/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline_IcfgBuilder.xml -s ../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.automaton.type.used.in.concurrency.analysis PETRI_NET --preprocessor.replace.while.statements.and.if-then-else.statements false -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-14 00:13:16,428 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-14 00:13:16,488 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 [2025-04-14 00:13:16,493 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-14 00:13:16,493 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-14 00:13:16,516 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-14 00:13:16,516 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-14 00:13:16,516 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-14 00:13:16,516 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-14 00:13:16,517 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-14 00:13:16,517 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-14 00:13:16,517 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-14 00:13:16,517 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-14 00:13:16,517 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-14 00:13:16,517 INFO L153 SettingsManager]: * Use SBE=true [2025-04-14 00:13:16,517 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-14 00:13:16,517 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-14 00:13:16,517 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-14 00:13:16,517 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-14 00:13:16,517 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-14 00:13:16,517 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-14 00:13:16,517 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-14 00:13:16,518 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-14 00:13:16,518 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-14 00:13:16,518 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-14 00:13:16,518 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-14 00:13:16,518 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-14 00:13:16,518 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-14 00:13:16,518 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-14 00:13:16,518 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 00:13:16,518 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 00:13:16,518 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 00:13:16,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:13:16,518 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-14 00:13:16,518 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 00:13:16,518 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 00:13:16,520 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 00:13:16,520 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:13:16,520 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-14 00:13:16,520 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-14 00:13:16,520 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-14 00:13:16,520 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-14 00:13:16,520 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-14 00:13:16,521 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-14 00:13:16,521 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-14 00:13:16,521 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-14 00:13:16,521 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-14 00:13:16,521 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 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false [2025-04-14 00:13:16,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-14 00:13:16,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-14 00:13:16,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-14 00:13:16,778 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-14 00:13:16,779 INFO L274 PluginConnector]: CDTParser initialized [2025-04-14 00:13:16,780 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2025-04-14 00:13:18,285 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f9f4b220/d6a819067e67477f968eee3a5f60d387/FLAGaaa241024 [2025-04-14 00:13:18,598 INFO L389 CDTParser]: Found 1 translation units. [2025-04-14 00:13:18,599 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2025-04-14 00:13:18,610 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f9f4b220/d6a819067e67477f968eee3a5f60d387/FLAGaaa241024 [2025-04-14 00:13:19,335 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f9f4b220/d6a819067e67477f968eee3a5f60d387 [2025-04-14 00:13:19,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-14 00:13:19,339 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-14 00:13:19,340 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-14 00:13:19,340 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-14 00:13:19,344 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-14 00:13:19,346 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 12:13:19" (1/1) ... [2025-04-14 00:13:19,347 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c7956c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:19, skipping insertion in model container [2025-04-14 00:13:19,347 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 12:13:19" (1/1) ... [2025-04-14 00:13:19,383 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-14 00:13:19,591 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i[1103,1116] [2025-04-14 00:13:19,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 00:13:19,755 INFO L200 MainTranslator]: Completed pre-run [2025-04-14 00:13:19,772 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i[1103,1116] [2025-04-14 00:13:19,819 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 00:13:19,858 INFO L204 MainTranslator]: Completed translation [2025-04-14 00:13:19,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:19 WrapperNode [2025-04-14 00:13:19,859 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-14 00:13:19,859 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-14 00:13:19,859 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-14 00:13:19,860 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-14 00:13:19,864 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:19" (1/1) ... [2025-04-14 00:13:19,879 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:19" (1/1) ... [2025-04-14 00:13:19,895 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 45 [2025-04-14 00:13:19,896 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-14 00:13:19,896 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-14 00:13:19,896 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-14 00:13:19,896 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-14 00:13:19,903 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:19" (1/1) ... [2025-04-14 00:13:19,903 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:19" (1/1) ... [2025-04-14 00:13:19,907 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:19" (1/1) ... [2025-04-14 00:13:19,920 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2025-04-14 00:13:19,920 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:19" (1/1) ... [2025-04-14 00:13:19,921 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:19" (1/1) ... [2025-04-14 00:13:19,924 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:19" (1/1) ... [2025-04-14 00:13:19,925 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:19" (1/1) ... [2025-04-14 00:13:19,930 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:19" (1/1) ... [2025-04-14 00:13:19,930 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:19" (1/1) ... [2025-04-14 00:13:19,933 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-14 00:13:19,937 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-04-14 00:13:19,937 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-04-14 00:13:19,937 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-04-14 00:13:19,938 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:19" (1/1) ... [2025-04-14 00:13:19,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:13:19,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 00:13:19,963 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 00:13:19,965 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 00:13:19,986 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-14 00:13:19,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-14 00:13:19,986 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-14 00:13:19,986 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-14 00:13:19,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-14 00:13:19,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-14 00:13:19,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-04-14 00:13:19,986 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-14 00:13:19,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-14 00:13:19,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-14 00:13:19,987 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-14 00:13:20,111 INFO L256 CfgBuilder]: Building ICFG [2025-04-14 00:13:20,114 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-14 00:13:20,240 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-14 00:13:20,241 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-14 00:13:20,241 INFO L318 CfgBuilder]: Performing block encoding [2025-04-14 00:13:20,362 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-14 00:13:20,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 12:13:20 BoogieIcfgContainer [2025-04-14 00:13:20,363 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-04-14 00:13:20,365 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-14 00:13:20,365 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-14 00:13:20,369 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-14 00:13:20,370 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.04 12:13:19" (1/3) ... [2025-04-14 00:13:20,371 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fb8166c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 12:13:20, skipping insertion in model container [2025-04-14 00:13:20,372 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:13:19" (2/3) ... [2025-04-14 00:13:20,372 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fb8166c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 12:13:20, skipping insertion in model container [2025-04-14 00:13:20,372 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 12:13:20" (3/3) ... [2025-04-14 00:13:20,373 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_neg.i [2025-04-14 00:13:20,387 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-14 00:13:20,389 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_19-publish-precision_unknown_2_neg.i that has 2 procedures, 25 locations, 23 edges, 1 initial locations, 0 loop locations, and 1 error locations. [2025-04-14 00:13:20,389 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-14 00:13:20,423 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-04-14 00:13:20,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 24 transitions, 55 flow [2025-04-14 00:13:20,482 INFO L116 PetriNetUnfolderBase]: 0/23 cut-off events. [2025-04-14 00:13:20,485 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-14 00:13:20,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 23 events. 0/23 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-04-14 00:13:20,486 INFO L82 GeneralOperation]: Start removeDead. Operand has 28 places, 24 transitions, 55 flow [2025-04-14 00:13:20,491 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 22 places, 18 transitions, 39 flow [2025-04-14 00:13:20,498 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-14 00:13:20,511 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;@75ffb69a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 00:13:20,512 INFO L341 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-04-14 00:13:20,516 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-14 00:13:20,516 INFO L116 PetriNetUnfolderBase]: 0/7 cut-off events. [2025-04-14 00:13:20,516 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-14 00:13:20,516 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:13:20,517 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-04-14 00:13:20,517 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-14 00:13:20,521 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:13:20,522 INFO L85 PathProgramCache]: Analyzing trace with hash 176365889, now seen corresponding path program 1 times [2025-04-14 00:13:20,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:13:20,529 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145473097] [2025-04-14 00:13:20,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:13:20,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:13:20,614 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-14 00:13:20,635 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-14 00:13:20,635 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:13:20,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:13:20,796 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 00:13:20,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:13:20,797 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145473097] [2025-04-14 00:13:20,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145473097] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:13:20,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:13:20,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-14 00:13:20,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086107261] [2025-04-14 00:13:20,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:13:20,804 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-14 00:13:20,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:13:20,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-14 00:13:20,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-14 00:13:20,833 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2025-04-14 00:13:20,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 00:13:20,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:13:20,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2025-04-14 00:13:20,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:13:20,907 INFO L116 PetriNetUnfolderBase]: 20/67 cut-off events. [2025-04-14 00:13:20,907 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-14 00:13:20,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 67 events. 20/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 136 event pairs, 14 based on Foata normal form. 7/73 useless extension candidates. Maximal degree in co-relation 121. Up to 38 conditions per place. [2025-04-14 00:13:20,909 INFO L140 encePairwiseOnDemand]: 20/24 looper letters, 13 selfloop transitions, 3 changer transitions 0/20 dead transitions. [2025-04-14 00:13:20,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 20 transitions, 75 flow [2025-04-14 00:13:20,911 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 00:13:20,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-14 00:13:20,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 35 transitions. [2025-04-14 00:13:20,919 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.4861111111111111 [2025-04-14 00:13:20,921 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 39 flow. Second operand 3 states and 35 transitions. [2025-04-14 00:13:20,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 20 transitions, 75 flow [2025-04-14 00:13:20,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 20 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-14 00:13:20,926 INFO L231 Difference]: Finished difference. Result has 24 places, 18 transitions, 49 flow [2025-04-14 00:13:20,928 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=49, PETRI_PLACES=24, PETRI_TRANSITIONS=18} [2025-04-14 00:13:20,931 INFO L279 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2025-04-14 00:13:20,931 INFO L485 AbstractCegarLoop]: Abstraction has has 24 places, 18 transitions, 49 flow [2025-04-14 00:13:20,932 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 00:13:20,932 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:13:20,932 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:13:20,932 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-14 00:13:20,932 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-14 00:13:20,932 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:13:20,933 INFO L85 PathProgramCache]: Analyzing trace with hash -811061381, now seen corresponding path program 1 times [2025-04-14 00:13:20,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:13:20,933 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549273008] [2025-04-14 00:13:20,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:13:20,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:13:20,949 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-14 00:13:20,974 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-14 00:13:20,974 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:13:20,974 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:13:21,059 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 00:13:21,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:13:21,060 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549273008] [2025-04-14 00:13:21,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549273008] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:13:21,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:13:21,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-14 00:13:21,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478515084] [2025-04-14 00:13:21,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:13:21,061 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-14 00:13:21,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:13:21,062 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-14 00:13:21,062 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-14 00:13:21,062 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2025-04-14 00:13:21,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 18 transitions, 49 flow. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 00:13:21,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:13:21,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2025-04-14 00:13:21,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:13:21,112 INFO L116 PetriNetUnfolderBase]: 11/45 cut-off events. [2025-04-14 00:13:21,112 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-14 00:13:21,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 45 events. 11/45 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 5 based on Foata normal form. 7/49 useless extension candidates. Maximal degree in co-relation 89. Up to 21 conditions per place. [2025-04-14 00:13:21,113 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 7 selfloop transitions, 3 changer transitions 9/22 dead transitions. [2025-04-14 00:13:21,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 22 transitions, 93 flow [2025-04-14 00:13:21,113 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 00:13:21,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-14 00:13:21,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 39 transitions. [2025-04-14 00:13:21,115 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2025-04-14 00:13:21,115 INFO L175 Difference]: Start difference. First operand has 24 places, 18 transitions, 49 flow. Second operand 3 states and 39 transitions. [2025-04-14 00:13:21,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 22 transitions, 93 flow [2025-04-14 00:13:21,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 22 transitions, 87 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-14 00:13:21,116 INFO L231 Difference]: Finished difference. Result has 24 places, 12 transitions, 36 flow [2025-04-14 00:13:21,116 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=36, PETRI_PLACES=24, PETRI_TRANSITIONS=12} [2025-04-14 00:13:21,116 INFO L279 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2025-04-14 00:13:21,117 INFO L485 AbstractCegarLoop]: Abstraction has has 24 places, 12 transitions, 36 flow [2025-04-14 00:13:21,117 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 00:13:21,117 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:13:21,117 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:13:21,117 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-14 00:13:21,117 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-14 00:13:21,118 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:13:21,118 INFO L85 PathProgramCache]: Analyzing trace with hash 642942046, now seen corresponding path program 1 times [2025-04-14 00:13:21,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:13:21,118 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918759744] [2025-04-14 00:13:21,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:13:21,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:13:21,147 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-04-14 00:13:21,174 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-04-14 00:13:21,175 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:13:21,175 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-14 00:13:21,175 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-14 00:13:21,181 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-04-14 00:13:21,195 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-04-14 00:13:21,195 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:13:21,195 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-14 00:13:21,216 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-14 00:13:21,216 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-14 00:13:21,217 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-04-14 00:13:21,218 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2025-04-14 00:13:21,218 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-14 00:13:21,219 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-04-14 00:13:21,257 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-14 00:13:21,257 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-14 00:13:21,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 12:13:21 BasicIcfg [2025-04-14 00:13:21,266 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-14 00:13:21,267 INFO L158 Benchmark]: Toolchain (without parser) took 1927.65ms. Allocated memory is still 167.8MB. Free memory was 118.0MB in the beginning and 95.2MB in the end (delta: 22.9MB). Peak memory consumption was 24.3MB. Max. memory is 8.0GB. [2025-04-14 00:13:21,267 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 159.4MB. Free memory is still 87.6MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 00:13:21,267 INFO L158 Benchmark]: CACSL2BoogieTranslator took 518.45ms. Allocated memory is still 167.8MB. Free memory was 118.0MB in the beginning and 94.5MB in the end (delta: 23.6MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2025-04-14 00:13:21,267 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.24ms. Allocated memory is still 167.8MB. Free memory was 94.5MB in the beginning and 92.1MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 00:13:21,267 INFO L158 Benchmark]: Boogie Preprocessor took 37.01ms. Allocated memory is still 167.8MB. Free memory was 92.1MB in the beginning and 91.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 00:13:21,268 INFO L158 Benchmark]: IcfgBuilder took 426.04ms. Allocated memory is still 167.8MB. Free memory was 91.1MB in the beginning and 61.9MB in the end (delta: 29.1MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2025-04-14 00:13:21,268 INFO L158 Benchmark]: TraceAbstraction took 901.17ms. Allocated memory is still 167.8MB. Free memory was 61.7MB in the beginning and 95.2MB in the end (delta: -33.5MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 00:13:21,269 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 159.4MB. Free memory is still 87.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 518.45ms. Allocated memory is still 167.8MB. Free memory was 118.0MB in the beginning and 94.5MB in the end (delta: 23.6MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.24ms. Allocated memory is still 167.8MB. Free memory was 94.5MB in the beginning and 92.1MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 37.01ms. Allocated memory is still 167.8MB. Free memory was 92.1MB in the beginning and 91.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. * IcfgBuilder took 426.04ms. Allocated memory is still 167.8MB. Free memory was 91.1MB in the beginning and 61.9MB in the end (delta: 29.1MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * TraceAbstraction took 901.17ms. Allocated memory is still 167.8MB. Free memory was 61.7MB in the beginning and 95.2MB in the end (delta: -33.5MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\at(arg, Pre)={0:0}, glob1=0, id=-1, mutex1={3:0}, mutex2={4:0}] [L687] 1 glob1 = 5 VAL [\at(arg, Pre)={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] [L699] CALL 0 __VERIFIER_assert(!(glob1 == 5)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\at(arg, Pre)={0:0}, \at(cond, Pre)=0, arg={0:0}, cond=0, glob1=5, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 40 locations, 39 edges, 2 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: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47 IncrementalHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 0 mSDtfsCounter, 47 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=1, InterpolantAutomatonStates: 6, 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, 0.2s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 33 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 RESULT: Ultimate proved your program to be incorrect! [2025-04-14 00:13:21,286 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...