./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe005_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/safe005_tso.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0f4fff0b2b9fbf3a1c21190a7a3a2488ff184faa22678fe9af5f2740e4422fce --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:47:29,800 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:47:29,880 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-06 12:47:29,883 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:47:29,883 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:47:29,911 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:47:29,912 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:47:29,924 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:47:29,924 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:47:29,924 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:47:29,924 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:47:29,924 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:47:29,925 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:47:29,925 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:47:29,925 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:47:29,925 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:47:29,925 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 12:47:29,925 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:47:29,925 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 12:47:29,925 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:47:29,925 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:47:29,925 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:47:29,925 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:47:29,925 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:47:29,925 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:47:29,925 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:47:29,925 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 12:47:29,925 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:47:29,926 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:47:29,926 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:47:29,926 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:47:29,926 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:47:29,926 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:47:29,926 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:47:29,926 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:47:29,926 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:47:29,926 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 12:47:29,926 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 12:47:29,926 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:47:29,926 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:47:29,926 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:47:29,926 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:47:29,926 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f4fff0b2b9fbf3a1c21190a7a3a2488ff184faa22678fe9af5f2740e4422fce [2025-02-06 12:47:30,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:47:30,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:47:30,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:47:30,251 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:47:30,252 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:47:30,252 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe005_tso.i [2025-02-06 12:47:31,625 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1155be85b/9eab71ea5f5d4abd8b188334aac7dec5/FLAG3f3c8b3b3 [2025-02-06 12:47:32,009 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:47:32,010 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe005_tso.i [2025-02-06 12:47:32,021 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1155be85b/9eab71ea5f5d4abd8b188334aac7dec5/FLAG3f3c8b3b3 [2025-02-06 12:47:32,244 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1155be85b/9eab71ea5f5d4abd8b188334aac7dec5 [2025-02-06 12:47:32,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:47:32,248 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:47:32,250 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:47:32,251 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:47:32,259 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:47:32,260 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:47:32" (1/1) ... [2025-02-06 12:47:32,260 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28de40df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:32, skipping insertion in model container [2025-02-06 12:47:32,264 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:47:32" (1/1) ... [2025-02-06 12:47:32,301 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:47:32,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:47:32,544 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 12:47:32,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:47:32,666 INFO L204 MainTranslator]: Completed translation [2025-02-06 12:47:32,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:32 WrapperNode [2025-02-06 12:47:32,668 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:47:32,668 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 12:47:32,668 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 12:47:32,669 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 12:47:32,673 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:32" (1/1) ... [2025-02-06 12:47:32,682 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:32" (1/1) ... [2025-02-06 12:47:32,710 INFO L138 Inliner]: procedures = 175, calls = 44, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2025-02-06 12:47:32,712 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 12:47:32,713 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 12:47:32,713 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 12:47:32,713 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 12:47:32,718 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:32" (1/1) ... [2025-02-06 12:47:32,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:32" (1/1) ... [2025-02-06 12:47:32,727 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:32" (1/1) ... [2025-02-06 12:47:32,744 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]. [2025-02-06 12:47:32,744 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:32" (1/1) ... [2025-02-06 12:47:32,744 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:32" (1/1) ... [2025-02-06 12:47:32,748 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:32" (1/1) ... [2025-02-06 12:47:32,748 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:32" (1/1) ... [2025-02-06 12:47:32,749 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:32" (1/1) ... [2025-02-06 12:47:32,749 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:32" (1/1) ... [2025-02-06 12:47:32,751 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 12:47:32,751 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 12:47:32,751 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 12:47:32,752 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 12:47:32,752 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:32" (1/1) ... [2025-02-06 12:47:32,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:47:32,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:47:32,784 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 12:47:32,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 12:47:32,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 12:47:32,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 12:47:32,806 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-06 12:47:32,806 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-06 12:47:32,806 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-06 12:47:32,806 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-06 12:47:32,807 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-06 12:47:32,807 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-06 12:47:32,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 12:47:32,807 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 12:47:32,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 12:47:32,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 12:47:32,808 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 12:47:32,915 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 12:47:32,924 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 12:47:33,129 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 12:47:33,129 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 12:47:33,254 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 12:47:33,254 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 12:47:33,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:47:33 BoogieIcfgContainer [2025-02-06 12:47:33,254 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 12:47:33,262 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 12:47:33,263 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 12:47:33,278 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 12:47:33,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:47:32" (1/3) ... [2025-02-06 12:47:33,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@169666f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:47:33, skipping insertion in model container [2025-02-06 12:47:33,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:32" (2/3) ... [2025-02-06 12:47:33,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@169666f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:47:33, skipping insertion in model container [2025-02-06 12:47:33,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:47:33" (3/3) ... [2025-02-06 12:47:33,282 INFO L128 eAbstractionObserver]: Analyzing ICFG safe005_tso.i [2025-02-06 12:47:33,296 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 12:47:33,297 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe005_tso.i that has 4 procedures, 43 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-06 12:47:33,298 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 12:47:33,350 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 12:47:33,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 44 transitions, 100 flow [2025-02-06 12:47:33,404 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2025-02-06 12:47:33,405 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:47:33,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 41 events. 2/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2025-02-06 12:47:33,411 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 44 transitions, 100 flow [2025-02-06 12:47:33,413 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 40 transitions, 89 flow [2025-02-06 12:47:33,420 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 12:47:33,437 INFO L333 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=None, 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;@247a8a4f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 12:47:33,437 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-02-06 12:47:33,451 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 12:47:33,451 INFO L124 PetriNetUnfolderBase]: 2/38 cut-off events. [2025-02-06 12:47:33,451 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:47:33,451 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:47:33,452 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:47:33,452 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:47:33,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:47:33,462 INFO L85 PathProgramCache]: Analyzing trace with hash -33813954, now seen corresponding path program 1 times [2025-02-06 12:47:33,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:47:33,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108964304] [2025-02-06 12:47:33,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:47:33,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:47:33,654 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 12:47:33,677 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 12:47:33,677 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:47:33,677 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:47:33,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:47:33,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:47:33,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108964304] [2025-02-06 12:47:33,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108964304] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:47:33,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:47:33,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 12:47:33,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084748244] [2025-02-06 12:47:33,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:47:33,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:47:33,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:47:33,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:47:33,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:47:33,827 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-02-06 12:47:33,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 89 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2025-02-06 12:47:33,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:47:33,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-02-06 12:47:33,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:47:34,864 INFO L124 PetriNetUnfolderBase]: 5627/8717 cut-off events. [2025-02-06 12:47:34,864 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2025-02-06 12:47:34,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16816 conditions, 8717 events. 5627/8717 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 52002 event pairs, 5627 based on Foata normal form. 756/9420 useless extension candidates. Maximal degree in co-relation 16805. Up to 7994 conditions per place. [2025-02-06 12:47:34,909 INFO L140 encePairwiseOnDemand]: 40/44 looper letters, 28 selfloop transitions, 1 changer transitions 1/36 dead transitions. [2025-02-06 12:47:34,909 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 36 transitions, 141 flow [2025-02-06 12:47:34,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:47:34,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:47:34,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2025-02-06 12:47:34,919 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45454545454545453 [2025-02-06 12:47:34,920 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 89 flow. Second operand 3 states and 60 transitions. [2025-02-06 12:47:34,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 36 transitions, 141 flow [2025-02-06 12:47:34,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 36 transitions, 138 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 12:47:34,932 INFO L231 Difference]: Finished difference. Result has 45 places, 35 transitions, 78 flow [2025-02-06 12:47:34,937 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2025-02-06 12:47:34,944 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2025-02-06 12:47:34,944 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 78 flow [2025-02-06 12:47:34,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2025-02-06 12:47:34,944 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:47:34,944 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:47:34,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 12:47:34,944 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:47:34,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:47:34,948 INFO L85 PathProgramCache]: Analyzing trace with hash -33813512, now seen corresponding path program 1 times [2025-02-06 12:47:34,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:47:34,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509726669] [2025-02-06 12:47:34,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:47:34,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:47:34,962 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 12:47:34,999 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 12:47:34,999 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:47:34,999 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:47:35,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:47:35,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:47:35,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509726669] [2025-02-06 12:47:35,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509726669] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:47:35,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:47:35,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:47:35,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830458390] [2025-02-06 12:47:35,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:47:35,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:47:35,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:47:35,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:47:35,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:47:35,336 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-02-06 12:47:35,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 78 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:47:35,337 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:47:35,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-02-06 12:47:35,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:47:36,965 INFO L124 PetriNetUnfolderBase]: 12675/18592 cut-off events. [2025-02-06 12:47:36,966 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:47:36,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36894 conditions, 18592 events. 12675/18592 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 684. Compared 115005 event pairs, 2879 based on Foata normal form. 0/18162 useless extension candidates. Maximal degree in co-relation 36888. Up to 6462 conditions per place. [2025-02-06 12:47:37,029 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 48 selfloop transitions, 6 changer transitions 99/158 dead transitions. [2025-02-06 12:47:37,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 158 transitions, 634 flow [2025-02-06 12:47:37,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 12:47:37,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 12:47:37,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 236 transitions. [2025-02-06 12:47:37,031 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5959595959595959 [2025-02-06 12:47:37,031 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 78 flow. Second operand 9 states and 236 transitions. [2025-02-06 12:47:37,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 158 transitions, 634 flow [2025-02-06 12:47:37,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 158 transitions, 633 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 12:47:37,035 INFO L231 Difference]: Finished difference. Result has 59 places, 38 transitions, 149 flow [2025-02-06 12:47:37,035 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=149, PETRI_PLACES=59, PETRI_TRANSITIONS=38} [2025-02-06 12:47:37,036 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 11 predicate places. [2025-02-06 12:47:37,036 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 38 transitions, 149 flow [2025-02-06 12:47:37,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:47:37,036 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:47:37,036 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:47:37,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 12:47:37,036 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:47:37,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:47:37,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1258495529, now seen corresponding path program 1 times [2025-02-06 12:47:37,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:47:37,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110565672] [2025-02-06 12:47:37,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:47:37,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:47:37,043 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 12:47:37,048 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 12:47:37,048 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:47:37,048 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:47:37,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:47:37,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:47:37,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110565672] [2025-02-06 12:47:37,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110565672] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:47:37,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:47:37,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:47:37,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613447298] [2025-02-06 12:47:37,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:47:37,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:47:37,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:47:37,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:47:37,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:47:37,242 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-02-06 12:47:37,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 38 transitions, 149 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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) [2025-02-06 12:47:37,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:47:37,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-02-06 12:47:37,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:47:38,607 INFO L124 PetriNetUnfolderBase]: 9331/13891 cut-off events. [2025-02-06 12:47:38,608 INFO L125 PetriNetUnfolderBase]: For 13974/13980 co-relation queries the response was YES. [2025-02-06 12:47:38,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37442 conditions, 13891 events. 9331/13891 cut-off events. For 13974/13980 co-relation queries the response was YES. Maximal size of possible extension queue 476. Compared 82640 event pairs, 1294 based on Foata normal form. 360/14240 useless extension candidates. Maximal degree in co-relation 37427. Up to 5495 conditions per place. [2025-02-06 12:47:38,661 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 55 selfloop transitions, 7 changer transitions 87/154 dead transitions. [2025-02-06 12:47:38,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 154 transitions, 841 flow [2025-02-06 12:47:38,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 12:47:38,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 12:47:38,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 235 transitions. [2025-02-06 12:47:38,664 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5340909090909091 [2025-02-06 12:47:38,664 INFO L175 Difference]: Start difference. First operand has 59 places, 38 transitions, 149 flow. Second operand 10 states and 235 transitions. [2025-02-06 12:47:38,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 154 transitions, 841 flow [2025-02-06 12:47:38,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 154 transitions, 771 flow, removed 14 selfloop flow, removed 4 redundant places. [2025-02-06 12:47:38,708 INFO L231 Difference]: Finished difference. Result has 66 places, 40 transitions, 187 flow [2025-02-06 12:47:38,708 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=187, PETRI_PLACES=66, PETRI_TRANSITIONS=40} [2025-02-06 12:47:38,709 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 18 predicate places. [2025-02-06 12:47:38,709 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 40 transitions, 187 flow [2025-02-06 12:47:38,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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) [2025-02-06 12:47:38,709 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:47:38,709 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:47:38,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 12:47:38,710 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:47:38,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:47:38,711 INFO L85 PathProgramCache]: Analyzing trace with hash 2097718870, now seen corresponding path program 1 times [2025-02-06 12:47:38,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:47:38,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549156503] [2025-02-06 12:47:38,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:47:38,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:47:38,718 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 12:47:38,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 12:47:38,726 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:47:38,726 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:47:38,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:47:38,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:47:38,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549156503] [2025-02-06 12:47:38,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549156503] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:47:38,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:47:38,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:47:38,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389966887] [2025-02-06 12:47:38,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:47:38,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:47:38,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:47:38,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:47:38,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:47:38,857 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-02-06 12:47:38,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 40 transitions, 187 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 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) [2025-02-06 12:47:38,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:47:38,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-02-06 12:47:38,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:47:39,613 INFO L124 PetriNetUnfolderBase]: 8273/12509 cut-off events. [2025-02-06 12:47:39,614 INFO L125 PetriNetUnfolderBase]: For 24574/24580 co-relation queries the response was YES. [2025-02-06 12:47:39,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35567 conditions, 12509 events. 8273/12509 cut-off events. For 24574/24580 co-relation queries the response was YES. Maximal size of possible extension queue 380. Compared 74443 event pairs, 3233 based on Foata normal form. 300/12798 useless extension candidates. Maximal degree in co-relation 35545. Up to 7769 conditions per place. [2025-02-06 12:47:39,793 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 44 selfloop transitions, 3 changer transitions 62/114 dead transitions. [2025-02-06 12:47:39,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 114 transitions, 703 flow [2025-02-06 12:47:39,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 12:47:39,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 12:47:39,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 160 transitions. [2025-02-06 12:47:39,794 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5194805194805194 [2025-02-06 12:47:39,794 INFO L175 Difference]: Start difference. First operand has 66 places, 40 transitions, 187 flow. Second operand 7 states and 160 transitions. [2025-02-06 12:47:39,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 114 transitions, 703 flow [2025-02-06 12:47:39,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 114 transitions, 676 flow, removed 12 selfloop flow, removed 5 redundant places. [2025-02-06 12:47:39,913 INFO L231 Difference]: Finished difference. Result has 66 places, 40 transitions, 191 flow [2025-02-06 12:47:39,913 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=191, PETRI_PLACES=66, PETRI_TRANSITIONS=40} [2025-02-06 12:47:39,913 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 18 predicate places. [2025-02-06 12:47:39,913 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 40 transitions, 191 flow [2025-02-06 12:47:39,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 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) [2025-02-06 12:47:39,914 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:47:39,914 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] [2025-02-06 12:47:39,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 12:47:39,914 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:47:39,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:47:39,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1166713677, now seen corresponding path program 1 times [2025-02-06 12:47:39,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:47:39,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610327774] [2025-02-06 12:47:39,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:47:39,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:47:39,919 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 12:47:39,925 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 12:47:39,925 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:47:39,925 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:47:40,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:47:40,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:47:40,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610327774] [2025-02-06 12:47:40,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610327774] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:47:40,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:47:40,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:47:40,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467948659] [2025-02-06 12:47:40,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:47:40,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:47:40,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:47:40,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:47:40,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:47:40,031 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-02-06 12:47:40,032 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 40 transitions, 191 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 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) [2025-02-06 12:47:40,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:47:40,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-02-06 12:47:40,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:47:40,890 INFO L124 PetriNetUnfolderBase]: 11682/17293 cut-off events. [2025-02-06 12:47:40,890 INFO L125 PetriNetUnfolderBase]: For 20735/20735 co-relation queries the response was YES. [2025-02-06 12:47:40,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47506 conditions, 17293 events. 11682/17293 cut-off events. For 20735/20735 co-relation queries the response was YES. Maximal size of possible extension queue 610. Compared 105448 event pairs, 3247 based on Foata normal form. 240/17529 useless extension candidates. Maximal degree in co-relation 47482. Up to 8032 conditions per place. [2025-02-06 12:47:40,948 INFO L140 encePairwiseOnDemand]: 37/44 looper letters, 50 selfloop transitions, 5 changer transitions 49/109 dead transitions. [2025-02-06 12:47:40,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 109 transitions, 673 flow [2025-02-06 12:47:40,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 12:47:40,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 12:47:40,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 147 transitions. [2025-02-06 12:47:40,949 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5568181818181818 [2025-02-06 12:47:40,949 INFO L175 Difference]: Start difference. First operand has 66 places, 40 transitions, 191 flow. Second operand 6 states and 147 transitions. [2025-02-06 12:47:40,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 109 transitions, 673 flow [2025-02-06 12:47:41,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 109 transitions, 631 flow, removed 13 selfloop flow, removed 9 redundant places. [2025-02-06 12:47:41,040 INFO L231 Difference]: Finished difference. Result has 62 places, 42 transitions, 207 flow [2025-02-06 12:47:41,040 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=207, PETRI_PLACES=62, PETRI_TRANSITIONS=42} [2025-02-06 12:47:41,041 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 14 predicate places. [2025-02-06 12:47:41,041 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 42 transitions, 207 flow [2025-02-06 12:47:41,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 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) [2025-02-06 12:47:41,041 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:47:41,041 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] [2025-02-06 12:47:41,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 12:47:41,041 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:47:41,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:47:41,042 INFO L85 PathProgramCache]: Analyzing trace with hash 2022443788, now seen corresponding path program 1 times [2025-02-06 12:47:41,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:47:41,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333335135] [2025-02-06 12:47:41,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:47:41,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:47:41,047 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 12:47:41,051 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 12:47:41,051 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:47:41,051 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:47:41,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:47:41,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:47:41,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333335135] [2025-02-06 12:47:41,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333335135] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:47:41,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:47:41,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 12:47:41,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571367291] [2025-02-06 12:47:41,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:47:41,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 12:47:41,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:47:41,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 12:47:41,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 12:47:41,137 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-02-06 12:47:41,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 42 transitions, 207 flow. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 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) [2025-02-06 12:47:41,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:47:41,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-02-06 12:47:41,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:47:42,339 INFO L124 PetriNetUnfolderBase]: 13285/19700 cut-off events. [2025-02-06 12:47:42,340 INFO L125 PetriNetUnfolderBase]: For 14764/14764 co-relation queries the response was YES. [2025-02-06 12:47:42,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49734 conditions, 19700 events. 13285/19700 cut-off events. For 14764/14764 co-relation queries the response was YES. Maximal size of possible extension queue 709. Compared 120967 event pairs, 2303 based on Foata normal form. 224/19916 useless extension candidates. Maximal degree in co-relation 49713. Up to 4780 conditions per place. [2025-02-06 12:47:42,403 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 70 selfloop transitions, 7 changer transitions 90/172 dead transitions. [2025-02-06 12:47:42,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 172 transitions, 904 flow [2025-02-06 12:47:42,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 12:47:42,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-06 12:47:42,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 263 transitions. [2025-02-06 12:47:42,404 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5433884297520661 [2025-02-06 12:47:42,404 INFO L175 Difference]: Start difference. First operand has 62 places, 42 transitions, 207 flow. Second operand 11 states and 263 transitions. [2025-02-06 12:47:42,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 172 transitions, 904 flow [2025-02-06 12:47:42,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 172 transitions, 849 flow, removed 24 selfloop flow, removed 6 redundant places. [2025-02-06 12:47:42,465 INFO L231 Difference]: Finished difference. Result has 70 places, 39 transitions, 179 flow [2025-02-06 12:47:42,465 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=179, PETRI_PLACES=70, PETRI_TRANSITIONS=39} [2025-02-06 12:47:42,465 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 22 predicate places. [2025-02-06 12:47:42,465 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 39 transitions, 179 flow [2025-02-06 12:47:42,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 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) [2025-02-06 12:47:42,465 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:47:42,466 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] [2025-02-06 12:47:42,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 12:47:42,466 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:47:42,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:47:42,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1697334573, now seen corresponding path program 1 times [2025-02-06 12:47:42,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:47:42,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670638411] [2025-02-06 12:47:42,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:47:42,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:47:42,472 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-06 12:47:42,478 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-06 12:47:42,478 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:47:42,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:47:42,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:47:42,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:47:42,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670638411] [2025-02-06 12:47:42,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670638411] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:47:42,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:47:42,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:47:42,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402626074] [2025-02-06 12:47:42,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:47:42,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:47:42,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:47:42,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:47:42,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:47:42,553 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 44 [2025-02-06 12:47:42,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 39 transitions, 179 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:47:42,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:47:42,554 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 44 [2025-02-06 12:47:42,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:47:43,024 INFO L124 PetriNetUnfolderBase]: 5945/9295 cut-off events. [2025-02-06 12:47:43,025 INFO L125 PetriNetUnfolderBase]: For 7840/7840 co-relation queries the response was YES. [2025-02-06 12:47:43,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22812 conditions, 9295 events. 5945/9295 cut-off events. For 7840/7840 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 56275 event pairs, 865 based on Foata normal form. 478/9770 useless extension candidates. Maximal degree in co-relation 22789. Up to 4879 conditions per place. [2025-02-06 12:47:43,058 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 63 selfloop transitions, 5 changer transitions 7/80 dead transitions. [2025-02-06 12:47:43,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 80 transitions, 525 flow [2025-02-06 12:47:43,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:47:43,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 12:47:43,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 106 transitions. [2025-02-06 12:47:43,060 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6022727272727273 [2025-02-06 12:47:43,060 INFO L175 Difference]: Start difference. First operand has 70 places, 39 transitions, 179 flow. Second operand 4 states and 106 transitions. [2025-02-06 12:47:43,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 80 transitions, 525 flow [2025-02-06 12:47:43,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 80 transitions, 466 flow, removed 12 selfloop flow, removed 10 redundant places. [2025-02-06 12:47:43,092 INFO L231 Difference]: Finished difference. Result has 59 places, 42 transitions, 182 flow [2025-02-06 12:47:43,092 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=182, PETRI_PLACES=59, PETRI_TRANSITIONS=42} [2025-02-06 12:47:43,093 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 11 predicate places. [2025-02-06 12:47:43,094 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 42 transitions, 182 flow [2025-02-06 12:47:43,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:47:43,094 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:47:43,094 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] [2025-02-06 12:47:43,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 12:47:43,094 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:47:43,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:47:43,094 INFO L85 PathProgramCache]: Analyzing trace with hash 453206108, now seen corresponding path program 1 times [2025-02-06 12:47:43,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:47:43,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358128077] [2025-02-06 12:47:43,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:47:43,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:47:43,105 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-06 12:47:43,114 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-06 12:47:43,114 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:47:43,114 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:47:43,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:47:43,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:47:43,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358128077] [2025-02-06 12:47:43,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358128077] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:47:43,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:47:43,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:47:43,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973172149] [2025-02-06 12:47:43,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:47:43,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:47:43,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:47:43,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:47:43,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:47:43,285 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 44 [2025-02-06 12:47:43,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 42 transitions, 182 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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) [2025-02-06 12:47:43,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:47:43,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 44 [2025-02-06 12:47:43,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:47:43,572 INFO L124 PetriNetUnfolderBase]: 3899/6215 cut-off events. [2025-02-06 12:47:43,573 INFO L125 PetriNetUnfolderBase]: For 4119/4119 co-relation queries the response was YES. [2025-02-06 12:47:43,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16508 conditions, 6215 events. 3899/6215 cut-off events. For 4119/4119 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 35031 event pairs, 475 based on Foata normal form. 376/6588 useless extension candidates. Maximal degree in co-relation 16491. Up to 2113 conditions per place. [2025-02-06 12:47:43,592 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 72 selfloop transitions, 8 changer transitions 13/98 dead transitions. [2025-02-06 12:47:43,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 98 transitions, 616 flow [2025-02-06 12:47:43,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 12:47:43,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 12:47:43,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 131 transitions. [2025-02-06 12:47:43,593 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5954545454545455 [2025-02-06 12:47:43,593 INFO L175 Difference]: Start difference. First operand has 59 places, 42 transitions, 182 flow. Second operand 5 states and 131 transitions. [2025-02-06 12:47:43,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 98 transitions, 616 flow [2025-02-06 12:47:43,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 98 transitions, 606 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-02-06 12:47:43,597 INFO L231 Difference]: Finished difference. Result has 63 places, 45 transitions, 222 flow [2025-02-06 12:47:43,597 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=222, PETRI_PLACES=63, PETRI_TRANSITIONS=45} [2025-02-06 12:47:43,597 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 15 predicate places. [2025-02-06 12:47:43,598 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 45 transitions, 222 flow [2025-02-06 12:47:43,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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) [2025-02-06 12:47:43,598 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:47:43,598 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] [2025-02-06 12:47:43,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 12:47:43,598 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:47:43,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:47:43,598 INFO L85 PathProgramCache]: Analyzing trace with hash -213143971, now seen corresponding path program 1 times [2025-02-06 12:47:43,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:47:43,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556860975] [2025-02-06 12:47:43,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:47:43,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:47:43,602 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-02-06 12:47:43,606 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-02-06 12:47:43,606 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:47:43,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:47:43,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:47:43,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:47:43,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556860975] [2025-02-06 12:47:43,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556860975] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:47:43,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:47:43,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:47:43,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584268415] [2025-02-06 12:47:43,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:47:43,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:47:43,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:47:43,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:47:43,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:47:43,697 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 44 [2025-02-06 12:47:43,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 45 transitions, 222 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2025-02-06 12:47:43,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:47:43,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 44 [2025-02-06 12:47:43,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:47:43,879 INFO L124 PetriNetUnfolderBase]: 2381/3793 cut-off events. [2025-02-06 12:47:43,879 INFO L125 PetriNetUnfolderBase]: For 4551/4551 co-relation queries the response was YES. [2025-02-06 12:47:43,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11010 conditions, 3793 events. 2381/3793 cut-off events. For 4551/4551 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 19332 event pairs, 395 based on Foata normal form. 172/3962 useless extension candidates. Maximal degree in co-relation 10991. Up to 1268 conditions per place. [2025-02-06 12:47:43,889 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 62 selfloop transitions, 11 changer transitions 10/88 dead transitions. [2025-02-06 12:47:43,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 88 transitions, 562 flow [2025-02-06 12:47:43,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 12:47:43,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 12:47:43,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 134 transitions. [2025-02-06 12:47:43,890 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5075757575757576 [2025-02-06 12:47:43,890 INFO L175 Difference]: Start difference. First operand has 63 places, 45 transitions, 222 flow. Second operand 6 states and 134 transitions. [2025-02-06 12:47:43,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 88 transitions, 562 flow [2025-02-06 12:47:43,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 88 transitions, 512 flow, removed 13 selfloop flow, removed 7 redundant places. [2025-02-06 12:47:43,902 INFO L231 Difference]: Finished difference. Result has 63 places, 45 transitions, 223 flow [2025-02-06 12:47:43,902 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=223, PETRI_PLACES=63, PETRI_TRANSITIONS=45} [2025-02-06 12:47:43,903 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 15 predicate places. [2025-02-06 12:47:43,903 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 45 transitions, 223 flow [2025-02-06 12:47:43,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2025-02-06 12:47:43,903 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:47:43,903 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, 1, 1, 1, 1] [2025-02-06 12:47:43,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 12:47:43,903 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:47:43,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:47:43,904 INFO L85 PathProgramCache]: Analyzing trace with hash -2137668909, now seen corresponding path program 1 times [2025-02-06 12:47:43,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:47:43,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234303005] [2025-02-06 12:47:43,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:47:43,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:47:43,908 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-02-06 12:47:43,913 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-02-06 12:47:43,914 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:47:43,914 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:47:43,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:47:43,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:47:43,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234303005] [2025-02-06 12:47:43,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234303005] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:47:43,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:47:43,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:47:43,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771940428] [2025-02-06 12:47:43,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:47:43,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:47:43,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:47:43,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:47:43,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:47:43,986 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-02-06 12:47:43,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 45 transitions, 223 flow. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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) [2025-02-06 12:47:43,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:47:43,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-02-06 12:47:43,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:47:44,150 INFO L124 PetriNetUnfolderBase]: 2077/3293 cut-off events. [2025-02-06 12:47:44,152 INFO L125 PetriNetUnfolderBase]: For 4065/4065 co-relation queries the response was YES. [2025-02-06 12:47:44,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9544 conditions, 3293 events. 2077/3293 cut-off events. For 4065/4065 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 16262 event pairs, 977 based on Foata normal form. 8/3298 useless extension candidates. Maximal degree in co-relation 9527. Up to 1626 conditions per place. [2025-02-06 12:47:44,162 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 46 selfloop transitions, 2 changer transitions 22/75 dead transitions. [2025-02-06 12:47:44,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 75 transitions, 499 flow [2025-02-06 12:47:44,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 12:47:44,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 12:47:44,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 102 transitions. [2025-02-06 12:47:44,163 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4636363636363636 [2025-02-06 12:47:44,163 INFO L175 Difference]: Start difference. First operand has 63 places, 45 transitions, 223 flow. Second operand 5 states and 102 transitions. [2025-02-06 12:47:44,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 75 transitions, 499 flow [2025-02-06 12:47:44,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 75 transitions, 390 flow, removed 20 selfloop flow, removed 8 redundant places. [2025-02-06 12:47:44,174 INFO L231 Difference]: Finished difference. Result has 62 places, 42 transitions, 158 flow [2025-02-06 12:47:44,174 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=158, PETRI_PLACES=62, PETRI_TRANSITIONS=42} [2025-02-06 12:47:44,174 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 14 predicate places. [2025-02-06 12:47:44,174 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 42 transitions, 158 flow [2025-02-06 12:47:44,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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) [2025-02-06 12:47:44,174 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:47:44,175 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, 1, 1, 1, 1] [2025-02-06 12:47:44,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 12:47:44,175 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:47:44,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:47:44,175 INFO L85 PathProgramCache]: Analyzing trace with hash -845589409, now seen corresponding path program 2 times [2025-02-06 12:47:44,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:47:44,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636774764] [2025-02-06 12:47:44,176 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:47:44,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:47:44,181 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 31 statements into 1 equivalence classes. [2025-02-06 12:47:44,188 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-02-06 12:47:44,188 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 12:47:44,188 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:47:44,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:47:44,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:47:44,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636774764] [2025-02-06 12:47:44,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636774764] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:47:44,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:47:44,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 12:47:44,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707149777] [2025-02-06 12:47:44,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:47:44,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:47:44,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:47:44,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:47:44,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:47:44,288 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-02-06 12:47:44,288 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 42 transitions, 158 flow. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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) [2025-02-06 12:47:44,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:47:44,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-02-06 12:47:44,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:47:44,437 INFO L124 PetriNetUnfolderBase]: 1005/1571 cut-off events. [2025-02-06 12:47:44,437 INFO L125 PetriNetUnfolderBase]: For 902/902 co-relation queries the response was YES. [2025-02-06 12:47:44,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4002 conditions, 1571 events. 1005/1571 cut-off events. For 902/902 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 6402 event pairs, 314 based on Foata normal form. 8/1578 useless extension candidates. Maximal degree in co-relation 3994. Up to 992 conditions per place. [2025-02-06 12:47:44,441 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 0 selfloop transitions, 0 changer transitions 58/58 dead transitions. [2025-02-06 12:47:44,441 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 58 transitions, 314 flow [2025-02-06 12:47:44,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 12:47:44,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 12:47:44,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 100 transitions. [2025-02-06 12:47:44,442 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3787878787878788 [2025-02-06 12:47:44,442 INFO L175 Difference]: Start difference. First operand has 62 places, 42 transitions, 158 flow. Second operand 6 states and 100 transitions. [2025-02-06 12:47:44,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 58 transitions, 314 flow [2025-02-06 12:47:44,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 58 transitions, 295 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-02-06 12:47:44,443 INFO L231 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow [2025-02-06 12:47:44,443 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=56, PETRI_TRANSITIONS=0} [2025-02-06 12:47:44,445 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 8 predicate places. [2025-02-06 12:47:44,445 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 0 transitions, 0 flow [2025-02-06 12:47:44,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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) [2025-02-06 12:47:44,448 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2025-02-06 12:47:44,448 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2025-02-06 12:47:44,448 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-02-06 12:47:44,448 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-02-06 12:47:44,448 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-02-06 12:47:44,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 12:47:44,448 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:47:44,453 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 12:47:44,453 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 12:47:44,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 12:47:44 BasicIcfg [2025-02-06 12:47:44,458 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 12:47:44,458 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 12:47:44,458 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 12:47:44,458 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 12:47:44,459 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:47:33" (3/4) ... [2025-02-06 12:47:44,461 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 12:47:44,463 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-02-06 12:47:44,463 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-02-06 12:47:44,463 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-02-06 12:47:44,465 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2025-02-06 12:47:44,465 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-02-06 12:47:44,465 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-02-06 12:47:44,465 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-06 12:47:44,520 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 12:47:44,520 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 12:47:44,520 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 12:47:44,521 INFO L158 Benchmark]: Toolchain (without parser) took 12273.29ms. Allocated memory was 167.8MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 122.5MB in the beginning and 738.2MB in the end (delta: -615.7MB). Peak memory consumption was 973.7MB. Max. memory is 16.1GB. [2025-02-06 12:47:44,522 INFO L158 Benchmark]: CDTParser took 0.78ms. Allocated memory is still 201.3MB. Free memory is still 119.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:47:44,522 INFO L158 Benchmark]: CACSL2BoogieTranslator took 417.84ms. Allocated memory is still 167.8MB. Free memory was 122.5MB in the beginning and 102.3MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 12:47:44,522 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.73ms. Allocated memory is still 167.8MB. Free memory was 102.3MB in the beginning and 100.8MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 12:47:44,523 INFO L158 Benchmark]: Boogie Preprocessor took 38.22ms. Allocated memory is still 167.8MB. Free memory was 100.8MB in the beginning and 99.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:47:44,524 INFO L158 Benchmark]: IcfgBuilder took 503.14ms. Allocated memory is still 167.8MB. Free memory was 98.8MB in the beginning and 79.1MB in the end (delta: 19.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 12:47:44,524 INFO L158 Benchmark]: TraceAbstraction took 11195.24ms. Allocated memory was 167.8MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 78.6MB in the beginning and 742.4MB in the end (delta: -663.7MB). Peak memory consumption was 931.8MB. Max. memory is 16.1GB. [2025-02-06 12:47:44,525 INFO L158 Benchmark]: Witness Printer took 62.17ms. Allocated memory is still 1.8GB. Free memory was 742.4MB in the beginning and 738.2MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:47:44,526 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78ms. Allocated memory is still 201.3MB. Free memory is still 119.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 417.84ms. Allocated memory is still 167.8MB. Free memory was 122.5MB in the beginning and 102.3MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.73ms. Allocated memory is still 167.8MB. Free memory was 102.3MB in the beginning and 100.8MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.22ms. Allocated memory is still 167.8MB. Free memory was 100.8MB in the beginning and 99.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 503.14ms. Allocated memory is still 167.8MB. Free memory was 98.8MB in the beginning and 79.1MB in the end (delta: 19.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 11195.24ms. Allocated memory was 167.8MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 78.6MB in the beginning and 742.4MB in the end (delta: -663.7MB). Peak memory consumption was 931.8MB. Max. memory is 16.1GB. * Witness Printer took 62.17ms. Allocated memory is still 1.8GB. Free memory was 742.4MB in the beginning and 738.2MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 778]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 68 locations, 5 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: 11.1s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 9.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 752 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 750 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1868 IncrementalHoareTripleChecker+Invalid, 1904 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 1 mSDtfsCounter, 1868 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=223occurred in iteration=9, InterpolantAutomatonStates: 72, 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: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 245 NumberOfCodeBlocks, 245 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 234 ConstructedInterpolants, 0 QuantifiedInterpolants, 812 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-06 12:47:44,541 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE