044 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 12:59:23,044 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 12:59:23,044 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 12:59:23,044 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-14 12:59:23,044 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-04-14 12:59:23,045 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 12:59:23,045 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:23,045 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 12:59:25,882 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:25,882 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:25,882 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 12:59:25,883 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 12:59:25,883 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 12:59:25,883 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-14 12:59:25,883 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-04-14 12:59:25,883 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 12:59:25,883 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:25,883 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2025-04-14 12:59:25,889 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 12:59:26,083 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 12:59:26,083 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 2 more)] === [2025-04-14 12:59:26,083 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 12:59:26,084 INFO L139 ounterexampleChecker]: Examining path program with hash 1529267126, occurence #1 [2025-04-14 12:59:26,084 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 12:59:26,084 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 12:59:26,084 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 12:59:26,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1155829539, now seen corresponding path program 9 times [2025-04-14 12:59:26,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 12:59:26,084 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132725979] [2025-04-14 12:59:26,084 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-14 12:59:26,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 12:59:26,097 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 88 statements into 5 equivalence classes. [2025-04-14 12:59:26,196 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 87 of 88 statements. [2025-04-14 12:59:26,196 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-04-14 12:59:26,196 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:59:26,557 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 30 proven. 23 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-04-14 12:59:26,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 12:59:26,558 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132725979] [2025-04-14 12:59:26,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132725979] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 12:59:26,558 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940509174] [2025-04-14 12:59:26,558 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-14 12:59:26,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 12:59:26,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 12:59:26,560 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 12:59:26,561 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 12:59:26,630 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 88 statements into 5 equivalence classes. [2025-04-14 12:59:26,771 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 87 of 88 statements. [2025-04-14 12:59:26,771 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-04-14 12:59:26,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:59:26,773 INFO L256 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-04-14 12:59:26,775 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 12:59:27,059 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 41 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-04-14 12:59:27,059 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 12:59:27,341 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 28 proven. 25 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-04-14 12:59:27,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940509174] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 12:59:27,341 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 12:59:27,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 38 [2025-04-14 12:59:27,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710610046] [2025-04-14 12:59:27,342 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 12:59:27,344 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2025-04-14 12:59:27,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 12:59:27,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2025-04-14 12:59:27,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=1144, Unknown=0, NotChecked=0, Total=1406 [2025-04-14 12:59:27,345 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 12:59:27,345 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 12:59:27,345 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 5.157894736842105) internal successors, (196), 38 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 12:59:27,345 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:27,345 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:27,345 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 12:59:27,345 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 12:59:27,345 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 12:59:27,345 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-14 12:59:27,345 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-04-14 12:59:27,345 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 12:59:27,345 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:27,345 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2025-04-14 12:59:27,345 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 12:59:27,537 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:27,537 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:27,537 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 12:59:27,537 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 12:59:27,537 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 12:59:27,537 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-14 12:59:27,537 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-04-14 12:59:27,537 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 12:59:27,537 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:27,537 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2025-04-14 12:59:27,537 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-14 12:59:27,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-04-14 12:59:27,738 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 12:59:27,738 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 2 more)] === [2025-04-14 12:59:27,738 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 12:59:27,738 INFO L139 ounterexampleChecker]: Examining path program with hash 1529267126, occurence #2 [2025-04-14 12:59:27,738 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 12:59:27,738 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2025-04-14 12:59:27,738 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 12:59:27,738 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-04-14 12:59:27,738 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 12:59:27,738 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2025-04-14 12:59:27,739 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 12:59:27,739 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2025-04-14 12:59:27,739 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 12:59:27,739 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 86 [2025-04-14 12:59:27,739 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 12:59:27,739 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 12:59:27,739 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 12:59:27,739 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 12:59:27,739 INFO L85 PathProgramCache]: Analyzing trace with hash -751409582, now seen corresponding path program 10 times [2025-04-14 12:59:27,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 12:59:27,739 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27822796] [2025-04-14 12:59:27,739 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-14 12:59:27,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 12:59:27,751 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 89 statements into 2 equivalence classes. [2025-04-14 12:59:27,773 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 89 of 89 statements. [2025-04-14 12:59:27,773 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-14 12:59:27,773 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:59:28,327 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-04-14 12:59:28,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 12:59:28,327 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27822796] [2025-04-14 12:59:28,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27822796] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 12:59:28,327 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441337780] [2025-04-14 12:59:28,327 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-14 12:59:28,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 12:59:28,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 12:59:28,329 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 12:59:28,331 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 12:59:28,403 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 89 statements into 2 equivalence classes. [2025-04-14 12:59:28,450 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 89 of 89 statements. [2025-04-14 12:59:28,450 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-14 12:59:28,450 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:59:28,455 INFO L256 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-04-14 12:59:28,457 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 12:59:28,718 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2025-04-14 12:59:28,718 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 12:59:28,894 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2025-04-14 12:59:28,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [441337780] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 12:59:28,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 12:59:28,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 7] total 27 [2025-04-14 12:59:28,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781368236] [2025-04-14 12:59:28,895 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 12:59:28,895 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-04-14 12:59:28,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 12:59:28,896 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-04-14 12:59:28,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=661, Unknown=0, NotChecked=0, Total=756 [2025-04-14 12:59:28,896 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 12:59:28,896 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 12:59:28,896 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.071428571428571) internal successors, (170), 27 states have internal predecessors, (170), 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 12:59:28,896 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:28,896 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:28,896 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 12:59:28,896 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 12:59:28,896 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 12:59:28,896 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-14 12:59:28,896 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-04-14 12:59:28,896 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 12:59:28,896 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:28,896 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2025-04-14 12:59:28,896 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-14 12:59:28,896 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 12:59:31,595 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:31,595 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:31,595 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 12:59:31,595 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 12:59:31,595 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 12:59:31,595 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-14 12:59:31,595 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-04-14 12:59:31,596 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 12:59:31,596 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 12:59:31,596 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2025-04-14 12:59:31,596 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-14 12:59:31,596 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2025-04-14 12:59:31,602 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-04-14 12:59:31,796 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 12:59:31,796 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 2 more)] === [2025-04-14 12:59:31,796 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 12:59:31,796 INFO L139 ounterexampleChecker]: Examining path program with hash 1904891549, occurence #1 [2025-04-14 12:59:31,796 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 12:59:31,796 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 12:59:31,797 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 12:59:31,797 INFO L85 PathProgramCache]: Analyzing trace with hash 575268762, now seen corresponding path program 11 times [2025-04-14 12:59:31,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 12:59:31,797 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613711023] [2025-04-14 12:59:31,797 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-14 12:59:31,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 12:59:31,807 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 89 statements into 5 equivalence classes. [2025-04-14 12:59:31,898 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) and asserted 89 of 89 statements. [2025-04-14 12:59:31,899 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2025-04-14 12:59:31,899 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:59:33,495 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 17 proven. 64 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-04-14 12:59:33,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 12:59:33,495 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613711023] [2025-04-14 12:59:33,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613711023] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 12:59:33,495 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468093452] [2025-04-14 12:59:33,495 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-14 12:59:33,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 12:59:33,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 12:59:33,497 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 12:59:33,499 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 12:59:33,568 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 89 statements into 5 equivalence classes. [2025-04-14 12:59:33,875 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) and asserted 89 of 89 statements. [2025-04-14 12:59:33,875 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2025-04-14 12:59:33,875 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:59:33,879 INFO L256 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 87 conjuncts are in the unsatisfiable core [2025-04-14 12:59:33,882 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 12:59:35,409 INFO L325 Elim1Store]: treesize reduction 186, result has 44.1 percent of original size [2025-04-14 12:59:35,409 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 235 treesize of output 187 [2025-04-14 12:59:35,429 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 42 proven. 48 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-04-14 12:59:35,429 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 12:59:38,647 INFO L325 Elim1Store]: treesize reduction 177, result has 88.7 percent of original size [2025-04-14 12:59:38,647 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 237 treesize of output 1440 [2025-04-14 13:04:00,402 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101 [2025-04-14 13:04:00,402 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 13:04:00,404 WARN L310 FreeRefinementEngine]: Global settings require throwing the following exception [2025-04-14 13:04:00,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-04-14 13:04:00,605 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,SelfDestructingSolverStorable22 [2025-04-14 13:04:00,612 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 13:04:00,613 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.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.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.computeBackwardSequence(IterativePredicateTransformer.java:395) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:325) 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 13:04:00,628 INFO L158 Benchmark]: Toolchain (without parser) took 291866.28ms. Allocated memory was 125.8MB in the beginning and 893.4MB in the end (delta: 767.6MB). Free memory was 86.1MB in the beginning and 495.5MB in the end (delta: -409.4MB). Peak memory consumption was 571.6MB. Max. memory is 8.0GB. [2025-04-14 13:04:00,628 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 159.4MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 13:04:00,628 INFO L158 Benchmark]: CACSL2BoogieTranslator took 280.92ms. Allocated memory is still 125.8MB. Free memory was 86.1MB in the beginning and 70.0MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2025-04-14 13:04:00,628 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.62ms. Allocated memory is still 125.8MB. Free memory was 70.0MB in the beginning and 67.4MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 13:04:00,629 INFO L158 Benchmark]: Boogie Preprocessor took 27.49ms. Allocated memory is still 125.8MB. Free memory was 67.4MB in the beginning and 65.8MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-14 13:04:00,629 INFO L158 Benchmark]: RCFGBuilder took 635.10ms. Allocated memory is still 125.8MB. Free memory was 65.8MB in the beginning and 50.7MB in the end (delta: 15.1MB). Peak memory consumption was 52.4MB. Max. memory is 8.0GB. [2025-04-14 13:04:00,629 INFO L158 Benchmark]: TraceAbstraction took 290879.29ms. Allocated memory was 125.8MB in the beginning and 893.4MB in the end (delta: 767.6MB). Free memory was 50.0MB in the beginning and 495.5MB in the end (delta: -445.5MB). Peak memory consumption was 536.0MB. Max. memory is 8.0GB. [2025-04-14 13:04:00,637 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 159.4MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 280.92ms. Allocated memory is still 125.8MB. Free memory was 86.1MB in the beginning and 70.0MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.62ms. Allocated memory is still 125.8MB. Free memory was 70.0MB in the beginning and 67.4MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 27.49ms. Allocated memory is still 125.8MB. Free memory was 67.4MB in the beginning and 65.8MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 635.10ms. Allocated memory is still 125.8MB. Free memory was 65.8MB in the beginning and 50.7MB in the end (delta: 15.1MB). Peak memory consumption was 52.4MB. Max. memory is 8.0GB. * TraceAbstraction took 290879.29ms. Allocated memory was 125.8MB in the beginning and 893.4MB in the end (delta: 767.6MB). Free memory was 50.0MB in the beginning and 495.5MB in the end (delta: -445.5MB). Peak memory consumption was 536.0MB. 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...