/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-4.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-dev-4cc0a57-m [2025-04-14 15:58:14,169 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-14 15:58:14,219 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 15:58:14,225 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-14 15:58:14,225 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-14 15:58:14,248 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-14 15:58:14,250 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-14 15:58:14,250 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-14 15:58:14,250 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-14 15:58:14,250 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-14 15:58:14,251 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-14 15:58:14,251 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-14 15:58:14,251 INFO L153 SettingsManager]: * Use SBE=true [2025-04-14 15:58:14,251 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-14 15:58:14,251 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-14 15:58:14,251 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-14 15:58:14,251 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-14 15:58:14,251 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-14 15:58:14,251 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-14 15:58:14,251 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-14 15:58:14,251 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-14 15:58:14,251 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-14 15:58:14,251 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-14 15:58:14,251 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-14 15:58:14,251 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-14 15:58:14,252 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-14 15:58:14,252 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-14 15:58:14,252 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 15:58:14,252 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 15:58:14,252 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 15:58:14,252 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 15:58:14,252 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-14 15:58:14,252 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 15:58:14,252 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 15:58:14,252 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 15:58:14,252 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 15:58:14,252 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-14 15:58:14,252 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-14 15:58:14,252 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-14 15:58:14,252 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-14 15:58:14,252 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-14 15:58:14,252 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-14 15:58:14,252 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-14 15:58:14,253 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-14 15:58:14,253 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-14 15:58:14,253 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-14 15:58:14,253 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-14 15:58:14,253 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 15:58:14,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-14 15:58:14,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-14 15:58:14,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-14 15:58:14,469 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-14 15:58:14,469 INFO L274 PluginConnector]: CDTParser initialized [2025-04-14 15:58:14,471 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-4.wvr.c [2025-04-14 15:58:15,783 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad60d9d7d/e6b69ef2c4df4212824cd8577f68ae98/FLAG04260bf8b [2025-04-14 15:58:15,942 INFO L389 CDTParser]: Found 1 translation units. [2025-04-14 15:58:15,942 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-4.wvr.c [2025-04-14 15:58:15,947 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad60d9d7d/e6b69ef2c4df4212824cd8577f68ae98/FLAG04260bf8b [2025-04-14 15:58:16,834 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad60d9d7d/e6b69ef2c4df4212824cd8577f68ae98 [2025-04-14 15:58:16,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-14 15:58:16,837 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-14 15:58:16,838 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-14 15:58:16,838 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-14 15:58:16,845 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-14 15:58:16,845 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 03:58:16" (1/1) ... [2025-04-14 15:58:16,846 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@568e0a78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:58:16, skipping insertion in model container [2025-04-14 15:58:16,846 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 03:58:16" (1/1) ... [2025-04-14 15:58:16,856 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-14 15:58:17,010 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-4.wvr.c[2257,2270] [2025-04-14 15:58:17,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 15:58:17,025 INFO L200 MainTranslator]: Completed pre-run [2025-04-14 15:58:17,052 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-4.wvr.c[2257,2270] [2025-04-14 15:58:17,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 15:58:17,061 INFO L204 MainTranslator]: Completed translation [2025-04-14 15:58:17,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:58:17 WrapperNode [2025-04-14 15:58:17,062 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-14 15:58:17,062 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-14 15:58:17,063 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-14 15:58:17,063 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-14 15:58:17,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:58:17" (1/1) ... [2025-04-14 15:58:17,071 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:58:17" (1/1) ... [2025-04-14 15:58:17,084 INFO L138 Inliner]: procedures = 19, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 61 [2025-04-14 15:58:17,085 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-14 15:58:17,085 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-14 15:58:17,085 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-14 15:58:17,085 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-14 15:58:17,090 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:58:17" (1/1) ... [2025-04-14 15:58:17,090 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:58:17" (1/1) ... [2025-04-14 15:58:17,096 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:58:17" (1/1) ... [2025-04-14 15:58:17,097 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:58:17" (1/1) ... [2025-04-14 15:58:17,099 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:58:17" (1/1) ... [2025-04-14 15:58:17,103 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:58:17" (1/1) ... [2025-04-14 15:58:17,103 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:58:17" (1/1) ... [2025-04-14 15:58:17,104 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:58:17" (1/1) ... [2025-04-14 15:58:17,106 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-14 15:58:17,107 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-04-14 15:58:17,107 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-04-14 15:58:17,107 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-04-14 15:58:17,110 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:58:17" (1/1) ... [2025-04-14 15:58:17,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 15:58:17,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 15:58:17,134 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 15:58:17,136 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 15:58:17,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-14 15:58:17,152 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-14 15:58:17,152 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-14 15:58:17,152 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-14 15:58:17,152 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-14 15:58:17,152 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-14 15:58:17,153 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-14 15:58:17,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-14 15:58:17,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-14 15:58:17,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-14 15:58:17,154 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 15:58:17,216 INFO L256 CfgBuilder]: Building ICFG [2025-04-14 15:58:17,217 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-14 15:58:17,353 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-14 15:58:17,354 INFO L307 CfgBuilder]: Performing block encoding [2025-04-14 15:58:17,434 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-14 15:58:17,434 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-14 15:58:17,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 03:58:17 BoogieIcfgContainer [2025-04-14 15:58:17,435 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-04-14 15:58:17,436 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-14 15:58:17,437 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-14 15:58:17,441 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-14 15:58:17,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.04 03:58:16" (1/3) ... [2025-04-14 15:58:17,442 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a2226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 03:58:17, skipping insertion in model container [2025-04-14 15:58:17,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:58:17" (2/3) ... [2025-04-14 15:58:17,443 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a2226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 03:58:17, skipping insertion in model container [2025-04-14 15:58:17,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 03:58:17" (3/3) ... [2025-04-14 15:58:17,444 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-misc-4.wvr.c [2025-04-14 15:58:17,455 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-14 15:58:17,457 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-misc-4.wvr.c that has 4 procedures, 37 locations, 37 edges, 1 initial locations, 2 loop locations, and 1 error locations. [2025-04-14 15:58:17,457 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-14 15:58:17,495 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-04-14 15:58:17,527 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 15:58:17,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-14 15:58:17,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 15:58:17,534 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 15:58:17,538 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 15:58:17,598 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-14 15:58:17,611 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-14 15:58:17,617 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;@2c713ad1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 15:58:17,617 INFO L341 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-04-14 15:58:18,032 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 15:58:18,032 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 15:58:18,032 INFO L139 ounterexampleChecker]: Examining path program with hash -1708913327, occurence #1 [2025-04-14 15:58:18,032 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 15:58:18,032 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 15:58:18,036 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 15:58:18,037 INFO L85 PathProgramCache]: Analyzing trace with hash -814762151, now seen corresponding path program 1 times [2025-04-14 15:58:18,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 15:58:18,042 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142467747] [2025-04-14 15:58:18,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 15:58:18,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 15:58:18,089 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-04-14 15:58:18,119 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-04-14 15:58:18,119 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 15:58:18,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:58:18,236 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 15:58:18,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 15:58:18,236 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142467747] [2025-04-14 15:58:18,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142467747] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 15:58:18,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 15:58:18,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-14 15:58:18,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810048337] [2025-04-14 15:58:18,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 15:58:18,241 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-14 15:58:18,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 15:58:18,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-14 15:58:18,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-14 15:58:18,253 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:58:18,253 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 15:58:18,254 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 15:58:18,254 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:58:18,348 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:58:18,348 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-14 15:58:18,348 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 15:58:18,348 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 15:58:18,349 INFO L139 ounterexampleChecker]: Examining path program with hash 327812175, occurence #1 [2025-04-14 15:58:18,349 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 15:58:18,349 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 15:58:18,350 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 15:58:18,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1886221482, now seen corresponding path program 1 times [2025-04-14 15:58:18,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 15:58:18,350 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923970149] [2025-04-14 15:58:18,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 15:58:18,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 15:58:18,359 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-04-14 15:58:18,371 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-04-14 15:58:18,371 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 15:58:18,371 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:58:18,567 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 15:58:18,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 15:58:18,567 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923970149] [2025-04-14 15:58:18,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923970149] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 15:58:18,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 15:58:18,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 15:58:18,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504389989] [2025-04-14 15:58:18,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 15:58:18,568 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-14 15:58:18,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 15:58:18,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-14 15:58:18,569 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-14 15:58:18,569 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:58:18,569 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 15:58:18,569 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 15:58:18,569 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:58:18,569 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:58:18,957 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:58:18,957 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:58:18,957 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-14 15:58:18,957 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 15:58:18,957 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 15:58:18,958 INFO L139 ounterexampleChecker]: Examining path program with hash -42672271, occurence #1 [2025-04-14 15:58:18,958 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 15:58:18,958 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 15:58:18,958 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 15:58:18,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1731398977, now seen corresponding path program 1 times [2025-04-14 15:58:18,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 15:58:18,958 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510357119] [2025-04-14 15:58:18,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 15:58:18,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 15:58:18,971 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-04-14 15:58:18,981 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-04-14 15:58:18,981 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 15:58:18,982 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:58:19,189 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 15:58:19,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 15:58:19,189 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510357119] [2025-04-14 15:58:19,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510357119] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 15:58:19,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 15:58:19,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-04-14 15:58:19,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807324195] [2025-04-14 15:58:19,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 15:58:19,190 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-14 15:58:19,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 15:58:19,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-14 15:58:19,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-04-14 15:58:19,190 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:58:19,190 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 15:58:19,190 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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 15:58:19,190 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:58:19,190 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:58:19,190 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:58:19,694 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:58:19,694 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:58:19,694 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-14 15:58:19,694 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-14 15:58:19,694 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 15:58:19,694 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 15:58:19,695 INFO L139 ounterexampleChecker]: Examining path program with hash 1008813251, occurence #1 [2025-04-14 15:58:19,695 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 15:58:19,695 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 15:58:19,695 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 15:58:19,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1235937398, now seen corresponding path program 1 times [2025-04-14 15:58:19,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 15:58:19,695 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471813880] [2025-04-14 15:58:19,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 15:58:19,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 15:58:19,701 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-04-14 15:58:19,727 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-04-14 15:58:19,727 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 15:58:19,727 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:58:19,875 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-04-14 15:58:19,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 15:58:19,875 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471813880] [2025-04-14 15:58:19,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471813880] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 15:58:19,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 15:58:19,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 15:58:19,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756149144] [2025-04-14 15:58:19,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 15:58:19,876 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-14 15:58:19,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 15:58:19,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-14 15:58:19,876 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-14 15:58:19,876 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:58:19,876 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 15:58:19,877 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 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 15:58:19,877 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:58:19,877 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:58:19,877 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-14 15:58:19,877 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:58:20,039 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:58:20,040 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:58:20,040 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-14 15:58:20,040 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:20,040 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-14 15:58:20,040 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 15:58:20,040 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 15:58:20,040 INFO L139 ounterexampleChecker]: Examining path program with hash -1139063682, occurence #1 [2025-04-14 15:58:20,040 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 15:58:20,041 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 15:58:20,041 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 15:58:20,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1186825996, now seen corresponding path program 2 times [2025-04-14 15:58:20,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 15:58:20,041 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502584258] [2025-04-14 15:58:20,041 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 15:58:20,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 15:58:20,051 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 95 statements into 2 equivalence classes. [2025-04-14 15:58:20,086 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 95 of 95 statements. [2025-04-14 15:58:20,087 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-14 15:58:20,087 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:58:20,261 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2025-04-14 15:58:20,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 15:58:20,261 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502584258] [2025-04-14 15:58:20,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502584258] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 15:58:20,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 15:58:20,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 15:58:20,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382557130] [2025-04-14 15:58:20,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 15:58:20,262 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-14 15:58:20,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 15:58:20,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-14 15:58:20,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-14 15:58:20,262 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:58:20,262 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 15:58:20,263 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 15:58:20,263 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:58:20,263 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:58:20,263 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-14 15:58:20,263 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:20,263 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:58:20,390 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:58:20,391 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:58:20,391 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-14 15:58:20,391 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:20,391 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:20,391 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-14 15:58:20,391 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 15:58:20,391 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 15:58:20,392 INFO L139 ounterexampleChecker]: Examining path program with hash 1564037164, occurence #1 [2025-04-14 15:58:20,392 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 15:58:20,392 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 15:58:20,392 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 15:58:20,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1904071006, now seen corresponding path program 3 times [2025-04-14 15:58:20,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 15:58:20,392 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423682249] [2025-04-14 15:58:20,392 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-14 15:58:20,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 15:58:20,402 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 94 statements into 6 equivalence classes. [2025-04-14 15:58:20,424 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 85 of 94 statements. [2025-04-14 15:58:20,424 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-04-14 15:58:20,424 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:58:20,557 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-04-14 15:58:20,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 15:58:20,557 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423682249] [2025-04-14 15:58:20,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423682249] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 15:58:20,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 15:58:20,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 15:58:20,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382375904] [2025-04-14 15:58:20,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 15:58:20,557 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-14 15:58:20,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 15:58:20,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-14 15:58:20,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-14 15:58:20,558 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:58:20,558 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 15:58:20,558 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 15:58:20,558 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:58:20,558 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:58:20,558 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-14 15:58:20,558 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:20,558 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:20,558 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:58:20,633 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:58:20,633 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:58:20,633 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-14 15:58:20,633 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:20,633 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:20,634 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:20,634 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-14 15:58:20,634 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 15:58:20,634 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 15:58:20,634 INFO L139 ounterexampleChecker]: Examining path program with hash 2147464916, occurence #1 [2025-04-14 15:58:20,634 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 15:58:20,634 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 15:58:20,635 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 15:58:20,635 INFO L85 PathProgramCache]: Analyzing trace with hash 437959607, now seen corresponding path program 4 times [2025-04-14 15:58:20,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 15:58:20,635 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005142162] [2025-04-14 15:58:20,635 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-14 15:58:20,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 15:58:20,643 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 40 statements into 2 equivalence classes. [2025-04-14 15:58:20,649 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 40 of 40 statements. [2025-04-14 15:58:20,650 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-14 15:58:20,650 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:58:20,826 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 15:58:20,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 15:58:20,827 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005142162] [2025-04-14 15:58:20,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005142162] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 15:58:20,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 15:58:20,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-04-14 15:58:20,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288204339] [2025-04-14 15:58:20,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 15:58:20,827 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-14 15:58:20,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 15:58:20,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-14 15:58:20,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-04-14 15:58:20,827 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:58:20,827 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 15:58:20,828 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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 15:58:20,828 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:58:20,828 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:58:20,828 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-14 15:58:20,828 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:20,828 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:20,828 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:20,828 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:58:21,405 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:58:21,406 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:58:21,406 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-14 15:58:21,406 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:21,406 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:21,406 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 15:58:21,406 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-14 15:58:21,408 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2025-04-14 15:58:21,408 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-04-14 15:58:21,408 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-04-14 15:58:21,408 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-04-14 15:58:21,408 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-04-14 15:58:21,412 INFO L422 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1] [2025-04-14 15:58:21,414 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-14 15:58:21,414 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-14 15:58:21,422 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 15:58:21,422 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 03:58:21 BasicIcfg [2025-04-14 15:58:21,422 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-14 15:58:21,423 INFO L158 Benchmark]: Toolchain (without parser) took 4585.40ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 98.9MB in the beginning and 51.9MB in the end (delta: 46.9MB). Peak memory consumption was 93.2MB. Max. memory is 8.0GB. [2025-04-14 15:58:21,423 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 159.4MB. Free memory is still 86.2MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 15:58:21,423 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.00ms. Allocated memory is still 142.6MB. Free memory was 98.9MB in the beginning and 84.3MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2025-04-14 15:58:21,423 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.34ms. Allocated memory is still 142.6MB. Free memory was 84.3MB in the beginning and 83.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 15:58:21,423 INFO L158 Benchmark]: Boogie Preprocessor took 21.15ms. Allocated memory is still 142.6MB. Free memory was 83.0MB in the beginning and 82.1MB in the end (delta: 866.0kB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 15:58:21,423 INFO L158 Benchmark]: IcfgBuilder took 328.07ms. Allocated memory is still 142.6MB. Free memory was 82.1MB in the beginning and 61.4MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2025-04-14 15:58:21,424 INFO L158 Benchmark]: TraceAbstraction took 3985.70ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 60.5MB in the beginning and 51.9MB in the end (delta: 8.5MB). Peak memory consumption was 51.3MB. Max. memory is 8.0GB. [2025-04-14 15:58:21,426 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 159.4MB. Free memory is still 86.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 224.00ms. Allocated memory is still 142.6MB. Free memory was 98.9MB in the beginning and 84.3MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.34ms. Allocated memory is still 142.6MB. Free memory was 84.3MB in the beginning and 83.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 21.15ms. Allocated memory is still 142.6MB. Free memory was 83.0MB in the beginning and 82.1MB in the end (delta: 866.0kB). There was no memory consumed. Max. memory is 8.0GB. * IcfgBuilder took 328.07ms. Allocated memory is still 142.6MB. Free memory was 82.1MB in the beginning and 61.4MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 3985.70ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 60.5MB in the beginning and 51.9MB in the end (delta: 8.5MB). Peak memory consumption was 51.3MB. 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: 19280, independent: 17555, independent conditional: 16636, independent unconditional: 919, dependent: 1725, dependent conditional: 1701, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18209, independent: 17555, independent conditional: 16636, independent unconditional: 919, dependent: 654, dependent conditional: 630, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 18209, independent: 17555, independent conditional: 16636, independent unconditional: 919, dependent: 654, dependent conditional: 630, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 22098, independent: 17555, independent conditional: 16636, independent unconditional: 919, dependent: 4543, dependent conditional: 4519, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 22098, independent: 17555, independent conditional: 1040, independent unconditional: 16515, dependent: 4543, dependent conditional: 703, dependent unconditional: 3840, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 22098, independent: 17555, independent conditional: 1040, independent unconditional: 16515, dependent: 4543, dependent conditional: 703, dependent unconditional: 3840, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 826, independent: 723, independent conditional: 35, independent unconditional: 688, dependent: 103, dependent conditional: 77, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 826, independent: 686, independent conditional: 0, independent unconditional: 686, dependent: 140, dependent conditional: 0, dependent unconditional: 140, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 140, independent: 37, independent conditional: 35, independent unconditional: 2, dependent: 103, dependent conditional: 77, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 140, independent: 37, independent conditional: 35, independent unconditional: 2, dependent: 103, dependent conditional: 77, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1214, independent: 431, independent conditional: 366, independent unconditional: 65, dependent: 783, dependent conditional: 404, dependent unconditional: 379, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 22098, independent: 16832, independent conditional: 1005, independent unconditional: 15827, dependent: 4440, dependent conditional: 626, dependent unconditional: 3814, unknown: 826, unknown conditional: 112, unknown unconditional: 714] , Statistics on independence cache: Total cache size (in pairs): 826, Positive cache size: 723, Positive conditional cache size: 35, Positive unconditional cache size: 688, Negative cache size: 103, Negative conditional cache size: 77, Negative unconditional cache size: 26, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 19412, Maximal queried relation: 7, Independence queries for same thread: 1071, Persistent sets #1 benchmarks: Persistent set computation time: 0.5s, Number of persistent set computation: 452, Number of trivial persistent sets: 407, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 943, independent: 919, independent conditional: 0, independent unconditional: 919, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 19280, independent: 17555, independent conditional: 16636, independent unconditional: 919, dependent: 1725, dependent conditional: 1701, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18209, independent: 17555, independent conditional: 16636, independent unconditional: 919, dependent: 654, dependent conditional: 630, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 18209, independent: 17555, independent conditional: 16636, independent unconditional: 919, dependent: 654, dependent conditional: 630, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 22098, independent: 17555, independent conditional: 16636, independent unconditional: 919, dependent: 4543, dependent conditional: 4519, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 22098, independent: 17555, independent conditional: 1040, independent unconditional: 16515, dependent: 4543, dependent conditional: 703, dependent unconditional: 3840, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 22098, independent: 17555, independent conditional: 1040, independent unconditional: 16515, dependent: 4543, dependent conditional: 703, dependent unconditional: 3840, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 826, independent: 723, independent conditional: 35, independent unconditional: 688, dependent: 103, dependent conditional: 77, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 826, independent: 686, independent conditional: 0, independent unconditional: 686, dependent: 140, dependent conditional: 0, dependent unconditional: 140, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 140, independent: 37, independent conditional: 35, independent unconditional: 2, dependent: 103, dependent conditional: 77, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 140, independent: 37, independent conditional: 35, independent unconditional: 2, dependent: 103, dependent conditional: 77, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1214, independent: 431, independent conditional: 366, independent unconditional: 65, dependent: 783, dependent conditional: 404, dependent unconditional: 379, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 22098, independent: 16832, independent conditional: 1005, independent unconditional: 15827, dependent: 4440, dependent conditional: 626, dependent unconditional: 3814, unknown: 826, unknown conditional: 112, unknown unconditional: 714] , Statistics on independence cache: Total cache size (in pairs): 826, Positive cache size: 723, Positive conditional cache size: 35, Positive unconditional cache size: 688, Negative cache size: 103, Negative conditional cache size: 77, Negative unconditional cache size: 26, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 19412, Maximal queried relation: 7, Independence queries for same thread: 1071 - PositiveResult [Line: 93]: 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, 60 locations, 67 edges, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 2.3s, 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: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 381 NumberOfCodeBlocks, 372 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 374 ConstructedInterpolants, 0 QuantifiedInterpolants, 761 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 300/300 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 15:58:21,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...