/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/pthread-wmm/safe008_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-14 00:08:36,937 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-14 00:08:36,992 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 00:08:36,996 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-14 00:08:36,997 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-14 00:08:37,022 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-14 00:08:37,022 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-14 00:08:37,022 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-14 00:08:37,023 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-14 00:08:37,023 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-14 00:08:37,023 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-14 00:08:37,024 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-14 00:08:37,024 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-14 00:08:37,024 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-14 00:08:37,024 INFO L153 SettingsManager]: * Use SBE=true [2025-04-14 00:08:37,025 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-14 00:08:37,025 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-14 00:08:37,025 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-14 00:08:37,025 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-14 00:08:37,025 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-14 00:08:37,025 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-14 00:08:37,025 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-14 00:08:37,025 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-14 00:08:37,025 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-14 00:08:37,025 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-14 00:08:37,025 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-14 00:08:37,025 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-14 00:08:37,025 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-14 00:08:37,025 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-14 00:08:37,025 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 00:08:37,025 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 00:08:37,026 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 00:08:37,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:08:37,026 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-14 00:08:37,026 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 00:08:37,026 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 00:08:37,026 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 00:08:37,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:08:37,026 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-14 00:08:37,026 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-14 00:08:37,026 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-14 00:08:37,026 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-14 00:08:37,026 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-14 00:08:37,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-14 00:08:37,026 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-14 00:08:37,026 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-14 00:08:37,026 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-14 00:08:37,027 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 00:08:37,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-14 00:08:37,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-14 00:08:37,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-14 00:08:37,285 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-14 00:08:37,286 INFO L274 PluginConnector]: CDTParser initialized [2025-04-14 00:08:37,288 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.i [2025-04-14 00:08:38,559 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c870fc0d2/a6b6c3fef2fc46a1b089023e91c1d56f/FLAGc379e0cec [2025-04-14 00:08:38,836 INFO L389 CDTParser]: Found 1 translation units. [2025-04-14 00:08:38,836 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_tso.i [2025-04-14 00:08:38,851 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c870fc0d2/a6b6c3fef2fc46a1b089023e91c1d56f/FLAGc379e0cec [2025-04-14 00:08:39,559 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c870fc0d2/a6b6c3fef2fc46a1b089023e91c1d56f [2025-04-14 00:08:39,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-14 00:08:39,562 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-14 00:08:39,563 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-14 00:08:39,563 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-14 00:08:39,569 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-14 00:08:39,570 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 12:08:39" (1/1) ... [2025-04-14 00:08:39,570 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a2c8085 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:08:39, skipping insertion in model container [2025-04-14 00:08:39,571 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 12:08:39" (1/1) ... [2025-04-14 00:08:39,596 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-14 00:08:39,750 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/safe008_tso.i[945,958] [2025-04-14 00:08:39,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 00:08:39,895 INFO L200 MainTranslator]: Completed pre-run [2025-04-14 00:08:39,918 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/safe008_tso.i[945,958] [2025-04-14 00:08:39,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 00:08:39,991 INFO L204 MainTranslator]: Completed translation [2025-04-14 00:08:39,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:08:39 WrapperNode [2025-04-14 00:08:39,992 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-14 00:08:39,993 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-14 00:08:39,993 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-14 00:08:39,993 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-14 00:08:39,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:08:39" (1/1) ... [2025-04-14 00:08:40,013 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:08:39" (1/1) ... [2025-04-14 00:08:40,028 INFO L138 Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2025-04-14 00:08:40,030 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-14 00:08:40,031 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-14 00:08:40,031 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-14 00:08:40,031 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-14 00:08:40,036 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:08:39" (1/1) ... [2025-04-14 00:08:40,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:08:39" (1/1) ... [2025-04-14 00:08:40,040 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:08:39" (1/1) ... [2025-04-14 00:08:40,053 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]. [2025-04-14 00:08:40,053 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:08:39" (1/1) ... [2025-04-14 00:08:40,053 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:08:39" (1/1) ... [2025-04-14 00:08:40,056 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:08:39" (1/1) ... [2025-04-14 00:08:40,057 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:08:39" (1/1) ... [2025-04-14 00:08:40,058 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:08:39" (1/1) ... [2025-04-14 00:08:40,058 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:08:39" (1/1) ... [2025-04-14 00:08:40,061 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-14 00:08:40,061 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-04-14 00:08:40,062 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-04-14 00:08:40,062 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-04-14 00:08:40,062 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:08:39" (1/1) ... [2025-04-14 00:08:40,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:08:40,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 00:08:40,089 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 00:08:40,091 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 00:08:40,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-14 00:08:40,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-14 00:08:40,110 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-04-14 00:08:40,110 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-04-14 00:08:40,110 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-04-14 00:08:40,110 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-04-14 00:08:40,110 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-04-14 00:08:40,111 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-04-14 00:08:40,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-14 00:08:40,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-14 00:08:40,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-14 00:08:40,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-14 00:08:40,111 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 00:08:40,189 INFO L256 CfgBuilder]: Building ICFG [2025-04-14 00:08:40,191 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-14 00:08:40,307 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-14 00:08:40,308 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-14 00:08:40,308 INFO L318 CfgBuilder]: Performing block encoding [2025-04-14 00:08:40,427 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-14 00:08:40,428 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 12:08:40 BoogieIcfgContainer [2025-04-14 00:08:40,428 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-04-14 00:08:40,432 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-14 00:08:40,432 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-14 00:08:40,435 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-14 00:08:40,436 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.04 12:08:39" (1/3) ... [2025-04-14 00:08:40,436 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bff46a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 12:08:40, skipping insertion in model container [2025-04-14 00:08:40,436 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:08:39" (2/3) ... [2025-04-14 00:08:40,437 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bff46a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 12:08:40, skipping insertion in model container [2025-04-14 00:08:40,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 12:08:40" (3/3) ... [2025-04-14 00:08:40,437 INFO L128 eAbstractionObserver]: Analyzing ICFG safe008_tso.i [2025-04-14 00:08:40,446 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-14 00:08:40,447 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe008_tso.i that has 4 procedures, 35 locations, 31 edges, 1 initial locations, 0 loop locations, and 1 error locations. [2025-04-14 00:08:40,448 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-14 00:08:40,485 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-14 00:08:40,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 34 transitions, 80 flow [2025-04-14 00:08:40,529 INFO L116 PetriNetUnfolderBase]: 0/31 cut-off events. [2025-04-14 00:08:40,532 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-14 00:08:40,533 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 58 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. [2025-04-14 00:08:40,533 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 34 transitions, 80 flow [2025-04-14 00:08:40,536 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 30 transitions, 69 flow [2025-04-14 00:08:40,542 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-14 00:08:40,550 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;@3294933b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 00:08:40,550 INFO L341 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-04-14 00:08:40,557 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-14 00:08:40,557 INFO L116 PetriNetUnfolderBase]: 0/29 cut-off events. [2025-04-14 00:08:40,557 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-14 00:08:40,557 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:08:40,558 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:08:40,558 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 00:08:40,563 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:08:40,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1068960998, now seen corresponding path program 1 times [2025-04-14 00:08:40,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:08:40,569 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658825950] [2025-04-14 00:08:40,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:08:40,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:08:40,629 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-14 00:08:40,662 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-14 00:08:40,663 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:08:40,663 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:08:40,915 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 00:08:40,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:08:40,916 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658825950] [2025-04-14 00:08:40,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658825950] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:08:40,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:08:40,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-14 00:08:40,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273674903] [2025-04-14 00:08:40,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:08:40,923 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-14 00:08:40,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:08:40,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-14 00:08:40,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-14 00:08:40,941 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 34 [2025-04-14 00:08:40,943 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 30 transitions, 69 flow. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:08:40,943 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:08:40,943 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 34 [2025-04-14 00:08:40,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:08:41,372 INFO L116 PetriNetUnfolderBase]: 3123/4627 cut-off events. [2025-04-14 00:08:41,372 INFO L117 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2025-04-14 00:08:41,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9334 conditions, 4627 events. 3123/4627 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 23979 event pairs, 535 based on Foata normal form. 216/4832 useless extension candidates. Maximal degree in co-relation 9323. Up to 2501 conditions per place. [2025-04-14 00:08:41,403 INFO L140 encePairwiseOnDemand]: 28/34 looper letters, 54 selfloop transitions, 5 changer transitions 1/63 dead transitions. [2025-04-14 00:08:41,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 63 transitions, 261 flow [2025-04-14 00:08:41,405 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 00:08:41,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-14 00:08:41,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 86 transitions. [2025-04-14 00:08:41,416 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6323529411764706 [2025-04-14 00:08:41,417 INFO L175 Difference]: Start difference. First operand has 40 places, 30 transitions, 69 flow. Second operand 4 states and 86 transitions. [2025-04-14 00:08:41,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 63 transitions, 261 flow [2025-04-14 00:08:41,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 63 transitions, 256 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-04-14 00:08:41,427 INFO L231 Difference]: Finished difference. Result has 42 places, 33 transitions, 100 flow [2025-04-14 00:08:41,429 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} [2025-04-14 00:08:41,431 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 2 predicate places. [2025-04-14 00:08:41,431 INFO L485 AbstractCegarLoop]: Abstraction has has 42 places, 33 transitions, 100 flow [2025-04-14 00:08:41,431 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:08:41,431 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:08:41,432 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:08:41,432 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-14 00:08:41,432 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 00:08:41,432 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:08:41,432 INFO L85 PathProgramCache]: Analyzing trace with hash -147716752, now seen corresponding path program 1 times [2025-04-14 00:08:41,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:08:41,432 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009330264] [2025-04-14 00:08:41,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:08:41,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:08:41,444 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-04-14 00:08:41,458 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-04-14 00:08:41,458 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:08:41,458 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:08:41,572 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 00:08:41,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:08:41,572 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009330264] [2025-04-14 00:08:41,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009330264] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:08:41,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:08:41,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 00:08:41,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821711459] [2025-04-14 00:08:41,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:08:41,573 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-14 00:08:41,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:08:41,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-14 00:08:41,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-14 00:08:41,574 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 34 [2025-04-14 00:08:41,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 33 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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 00:08:41,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:08:41,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 34 [2025-04-14 00:08:41,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:08:41,832 INFO L116 PetriNetUnfolderBase]: 1827/2787 cut-off events. [2025-04-14 00:08:41,833 INFO L117 PetriNetUnfolderBase]: For 600/600 co-relation queries the response was YES. [2025-04-14 00:08:41,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6547 conditions, 2787 events. 1827/2787 cut-off events. For 600/600 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 13261 event pairs, 339 based on Foata normal form. 152/2928 useless extension candidates. Maximal degree in co-relation 6535. Up to 960 conditions per place. [2025-04-14 00:08:41,846 INFO L140 encePairwiseOnDemand]: 28/34 looper letters, 69 selfloop transitions, 8 changer transitions 1/81 dead transitions. [2025-04-14 00:08:41,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 81 transitions, 373 flow [2025-04-14 00:08:41,847 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 00:08:41,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-14 00:08:41,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 110 transitions. [2025-04-14 00:08:41,848 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6470588235294118 [2025-04-14 00:08:41,848 INFO L175 Difference]: Start difference. First operand has 42 places, 33 transitions, 100 flow. Second operand 5 states and 110 transitions. [2025-04-14 00:08:41,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 81 transitions, 373 flow [2025-04-14 00:08:41,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 81 transitions, 363 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-04-14 00:08:41,852 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 140 flow [2025-04-14 00:08:41,852 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} [2025-04-14 00:08:41,853 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 6 predicate places. [2025-04-14 00:08:41,853 INFO L485 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 140 flow [2025-04-14 00:08:41,853 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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 00:08:41,853 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:08:41,853 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] [2025-04-14 00:08:41,853 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-14 00:08:41,853 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 00:08:41,854 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:08:41,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1253758320, now seen corresponding path program 1 times [2025-04-14 00:08:41,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:08:41,856 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113459543] [2025-04-14 00:08:41,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:08:41,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:08:41,867 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-04-14 00:08:41,878 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-04-14 00:08:41,879 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:08:41,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:08:41,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:08:41,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:08:41,992 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113459543] [2025-04-14 00:08:41,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113459543] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:08:41,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:08:41,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-14 00:08:41,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416995347] [2025-04-14 00:08:41,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:08:41,992 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-14 00:08:41,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:08:41,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-14 00:08:41,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-04-14 00:08:41,993 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 34 [2025-04-14 00:08:41,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 140 flow. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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 00:08:41,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:08:41,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 34 [2025-04-14 00:08:41,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:08:42,205 INFO L116 PetriNetUnfolderBase]: 1155/1779 cut-off events. [2025-04-14 00:08:42,206 INFO L117 PetriNetUnfolderBase]: For 1138/1138 co-relation queries the response was YES. [2025-04-14 00:08:42,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4503 conditions, 1779 events. 1155/1779 cut-off events. For 1138/1138 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 7867 event pairs, 303 based on Foata normal form. 56/1824 useless extension candidates. Maximal degree in co-relation 4489. Up to 672 conditions per place. [2025-04-14 00:08:42,215 INFO L140 encePairwiseOnDemand]: 28/34 looper letters, 58 selfloop transitions, 11 changer transitions 1/73 dead transitions. [2025-04-14 00:08:42,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 73 transitions, 364 flow [2025-04-14 00:08:42,215 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 00:08:42,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-14 00:08:42,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 108 transitions. [2025-04-14 00:08:42,218 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5294117647058824 [2025-04-14 00:08:42,218 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 140 flow. Second operand 6 states and 108 transitions. [2025-04-14 00:08:42,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 73 transitions, 364 flow [2025-04-14 00:08:42,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 73 transitions, 339 flow, removed 4 selfloop flow, removed 4 redundant places. [2025-04-14 00:08:42,226 INFO L231 Difference]: Finished difference. Result has 49 places, 36 transitions, 154 flow [2025-04-14 00:08:42,226 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} [2025-04-14 00:08:42,227 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 9 predicate places. [2025-04-14 00:08:42,227 INFO L485 AbstractCegarLoop]: Abstraction has has 49 places, 36 transitions, 154 flow [2025-04-14 00:08:42,227 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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 00:08:42,227 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:08:42,227 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] [2025-04-14 00:08:42,227 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-14 00:08:42,227 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 00:08:42,228 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:08:42,228 INFO L85 PathProgramCache]: Analyzing trace with hash 57613674, now seen corresponding path program 1 times [2025-04-14 00:08:42,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:08:42,228 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807520786] [2025-04-14 00:08:42,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:08:42,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:08:42,237 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-04-14 00:08:42,244 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-04-14 00:08:42,244 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:08:42,244 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:08:42,358 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 00:08:42,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:08:42,358 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807520786] [2025-04-14 00:08:42,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807520786] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:08:42,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:08:42,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 00:08:42,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652207110] [2025-04-14 00:08:42,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:08:42,359 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-14 00:08:42,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:08:42,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-14 00:08:42,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-04-14 00:08:42,360 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 34 [2025-04-14 00:08:42,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 36 transitions, 154 flow. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:08:42,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:08:42,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 34 [2025-04-14 00:08:42,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:08:42,609 INFO L116 PetriNetUnfolderBase]: 1891/2923 cut-off events. [2025-04-14 00:08:42,610 INFO L117 PetriNetUnfolderBase]: For 2432/2432 co-relation queries the response was YES. [2025-04-14 00:08:42,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7652 conditions, 2923 events. 1891/2923 cut-off events. For 2432/2432 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 14061 event pairs, 339 based on Foata normal form. 16/2926 useless extension candidates. Maximal degree in co-relation 7637. Up to 1060 conditions per place. [2025-04-14 00:08:42,619 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 44 selfloop transitions, 5 changer transitions 50/102 dead transitions. [2025-04-14 00:08:42,619 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 102 transitions, 654 flow [2025-04-14 00:08:42,619 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-14 00:08:42,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-04-14 00:08:42,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 123 transitions. [2025-04-14 00:08:42,620 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5168067226890757 [2025-04-14 00:08:42,620 INFO L175 Difference]: Start difference. First operand has 49 places, 36 transitions, 154 flow. Second operand 7 states and 123 transitions. [2025-04-14 00:08:42,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 102 transitions, 654 flow [2025-04-14 00:08:42,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 102 transitions, 476 flow, removed 30 selfloop flow, removed 8 redundant places. [2025-04-14 00:08:42,631 INFO L231 Difference]: Finished difference. Result has 51 places, 36 transitions, 120 flow [2025-04-14 00:08:42,631 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=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=120, PETRI_PLACES=51, PETRI_TRANSITIONS=36} [2025-04-14 00:08:42,632 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 11 predicate places. [2025-04-14 00:08:42,632 INFO L485 AbstractCegarLoop]: Abstraction has has 51 places, 36 transitions, 120 flow [2025-04-14 00:08:42,632 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:08:42,635 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:08:42,636 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] [2025-04-14 00:08:42,636 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-14 00:08:42,636 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 00:08:42,636 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:08:42,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1427052550, now seen corresponding path program 2 times [2025-04-14 00:08:42,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:08:42,636 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509571931] [2025-04-14 00:08:42,637 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 00:08:42,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:08:42,642 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 27 statements into 1 equivalence classes. [2025-04-14 00:08:42,648 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-04-14 00:08:42,649 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-14 00:08:42,649 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:08:42,757 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 00:08:42,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:08:42,757 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509571931] [2025-04-14 00:08:42,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509571931] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:08:42,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:08:42,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 00:08:42,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935770359] [2025-04-14 00:08:42,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:08:42,758 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-14 00:08:42,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:08:42,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-14 00:08:42,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-04-14 00:08:42,758 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 34 [2025-04-14 00:08:42,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 36 transitions, 120 flow. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:08:42,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:08:42,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 34 [2025-04-14 00:08:42,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:08:42,860 INFO L116 PetriNetUnfolderBase]: 433/696 cut-off events. [2025-04-14 00:08:42,860 INFO L117 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2025-04-14 00:08:42,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1655 conditions, 696 events. 433/696 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2357 event pairs, 133 based on Foata normal form. 8/703 useless extension candidates. Maximal degree in co-relation 1648. Up to 444 conditions per place. [2025-04-14 00:08:42,862 INFO L140 encePairwiseOnDemand]: 30/34 looper letters, 0 selfloop transitions, 0 changer transitions 47/47 dead transitions. [2025-04-14 00:08:42,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 47 transitions, 234 flow [2025-04-14 00:08:42,863 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 00:08:42,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-14 00:08:42,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 67 transitions. [2025-04-14 00:08:42,864 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.3941176470588235 [2025-04-14 00:08:42,864 INFO L175 Difference]: Start difference. First operand has 51 places, 36 transitions, 120 flow. Second operand 5 states and 67 transitions. [2025-04-14 00:08:42,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 47 transitions, 234 flow [2025-04-14 00:08:42,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 47 transitions, 220 flow, removed 2 selfloop flow, removed 4 redundant places. [2025-04-14 00:08:42,865 INFO L231 Difference]: Finished difference. Result has 48 places, 0 transitions, 0 flow [2025-04-14 00:08:42,865 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=48, PETRI_TRANSITIONS=0} [2025-04-14 00:08:42,865 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 8 predicate places. [2025-04-14 00:08:42,866 INFO L485 AbstractCegarLoop]: Abstraction has has 48 places, 0 transitions, 0 flow [2025-04-14 00:08:42,866 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:08:42,869 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2025-04-14 00:08:42,870 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-04-14 00:08:42,870 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-04-14 00:08:42,870 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-04-14 00:08:42,870 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-14 00:08:42,870 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2025-04-14 00:08:42,873 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-14 00:08:42,873 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-14 00:08:42,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 12:08:42 BasicIcfg [2025-04-14 00:08:42,878 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-14 00:08:42,878 INFO L158 Benchmark]: Toolchain (without parser) took 3316.00ms. Allocated memory was 155.2MB in the beginning and 364.9MB in the end (delta: 209.7MB). Free memory was 106.4MB in the beginning and 300.0MB in the end (delta: -193.6MB). Peak memory consumption was 17.1MB. Max. memory is 8.0GB. [2025-04-14 00:08:42,878 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 159.4MB. Free memory is still 86.8MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 00:08:42,879 INFO L158 Benchmark]: CACSL2BoogieTranslator took 428.91ms. Allocated memory is still 155.2MB. Free memory was 106.4MB in the beginning and 83.0MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2025-04-14 00:08:42,879 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.04ms. Allocated memory is still 155.2MB. Free memory was 83.0MB in the beginning and 81.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 00:08:42,879 INFO L158 Benchmark]: Boogie Preprocessor took 30.35ms. Allocated memory is still 155.2MB. Free memory was 81.4MB in the beginning and 79.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 00:08:42,879 INFO L158 Benchmark]: IcfgBuilder took 366.23ms. Allocated memory is still 155.2MB. Free memory was 79.7MB in the beginning and 56.2MB in the end (delta: 23.5MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2025-04-14 00:08:42,879 INFO L158 Benchmark]: TraceAbstraction took 2445.86ms. Allocated memory was 155.2MB in the beginning and 364.9MB in the end (delta: 209.7MB). Free memory was 55.4MB in the beginning and 300.0MB in the end (delta: -244.6MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 00:08:42,882 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 159.4MB. Free memory is still 86.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 428.91ms. Allocated memory is still 155.2MB. Free memory was 106.4MB in the beginning and 83.0MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.04ms. Allocated memory is still 155.2MB. Free memory was 83.0MB in the beginning and 81.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 30.35ms. Allocated memory is still 155.2MB. Free memory was 81.4MB in the beginning and 79.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 8.0GB. * IcfgBuilder took 366.23ms. Allocated memory is still 155.2MB. Free memory was 79.7MB in the beginning and 56.2MB in the end (delta: 23.5MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * TraceAbstraction took 2445.86ms. Allocated memory was 155.2MB in the beginning and 364.9MB in the end (delta: 209.7MB). Free memory was 55.4MB in the beginning and 300.0MB in the end (delta: -244.6MB). There was no memory consumed. 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: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 314 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 314 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 461 IncrementalHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 0 mSDtfsCounter, 461 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=154occurred in iteration=3, InterpolantAutomatonStates: 27, 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, 0.7s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 458 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! [2025-04-14 00:08:42,896 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...