./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe001_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/safe001_tso.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 d13e05ad1104a4a5317ff09857a34619cbd86966f0892caf9775309ccc15230d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 17:58:21,475 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 17:58:21,526 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-10 17:58:21,530 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 17:58:21,531 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 17:58:21,554 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 17:58:21,555 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 17:58:21,555 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 17:58:21,555 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 17:58:21,555 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 17:58:21,556 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 17:58:21,556 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 17:58:21,556 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 17:58:21,556 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 17:58:21,557 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 17:58:21,557 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 17:58:21,560 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 17:58:21,561 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 17:58:21,561 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 17:58:21,562 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 17:58:21,562 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-10 17:58:21,562 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-10 17:58:21,563 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-10 17:58:21,563 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 17:58:21,563 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 17:58:21,563 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 17:58:21,563 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 17:58:21,564 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 17:58:21,564 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 17:58:21,564 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 17:58:21,564 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 17:58:21,564 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 17:58:21,564 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 17:58:21,565 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 17:58:21,565 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 17:58:21,565 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 17:58:21,565 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 17:58:21,566 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 17:58:21,566 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 17:58:21,566 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 17:58:21,567 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 17:58:21,567 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 17:58:21,567 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d13e05ad1104a4a5317ff09857a34619cbd86966f0892caf9775309ccc15230d [2024-11-10 17:58:21,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 17:58:21,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 17:58:21,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 17:58:21,762 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 17:58:21,763 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 17:58:21,763 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe001_tso.i [2024-11-10 17:58:23,048 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 17:58:23,230 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 17:58:23,231 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe001_tso.i [2024-11-10 17:58:23,241 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aae02d722/01b0fe84a31b4e458cc142e1b5349879/FLAG4eb7390cf [2024-11-10 17:58:23,252 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aae02d722/01b0fe84a31b4e458cc142e1b5349879 [2024-11-10 17:58:23,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 17:58:23,255 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 17:58:23,256 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 17:58:23,256 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 17:58:23,263 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 17:58:23,263 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:58:23" (1/1) ... [2024-11-10 17:58:23,264 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@727bbb6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:58:23, skipping insertion in model container [2024-11-10 17:58:23,264 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:58:23" (1/1) ... [2024-11-10 17:58:23,292 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 17:58:23,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 17:58:23,582 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 17:58:23,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 17:58:23,654 INFO L204 MainTranslator]: Completed translation [2024-11-10 17:58:23,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:58:23 WrapperNode [2024-11-10 17:58:23,654 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 17:58:23,655 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 17:58:23,655 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 17:58:23,656 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 17:58:23,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:58:23" (1/1) ... [2024-11-10 17:58:23,672 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:58:23" (1/1) ... [2024-11-10 17:58:23,691 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2024-11-10 17:58:23,691 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 17:58:23,693 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 17:58:23,693 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 17:58:23,693 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 17:58:23,700 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:58:23" (1/1) ... [2024-11-10 17:58:23,701 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:58:23" (1/1) ... [2024-11-10 17:58:23,708 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:58:23" (1/1) ... [2024-11-10 17:58:23,722 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]. [2024-11-10 17:58:23,724 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:58:23" (1/1) ... [2024-11-10 17:58:23,724 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:58:23" (1/1) ... [2024-11-10 17:58:23,729 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:58:23" (1/1) ... [2024-11-10 17:58:23,732 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:58:23" (1/1) ... [2024-11-10 17:58:23,733 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:58:23" (1/1) ... [2024-11-10 17:58:23,734 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:58:23" (1/1) ... [2024-11-10 17:58:23,738 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 17:58:23,739 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 17:58:23,739 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 17:58:23,739 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 17:58:23,740 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:58:23" (1/1) ... [2024-11-10 17:58:23,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 17:58:23,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 17:58:23,775 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 17:58:23,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 17:58:23,816 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-10 17:58:23,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 17:58:23,816 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-10 17:58:23,816 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-10 17:58:23,816 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-10 17:58:23,817 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-10 17:58:23,817 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-10 17:58:23,817 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-10 17:58:23,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 17:58:23,817 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-10 17:58:23,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 17:58:23,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 17:58:23,819 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 17:58:23,923 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 17:58:23,925 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 17:58:24,054 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 17:58:24,055 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 17:58:24,115 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 17:58:24,116 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 17:58:24,116 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 05:58:24 BoogieIcfgContainer [2024-11-10 17:58:24,116 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 17:58:24,118 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 17:58:24,118 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 17:58:24,120 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 17:58:24,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 05:58:23" (1/3) ... [2024-11-10 17:58:24,121 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3329fe68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:58:24, skipping insertion in model container [2024-11-10 17:58:24,121 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:58:23" (2/3) ... [2024-11-10 17:58:24,121 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3329fe68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:58:24, skipping insertion in model container [2024-11-10 17:58:24,121 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 05:58:24" (3/3) ... [2024-11-10 17:58:24,122 INFO L112 eAbstractionObserver]: Analyzing ICFG safe001_tso.i [2024-11-10 17:58:24,134 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 17:58:24,135 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 17:58:24,135 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 17:58:24,178 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 17:58:24,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 43 transitions, 98 flow [2024-11-10 17:58:24,234 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2024-11-10 17:58:24,234 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 17:58:24,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 40 events. 2/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2024-11-10 17:58:24,239 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 43 transitions, 98 flow [2024-11-10 17:58:24,241 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 39 transitions, 87 flow [2024-11-10 17:58:24,253 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 17:58:24,259 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;@660b6c2e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 17:58:24,260 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-10 17:58:24,272 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 17:58:24,273 INFO L124 PetriNetUnfolderBase]: 2/37 cut-off events. [2024-11-10 17:58:24,273 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 17:58:24,273 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:58:24,274 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:58:24,274 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)] === [2024-11-10 17:58:24,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:58:24,278 INFO L85 PathProgramCache]: Analyzing trace with hash 849277574, now seen corresponding path program 1 times [2024-11-10 17:58:24,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:58:24,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901585572] [2024-11-10 17:58:24,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:58:24,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:58:24,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:58:24,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:58:24,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:58:24,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901585572] [2024-11-10 17:58:24,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901585572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:58:24,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:58:24,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 17:58:24,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907250366] [2024-11-10 17:58:24,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:58:24,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 17:58:24,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:58:24,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 17:58:24,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:58:24,535 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-11-10 17:58:24,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 87 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) [2024-11-10 17:58:24,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:58:24,537 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-11-10 17:58:24,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:58:25,078 INFO L124 PetriNetUnfolderBase]: 4775/7425 cut-off events. [2024-11-10 17:58:25,079 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-11-10 17:58:25,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14320 conditions, 7425 events. 4775/7425 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 287. Compared 43691 event pairs, 4775 based on Foata normal form. 648/8026 useless extension candidates. Maximal degree in co-relation 14309. Up to 6804 conditions per place. [2024-11-10 17:58:25,115 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 27 selfloop transitions, 1 changer transitions 1/35 dead transitions. [2024-11-10 17:58:25,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 35 transitions, 137 flow [2024-11-10 17:58:25,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 17:58:25,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 17:58:25,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2024-11-10 17:58:25,123 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4573643410852713 [2024-11-10 17:58:25,125 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 87 flow. Second operand 3 states and 59 transitions. [2024-11-10 17:58:25,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 35 transitions, 137 flow [2024-11-10 17:58:25,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 134 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 17:58:25,129 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 76 flow [2024-11-10 17:58:25,131 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2024-11-10 17:58:25,135 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2024-11-10 17:58:25,136 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 76 flow [2024-11-10 17:58:25,136 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) [2024-11-10 17:58:25,136 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:58:25,136 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:58:25,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 17:58:25,136 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)] === [2024-11-10 17:58:25,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:58:25,138 INFO L85 PathProgramCache]: Analyzing trace with hash 849277974, now seen corresponding path program 1 times [2024-11-10 17:58:25,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:58:25,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116731775] [2024-11-10 17:58:25,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:58:25,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:58:25,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:58:25,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:58:25,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:58:25,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116731775] [2024-11-10 17:58:25,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116731775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:58:25,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:58:25,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 17:58:25,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209277067] [2024-11-10 17:58:25,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:58:25,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 17:58:25,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:58:25,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 17:58:25,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 17:58:25,378 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-11-10 17:58:25,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 76 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-10 17:58:25,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:58:25,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-11-10 17:58:25,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:58:25,736 INFO L124 PetriNetUnfolderBase]: 3471/5581 cut-off events. [2024-11-10 17:58:25,736 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 17:58:25,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10787 conditions, 5581 events. 3471/5581 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 33004 event pairs, 535 based on Foata normal form. 216/5786 useless extension candidates. Maximal degree in co-relation 10781. Up to 3001 conditions per place. [2024-11-10 17:58:25,758 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 55 selfloop transitions, 5 changer transitions 1/67 dead transitions. [2024-11-10 17:58:25,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 67 transitions, 268 flow [2024-11-10 17:58:25,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 17:58:25,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 17:58:25,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 103 transitions. [2024-11-10 17:58:25,762 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5988372093023255 [2024-11-10 17:58:25,762 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 76 flow. Second operand 4 states and 103 transitions. [2024-11-10 17:58:25,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 67 transitions, 268 flow [2024-11-10 17:58:25,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 67 transitions, 267 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 17:58:25,764 INFO L231 Difference]: Finished difference. Result has 47 places, 37 transitions, 109 flow [2024-11-10 17:58:25,765 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=109, PETRI_PLACES=47, PETRI_TRANSITIONS=37} [2024-11-10 17:58:25,766 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 0 predicate places. [2024-11-10 17:58:25,766 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 37 transitions, 109 flow [2024-11-10 17:58:25,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-10 17:58:25,766 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:58:25,766 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:58:25,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 17:58:25,767 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)] === [2024-11-10 17:58:25,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:58:25,767 INFO L85 PathProgramCache]: Analyzing trace with hash 948416268, now seen corresponding path program 1 times [2024-11-10 17:58:25,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:58:25,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035315802] [2024-11-10 17:58:25,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:58:25,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:58:25,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:58:25,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:58:25,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:58:25,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035315802] [2024-11-10 17:58:25,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035315802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:58:25,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:58:25,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 17:58:25,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267553359] [2024-11-10 17:58:25,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:58:25,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 17:58:25,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:58:25,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 17:58:25,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 17:58:25,884 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-11-10 17:58:25,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 37 transitions, 109 flow. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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) [2024-11-10 17:58:25,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:58:25,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-11-10 17:58:25,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:58:26,117 INFO L124 PetriNetUnfolderBase]: 1935/3117 cut-off events. [2024-11-10 17:58:26,117 INFO L125 PetriNetUnfolderBase]: For 604/604 co-relation queries the response was YES. [2024-11-10 17:58:26,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7054 conditions, 3117 events. 1935/3117 cut-off events. For 604/604 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 15841 event pairs, 339 based on Foata normal form. 152/3258 useless extension candidates. Maximal degree in co-relation 7045. Up to 985 conditions per place. [2024-11-10 17:58:26,130 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 70 selfloop transitions, 8 changer transitions 1/85 dead transitions. [2024-11-10 17:58:26,131 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 85 transitions, 384 flow [2024-11-10 17:58:26,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 17:58:26,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 17:58:26,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 131 transitions. [2024-11-10 17:58:26,134 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6093023255813953 [2024-11-10 17:58:26,134 INFO L175 Difference]: Start difference. First operand has 47 places, 37 transitions, 109 flow. Second operand 5 states and 131 transitions. [2024-11-10 17:58:26,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 85 transitions, 384 flow [2024-11-10 17:58:26,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 85 transitions, 374 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-10 17:58:26,141 INFO L231 Difference]: Finished difference. Result has 51 places, 40 transitions, 149 flow [2024-11-10 17:58:26,141 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=149, PETRI_PLACES=51, PETRI_TRANSITIONS=40} [2024-11-10 17:58:26,142 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 4 predicate places. [2024-11-10 17:58:26,143 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 40 transitions, 149 flow [2024-11-10 17:58:26,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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) [2024-11-10 17:58:26,143 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:58:26,143 INFO L204 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] [2024-11-10 17:58:26,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 17:58:26,144 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)] === [2024-11-10 17:58:26,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:58:26,144 INFO L85 PathProgramCache]: Analyzing trace with hash -452949120, now seen corresponding path program 1 times [2024-11-10 17:58:26,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:58:26,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169926223] [2024-11-10 17:58:26,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:58:26,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:58:26,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:58:26,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:58:26,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:58:26,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169926223] [2024-11-10 17:58:26,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169926223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:58:26,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:58:26,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 17:58:26,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892278646] [2024-11-10 17:58:26,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:58:26,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 17:58:26,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:58:26,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 17:58:26,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 17:58:26,251 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-11-10 17:58:26,251 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 40 transitions, 149 flow. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 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) [2024-11-10 17:58:26,251 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:58:26,251 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-11-10 17:58:26,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:58:26,438 INFO L124 PetriNetUnfolderBase]: 1167/1821 cut-off events. [2024-11-10 17:58:26,438 INFO L125 PetriNetUnfolderBase]: For 1126/1126 co-relation queries the response was YES. [2024-11-10 17:58:26,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4566 conditions, 1821 events. 1167/1821 cut-off events. For 1126/1126 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 7974 event pairs, 303 based on Foata normal form. 56/1866 useless extension candidates. Maximal degree in co-relation 4555. Up to 672 conditions per place. [2024-11-10 17:58:26,446 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 59 selfloop transitions, 11 changer transitions 1/77 dead transitions. [2024-11-10 17:58:26,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 77 transitions, 375 flow [2024-11-10 17:58:26,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 17:58:26,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 17:58:26,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 133 transitions. [2024-11-10 17:58:26,448 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5155038759689923 [2024-11-10 17:58:26,448 INFO L175 Difference]: Start difference. First operand has 51 places, 40 transitions, 149 flow. Second operand 6 states and 133 transitions. [2024-11-10 17:58:26,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 77 transitions, 375 flow [2024-11-10 17:58:26,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 77 transitions, 350 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-10 17:58:26,457 INFO L231 Difference]: Finished difference. Result has 54 places, 40 transitions, 163 flow [2024-11-10 17:58:26,457 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=163, PETRI_PLACES=54, PETRI_TRANSITIONS=40} [2024-11-10 17:58:26,458 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 7 predicate places. [2024-11-10 17:58:26,459 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 40 transitions, 163 flow [2024-11-10 17:58:26,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 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) [2024-11-10 17:58:26,459 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:58:26,459 INFO L204 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] [2024-11-10 17:58:26,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 17:58:26,460 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)] === [2024-11-10 17:58:26,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:58:26,460 INFO L85 PathProgramCache]: Analyzing trace with hash -3573520, now seen corresponding path program 1 times [2024-11-10 17:58:26,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:58:26,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712261161] [2024-11-10 17:58:26,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:58:26,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:58:26,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:58:26,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:58:26,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:58:26,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712261161] [2024-11-10 17:58:26,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712261161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:58:26,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:58:26,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 17:58:26,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722134121] [2024-11-10 17:58:26,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:58:26,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 17:58:26,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:58:26,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 17:58:26,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-10 17:58:26,603 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-11-10 17:58:26,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 40 transitions, 163 flow. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 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) [2024-11-10 17:58:26,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:58:26,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-11-10 17:58:26,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:58:26,934 INFO L124 PetriNetUnfolderBase]: 2235/3489 cut-off events. [2024-11-10 17:58:26,935 INFO L125 PetriNetUnfolderBase]: For 2720/2720 co-relation queries the response was YES. [2024-11-10 17:58:26,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9003 conditions, 3489 events. 2235/3489 cut-off events. For 2720/2720 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 17312 event pairs, 291 based on Foata normal form. 16/3494 useless extension candidates. Maximal degree in co-relation 8991. Up to 1308 conditions per place. [2024-11-10 17:58:26,945 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 52 selfloop transitions, 6 changer transitions 56/120 dead transitions. [2024-11-10 17:58:26,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 120 transitions, 707 flow [2024-11-10 17:58:26,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 17:58:26,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 17:58:26,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 188 transitions. [2024-11-10 17:58:26,947 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48578811369509045 [2024-11-10 17:58:26,947 INFO L175 Difference]: Start difference. First operand has 54 places, 40 transitions, 163 flow. Second operand 9 states and 188 transitions. [2024-11-10 17:58:26,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 120 transitions, 707 flow [2024-11-10 17:58:26,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 120 transitions, 541 flow, removed 30 selfloop flow, removed 8 redundant places. [2024-11-10 17:58:26,962 INFO L231 Difference]: Finished difference. Result has 61 places, 42 transitions, 151 flow [2024-11-10 17:58:26,962 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=151, PETRI_PLACES=61, PETRI_TRANSITIONS=42} [2024-11-10 17:58:26,962 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 14 predicate places. [2024-11-10 17:58:26,963 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 42 transitions, 151 flow [2024-11-10 17:58:26,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 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) [2024-11-10 17:58:26,963 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:58:26,963 INFO L204 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] [2024-11-10 17:58:26,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 17:58:26,964 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)] === [2024-11-10 17:58:26,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:58:26,964 INFO L85 PathProgramCache]: Analyzing trace with hash 644301988, now seen corresponding path program 2 times [2024-11-10 17:58:26,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:58:26,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968469820] [2024-11-10 17:58:26,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:58:26,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:58:26,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:58:27,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:58:27,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:58:27,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968469820] [2024-11-10 17:58:27,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968469820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:58:27,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:58:27,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 17:58:27,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509410519] [2024-11-10 17:58:27,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:58:27,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 17:58:27,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:58:27,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 17:58:27,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-10 17:58:27,137 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-11-10 17:58:27,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 42 transitions, 151 flow. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 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) [2024-11-10 17:58:27,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:58:27,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-11-10 17:58:27,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:58:27,321 INFO L124 PetriNetUnfolderBase]: 900/1432 cut-off events. [2024-11-10 17:58:27,322 INFO L125 PetriNetUnfolderBase]: For 430/430 co-relation queries the response was YES. [2024-11-10 17:58:27,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3546 conditions, 1432 events. 900/1432 cut-off events. For 430/430 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 5789 event pairs, 118 based on Foata normal form. 8/1438 useless extension candidates. Maximal degree in co-relation 3537. Up to 960 conditions per place. [2024-11-10 17:58:27,325 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 0 selfloop transitions, 0 changer transitions 71/71 dead transitions. [2024-11-10 17:58:27,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 71 transitions, 368 flow [2024-11-10 17:58:27,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 17:58:27,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 17:58:27,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 138 transitions. [2024-11-10 17:58:27,327 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4011627906976744 [2024-11-10 17:58:27,328 INFO L175 Difference]: Start difference. First operand has 61 places, 42 transitions, 151 flow. Second operand 8 states and 138 transitions. [2024-11-10 17:58:27,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 71 transitions, 368 flow [2024-11-10 17:58:27,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 71 transitions, 354 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-10 17:58:27,329 INFO L231 Difference]: Finished difference. Result has 57 places, 0 transitions, 0 flow [2024-11-10 17:58:27,329 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=50, 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=8, PETRI_FLOW=0, PETRI_PLACES=57, PETRI_TRANSITIONS=0} [2024-11-10 17:58:27,330 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 10 predicate places. [2024-11-10 17:58:27,330 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 0 transitions, 0 flow [2024-11-10 17:58:27,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 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) [2024-11-10 17:58:27,333 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-11-10 17:58:27,333 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-11-10 17:58:27,333 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-10 17:58:27,333 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-10 17:58:27,334 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-11-10 17:58:27,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 17:58:27,334 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-11-10 17:58:27,336 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 17:58:27,337 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 17:58:27,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 05:58:27 BasicIcfg [2024-11-10 17:58:27,344 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 17:58:27,344 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 17:58:27,344 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 17:58:27,345 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 17:58:27,345 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 05:58:24" (3/4) ... [2024-11-10 17:58:27,347 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 17:58:27,349 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-10 17:58:27,349 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-10 17:58:27,349 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-10 17:58:27,352 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2024-11-10 17:58:27,353 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-10 17:58:27,353 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-10 17:58:27,353 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-10 17:58:27,410 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 17:58:27,410 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 17:58:27,411 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 17:58:27,411 INFO L158 Benchmark]: Toolchain (without parser) took 4156.50ms. Allocated memory was 184.5MB in the beginning and 392.2MB in the end (delta: 207.6MB). Free memory was 119.7MB in the beginning and 185.1MB in the end (delta: -65.4MB). Peak memory consumption was 142.6MB. Max. memory is 16.1GB. [2024-11-10 17:58:27,411 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 96.5MB. Free memory is still 46.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 17:58:27,412 INFO L158 Benchmark]: CACSL2BoogieTranslator took 398.88ms. Allocated memory is still 184.5MB. Free memory was 119.7MB in the beginning and 145.1MB in the end (delta: -25.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-10 17:58:27,412 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.80ms. Allocated memory is still 184.5MB. Free memory was 145.1MB in the beginning and 143.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 17:58:27,412 INFO L158 Benchmark]: Boogie Preprocessor took 46.04ms. Allocated memory is still 184.5MB. Free memory was 143.0MB in the beginning and 140.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 17:58:27,412 INFO L158 Benchmark]: IcfgBuilder took 377.27ms. Allocated memory is still 184.5MB. Free memory was 140.9MB in the beginning and 120.0MB in the end (delta: 21.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-10 17:58:27,413 INFO L158 Benchmark]: TraceAbstraction took 3226.36ms. Allocated memory was 184.5MB in the beginning and 392.2MB in the end (delta: 207.6MB). Free memory was 118.9MB in the beginning and 189.3MB in the end (delta: -70.3MB). Peak memory consumption was 139.4MB. Max. memory is 16.1GB. [2024-11-10 17:58:27,415 INFO L158 Benchmark]: Witness Printer took 66.35ms. Allocated memory is still 392.2MB. Free memory was 189.3MB in the beginning and 185.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 17:58:27,416 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 96.5MB. Free memory is still 46.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 398.88ms. Allocated memory is still 184.5MB. Free memory was 119.7MB in the beginning and 145.1MB in the end (delta: -25.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.80ms. Allocated memory is still 184.5MB. Free memory was 145.1MB in the beginning and 143.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.04ms. Allocated memory is still 184.5MB. Free memory was 143.0MB in the beginning and 140.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 377.27ms. Allocated memory is still 184.5MB. Free memory was 140.9MB in the beginning and 120.0MB in the end (delta: 21.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 3226.36ms. Allocated memory was 184.5MB in the beginning and 392.2MB in the end (delta: 207.6MB). Free memory was 118.9MB in the beginning and 189.3MB in the end (delta: -70.3MB). Peak memory consumption was 139.4MB. Max. memory is 16.1GB. * Witness Printer took 66.35ms. Allocated memory is still 392.2MB. Free memory was 189.3MB in the beginning and 185.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 774]: 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, 66 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: 3.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 352 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 348 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 686 IncrementalHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 0 mSDtfsCounter, 686 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=163occurred in iteration=4, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 135 NumberOfCodeBlocks, 135 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 129 ConstructedInterpolants, 0 QuantifiedInterpolants, 555 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-10 17:58:27,443 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE