/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/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.automaton.type.used.in.concurrency.analysis PETRI_NET -i ../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-13 19:35:42,688 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-13 19:35:42,745 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2025-04-13 19:35:42,748 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-13 19:35:42,749 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-13 19:35:42,769 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-13 19:35:42,770 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-13 19:35:42,770 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-13 19:35:42,770 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-13 19:35:42,770 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-13 19:35:42,770 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-13 19:35:42,770 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-13 19:35:42,770 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-13 19:35:42,770 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-13 19:35:42,771 INFO L153 SettingsManager]: * Use SBE=true [2025-04-13 19:35:42,771 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-13 19:35:42,771 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-13 19:35:42,771 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-13 19:35:42,771 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-13 19:35:42,771 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-13 19:35:42,771 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-13 19:35:42,771 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-13 19:35:42,771 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-13 19:35:42,771 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-13 19:35:42,771 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-13 19:35:42,771 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-13 19:35:42,771 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-13 19:35:42,771 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-13 19:35:42,771 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-13 19:35:42,771 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 19:35:42,772 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 19:35:42,772 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 19:35:42,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 19:35:42,772 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-13 19:35:42,772 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 19:35:42,772 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 19:35:42,772 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 19:35:42,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 19:35:42,772 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-13 19:35:42,772 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-13 19:35:42,772 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-13 19:35:42,772 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-13 19:35:42,772 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-13 19:35:42,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-13 19:35:42,772 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-13 19:35:42,772 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-13 19:35:42,772 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-13 19:35:42,772 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Automaton type used in concurrency analysis -> PETRI_NET [2025-04-13 19:35:42,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-13 19:35:42,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-13 19:35:42,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-13 19:35:42,970 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-13 19:35:42,972 INFO L274 PluginConnector]: CDTParser initialized [2025-04-13 19:35:42,973 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.i [2025-04-13 19:35:44,297 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/069a7371c/c769af9ebb824cb0a1b76fa05e9b9440/FLAGe65428e50 [2025-04-13 19:35:44,544 INFO L389 CDTParser]: Found 1 translation units. [2025-04-13 19:35:44,544 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.i [2025-04-13 19:35:44,559 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/069a7371c/c769af9ebb824cb0a1b76fa05e9b9440/FLAGe65428e50 [2025-04-13 19:35:45,348 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/069a7371c/c769af9ebb824cb0a1b76fa05e9b9440 [2025-04-13 19:35:45,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-13 19:35:45,351 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-13 19:35:45,352 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-13 19:35:45,352 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-13 19:35:45,358 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-13 19:35:45,359 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 07:35:45" (1/1) ... [2025-04-13 19:35:45,360 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68ba3663 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:45, skipping insertion in model container [2025-04-13 19:35:45,360 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 07:35:45" (1/1) ... [2025-04-13 19:35:45,388 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-13 19:35:45,541 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.i[945,958] [2025-04-13 19:35:45,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 19:35:45,664 INFO L200 MainTranslator]: Completed pre-run [2025-04-13 19:35:45,679 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.i[945,958] [2025-04-13 19:35:45,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 19:35:45,755 INFO L204 MainTranslator]: Completed translation [2025-04-13 19:35:45,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:45 WrapperNode [2025-04-13 19:35:45,757 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-13 19:35:45,757 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-13 19:35:45,758 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-13 19:35:45,758 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-13 19:35:45,762 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:45" (1/1) ... [2025-04-13 19:35:45,776 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:45" (1/1) ... [2025-04-13 19:35:45,796 INFO L138 Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2025-04-13 19:35:45,796 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-13 19:35:45,796 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-13 19:35:45,796 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-13 19:35:45,796 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-13 19:35:45,803 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:45" (1/1) ... [2025-04-13 19:35:45,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:45" (1/1) ... [2025-04-13 19:35:45,806 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:45" (1/1) ... [2025-04-13 19:35:45,818 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-04-13 19:35:45,818 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:45" (1/1) ... [2025-04-13 19:35:45,819 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:45" (1/1) ... [2025-04-13 19:35:45,822 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:45" (1/1) ... [2025-04-13 19:35:45,822 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:45" (1/1) ... [2025-04-13 19:35:45,823 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:45" (1/1) ... [2025-04-13 19:35:45,824 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:45" (1/1) ... [2025-04-13 19:35:45,825 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:45" (1/1) ... [2025-04-13 19:35:45,827 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-13 19:35:45,828 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-13 19:35:45,828 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-13 19:35:45,828 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-13 19:35:45,829 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:45" (1/1) ... [2025-04-13 19:35:45,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 19:35:45,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 19:35:45,853 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) [2025-04-13 19:35:45,855 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 [2025-04-13 19:35:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-13 19:35:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-13 19:35:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-04-13 19:35:45,871 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-04-13 19:35:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-04-13 19:35:45,871 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-04-13 19:35:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-04-13 19:35:45,871 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-04-13 19:35:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-13 19:35:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-13 19:35:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-13 19:35:45,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-13 19:35:45,872 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-13 19:35:45,959 INFO L234 CfgBuilder]: Building ICFG [2025-04-13 19:35:45,960 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-13 19:35:46,045 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-13 19:35:46,046 INFO L289 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-13 19:35:46,046 INFO L294 CfgBuilder]: Performing block encoding [2025-04-13 19:35:46,131 INFO L313 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-13 19:35:46,132 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 07:35:46 BoogieIcfgContainer [2025-04-13 19:35:46,132 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-13 19:35:46,133 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-13 19:35:46,133 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-13 19:35:46,136 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-13 19:35:46,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 07:35:45" (1/3) ... [2025-04-13 19:35:46,137 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c196ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 07:35:46, skipping insertion in model container [2025-04-13 19:35:46,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:45" (2/3) ... [2025-04-13 19:35:46,137 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c196ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 07:35:46, skipping insertion in model container [2025-04-13 19:35:46,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 07:35:46" (3/3) ... [2025-04-13 19:35:46,138 INFO L128 eAbstractionObserver]: Analyzing ICFG safe001_tso.i [2025-04-13 19:35:46,148 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-13 19:35:46,149 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe001_tso.i that has 4 procedures, 35 locations, 31 edges, 1 initial locations, 0 loop locations, and 1 error locations. [2025-04-13 19:35:46,149 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-13 19:35:46,185 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-13 19:35:46,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 34 transitions, 80 flow [2025-04-13 19:35:46,236 INFO L116 PetriNetUnfolderBase]: 0/31 cut-off events. [2025-04-13 19:35:46,241 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-13 19:35:46,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 31 events. 0/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-04-13 19:35:46,242 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 34 transitions, 80 flow [2025-04-13 19:35:46,244 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 30 transitions, 69 flow [2025-04-13 19:35:46,253 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-13 19:35:46,264 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=PETRI_NET, 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;@46d0b773, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-13 19:35:46,264 INFO L341 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-04-13 19:35:46,274 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-13 19:35:46,275 INFO L116 PetriNetUnfolderBase]: 0/28 cut-off events. [2025-04-13 19:35:46,275 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-13 19:35:46,275 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:35:46,275 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 19:35:46,276 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)] === [2025-04-13 19:35:46,280 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:35:46,280 INFO L85 PathProgramCache]: Analyzing trace with hash -908518439, now seen corresponding path program 1 times [2025-04-13 19:35:46,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:35:46,285 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125756058] [2025-04-13 19:35:46,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:35:46,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:35:46,353 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-13 19:35:46,376 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-13 19:35:46,376 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:35:46,376 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:35:46,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:35:46,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:35:46,619 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125756058] [2025-04-13 19:35:46,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125756058] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:35:46,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 19:35:46,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-13 19:35:46,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939430216] [2025-04-13 19:35:46,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:35:46,627 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-13 19:35:46,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:35:46,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-13 19:35:46,647 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-13 19:35:46,658 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 34 [2025-04-13 19:35:46,660 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 30 transitions, 69 flow. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2025-04-13 19:35:46,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:35:46,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 34 [2025-04-13 19:35:46,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:35:46,805 INFO L116 PetriNetUnfolderBase]: 291/539 cut-off events. [2025-04-13 19:35:46,805 INFO L117 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2025-04-13 19:35:46,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1045 conditions, 539 events. 291/539 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2711 event pairs, 58 based on Foata normal form. 27/557 useless extension candidates. Maximal degree in co-relation 1034. Up to 236 conditions per place. [2025-04-13 19:35:46,811 INFO L140 encePairwiseOnDemand]: 28/34 looper letters, 25 selfloop transitions, 5 changer transitions 1/45 dead transitions. [2025-04-13 19:35:46,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 45 transitions, 167 flow [2025-04-13 19:35:46,812 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-13 19:35:46,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-13 19:35:46,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 101 transitions. [2025-04-13 19:35:46,821 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7426470588235294 [2025-04-13 19:35:46,822 INFO L175 Difference]: Start difference. First operand has 40 places, 30 transitions, 69 flow. Second operand 4 states and 101 transitions. [2025-04-13 19:35:46,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 45 transitions, 167 flow [2025-04-13 19:35:46,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 45 transitions, 162 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-04-13 19:35:46,827 INFO L231 Difference]: Finished difference. Result has 42 places, 33 transitions, 100 flow [2025-04-13 19:35:46,828 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=100, PETRI_PLACES=42, PETRI_TRANSITIONS=33} [2025-04-13 19:35:46,831 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 2 predicate places. [2025-04-13 19:35:46,831 INFO L485 AbstractCegarLoop]: Abstraction has has 42 places, 33 transitions, 100 flow [2025-04-13 19:35:46,831 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2025-04-13 19:35:46,831 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:35:46,831 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 19:35:46,831 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-13 19:35:46,831 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)] === [2025-04-13 19:35:46,832 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:35:46,832 INFO L85 PathProgramCache]: Analyzing trace with hash -2142890117, now seen corresponding path program 1 times [2025-04-13 19:35:46,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:35:46,832 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643191092] [2025-04-13 19:35:46,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:35:46,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:35:46,843 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-04-13 19:35:46,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-04-13 19:35:46,854 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:35:46,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:35:46,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:35:46,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:35:46,991 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643191092] [2025-04-13 19:35:46,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643191092] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:35:46,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 19:35:46,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-13 19:35:46,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379823928] [2025-04-13 19:35:46,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:35:46,992 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-13 19:35:46,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:35:46,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-13 19:35:46,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-13 19:35:46,998 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 34 [2025-04-13 19:35:46,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 33 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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) [2025-04-13 19:35:46,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:35:46,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 34 [2025-04-13 19:35:46,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:35:47,124 INFO L116 PetriNetUnfolderBase]: 249/466 cut-off events. [2025-04-13 19:35:47,124 INFO L117 PetriNetUnfolderBase]: For 169/169 co-relation queries the response was YES. [2025-04-13 19:35:47,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1144 conditions, 466 events. 249/466 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2103 event pairs, 15 based on Foata normal form. 26/484 useless extension candidates. Maximal degree in co-relation 1132. Up to 188 conditions per place. [2025-04-13 19:35:47,131 INFO L140 encePairwiseOnDemand]: 28/34 looper letters, 31 selfloop transitions, 8 changer transitions 1/54 dead transitions. [2025-04-13 19:35:47,131 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 54 transitions, 243 flow [2025-04-13 19:35:47,132 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-13 19:35:47,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-13 19:35:47,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 127 transitions. [2025-04-13 19:35:47,133 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7470588235294118 [2025-04-13 19:35:47,133 INFO L175 Difference]: Start difference. First operand has 42 places, 33 transitions, 100 flow. Second operand 5 states and 127 transitions. [2025-04-13 19:35:47,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 54 transitions, 243 flow [2025-04-13 19:35:47,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 54 transitions, 233 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-04-13 19:35:47,136 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 140 flow [2025-04-13 19:35:47,136 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=140, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2025-04-13 19:35:47,136 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 6 predicate places. [2025-04-13 19:35:47,136 INFO L485 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 140 flow [2025-04-13 19:35:47,136 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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) [2025-04-13 19:35:47,136 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:35:47,137 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 19:35:47,137 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-13 19:35:47,137 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)] === [2025-04-13 19:35:47,137 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:35:47,137 INFO L85 PathProgramCache]: Analyzing trace with hash 671472467, now seen corresponding path program 1 times [2025-04-13 19:35:47,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:35:47,137 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676861071] [2025-04-13 19:35:47,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:35:47,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:35:47,147 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-04-13 19:35:47,159 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-04-13 19:35:47,159 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:35:47,159 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:35:47,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:35:47,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:35:47,310 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676861071] [2025-04-13 19:35:47,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676861071] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:35:47,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 19:35:47,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-13 19:35:47,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162623050] [2025-04-13 19:35:47,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:35:47,310 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-13 19:35:47,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:35:47,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-13 19:35:47,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-04-13 19:35:47,317 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 34 [2025-04-13 19:35:47,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 140 flow. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 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) [2025-04-13 19:35:47,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:35:47,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 34 [2025-04-13 19:35:47,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:35:47,450 INFO L116 PetriNetUnfolderBase]: 174/325 cut-off events. [2025-04-13 19:35:47,450 INFO L117 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2025-04-13 19:35:47,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 924 conditions, 325 events. 174/325 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1160 event pairs, 6 based on Foata normal form. 20/337 useless extension candidates. Maximal degree in co-relation 910. Up to 108 conditions per place. [2025-04-13 19:35:47,455 INFO L140 encePairwiseOnDemand]: 28/34 looper letters, 29 selfloop transitions, 11 changer transitions 1/55 dead transitions. [2025-04-13 19:35:47,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 55 transitions, 270 flow [2025-04-13 19:35:47,457 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-13 19:35:47,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-13 19:35:47,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 145 transitions. [2025-04-13 19:35:47,458 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7107843137254902 [2025-04-13 19:35:47,458 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 140 flow. Second operand 6 states and 145 transitions. [2025-04-13 19:35:47,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 55 transitions, 270 flow [2025-04-13 19:35:47,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 55 transitions, 245 flow, removed 4 selfloop flow, removed 4 redundant places. [2025-04-13 19:35:47,462 INFO L231 Difference]: Finished difference. Result has 49 places, 36 transitions, 154 flow [2025-04-13 19:35:47,462 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=154, PETRI_PLACES=49, PETRI_TRANSITIONS=36} [2025-04-13 19:35:47,464 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 9 predicate places. [2025-04-13 19:35:47,464 INFO L485 AbstractCegarLoop]: Abstraction has has 49 places, 36 transitions, 154 flow [2025-04-13 19:35:47,464 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 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) [2025-04-13 19:35:47,464 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:35:47,464 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 19:35:47,464 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-13 19:35:47,464 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)] === [2025-04-13 19:35:47,465 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:35:47,465 INFO L85 PathProgramCache]: Analyzing trace with hash -631221639, now seen corresponding path program 1 times [2025-04-13 19:35:47,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:35:47,465 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269713092] [2025-04-13 19:35:47,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:35:47,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:35:47,475 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-04-13 19:35:47,485 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-04-13 19:35:47,486 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:35:47,486 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:35:47,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:35:47,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:35:47,618 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269713092] [2025-04-13 19:35:47,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269713092] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:35:47,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 19:35:47,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-13 19:35:47,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24590784] [2025-04-13 19:35:47,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:35:47,619 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-13 19:35:47,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:35:47,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-13 19:35:47,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-04-13 19:35:47,631 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 34 [2025-04-13 19:35:47,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 36 transitions, 154 flow. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 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) [2025-04-13 19:35:47,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:35:47,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 34 [2025-04-13 19:35:47,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:35:47,825 INFO L116 PetriNetUnfolderBase]: 695/1377 cut-off events. [2025-04-13 19:35:47,826 INFO L117 PetriNetUnfolderBase]: For 805/817 co-relation queries the response was YES. [2025-04-13 19:35:47,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3288 conditions, 1377 events. 695/1377 cut-off events. For 805/817 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 8399 event pairs, 159 based on Foata normal form. 16/1311 useless extension candidates. Maximal degree in co-relation 3273. Up to 370 conditions per place. [2025-04-13 19:35:47,834 INFO L140 encePairwiseOnDemand]: 25/34 looper letters, 29 selfloop transitions, 6 changer transitions 26/78 dead transitions. [2025-04-13 19:35:47,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 78 transitions, 382 flow [2025-04-13 19:35:47,834 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-13 19:35:47,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-04-13 19:35:47,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 161 transitions. [2025-04-13 19:35:47,835 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6764705882352942 [2025-04-13 19:35:47,836 INFO L175 Difference]: Start difference. First operand has 49 places, 36 transitions, 154 flow. Second operand 7 states and 161 transitions. [2025-04-13 19:35:47,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 78 transitions, 382 flow [2025-04-13 19:35:47,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 78 transitions, 310 flow, removed 18 selfloop flow, removed 8 redundant places. [2025-04-13 19:35:47,846 INFO L231 Difference]: Finished difference. Result has 52 places, 38 transitions, 138 flow [2025-04-13 19:35:47,846 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=138, PETRI_PLACES=52, PETRI_TRANSITIONS=38} [2025-04-13 19:35:47,847 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 12 predicate places. [2025-04-13 19:35:47,847 INFO L485 AbstractCegarLoop]: Abstraction has has 52 places, 38 transitions, 138 flow [2025-04-13 19:35:47,847 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 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) [2025-04-13 19:35:47,847 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:35:47,847 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 19:35:47,848 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-13 19:35:47,848 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)] === [2025-04-13 19:35:47,849 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:35:47,849 INFO L85 PathProgramCache]: Analyzing trace with hash 855653621, now seen corresponding path program 2 times [2025-04-13 19:35:47,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:35:47,849 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117170423] [2025-04-13 19:35:47,850 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 19:35:47,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:35:47,860 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 27 statements into 1 equivalence classes. [2025-04-13 19:35:47,873 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-04-13 19:35:47,873 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 19:35:47,873 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:35:47,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:35:47,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:35:47,997 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117170423] [2025-04-13 19:35:47,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117170423] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:35:47,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 19:35:47,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-13 19:35:47,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553214686] [2025-04-13 19:35:47,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:35:47,997 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-13 19:35:47,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:35:47,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-13 19:35:47,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-04-13 19:35:48,010 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 34 [2025-04-13 19:35:48,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 38 transitions, 138 flow. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 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) [2025-04-13 19:35:48,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:35:48,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 34 [2025-04-13 19:35:48,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:35:48,101 INFO L116 PetriNetUnfolderBase]: 237/519 cut-off events. [2025-04-13 19:35:48,101 INFO L117 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2025-04-13 19:35:48,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1173 conditions, 519 events. 237/519 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2614 event pairs, 26 based on Foata normal form. 8/500 useless extension candidates. Maximal degree in co-relation 1166. Up to 187 conditions per place. [2025-04-13 19:35:48,103 INFO L140 encePairwiseOnDemand]: 26/34 looper letters, 0 selfloop transitions, 0 changer transitions 58/58 dead transitions. [2025-04-13 19:35:48,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 58 transitions, 275 flow [2025-04-13 19:35:48,104 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-13 19:35:48,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-04-13 19:35:48,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 138 transitions. [2025-04-13 19:35:48,105 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5798319327731093 [2025-04-13 19:35:48,106 INFO L175 Difference]: Start difference. First operand has 52 places, 38 transitions, 138 flow. Second operand 7 states and 138 transitions. [2025-04-13 19:35:48,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 58 transitions, 275 flow [2025-04-13 19:35:48,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 58 transitions, 265 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-04-13 19:35:48,108 INFO L231 Difference]: Finished difference. Result has 53 places, 0 transitions, 0 flow [2025-04-13 19:35:48,108 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=53, PETRI_TRANSITIONS=0} [2025-04-13 19:35:48,108 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 13 predicate places. [2025-04-13 19:35:48,108 INFO L485 AbstractCegarLoop]: Abstraction has has 53 places, 0 transitions, 0 flow [2025-04-13 19:35:48,110 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 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) [2025-04-13 19:35:48,112 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2025-04-13 19:35:48,112 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-04-13 19:35:48,113 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-04-13 19:35:48,113 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-04-13 19:35:48,113 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-13 19:35:48,113 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2025-04-13 19:35:48,116 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-13 19:35:48,116 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-13 19:35:48,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 07:35:48 BasicIcfg [2025-04-13 19:35:48,120 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-13 19:35:48,120 INFO L158 Benchmark]: Toolchain (without parser) took 2768.73ms. Allocated memory is still 155.2MB. Free memory was 109.7MB in the beginning and 43.1MB in the end (delta: 66.5MB). Peak memory consumption was 67.7MB. Max. memory is 8.0GB. [2025-04-13 19:35:48,120 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 159.4MB. Free memory is still 84.3MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 19:35:48,120 INFO L158 Benchmark]: CACSL2BoogieTranslator took 404.59ms. Allocated memory is still 155.2MB. Free memory was 109.0MB in the beginning and 86.3MB in the end (delta: 22.8MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2025-04-13 19:35:48,120 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.62ms. Allocated memory is still 155.2MB. Free memory was 86.3MB in the beginning and 84.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 19:35:48,121 INFO L158 Benchmark]: Boogie Preprocessor took 30.81ms. Allocated memory is still 155.2MB. Free memory was 84.4MB in the beginning and 82.1MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-13 19:35:48,121 INFO L158 Benchmark]: RCFGBuilder took 304.06ms. Allocated memory is still 155.2MB. Free memory was 82.1MB in the beginning and 61.1MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2025-04-13 19:35:48,121 INFO L158 Benchmark]: TraceAbstraction took 1986.43ms. Allocated memory is still 155.2MB. Free memory was 60.5MB in the beginning and 43.1MB in the end (delta: 17.3MB). Peak memory consumption was 17.3MB. Max. memory is 8.0GB. [2025-04-13 19:35:48,122 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 159.4MB. Free memory is still 84.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 404.59ms. Allocated memory is still 155.2MB. Free memory was 109.0MB in the beginning and 86.3MB in the end (delta: 22.8MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.62ms. Allocated memory is still 155.2MB. Free memory was 86.3MB in the beginning and 84.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 30.81ms. Allocated memory is still 155.2MB. Free memory was 84.4MB in the beginning and 82.1MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 304.06ms. Allocated memory is still 155.2MB. Free memory was 82.1MB in the beginning and 61.1MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 1986.43ms. Allocated memory is still 155.2MB. Free memory was 60.5MB in the beginning and 43.1MB in the end (delta: 17.3MB). Peak memory consumption was 17.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: 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 with 1 thread instances CFG has 7 procedures, 59 locations, 55 edges, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 188 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 186 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 37 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 315 IncrementalHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 8 mSDtfsCounter, 315 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=154occurred in iteration=3, InterpolantAutomatonStates: 29, 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, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 452 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-13 19:35:48,138 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...