/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_IcfgBuilder.xml -s ../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf --preprocessor.replace.while.statements.and.if-then-else.statements false -i ../../../trunk/examples/svcomp/weaver/parallel-misc-3-extended.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-dev-4cc0a57-m [2025-04-14 15:57:52,854 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-14 15:57:52,905 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 15:57:52,910 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-14 15:57:52,910 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-14 15:57:52,930 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-14 15:57:52,931 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-14 15:57:52,932 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-14 15:57:52,932 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-14 15:57:52,932 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-14 15:57:52,933 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-14 15:57:52,933 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-14 15:57:52,933 INFO L153 SettingsManager]: * Use SBE=true [2025-04-14 15:57:52,933 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-14 15:57:52,933 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-14 15:57:52,934 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-14 15:57:52,934 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-14 15:57:52,934 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-14 15:57:52,934 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-14 15:57:52,934 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-14 15:57:52,934 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-14 15:57:52,934 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-14 15:57:52,934 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-14 15:57:52,934 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-14 15:57:52,934 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-14 15:57:52,934 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-14 15:57:52,934 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-14 15:57:52,934 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 15:57:52,934 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 15:57:52,934 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 15:57:52,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 15:57:52,935 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-14 15:57:52,935 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 15:57:52,935 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 15:57:52,935 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 15:57:52,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 15:57:52,935 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-14 15:57:52,935 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-14 15:57:52,935 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-14 15:57:52,935 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-14 15:57:52,935 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-14 15:57:52,935 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-14 15:57:52,935 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-14 15:57:52,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-14 15:57:52,935 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-14 15:57:52,935 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-14 15:57:52,936 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-14 15:57:52,936 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false [2025-04-14 15:57:53,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-14 15:57:53,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-14 15:57:53,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-14 15:57:53,138 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-14 15:57:53,139 INFO L274 PluginConnector]: CDTParser initialized [2025-04-14 15:57:53,140 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-3-extended.wvr.c [2025-04-14 15:57:54,390 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/991751f58/7a2d54a18c5f419a8424cd986b97fabf/FLAG41a7c045c [2025-04-14 15:57:54,586 INFO L389 CDTParser]: Found 1 translation units. [2025-04-14 15:57:54,586 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-3-extended.wvr.c [2025-04-14 15:57:54,593 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/991751f58/7a2d54a18c5f419a8424cd986b97fabf/FLAG41a7c045c [2025-04-14 15:57:55,390 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/991751f58/7a2d54a18c5f419a8424cd986b97fabf [2025-04-14 15:57:55,392 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-14 15:57:55,393 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-14 15:57:55,395 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-14 15:57:55,395 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-14 15:57:55,398 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-14 15:57:55,398 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 03:57:55" (1/1) ... [2025-04-14 15:57:55,399 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c354d62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:57:55, skipping insertion in model container [2025-04-14 15:57:55,399 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 03:57:55" (1/1) ... [2025-04-14 15:57:55,410 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-14 15:57:55,543 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/parallel-misc-3-extended.wvr.c[2421,2434] [2025-04-14 15:57:55,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 15:57:55,557 INFO L200 MainTranslator]: Completed pre-run [2025-04-14 15:57:55,576 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/parallel-misc-3-extended.wvr.c[2421,2434] [2025-04-14 15:57:55,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 15:57:55,586 INFO L204 MainTranslator]: Completed translation [2025-04-14 15:57:55,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:57:55 WrapperNode [2025-04-14 15:57:55,586 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-14 15:57:55,587 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-14 15:57:55,587 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-14 15:57:55,587 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-14 15:57:55,591 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:57:55" (1/1) ... [2025-04-14 15:57:55,597 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:57:55" (1/1) ... [2025-04-14 15:57:55,610 INFO L138 Inliner]: procedures = 19, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 52 [2025-04-14 15:57:55,611 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-14 15:57:55,611 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-14 15:57:55,611 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-14 15:57:55,611 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-14 15:57:55,616 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:57:55" (1/1) ... [2025-04-14 15:57:55,616 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:57:55" (1/1) ... [2025-04-14 15:57:55,622 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:57:55" (1/1) ... [2025-04-14 15:57:55,622 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:57:55" (1/1) ... [2025-04-14 15:57:55,630 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:57:55" (1/1) ... [2025-04-14 15:57:55,631 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:57:55" (1/1) ... [2025-04-14 15:57:55,631 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:57:55" (1/1) ... [2025-04-14 15:57:55,632 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:57:55" (1/1) ... [2025-04-14 15:57:55,638 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-14 15:57:55,639 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-04-14 15:57:55,639 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-04-14 15:57:55,639 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-04-14 15:57:55,639 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:57:55" (1/1) ... [2025-04-14 15:57:55,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 15:57:55,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 15:57:55,664 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 15:57:55,671 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 15:57:55,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-14 15:57:55,688 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-14 15:57:55,688 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-14 15:57:55,689 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-14 15:57:55,689 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-14 15:57:55,689 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-14 15:57:55,689 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-14 15:57:55,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-14 15:57:55,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-14 15:57:55,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-14 15:57:55,690 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-14 15:57:55,751 INFO L256 CfgBuilder]: Building ICFG [2025-04-14 15:57:55,752 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-14 15:57:55,888 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-14 15:57:55,888 INFO L307 CfgBuilder]: Performing block encoding [2025-04-14 15:57:55,984 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-14 15:57:55,985 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-14 15:57:55,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 03:57:55 BoogieIcfgContainer [2025-04-14 15:57:55,985 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-04-14 15:57:55,986 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-14 15:57:55,986 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-14 15:57:55,992 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-14 15:57:55,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.04 03:57:55" (1/3) ... [2025-04-14 15:57:55,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c3d6d38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 03:57:55, skipping insertion in model container [2025-04-14 15:57:55,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:57:55" (2/3) ... [2025-04-14 15:57:55,993 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c3d6d38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 03:57:55, skipping insertion in model container [2025-04-14 15:57:55,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 03:57:55" (3/3) ... [2025-04-14 15:57:55,993 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-misc-3-extended.wvr.c [2025-04-14 15:57:56,003 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-14 15:57:56,006 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-misc-3-extended.wvr.c that has 4 procedures, 37 locations, 39 edges, 1 initial locations, 3 loop locations, and 1 error locations. [2025-04-14 15:57:56,006 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-14 15:57:56,058 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-04-14 15:57:56,090 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 15:57:56,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-14 15:57:56,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 15:57:56,094 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 15:57:56,095 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 15:57:56,143 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-14 15:57:56,156 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-14 15:57:56,162 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;@2db8a901, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 15:57:56,162 INFO L341 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-04-14 15:57:56,642 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 15:57:56,642 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 15:57:56,642 INFO L139 ounterexampleChecker]: Examining path program with hash 1856805083, occurence #1 [2025-04-14 15:57:56,642 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 15:57:56,642 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 15:57:56,646 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 15:57:56,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1160061946, now seen corresponding path program 1 times [2025-04-14 15:57:56,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 15:57:56,652 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160500249] [2025-04-14 15:57:56,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 15:57:56,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 15:57:56,704 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-04-14 15:57:56,859 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-04-14 15:57:56,859 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 15:57:56,860 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:57:57,305 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 15:57:57,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 15:57:57,305 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160500249] [2025-04-14 15:57:57,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160500249] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 15:57:57,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 15:57:57,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 15:57:57,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405552010] [2025-04-14 15:57:57,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 15:57:57,311 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-14 15:57:57,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 15:57:57,324 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-14 15:57:57,324 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-14 15:57:57,324 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:57:57,325 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 15:57:57,326 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 15:57:57,326 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:57:57,452 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:57:57,453 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-14 15:57:57,453 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 15:57:57,453 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 15:57:57,453 INFO L139 ounterexampleChecker]: Examining path program with hash 12760105, occurence #1 [2025-04-14 15:57:57,453 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 15:57:57,453 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 15:57:57,454 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 15:57:57,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1554412412, now seen corresponding path program 1 times [2025-04-14 15:57:57,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 15:57:57,454 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346466972] [2025-04-14 15:57:57,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 15:57:57,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 15:57:57,479 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-04-14 15:57:57,608 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-04-14 15:57:57,609 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 15:57:57,609 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:57:57,937 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-04-14 15:57:57,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 15:57:57,937 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346466972] [2025-04-14 15:57:57,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346466972] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 15:57:57,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 15:57:57,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 15:57:57,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693892929] [2025-04-14 15:57:57,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 15:57:57,938 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-14 15:57:57,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 15:57:57,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-14 15:57:57,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-14 15:57:57,939 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:57:57,941 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 15:57:57,941 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 15:57:57,941 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:57:57,941 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:57:58,035 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:57:58,036 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:57:58,036 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-14 15:57:58,036 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 15:57:58,036 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 15:57:58,036 INFO L139 ounterexampleChecker]: Examining path program with hash 2095690969, occurence #1 [2025-04-14 15:57:58,036 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 15:57:58,036 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 15:57:58,037 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 15:57:58,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1563494742, now seen corresponding path program 1 times [2025-04-14 15:57:58,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 15:57:58,037 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064833394] [2025-04-14 15:57:58,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 15:57:58,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 15:57:58,059 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 120 statements into 1 equivalence classes. [2025-04-14 15:57:58,132 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 120 of 120 statements. [2025-04-14 15:57:58,132 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 15:57:58,132 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:57:58,406 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-04-14 15:57:58,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 15:57:58,406 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064833394] [2025-04-14 15:57:58,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064833394] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 15:57:58,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 15:57:58,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 15:57:58,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13772269] [2025-04-14 15:57:58,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 15:57:58,407 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-14 15:57:58,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 15:57:58,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-14 15:57:58,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-14 15:57:58,408 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:57:58,408 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 15:57:58,408 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 15:57:58,408 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:57:58,408 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:57:58,408 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:57:58,507 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:57:58,507 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:57:58,507 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:57:58,508 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-14 15:57:58,508 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 15:57:58,508 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 15:57:58,508 INFO L139 ounterexampleChecker]: Examining path program with hash 931570319, occurence #1 [2025-04-14 15:57:58,508 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 15:57:58,508 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 15:57:58,509 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 15:57:58,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1670067855, now seen corresponding path program 2 times [2025-04-14 15:57:58,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 15:57:58,509 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123471496] [2025-04-14 15:57:58,509 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 15:57:58,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 15:57:58,538 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 129 statements into 2 equivalence classes. [2025-04-14 15:57:58,602 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 129 of 129 statements. [2025-04-14 15:57:58,603 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-14 15:57:58,603 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:57:59,599 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 12 proven. 97 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-04-14 15:57:59,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 15:57:59,599 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123471496] [2025-04-14 15:57:59,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123471496] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 15:57:59,599 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266270085] [2025-04-14 15:57:59,599 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 15:57:59,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 15:57:59,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 15:57:59,603 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 15:57:59,605 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 15:57:59,660 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 129 statements into 2 equivalence classes. [2025-04-14 15:57:59,704 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 129 of 129 statements. [2025-04-14 15:57:59,705 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-14 15:57:59,705 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:57:59,707 INFO L256 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-04-14 15:57:59,711 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 15:57:59,759 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2025-04-14 15:57:59,759 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-14 15:57:59,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266270085] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 15:57:59,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-14 15:57:59,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2025-04-14 15:57:59,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222167726] [2025-04-14 15:57:59,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 15:57:59,759 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-14 15:57:59,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 15:57:59,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-14 15:57:59,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2025-04-14 15:57:59,760 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:57:59,760 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 15:57:59,760 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 15:57:59,760 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:57:59,760 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:57:59,760 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:57:59,760 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:57:59,833 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:57:59,833 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:57:59,833 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:57:59,833 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:57:59,840 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 15:58:00,034 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2025-04-14 15:58:00,034 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 15:58:00,034 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 15:58:00,035 INFO L139 ounterexampleChecker]: Examining path program with hash 1175586089, occurence #1 [2025-04-14 15:58:00,035 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 15:58:00,035 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 15:58:00,035 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 15:58:00,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1579590209, now seen corresponding path program 3 times [2025-04-14 15:58:00,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 15:58:00,035 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507138861] [2025-04-14 15:58:00,035 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-14 15:58:00,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 15:58:00,046 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 94 statements into 5 equivalence classes. [2025-04-14 15:58:00,076 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 72 of 94 statements. [2025-04-14 15:58:00,076 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-04-14 15:58:00,076 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:58:00,269 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-04-14 15:58:00,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 15:58:00,269 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507138861] [2025-04-14 15:58:00,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507138861] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 15:58:00,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 15:58:00,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 15:58:00,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175500897] [2025-04-14 15:58:00,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 15:58:00,270 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-14 15:58:00,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 15:58:00,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-14 15:58:00,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-14 15:58:00,270 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:58:00,270 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 15:58:00,271 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 15:58:00,271 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:00,271 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:00,271 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:00,271 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:00,271 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:58:00,351 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:00,351 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:00,351 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:00,351 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:00,352 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:00,352 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-14 15:58:00,352 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 15:58:00,352 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 15:58:00,352 INFO L139 ounterexampleChecker]: Examining path program with hash 1733031857, occurence #1 [2025-04-14 15:58:00,352 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 15:58:00,352 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 15:58:00,352 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 15:58:00,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1969389153, now seen corresponding path program 4 times [2025-04-14 15:58:00,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 15:58:00,353 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920783654] [2025-04-14 15:58:00,353 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-14 15:58:00,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 15:58:00,365 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 98 statements into 2 equivalence classes. [2025-04-14 15:58:00,379 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 98 of 98 statements. [2025-04-14 15:58:00,379 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-14 15:58:00,379 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:58:00,723 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-04-14 15:58:00,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 15:58:00,724 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920783654] [2025-04-14 15:58:00,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920783654] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 15:58:00,724 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814979070] [2025-04-14 15:58:00,724 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-14 15:58:00,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 15:58:00,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 15:58:00,727 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 15:58:00,728 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 15:58:00,779 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 98 statements into 2 equivalence classes. [2025-04-14 15:58:00,812 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 98 of 98 statements. [2025-04-14 15:58:00,812 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-14 15:58:00,812 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:58:00,817 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 55 conjuncts are in the unsatisfiable core [2025-04-14 15:58:00,819 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 15:58:00,947 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-04-14 15:58:00,947 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 15:58:01,053 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-04-14 15:58:01,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1814979070] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 15:58:01,053 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 15:58:01,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 7 [2025-04-14 15:58:01,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168667884] [2025-04-14 15:58:01,053 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 15:58:01,054 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-04-14 15:58:01,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 15:58:01,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-04-14 15:58:01,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-04-14 15:58:01,054 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:58:01,054 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 15:58:01,054 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 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 15:58:01,054 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:01,055 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:01,055 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:01,055 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:01,055 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:01,055 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:58:01,233 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:01,234 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:01,234 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:01,234 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:01,234 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:01,234 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 15:58:01,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-04-14 15:58:01,437 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 15:58:01,438 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 15:58:01,438 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 15:58:01,438 INFO L139 ounterexampleChecker]: Examining path program with hash -2084253953, occurence #1 [2025-04-14 15:58:01,438 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 15:58:01,438 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 15:58:01,438 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 15:58:01,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1619414776, now seen corresponding path program 5 times [2025-04-14 15:58:01,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 15:58:01,438 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38254375] [2025-04-14 15:58:01,438 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-14 15:58:01,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 15:58:01,451 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 95 statements into 4 equivalence classes. [2025-04-14 15:58:01,488 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) and asserted 95 of 95 statements. [2025-04-14 15:58:01,488 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2025-04-14 15:58:01,488 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:58:01,673 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2025-04-14 15:58:01,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 15:58:01,673 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38254375] [2025-04-14 15:58:01,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38254375] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 15:58:01,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 15:58:01,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 15:58:01,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267247023] [2025-04-14 15:58:01,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 15:58:01,674 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-14 15:58:01,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 15:58:01,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-14 15:58:01,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-14 15:58:01,675 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:58:01,675 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 15:58:01,675 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 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 15:58:01,675 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:01,675 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:01,675 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:01,675 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:01,675 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:01,675 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 15:58:01,675 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:58:02,265 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:02,265 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:02,265 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:02,265 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:02,265 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:02,265 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 15:58:02,265 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:02,267 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2025-04-14 15:58:02,267 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-04-14 15:58:02,267 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-04-14 15:58:02,267 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-04-14 15:58:02,267 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-04-14 15:58:02,271 INFO L422 BasicCegarLoop]: Path program histogram: [5, 1, 1] [2025-04-14 15:58:02,273 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-14 15:58:02,273 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-14 15:58:02,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2025-04-14 15:58:02,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 03:58:02 BasicIcfg [2025-04-14 15:58:02,281 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-14 15:58:02,281 INFO L158 Benchmark]: Toolchain (without parser) took 6888.06ms. Allocated memory was 142.6MB in the beginning and 373.3MB in the end (delta: 230.7MB). Free memory was 99.8MB in the beginning and 129.7MB in the end (delta: -29.8MB). Peak memory consumption was 199.7MB. Max. memory is 8.0GB. [2025-04-14 15:58:02,282 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 155.2MB. Free memory is still 86.3MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 15:58:02,282 INFO L158 Benchmark]: CACSL2BoogieTranslator took 191.61ms. Allocated memory is still 142.6MB. Free memory was 99.8MB in the beginning and 85.1MB in the end (delta: 14.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-14 15:58:02,282 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.53ms. Allocated memory is still 142.6MB. Free memory was 85.1MB in the beginning and 83.5MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-14 15:58:02,282 INFO L158 Benchmark]: Boogie Preprocessor took 27.28ms. Allocated memory is still 142.6MB. Free memory was 83.5MB in the beginning and 82.8MB in the end (delta: 705.1kB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 15:58:02,282 INFO L158 Benchmark]: IcfgBuilder took 346.15ms. Allocated memory is still 142.6MB. Free memory was 82.2MB in the beginning and 55.8MB in the end (delta: 26.4MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2025-04-14 15:58:02,282 INFO L158 Benchmark]: TraceAbstraction took 6294.61ms. Allocated memory was 142.6MB in the beginning and 373.3MB in the end (delta: 230.7MB). Free memory was 55.8MB in the beginning and 129.7MB in the end (delta: -73.9MB). Peak memory consumption was 157.7MB. Max. memory is 8.0GB. [2025-04-14 15:58:02,283 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 155.2MB. Free memory is still 86.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 191.61ms. Allocated memory is still 142.6MB. Free memory was 99.8MB in the beginning and 85.1MB in the end (delta: 14.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.53ms. Allocated memory is still 142.6MB. Free memory was 85.1MB in the beginning and 83.5MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.28ms. Allocated memory is still 142.6MB. Free memory was 83.5MB in the beginning and 82.8MB in the end (delta: 705.1kB). There was no memory consumed. Max. memory is 8.0GB. * IcfgBuilder took 346.15ms. Allocated memory is still 142.6MB. Free memory was 82.2MB in the beginning and 55.8MB in the end (delta: 26.4MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * TraceAbstraction took 6294.61ms. Allocated memory was 142.6MB in the beginning and 373.3MB in the end (delta: 230.7MB). Free memory was 55.8MB in the beginning and 129.7MB in the end (delta: -73.9MB). Peak memory consumption was 157.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 30738, independent: 27409, independent conditional: 25952, independent unconditional: 1457, dependent: 3329, dependent conditional: 3309, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 27838, independent: 27409, independent conditional: 25952, independent unconditional: 1457, dependent: 429, dependent conditional: 409, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 27838, independent: 27409, independent conditional: 25952, independent unconditional: 1457, dependent: 429, dependent conditional: 409, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 30122, independent: 27409, independent conditional: 25952, independent unconditional: 1457, dependent: 2713, dependent conditional: 2693, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 30122, independent: 27409, independent conditional: 0, independent unconditional: 27409, dependent: 2713, dependent conditional: 326, dependent unconditional: 2387, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 30122, independent: 27409, independent conditional: 0, independent unconditional: 27409, dependent: 2713, dependent conditional: 326, dependent unconditional: 2387, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1061, independent: 1009, independent conditional: 0, independent unconditional: 1009, dependent: 52, dependent conditional: 32, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1061, independent: 999, independent conditional: 0, independent unconditional: 999, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 62, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 52, dependent conditional: 32, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 62, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 52, dependent conditional: 32, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 441, independent: 87, independent conditional: 0, independent unconditional: 87, dependent: 355, dependent conditional: 125, dependent unconditional: 230, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 30122, independent: 26400, independent conditional: 0, independent unconditional: 26400, dependent: 2661, dependent conditional: 294, dependent unconditional: 2367, unknown: 1061, unknown conditional: 32, unknown unconditional: 1029] , Statistics on independence cache: Total cache size (in pairs): 1061, Positive cache size: 1009, Positive conditional cache size: 0, Positive unconditional cache size: 1009, Negative cache size: 52, Negative conditional cache size: 32, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 28319, Maximal queried relation: 7, Independence queries for same thread: 2900, Persistent sets #1 benchmarks: Persistent set computation time: 0.5s, Number of persistent set computation: 1285, Number of trivial persistent sets: 1057, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1477, independent: 1457, independent conditional: 0, independent unconditional: 1457, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 30738, independent: 27409, independent conditional: 25952, independent unconditional: 1457, dependent: 3329, dependent conditional: 3309, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 27838, independent: 27409, independent conditional: 25952, independent unconditional: 1457, dependent: 429, dependent conditional: 409, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 27838, independent: 27409, independent conditional: 25952, independent unconditional: 1457, dependent: 429, dependent conditional: 409, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 30122, independent: 27409, independent conditional: 25952, independent unconditional: 1457, dependent: 2713, dependent conditional: 2693, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 30122, independent: 27409, independent conditional: 0, independent unconditional: 27409, dependent: 2713, dependent conditional: 326, dependent unconditional: 2387, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 30122, independent: 27409, independent conditional: 0, independent unconditional: 27409, dependent: 2713, dependent conditional: 326, dependent unconditional: 2387, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1061, independent: 1009, independent conditional: 0, independent unconditional: 1009, dependent: 52, dependent conditional: 32, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1061, independent: 999, independent conditional: 0, independent unconditional: 999, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 62, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 52, dependent conditional: 32, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 62, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 52, dependent conditional: 32, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 441, independent: 87, independent conditional: 0, independent unconditional: 87, dependent: 355, dependent conditional: 125, dependent unconditional: 230, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 30122, independent: 26400, independent conditional: 0, independent unconditional: 26400, dependent: 2661, dependent conditional: 294, dependent unconditional: 2367, unknown: 1061, unknown conditional: 32, unknown unconditional: 1029] , Statistics on independence cache: Total cache size (in pairs): 1061, Positive cache size: 1009, Positive conditional cache size: 0, Positive unconditional cache size: 1009, Negative cache size: 52, Negative conditional cache size: 32, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 28319, Maximal queried relation: 7, Independence queries for same thread: 2900 - PositiveResult [Line: 113]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 63 locations, 74 edges, 4 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 1.7s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 983 NumberOfCodeBlocks, 961 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1071 ConstructedInterpolants, 0 QuantifiedInterpolants, 2804 SizeOfPredicates, 10 NumberOfNonLiveVariables, 634 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 459/715 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 0, ConditionCalculationTime [ms]: 0, ConditionCalculations: 0, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, UnsatisfiedConditions: 0, ImperfectProofs: 0 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-14 15:58:02,297 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 0 Received shutdown request...