/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf -i ../../../trunk/examples/svcomp/weaver/parallel-ticket-8.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-dev-4cc0a57-m [2025-04-14 12:41:51,304 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-14 12:41:51,349 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-14 12:41:51,352 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-14 12:41:51,353 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-14 12:41:51,370 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-14 12:41:51,370 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-14 12:41:51,370 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-14 12:41:51,371 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-14 12:41:51,371 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-14 12:41:51,371 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-14 12:41:51,371 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-14 12:41:51,371 INFO L153 SettingsManager]: * Use SBE=true [2025-04-14 12:41:51,371 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-14 12:41:51,371 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-14 12:41:51,371 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-14 12:41:51,372 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-14 12:41:51,372 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-14 12:41:51,372 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-14 12:41:51,372 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-14 12:41:51,372 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-14 12:41:51,372 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-14 12:41:51,372 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-14 12:41:51,372 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-14 12:41:51,372 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-14 12:41:51,372 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-14 12:41:51,372 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-14 12:41:51,372 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 12:41:51,372 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 12:41:51,372 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 12:41:51,372 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 12:41:51,372 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-14 12:41:51,372 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 12:41:51,373 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 12:41:51,373 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 12:41:51,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 12:41:51,373 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-14 12:41:51,373 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-14 12:41:51,373 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-14 12:41:51,373 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-14 12:41:51,373 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-14 12:41:51,373 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-14 12:41:51,373 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-14 12:41:51,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-14 12:41:51,373 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-14 12:41:51,373 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-14 12:41:51,373 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-14 12:41:51,373 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-14 12:41:51,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-14 12:41:51,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-14 12:41:51,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-14 12:41:51,613 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-14 12:41:51,613 INFO L274 PluginConnector]: CDTParser initialized [2025-04-14 12:41:51,615 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-8.wvr.c [2025-04-14 12:41:52,918 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52c10c869/4d99f717b2f14977b0986135def0b66a/FLAG295daf6f6 [2025-04-14 12:41:53,142 INFO L389 CDTParser]: Found 1 translation units. [2025-04-14 12:41:53,142 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-8.wvr.c [2025-04-14 12:41:53,150 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52c10c869/4d99f717b2f14977b0986135def0b66a/FLAG295daf6f6 [2025-04-14 12:41:53,918 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52c10c869/4d99f717b2f14977b0986135def0b66a [2025-04-14 12:41:53,920 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-14 12:41:53,921 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-14 12:41:53,921 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-14 12:41:53,921 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-14 12:41:53,925 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-14 12:41:53,926 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 12:41:53" (1/1) ... [2025-04-14 12:41:53,926 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a72f586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:41:53, skipping insertion in model container [2025-04-14 12:41:53,926 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 12:41:53" (1/1) ... [2025-04-14 12:41:53,936 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-14 12:41:54,089 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-ticket-8.wvr.c[3446,3459] [2025-04-14 12:41:54,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 12:41:54,110 INFO L200 MainTranslator]: Completed pre-run [2025-04-14 12:41:54,149 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-ticket-8.wvr.c[3446,3459] [2025-04-14 12:41:54,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 12:41:54,159 INFO L204 MainTranslator]: Completed translation [2025-04-14 12:41:54,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:41:54 WrapperNode [2025-04-14 12:41:54,160 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-14 12:41:54,160 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-14 12:41:54,160 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-14 12:41:54,160 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-14 12:41:54,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:41:54" (1/1) ... [2025-04-14 12:41:54,171 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:41:54" (1/1) ... [2025-04-14 12:41:54,199 INFO L138 Inliner]: procedures = 24, calls = 24, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 300 [2025-04-14 12:41:54,200 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-14 12:41:54,200 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-14 12:41:54,200 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-14 12:41:54,200 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-14 12:41:54,205 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:41:54" (1/1) ... [2025-04-14 12:41:54,205 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:41:54" (1/1) ... [2025-04-14 12:41:54,208 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:41:54" (1/1) ... [2025-04-14 12:41:54,208 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:41:54" (1/1) ... [2025-04-14 12:41:54,215 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:41:54" (1/1) ... [2025-04-14 12:41:54,216 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:41:54" (1/1) ... [2025-04-14 12:41:54,222 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:41:54" (1/1) ... [2025-04-14 12:41:54,223 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:41:54" (1/1) ... [2025-04-14 12:41:54,223 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:41:54" (1/1) ... [2025-04-14 12:41:54,226 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-14 12:41:54,227 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-14 12:41:54,227 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-14 12:41:54,227 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-14 12:41:54,228 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:41:54" (1/1) ... [2025-04-14 12:41:54,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 12:41:54,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 12:41:54,256 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-14 12:41:54,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-14 12:41:54,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-14 12:41:54,275 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-14 12:41:54,275 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-14 12:41:54,275 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-14 12:41:54,276 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-14 12:41:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-14 12:41:54,276 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-14 12:41:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-04-14 12:41:54,276 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-04-14 12:41:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-14 12:41:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-04-14 12:41:54,276 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-04-14 12:41:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-04-14 12:41:54,276 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-04-14 12:41:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2025-04-14 12:41:54,276 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2025-04-14 12:41:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2025-04-14 12:41:54,276 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2025-04-14 12:41:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-14 12:41:54,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-14 12:41:54,277 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-14 12:41:54,368 INFO L234 CfgBuilder]: Building ICFG [2025-04-14 12:41:54,369 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-14 12:41:54,651 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-14 12:41:54,652 INFO L283 CfgBuilder]: Performing block encoding [2025-04-14 12:41:54,802 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-14 12:41:54,803 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-14 12:41:54,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 12:41:54 BoogieIcfgContainer [2025-04-14 12:41:54,803 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-14 12:41:54,804 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-14 12:41:54,804 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-14 12:41:54,807 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-14 12:41:54,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.04 12:41:53" (1/3) ... [2025-04-14 12:41:54,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@250579f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 12:41:54, skipping insertion in model container [2025-04-14 12:41:54,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:41:54" (2/3) ... [2025-04-14 12:41:54,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@250579f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 12:41:54, skipping insertion in model container [2025-04-14 12:41:54,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 12:41:54" (3/3) ... [2025-04-14 12:41:54,808 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-ticket-8.wvr.c [2025-04-14 12:41:54,818 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-14 12:41:54,820 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-ticket-8.wvr.c that has 9 procedures, 101 locations, 99 edges, 1 initial locations, 0 loop locations, and 1 error locations. [2025-04-14 12:41:54,820 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-14 12:41:54,897 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2025-04-14 12:41:54,932 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 12:41:54,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-14 12:41:54,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 12:41:54,935 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-14 12:41:54,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-14 12:41:55,014 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-14 12:41:55,025 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-14 12:41:55,031 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;@4f8449ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 12:41:55,031 INFO L341 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-04-14 12:41:56,345 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 6 more)] === [2025-04-14 12:41:56,345 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 12:41:56,345 INFO L139 ounterexampleChecker]: Examining path program with hash 786954976, occurence #1 [2025-04-14 12:41:56,345 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 12:41:56,345 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 12:41:56,348 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 12:41:56,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1133292303, now seen corresponding path program 1 times [2025-04-14 12:41:56,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 12:41:56,354 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192384570] [2025-04-14 12:41:56,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 12:41:56,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 12:41:56,420 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-04-14 12:41:56,449 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-04-14 12:41:56,450 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 12:41:56,450 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:41:56,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 12:41:56,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 12:41:56,669 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192384570] [2025-04-14 12:41:56,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192384570] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 12:41:56,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 12:41:56,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-14 12:41:56,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108737536] [2025-04-14 12:41:56,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 12:41:56,676 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-14 12:41:56,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 12:41:56,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-14 12:41:56,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-14 12:41:56,691 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 12:41:56,692 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 12:41:56,693 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 12:41:56,693 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 12:41:56,810 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 12:41:56,811 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-14 12:41:56,811 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 6 more)] === [2025-04-14 12:41:56,811 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 12:41:56,811 INFO L139 ounterexampleChecker]: Examining path program with hash 1439437336, occurence #1 [2025-04-14 12:41:56,811 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 12:41:56,811 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 12:41:56,812 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 12:41:56,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1985105118, now seen corresponding path program 1 times [2025-04-14 12:41:56,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 12:41:56,812 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310851481] [2025-04-14 12:41:56,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 12:41:56,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 12:41:56,831 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-04-14 12:41:56,841 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-04-14 12:41:56,841 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 12:41:56,841 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 12:41:56,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 12:41:56,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 12:41:56,986 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310851481] [2025-04-14 12:41:56,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310851481] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 12:41:56,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 12:41:56,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-14 12:41:56,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239394393] [2025-04-14 12:41:56,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 12:41:56,987 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-14 12:41:56,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 12:41:56,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-14 12:41:56,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-14 12:41:56,988 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 12:41:56,988 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 12:41:56,988 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 12:41:56,989 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 12:41:56,989 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.