./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/parallel-barrier.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 48c9605d 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/weaver/parallel-barrier.wvr.c -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 b78dfc9c2705d92d2bcea2c224e1a0e17a9d3d516f404185e5eda6bc0d05a15c --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:36:38,736 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:36:38,793 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:36:38,798 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:36:38,799 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:36:38,813 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:36:38,813 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:36:38,813 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:36:38,814 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:36:38,814 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:36:38,814 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:36:38,814 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:36:38,814 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:36:38,814 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:36:38,815 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:36:38,815 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:36:38,815 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:36:38,816 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:36:38,816 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:36:38,816 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:36:38,816 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:36:38,816 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:36:38,816 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:36:38,816 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:36:38,816 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:36:38,816 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:36:38,816 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:36:38,816 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:36:38,816 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:36:38,817 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:36:38,817 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:36:38,817 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:36:38,817 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:36:38,817 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:36:38,817 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:36:38,817 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:36:38,817 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:36:38,817 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:36:38,817 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:36:38,817 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:36:38,817 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:36:38,817 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:36:38,817 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 -> b78dfc9c2705d92d2bcea2c224e1a0e17a9d3d516f404185e5eda6bc0d05a15c [2025-02-08 08:36:39,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:36:39,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:36:39,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:36:39,044 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:36:39,044 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:36:39,045 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2025-02-08 08:36:40,212 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/aeb053b91/89dab9c1095f41d38268d3895d50331a/FLAG02b43eb82 [2025-02-08 08:36:40,431 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:36:40,432 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2025-02-08 08:36:40,438 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/aeb053b91/89dab9c1095f41d38268d3895d50331a/FLAG02b43eb82 [2025-02-08 08:36:40,788 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/aeb053b91/89dab9c1095f41d38268d3895d50331a [2025-02-08 08:36:40,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:36:40,791 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:36:40,792 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:36:40,792 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:36:40,795 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:36:40,796 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:36:40" (1/1) ... [2025-02-08 08:36:40,797 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4448f301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:36:40, skipping insertion in model container [2025-02-08 08:36:40,797 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:36:40" (1/1) ... [2025-02-08 08:36:40,808 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:36:40,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:36:40,948 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:36:40,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:36:40,983 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:36:40,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:36:40 WrapperNode [2025-02-08 08:36:40,984 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:36:40,985 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:36:40,985 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:36:40,985 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:36:40,989 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:36:40" (1/1) ... [2025-02-08 08:36:40,998 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:36:40" (1/1) ... [2025-02-08 08:36:41,027 INFO L138 Inliner]: procedures = 22, calls = 21, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 212 [2025-02-08 08:36:41,027 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:36:41,028 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:36:41,028 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:36:41,028 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:36:41,034 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:36:40" (1/1) ... [2025-02-08 08:36:41,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:36:40" (1/1) ... [2025-02-08 08:36:41,038 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:36:40" (1/1) ... [2025-02-08 08:36:41,057 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]. [2025-02-08 08:36:41,059 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:36:40" (1/1) ... [2025-02-08 08:36:41,060 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:36:40" (1/1) ... [2025-02-08 08:36:41,065 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:36:40" (1/1) ... [2025-02-08 08:36:41,066 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:36:40" (1/1) ... [2025-02-08 08:36:41,067 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:36:40" (1/1) ... [2025-02-08 08:36:41,072 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:36:40" (1/1) ... [2025-02-08 08:36:41,078 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:36:41,079 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:36:41,079 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:36:41,079 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:36:41,080 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:36:40" (1/1) ... [2025-02-08 08:36:41,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:36:41,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:36:41,104 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) [2025-02-08 08:36:41,106 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 [2025-02-08 08:36:41,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:36:41,123 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 08:36:41,123 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 08:36:41,123 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 08:36:41,123 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 08:36:41,123 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-08 08:36:41,123 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-08 08:36:41,123 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-02-08 08:36:41,123 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-02-08 08:36:41,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 08:36:41,123 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-02-08 08:36:41,124 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-02-08 08:36:41,124 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-02-08 08:36:41,124 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-02-08 08:36:41,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:36:41,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:36:41,125 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 08:36:41,210 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:36:41,212 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:36:41,461 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:36:41,461 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:36:41,569 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:36:41,569 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:36:41,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:36:41 BoogieIcfgContainer [2025-02-08 08:36:41,570 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:36:41,571 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:36:41,571 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:36:41,575 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:36:41,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:36:40" (1/3) ... [2025-02-08 08:36:41,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e57097 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:36:41, skipping insertion in model container [2025-02-08 08:36:41,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:36:40" (2/3) ... [2025-02-08 08:36:41,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e57097 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:36:41, skipping insertion in model container [2025-02-08 08:36:41,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:36:41" (3/3) ... [2025-02-08 08:36:41,577 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-barrier.wvr.c [2025-02-08 08:36:41,590 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:36:41,591 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-barrier.wvr.c that has 7 procedures, 75 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-08 08:36:41,591 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:36:41,670 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2025-02-08 08:36:41,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 84 transitions, 234 flow [2025-02-08 08:36:41,738 INFO L124 PetriNetUnfolderBase]: 4/72 cut-off events. [2025-02-08 08:36:41,739 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-08 08:36:41,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 72 events. 4/72 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 117 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 68. Up to 3 conditions per place. [2025-02-08 08:36:41,745 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 84 transitions, 234 flow [2025-02-08 08:36:41,747 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 71 transitions, 190 flow [2025-02-08 08:36:41,752 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:36:41,759 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;@139d76e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:36:41,759 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2025-02-08 08:36:41,781 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:36:41,781 INFO L124 PetriNetUnfolderBase]: 4/68 cut-off events. [2025-02-08 08:36:41,781 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-08 08:36:41,781 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:41,782 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, 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, 1, 1, 1] [2025-02-08 08:36:41,783 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2025-02-08 08:36:41,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:41,788 INFO L85 PathProgramCache]: Analyzing trace with hash 610143681, now seen corresponding path program 1 times [2025-02-08 08:36:41,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:41,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590048098] [2025-02-08 08:36:41,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:36:41,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:41,899 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-02-08 08:36:41,945 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-02-08 08:36:41,949 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:36:41,949 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:42,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:42,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:42,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590048098] [2025-02-08 08:36:42,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590048098] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:36:42,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:36:42,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:36:42,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405973091] [2025-02-08 08:36:42,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:36:42,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:36:42,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:42,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:36:42,201 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:36:42,202 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 88 [2025-02-08 08:36:42,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 71 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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) [2025-02-08 08:36:42,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:42,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 88 [2025-02-08 08:36:42,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:47,656 INFO L124 PetriNetUnfolderBase]: 90013/113964 cut-off events. [2025-02-08 08:36:47,656 INFO L125 PetriNetUnfolderBase]: For 7469/7469 co-relation queries the response was YES. [2025-02-08 08:36:47,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239389 conditions, 113964 events. 90013/113964 cut-off events. For 7469/7469 co-relation queries the response was YES. Maximal size of possible extension queue 1737. Compared 564419 event pairs, 53048 based on Foata normal form. 1985/113165 useless extension candidates. Maximal degree in co-relation 238400. Up to 76768 conditions per place. [2025-02-08 08:36:48,250 INFO L140 encePairwiseOnDemand]: 82/88 looper letters, 93 selfloop transitions, 4 changer transitions 0/98 dead transitions. [2025-02-08 08:36:48,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 98 transitions, 459 flow [2025-02-08 08:36:48,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:36:48,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:36:48,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 123 transitions. [2025-02-08 08:36:48,259 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4659090909090909 [2025-02-08 08:36:48,260 INFO L175 Difference]: Start difference. First operand has 86 places, 71 transitions, 190 flow. Second operand 3 states and 123 transitions. [2025-02-08 08:36:48,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 98 transitions, 459 flow [2025-02-08 08:36:48,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 98 transitions, 413 flow, removed 0 selfloop flow, removed 12 redundant places. [2025-02-08 08:36:48,856 INFO L231 Difference]: Finished difference. Result has 75 places, 69 transitions, 168 flow [2025-02-08 08:36:48,857 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=75, PETRI_TRANSITIONS=69} [2025-02-08 08:36:48,860 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, -11 predicate places. [2025-02-08 08:36:48,860 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 69 transitions, 168 flow [2025-02-08 08:36:48,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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) [2025-02-08 08:36:48,860 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:48,861 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, 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, 1, 1, 1] [2025-02-08 08:36:48,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 08:36:48,861 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2025-02-08 08:36:48,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:48,862 INFO L85 PathProgramCache]: Analyzing trace with hash -2085569973, now seen corresponding path program 2 times [2025-02-08 08:36:48,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:48,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87426483] [2025-02-08 08:36:48,862 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:36:48,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:48,881 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 65 statements into 1 equivalence classes. [2025-02-08 08:36:48,895 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-02-08 08:36:48,895 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:36:48,895 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:49,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:49,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:49,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87426483] [2025-02-08 08:36:49,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87426483] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:36:49,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:36:49,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:36:49,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901266751] [2025-02-08 08:36:49,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:36:49,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:36:49,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:49,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:36:49,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:36:49,023 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 88 [2025-02-08 08:36:49,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 69 transitions, 168 flow. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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) [2025-02-08 08:36:49,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:49,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 88 [2025-02-08 08:36:49,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:52,859 INFO L124 PetriNetUnfolderBase]: 68959/87699 cut-off events. [2025-02-08 08:36:52,860 INFO L125 PetriNetUnfolderBase]: For 4142/4142 co-relation queries the response was YES. [2025-02-08 08:36:52,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182286 conditions, 87699 events. 68959/87699 cut-off events. For 4142/4142 co-relation queries the response was YES. Maximal size of possible extension queue 1282. Compared 419833 event pairs, 40785 based on Foata normal form. 1544/87308 useless extension candidates. Maximal degree in co-relation 79534. Up to 59185 conditions per place. [2025-02-08 08:36:53,181 INFO L140 encePairwiseOnDemand]: 83/88 looper letters, 92 selfloop transitions, 4 changer transitions 0/97 dead transitions. [2025-02-08 08:36:53,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 97 transitions, 431 flow [2025-02-08 08:36:53,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:36:53,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:36:53,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 121 transitions. [2025-02-08 08:36:53,183 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4583333333333333 [2025-02-08 08:36:53,183 INFO L175 Difference]: Start difference. First operand has 75 places, 69 transitions, 168 flow. Second operand 3 states and 121 transitions. [2025-02-08 08:36:53,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 97 transitions, 431 flow [2025-02-08 08:36:53,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 97 transitions, 419 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 08:36:53,219 INFO L231 Difference]: Finished difference. Result has 76 places, 69 transitions, 174 flow [2025-02-08 08:36:53,219 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=76, PETRI_TRANSITIONS=69} [2025-02-08 08:36:53,220 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, -10 predicate places. [2025-02-08 08:36:53,220 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 69 transitions, 174 flow [2025-02-08 08:36:53,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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) [2025-02-08 08:36:53,220 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:53,220 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, 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, 1, 1, 1] [2025-02-08 08:36:53,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 08:36:53,221 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2025-02-08 08:36:53,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:53,221 INFO L85 PathProgramCache]: Analyzing trace with hash -2018193895, now seen corresponding path program 3 times [2025-02-08 08:36:53,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:53,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931676439] [2025-02-08 08:36:53,221 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:36:53,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:53,232 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 65 statements into 1 equivalence classes. [2025-02-08 08:36:53,260 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-02-08 08:36:53,260 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 08:36:53,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:54,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:54,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:54,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931676439] [2025-02-08 08:36:54,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931676439] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:36:54,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:36:54,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2025-02-08 08:36:54,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444067176] [2025-02-08 08:36:54,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:36:54,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-02-08 08:36:54,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:54,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-02-08 08:36:54,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2025-02-08 08:36:54,095 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 88 [2025-02-08 08:36:54,096 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 69 transitions, 174 flow. Second operand has 21 states, 21 states have (on average 11.047619047619047) internal successors, (232), 21 states have internal predecessors, (232), 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) [2025-02-08 08:36:54,096 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:54,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 88 [2025-02-08 08:36:54,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:37:01,751 INFO L124 PetriNetUnfolderBase]: 93797/119352 cut-off events. [2025-02-08 08:37:01,752 INFO L125 PetriNetUnfolderBase]: For 6830/6830 co-relation queries the response was YES. [2025-02-08 08:37:01,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252143 conditions, 119352 events. 93797/119352 cut-off events. For 6830/6830 co-relation queries the response was YES. Maximal size of possible extension queue 1516. Compared 587959 event pairs, 9219 based on Foata normal form. 2/116520 useless extension candidates. Maximal degree in co-relation 112217. Up to 69520 conditions per place. [2025-02-08 08:37:02,150 INFO L140 encePairwiseOnDemand]: 65/88 looper letters, 576 selfloop transitions, 191 changer transitions 58/826 dead transitions. [2025-02-08 08:37:02,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 826 transitions, 3603 flow [2025-02-08 08:37:02,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-02-08 08:37:02,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2025-02-08 08:37:02,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 1315 transitions. [2025-02-08 08:37:02,156 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.24497019374068554 [2025-02-08 08:37:02,156 INFO L175 Difference]: Start difference. First operand has 76 places, 69 transitions, 174 flow. Second operand 61 states and 1315 transitions. [2025-02-08 08:37:02,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 826 transitions, 3603 flow [2025-02-08 08:37:02,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 826 transitions, 3555 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 08:37:02,292 INFO L231 Difference]: Finished difference. Result has 165 places, 263 transitions, 1235 flow [2025-02-08 08:37:02,292 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=1235, PETRI_PLACES=165, PETRI_TRANSITIONS=263} [2025-02-08 08:37:02,293 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, 79 predicate places. [2025-02-08 08:37:02,293 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 263 transitions, 1235 flow [2025-02-08 08:37:02,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 11.047619047619047) internal successors, (232), 21 states have internal predecessors, (232), 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) [2025-02-08 08:37:02,293 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:37:02,293 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, 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, 1, 1, 1] [2025-02-08 08:37:02,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 08:37:02,294 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2025-02-08 08:37:02,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:37:02,294 INFO L85 PathProgramCache]: Analyzing trace with hash 635457661, now seen corresponding path program 4 times [2025-02-08 08:37:02,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:37:02,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792861890] [2025-02-08 08:37:02,294 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:37:02,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:37:02,303 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 65 statements into 2 equivalence classes. [2025-02-08 08:37:02,315 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 65 of 65 statements. [2025-02-08 08:37:02,315 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:37:02,315 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:37:02,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:37:02,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:37:02,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792861890] [2025-02-08 08:37:02,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792861890] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:37:02,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:37:02,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:37:02,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456964490] [2025-02-08 08:37:02,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:37:02,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:37:02,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:37:02,375 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:37:02,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:37:02,375 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 88 [2025-02-08 08:37:02,375 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 263 transitions, 1235 flow. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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) [2025-02-08 08:37:02,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:37:02,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 88 [2025-02-08 08:37:02,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:37:08,791 INFO L124 PetriNetUnfolderBase]: 75447/96421 cut-off events. [2025-02-08 08:37:08,791 INFO L125 PetriNetUnfolderBase]: For 265479/265479 co-relation queries the response was YES. [2025-02-08 08:37:09,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305693 conditions, 96421 events. 75447/96421 cut-off events. For 265479/265479 co-relation queries the response was YES. Maximal size of possible extension queue 1213. Compared 470888 event pairs, 33785 based on Foata normal form. 1422/95428 useless extension candidates. Maximal degree in co-relation 305652. Up to 61919 conditions per place. [2025-02-08 08:37:09,489 INFO L140 encePairwiseOnDemand]: 83/88 looper letters, 352 selfloop transitions, 5 changer transitions 0/358 dead transitions. [2025-02-08 08:37:09,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 358 transitions, 2407 flow [2025-02-08 08:37:09,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:37:09,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:37:09,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 123 transitions. [2025-02-08 08:37:09,490 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4659090909090909 [2025-02-08 08:37:09,490 INFO L175 Difference]: Start difference. First operand has 165 places, 263 transitions, 1235 flow. Second operand 3 states and 123 transitions. [2025-02-08 08:37:09,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 358 transitions, 2407 flow [2025-02-08 08:37:10,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 358 transitions, 2391 flow, removed 7 selfloop flow, removed 2 redundant places. [2025-02-08 08:37:10,167 INFO L231 Difference]: Finished difference. Result has 164 places, 262 transitions, 1244 flow [2025-02-08 08:37:10,168 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=1219, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1244, PETRI_PLACES=164, PETRI_TRANSITIONS=262} [2025-02-08 08:37:10,168 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, 78 predicate places. [2025-02-08 08:37:10,168 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 262 transitions, 1244 flow [2025-02-08 08:37:10,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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) [2025-02-08 08:37:10,169 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:37:10,169 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, 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, 1, 1, 1] [2025-02-08 08:37:10,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 08:37:10,169 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 9 more)] === [2025-02-08 08:37:10,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:37:10,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1678373541, now seen corresponding path program 5 times [2025-02-08 08:37:10,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:37:10,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878535814] [2025-02-08 08:37:10,170 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:37:10,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:37:10,176 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 65 statements into 1 equivalence classes. [2025-02-08 08:37:10,183 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-02-08 08:37:10,183 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:37:10,183 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:37:10,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:37:10,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:37:10,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878535814] [2025-02-08 08:37:10,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878535814] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:37:10,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:37:10,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2025-02-08 08:37:10,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918845302] [2025-02-08 08:37:10,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:37:10,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-02-08 08:37:10,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:37:10,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-02-08 08:37:10,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2025-02-08 08:37:10,741 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 88 [2025-02-08 08:37:10,741 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 262 transitions, 1244 flow. Second operand has 22 states, 22 states have (on average 10.909090909090908) internal successors, (240), 22 states have internal predecessors, (240), 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) [2025-02-08 08:37:10,741 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:37:10,741 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 88 [2025-02-08 08:37:10,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand