./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3289d67d 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/weaver/parallel-bakery-2.wvr.c -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 4f539592bc69a174492e01050b581a78ee6bfd25c2e79dba974730b39e2fa54b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 03:34:12,635 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 03:34:12,722 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 03:34:12,725 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 03:34:12,726 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 03:34:12,760 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 03:34:12,761 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 03:34:12,761 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 03:34:12,762 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 03:34:12,763 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 03:34:12,764 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 03:34:12,764 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 03:34:12,764 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 03:34:12,765 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 03:34:12,765 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 03:34:12,767 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 03:34:12,767 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 03:34:12,767 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 03:34:12,767 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 03:34:12,771 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 03:34:12,771 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 03:34:12,772 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 03:34:12,772 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 03:34:12,772 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 03:34:12,772 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 03:34:12,773 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 03:34:12,773 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 03:34:12,773 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 03:34:12,773 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 03:34:12,773 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 03:34:12,774 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 03:34:12,775 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 03:34:12,775 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 03:34:12,775 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:34:12,775 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 03:34:12,776 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 03:34:12,776 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 03:34:12,776 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 03:34:12,776 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 03:34:12,776 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 03:34:12,777 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 03:34:12,778 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 03:34:12,778 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f539592bc69a174492e01050b581a78ee6bfd25c2e79dba974730b39e2fa54b [2024-11-17 03:34:13,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 03:34:13,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 03:34:13,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 03:34:13,065 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 03:34:13,065 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 03:34:13,066 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c [2024-11-17 03:34:14,525 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 03:34:14,727 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 03:34:14,728 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c [2024-11-17 03:34:14,736 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/181f3bd29/535df8342fb942d4875401066a44cbbd/FLAG150a14578 [2024-11-17 03:34:14,753 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/181f3bd29/535df8342fb942d4875401066a44cbbd [2024-11-17 03:34:14,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 03:34:14,759 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 03:34:14,760 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 03:34:14,760 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 03:34:14,768 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 03:34:14,769 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:34:14" (1/1) ... [2024-11-17 03:34:14,770 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a308d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:34:14, skipping insertion in model container [2024-11-17 03:34:14,770 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:34:14" (1/1) ... [2024-11-17 03:34:14,793 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 03:34:15,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:34:15,043 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 03:34:15,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:34:15,092 INFO L204 MainTranslator]: Completed translation [2024-11-17 03:34:15,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:34:15 WrapperNode [2024-11-17 03:34:15,094 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 03:34:15,095 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 03:34:15,096 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 03:34:15,099 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 03:34:15,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:34:15" (1/1) ... [2024-11-17 03:34:15,112 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:34:15" (1/1) ... [2024-11-17 03:34:15,129 INFO L138 Inliner]: procedures = 18, calls = 15, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 141 [2024-11-17 03:34:15,130 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 03:34:15,131 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 03:34:15,131 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 03:34:15,131 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 03:34:15,141 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:34:15" (1/1) ... [2024-11-17 03:34:15,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:34:15" (1/1) ... [2024-11-17 03:34:15,144 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:34:15" (1/1) ... [2024-11-17 03:34:15,157 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]. [2024-11-17 03:34:15,158 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:34:15" (1/1) ... [2024-11-17 03:34:15,158 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:34:15" (1/1) ... [2024-11-17 03:34:15,162 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:34:15" (1/1) ... [2024-11-17 03:34:15,163 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:34:15" (1/1) ... [2024-11-17 03:34:15,164 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:34:15" (1/1) ... [2024-11-17 03:34:15,165 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:34:15" (1/1) ... [2024-11-17 03:34:15,167 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 03:34:15,168 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 03:34:15,168 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 03:34:15,168 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 03:34:15,169 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:34:15" (1/1) ... [2024-11-17 03:34:15,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:34:15,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:34:15,200 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) [2024-11-17 03:34:15,204 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 [2024-11-17 03:34:15,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 03:34:15,238 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-17 03:34:15,238 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-17 03:34:15,238 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-17 03:34:15,239 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-17 03:34:15,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 03:34:15,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 03:34:15,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 03:34:15,241 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 03:34:15,326 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 03:34:15,327 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 03:34:15,536 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 03:34:15,536 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 03:34:15,698 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 03:34:15,699 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 03:34:15,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:34:15 BoogieIcfgContainer [2024-11-17 03:34:15,699 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 03:34:15,703 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 03:34:15,703 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 03:34:15,706 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 03:34:15,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:34:14" (1/3) ... [2024-11-17 03:34:15,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@559e69be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:34:15, skipping insertion in model container [2024-11-17 03:34:15,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:34:15" (2/3) ... [2024-11-17 03:34:15,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@559e69be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:34:15, skipping insertion in model container [2024-11-17 03:34:15,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:34:15" (3/3) ... [2024-11-17 03:34:15,710 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-2.wvr.c [2024-11-17 03:34:15,725 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 03:34:15,726 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-17 03:34:15,726 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 03:34:15,783 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-17 03:34:15,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 126 flow [2024-11-17 03:34:15,852 INFO L124 PetriNetUnfolderBase]: 2/54 cut-off events. [2024-11-17 03:34:15,853 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-17 03:34:15,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 54 events. 2/54 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 42 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2024-11-17 03:34:15,856 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 56 transitions, 126 flow [2024-11-17 03:34:15,860 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 53 transitions, 118 flow [2024-11-17 03:34:15,875 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 03:34:15,882 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;@668b1445, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 03:34:15,884 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-17 03:34:15,906 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 03:34:15,906 INFO L124 PetriNetUnfolderBase]: 2/50 cut-off events. [2024-11-17 03:34:15,906 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-17 03:34:15,907 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:34:15,907 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:34:15,908 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:34:15,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:34:15,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1116668483, now seen corresponding path program 1 times [2024-11-17 03:34:15,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:34:15,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897043601] [2024-11-17 03:34:15,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:34:15,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:34:16,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:34:16,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:34:16,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:34:16,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897043601] [2024-11-17 03:34:16,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897043601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:34:16,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:34:16,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-17 03:34:16,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976028729] [2024-11-17 03:34:16,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:34:16,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 03:34:16,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:34:16,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 03:34:16,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-17 03:34:16,705 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 56 [2024-11-17 03:34:16,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 53 transitions, 118 flow. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 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) [2024-11-17 03:34:16,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:34:16,708 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 56 [2024-11-17 03:34:16,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:34:17,225 INFO L124 PetriNetUnfolderBase]: 441/859 cut-off events. [2024-11-17 03:34:17,226 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-11-17 03:34:17,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1710 conditions, 859 events. 441/859 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3808 event pairs, 149 based on Foata normal form. 4/836 useless extension candidates. Maximal degree in co-relation 1552. Up to 274 conditions per place. [2024-11-17 03:34:17,234 INFO L140 encePairwiseOnDemand]: 46/56 looper letters, 70 selfloop transitions, 10 changer transitions 21/110 dead transitions. [2024-11-17 03:34:17,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 110 transitions, 461 flow [2024-11-17 03:34:17,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 03:34:17,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 03:34:17,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 201 transitions. [2024-11-17 03:34:17,247 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4486607142857143 [2024-11-17 03:34:17,249 INFO L175 Difference]: Start difference. First operand has 58 places, 53 transitions, 118 flow. Second operand 8 states and 201 transitions. [2024-11-17 03:34:17,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 110 transitions, 461 flow [2024-11-17 03:34:17,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 110 transitions, 435 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 03:34:17,259 INFO L231 Difference]: Finished difference. Result has 62 places, 56 transitions, 150 flow [2024-11-17 03:34:17,261 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=150, PETRI_PLACES=62, PETRI_TRANSITIONS=56} [2024-11-17 03:34:17,265 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 4 predicate places. [2024-11-17 03:34:17,265 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 56 transitions, 150 flow [2024-11-17 03:34:17,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 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) [2024-11-17 03:34:17,265 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:34:17,266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:34:17,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 03:34:17,266 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:34:17,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:34:17,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1587315659, now seen corresponding path program 2 times [2024-11-17 03:34:17,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:34:17,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711444703] [2024-11-17 03:34:17,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:34:17,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:34:17,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:34:17,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:34:17,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:34:17,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711444703] [2024-11-17 03:34:17,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711444703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:34:17,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:34:17,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:34:17,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206405102] [2024-11-17 03:34:17,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:34:17,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:34:17,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:34:17,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:34:17,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:34:17,458 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 56 [2024-11-17 03:34:17,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 56 transitions, 150 flow. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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) [2024-11-17 03:34:17,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:34:17,458 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 56 [2024-11-17 03:34:17,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:34:17,742 INFO L124 PetriNetUnfolderBase]: 722/1316 cut-off events. [2024-11-17 03:34:17,743 INFO L125 PetriNetUnfolderBase]: For 98/98 co-relation queries the response was YES. [2024-11-17 03:34:17,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2853 conditions, 1316 events. 722/1316 cut-off events. For 98/98 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 6049 event pairs, 120 based on Foata normal form. 0/1275 useless extension candidates. Maximal degree in co-relation 2835. Up to 814 conditions per place. [2024-11-17 03:34:17,755 INFO L140 encePairwiseOnDemand]: 44/56 looper letters, 89 selfloop transitions, 18 changer transitions 9/122 dead transitions. [2024-11-17 03:34:17,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 122 transitions, 558 flow [2024-11-17 03:34:17,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 03:34:17,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 03:34:17,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 171 transitions. [2024-11-17 03:34:17,760 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4362244897959184 [2024-11-17 03:34:17,761 INFO L175 Difference]: Start difference. First operand has 62 places, 56 transitions, 150 flow. Second operand 7 states and 171 transitions. [2024-11-17 03:34:17,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 122 transitions, 558 flow [2024-11-17 03:34:17,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 122 transitions, 556 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-17 03:34:17,766 INFO L231 Difference]: Finished difference. Result has 70 places, 70 transitions, 261 flow [2024-11-17 03:34:17,767 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=261, PETRI_PLACES=70, PETRI_TRANSITIONS=70} [2024-11-17 03:34:17,767 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 12 predicate places. [2024-11-17 03:34:17,768 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 70 transitions, 261 flow [2024-11-17 03:34:17,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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) [2024-11-17 03:34:17,768 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:34:17,768 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:34:17,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 03:34:17,769 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:34:17,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:34:17,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1882538299, now seen corresponding path program 3 times [2024-11-17 03:34:17,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:34:17,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210020697] [2024-11-17 03:34:17,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:34:17,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:34:17,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:34:17,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:34:17,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:34:17,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210020697] [2024-11-17 03:34:17,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210020697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:34:17,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:34:17,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:34:17,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382988385] [2024-11-17 03:34:17,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:34:17,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:34:17,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:34:17,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:34:17,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:34:17,870 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 56 [2024-11-17 03:34:17,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 70 transitions, 261 flow. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2024-11-17 03:34:17,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:34:17,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 56 [2024-11-17 03:34:17,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:34:18,062 INFO L124 PetriNetUnfolderBase]: 536/1092 cut-off events. [2024-11-17 03:34:18,063 INFO L125 PetriNetUnfolderBase]: For 503/505 co-relation queries the response was YES. [2024-11-17 03:34:18,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2869 conditions, 1092 events. 536/1092 cut-off events. For 503/505 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 5390 event pairs, 334 based on Foata normal form. 10/1093 useless extension candidates. Maximal degree in co-relation 1287. Up to 753 conditions per place. [2024-11-17 03:34:18,070 INFO L140 encePairwiseOnDemand]: 53/56 looper letters, 64 selfloop transitions, 2 changer transitions 4/83 dead transitions. [2024-11-17 03:34:18,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 83 transitions, 453 flow [2024-11-17 03:34:18,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:34:18,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:34:18,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 90 transitions. [2024-11-17 03:34:18,073 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2024-11-17 03:34:18,073 INFO L175 Difference]: Start difference. First operand has 70 places, 70 transitions, 261 flow. Second operand 3 states and 90 transitions. [2024-11-17 03:34:18,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 83 transitions, 453 flow [2024-11-17 03:34:18,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 83 transitions, 448 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-17 03:34:18,083 INFO L231 Difference]: Finished difference. Result has 72 places, 70 transitions, 264 flow [2024-11-17 03:34:18,083 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=72, PETRI_TRANSITIONS=70} [2024-11-17 03:34:18,084 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 14 predicate places. [2024-11-17 03:34:18,085 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 70 transitions, 264 flow [2024-11-17 03:34:18,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2024-11-17 03:34:18,085 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:34:18,085 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:34:18,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 03:34:18,087 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:34:18,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:34:18,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1716917301, now seen corresponding path program 4 times [2024-11-17 03:34:18,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:34:18,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934553996] [2024-11-17 03:34:18,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:34:18,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:34:18,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:34:18,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:34:18,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:34:18,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934553996] [2024-11-17 03:34:18,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934553996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:34:18,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:34:18,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:34:18,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679850202] [2024-11-17 03:34:18,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:34:18,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:34:18,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:34:18,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:34:18,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:34:18,251 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 56 [2024-11-17 03:34:18,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 70 transitions, 264 flow. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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) [2024-11-17 03:34:18,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:34:18,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 56 [2024-11-17 03:34:18,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:34:18,555 INFO L124 PetriNetUnfolderBase]: 824/1555 cut-off events. [2024-11-17 03:34:18,556 INFO L125 PetriNetUnfolderBase]: For 649/665 co-relation queries the response was YES. [2024-11-17 03:34:18,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4140 conditions, 1555 events. 824/1555 cut-off events. For 649/665 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 7607 event pairs, 193 based on Foata normal form. 14/1517 useless extension candidates. Maximal degree in co-relation 2195. Up to 1018 conditions per place. [2024-11-17 03:34:18,566 INFO L140 encePairwiseOnDemand]: 44/56 looper letters, 99 selfloop transitions, 22 changer transitions 0/131 dead transitions. [2024-11-17 03:34:18,566 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 131 transitions, 716 flow [2024-11-17 03:34:18,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 03:34:18,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 03:34:18,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 170 transitions. [2024-11-17 03:34:18,567 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4336734693877551 [2024-11-17 03:34:18,567 INFO L175 Difference]: Start difference. First operand has 72 places, 70 transitions, 264 flow. Second operand 7 states and 170 transitions. [2024-11-17 03:34:18,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 131 transitions, 716 flow [2024-11-17 03:34:18,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 131 transitions, 700 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 03:34:18,573 INFO L231 Difference]: Finished difference. Result has 80 places, 84 transitions, 401 flow [2024-11-17 03:34:18,573 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=401, PETRI_PLACES=80, PETRI_TRANSITIONS=84} [2024-11-17 03:34:18,574 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 22 predicate places. [2024-11-17 03:34:18,574 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 84 transitions, 401 flow [2024-11-17 03:34:18,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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) [2024-11-17 03:34:18,575 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:34:18,575 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:34:18,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 03:34:18,576 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:34:18,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:34:18,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1831001453, now seen corresponding path program 5 times [2024-11-17 03:34:18,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:34:18,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041876282] [2024-11-17 03:34:18,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:34:18,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:34:18,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:34:18,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:34:18,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:34:18,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041876282] [2024-11-17 03:34:18,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041876282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:34:18,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:34:18,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:34:18,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191097611] [2024-11-17 03:34:18,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:34:18,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:34:18,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:34:18,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:34:18,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:34:18,784 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 56 [2024-11-17 03:34:18,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 84 transitions, 401 flow. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-11-17 03:34:18,785 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:34:18,785 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 56 [2024-11-17 03:34:18,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:34:18,991 INFO L124 PetriNetUnfolderBase]: 643/1274 cut-off events. [2024-11-17 03:34:18,992 INFO L125 PetriNetUnfolderBase]: For 1102/1126 co-relation queries the response was YES. [2024-11-17 03:34:18,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3713 conditions, 1274 events. 643/1274 cut-off events. For 1102/1126 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 6330 event pairs, 119 based on Foata normal form. 12/1264 useless extension candidates. Maximal degree in co-relation 1953. Up to 982 conditions per place. [2024-11-17 03:34:19,000 INFO L140 encePairwiseOnDemand]: 47/56 looper letters, 66 selfloop transitions, 12 changer transitions 9/105 dead transitions. [2024-11-17 03:34:19,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 105 transitions, 635 flow [2024-11-17 03:34:19,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:34:19,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:34:19,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 132 transitions. [2024-11-17 03:34:19,002 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4714285714285714 [2024-11-17 03:34:19,002 INFO L175 Difference]: Start difference. First operand has 80 places, 84 transitions, 401 flow. Second operand 5 states and 132 transitions. [2024-11-17 03:34:19,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 105 transitions, 635 flow [2024-11-17 03:34:19,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 105 transitions, 623 flow, removed 6 selfloop flow, removed 0 redundant places. [2024-11-17 03:34:19,009 INFO L231 Difference]: Finished difference. Result has 85 places, 81 transitions, 399 flow [2024-11-17 03:34:19,009 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=399, PETRI_PLACES=85, PETRI_TRANSITIONS=81} [2024-11-17 03:34:19,010 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 27 predicate places. [2024-11-17 03:34:19,010 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 81 transitions, 399 flow [2024-11-17 03:34:19,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-11-17 03:34:19,010 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:34:19,010 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:34:19,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 03:34:19,011 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:34:19,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:34:19,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1079588009, now seen corresponding path program 6 times [2024-11-17 03:34:19,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:34:19,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362206428] [2024-11-17 03:34:19,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:34:19,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:34:19,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:34:19,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:34:19,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:34:19,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362206428] [2024-11-17 03:34:19,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362206428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:34:19,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:34:19,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:34:19,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46560715] [2024-11-17 03:34:19,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:34:19,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:34:19,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:34:19,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:34:19,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:34:19,084 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 56 [2024-11-17 03:34:19,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 81 transitions, 399 flow. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2024-11-17 03:34:19,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:34:19,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 56 [2024-11-17 03:34:19,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:34:19,252 INFO L124 PetriNetUnfolderBase]: 583/1222 cut-off events. [2024-11-17 03:34:19,253 INFO L125 PetriNetUnfolderBase]: For 1132/1144 co-relation queries the response was YES. [2024-11-17 03:34:19,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3569 conditions, 1222 events. 583/1222 cut-off events. For 1132/1144 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 6256 event pairs, 319 based on Foata normal form. 18/1224 useless extension candidates. Maximal degree in co-relation 2370. Up to 777 conditions per place. [2024-11-17 03:34:19,261 INFO L140 encePairwiseOnDemand]: 53/56 looper letters, 77 selfloop transitions, 2 changer transitions 0/97 dead transitions. [2024-11-17 03:34:19,261 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 97 transitions, 630 flow [2024-11-17 03:34:19,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:34:19,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:34:19,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 91 transitions. [2024-11-17 03:34:19,262 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2024-11-17 03:34:19,262 INFO L175 Difference]: Start difference. First operand has 85 places, 81 transitions, 399 flow. Second operand 3 states and 91 transitions. [2024-11-17 03:34:19,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 97 transitions, 630 flow [2024-11-17 03:34:19,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 97 transitions, 598 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-17 03:34:19,270 INFO L231 Difference]: Finished difference. Result has 83 places, 81 transitions, 381 flow [2024-11-17 03:34:19,270 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=381, PETRI_PLACES=83, PETRI_TRANSITIONS=81} [2024-11-17 03:34:19,271 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 25 predicate places. [2024-11-17 03:34:19,271 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 81 transitions, 381 flow [2024-11-17 03:34:19,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2024-11-17 03:34:19,271 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:34:19,272 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:34:19,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 03:34:19,272 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:34:19,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:34:19,273 INFO L85 PathProgramCache]: Analyzing trace with hash 582417901, now seen corresponding path program 7 times [2024-11-17 03:34:19,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:34:19,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223354688] [2024-11-17 03:34:19,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:34:19,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:34:19,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:34:19,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:34:19,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:34:19,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223354688] [2024-11-17 03:34:19,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223354688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:34:19,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:34:19,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-17 03:34:19,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035875840] [2024-11-17 03:34:19,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:34:19,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 03:34:19,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:34:19,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 03:34:19,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-17 03:34:19,387 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 56 [2024-11-17 03:34:19,387 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 81 transitions, 381 flow. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 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) [2024-11-17 03:34:19,387 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:34:19,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 56 [2024-11-17 03:34:19,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:34:19,707 INFO L124 PetriNetUnfolderBase]: 588/1177 cut-off events. [2024-11-17 03:34:19,707 INFO L125 PetriNetUnfolderBase]: For 1121/1143 co-relation queries the response was YES. [2024-11-17 03:34:19,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3555 conditions, 1177 events. 588/1177 cut-off events. For 1121/1143 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 5818 event pairs, 204 based on Foata normal form. 3/1153 useless extension candidates. Maximal degree in co-relation 2467. Up to 461 conditions per place. [2024-11-17 03:34:19,715 INFO L140 encePairwiseOnDemand]: 47/56 looper letters, 73 selfloop transitions, 10 changer transitions 36/136 dead transitions. [2024-11-17 03:34:19,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 136 transitions, 872 flow [2024-11-17 03:34:19,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 03:34:19,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 03:34:19,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 189 transitions. [2024-11-17 03:34:19,717 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.421875 [2024-11-17 03:34:19,717 INFO L175 Difference]: Start difference. First operand has 83 places, 81 transitions, 381 flow. Second operand 8 states and 189 transitions. [2024-11-17 03:34:19,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 136 transitions, 872 flow [2024-11-17 03:34:19,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 136 transitions, 860 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 03:34:19,724 INFO L231 Difference]: Finished difference. Result has 89 places, 75 transitions, 372 flow [2024-11-17 03:34:19,724 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=372, PETRI_PLACES=89, PETRI_TRANSITIONS=75} [2024-11-17 03:34:19,726 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 31 predicate places. [2024-11-17 03:34:19,726 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 75 transitions, 372 flow [2024-11-17 03:34:19,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 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) [2024-11-17 03:34:19,727 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:34:19,727 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:34:19,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 03:34:19,727 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:34:19,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:34:19,728 INFO L85 PathProgramCache]: Analyzing trace with hash 211771347, now seen corresponding path program 8 times [2024-11-17 03:34:19,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:34:19,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432027788] [2024-11-17 03:34:19,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:34:19,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:34:19,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:34:19,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:34:19,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:34:19,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432027788] [2024-11-17 03:34:19,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432027788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:34:19,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:34:19,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:34:19,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107910849] [2024-11-17 03:34:19,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:34:19,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:34:19,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:34:19,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:34:19,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:34:19,901 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 56 [2024-11-17 03:34:19,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 75 transitions, 372 flow. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-11-17 03:34:19,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:34:19,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 56 [2024-11-17 03:34:19,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:34:20,087 INFO L124 PetriNetUnfolderBase]: 425/898 cut-off events. [2024-11-17 03:34:20,087 INFO L125 PetriNetUnfolderBase]: For 820/838 co-relation queries the response was YES. [2024-11-17 03:34:20,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2639 conditions, 898 events. 425/898 cut-off events. For 820/838 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4255 event pairs, 102 based on Foata normal form. 10/882 useless extension candidates. Maximal degree in co-relation 2612. Up to 644 conditions per place. [2024-11-17 03:34:20,093 INFO L140 encePairwiseOnDemand]: 47/56 looper letters, 56 selfloop transitions, 12 changer transitions 8/93 dead transitions. [2024-11-17 03:34:20,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 93 transitions, 578 flow [2024-11-17 03:34:20,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:34:20,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:34:20,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 129 transitions. [2024-11-17 03:34:20,094 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4607142857142857 [2024-11-17 03:34:20,094 INFO L175 Difference]: Start difference. First operand has 89 places, 75 transitions, 372 flow. Second operand 5 states and 129 transitions. [2024-11-17 03:34:20,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 93 transitions, 578 flow [2024-11-17 03:34:20,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 93 transitions, 541 flow, removed 5 selfloop flow, removed 8 redundant places. [2024-11-17 03:34:20,099 INFO L231 Difference]: Finished difference. Result has 84 places, 72 transitions, 343 flow [2024-11-17 03:34:20,099 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=343, PETRI_PLACES=84, PETRI_TRANSITIONS=72} [2024-11-17 03:34:20,101 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 26 predicate places. [2024-11-17 03:34:20,102 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 72 transitions, 343 flow [2024-11-17 03:34:20,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-11-17 03:34:20,102 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:34:20,103 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:34:20,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 03:34:20,103 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:34:20,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:34:20,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1536277954, now seen corresponding path program 1 times [2024-11-17 03:34:20,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:34:20,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500296795] [2024-11-17 03:34:20,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:34:20,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:34:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:34:20,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:34:20,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:34:20,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500296795] [2024-11-17 03:34:20,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500296795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:34:20,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:34:20,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:34:20,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588728878] [2024-11-17 03:34:20,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:34:20,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:34:20,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:34:20,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:34:20,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:34:20,197 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 56 [2024-11-17 03:34:20,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 72 transitions, 343 flow. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-11-17 03:34:20,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:34:20,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 56 [2024-11-17 03:34:20,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:34:20,387 INFO L124 PetriNetUnfolderBase]: 493/992 cut-off events. [2024-11-17 03:34:20,388 INFO L125 PetriNetUnfolderBase]: For 920/924 co-relation queries the response was YES. [2024-11-17 03:34:20,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2857 conditions, 992 events. 493/992 cut-off events. For 920/924 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 4413 event pairs, 116 based on Foata normal form. 16/998 useless extension candidates. Maximal degree in co-relation 1986. Up to 521 conditions per place. [2024-11-17 03:34:20,393 INFO L140 encePairwiseOnDemand]: 45/56 looper letters, 70 selfloop transitions, 13 changer transitions 3/95 dead transitions. [2024-11-17 03:34:20,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 95 transitions, 587 flow [2024-11-17 03:34:20,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:34:20,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:34:20,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 122 transitions. [2024-11-17 03:34:20,394 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4357142857142857 [2024-11-17 03:34:20,395 INFO L175 Difference]: Start difference. First operand has 84 places, 72 transitions, 343 flow. Second operand 5 states and 122 transitions. [2024-11-17 03:34:20,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 95 transitions, 587 flow [2024-11-17 03:34:20,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 95 transitions, 531 flow, removed 6 selfloop flow, removed 8 redundant places. [2024-11-17 03:34:20,399 INFO L231 Difference]: Finished difference. Result has 80 places, 68 transitions, 316 flow [2024-11-17 03:34:20,399 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=316, PETRI_PLACES=80, PETRI_TRANSITIONS=68} [2024-11-17 03:34:20,400 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 22 predicate places. [2024-11-17 03:34:20,400 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 68 transitions, 316 flow [2024-11-17 03:34:20,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-11-17 03:34:20,400 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:34:20,400 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:34:20,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-17 03:34:20,401 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:34:20,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:34:20,401 INFO L85 PathProgramCache]: Analyzing trace with hash 212550190, now seen corresponding path program 2 times [2024-11-17 03:34:20,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:34:20,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111303234] [2024-11-17 03:34:20,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:34:20,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:34:20,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:34:20,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:34:20,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:34:20,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111303234] [2024-11-17 03:34:20,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111303234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:34:20,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:34:20,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-17 03:34:20,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339991804] [2024-11-17 03:34:20,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:34:20,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 03:34:20,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:34:20,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 03:34:20,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-17 03:34:20,567 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 56 [2024-11-17 03:34:20,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 68 transitions, 316 flow. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 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) [2024-11-17 03:34:20,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:34:20,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 56 [2024-11-17 03:34:20,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:34:20,811 INFO L124 PetriNetUnfolderBase]: 387/816 cut-off events. [2024-11-17 03:34:20,811 INFO L125 PetriNetUnfolderBase]: For 687/691 co-relation queries the response was YES. [2024-11-17 03:34:20,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2380 conditions, 816 events. 387/816 cut-off events. For 687/691 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3585 event pairs, 128 based on Foata normal form. 6/812 useless extension candidates. Maximal degree in co-relation 1663. Up to 349 conditions per place. [2024-11-17 03:34:20,816 INFO L140 encePairwiseOnDemand]: 46/56 looper letters, 60 selfloop transitions, 7 changer transitions 24/100 dead transitions. [2024-11-17 03:34:20,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 100 transitions, 601 flow [2024-11-17 03:34:20,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 03:34:20,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 03:34:20,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 147 transitions. [2024-11-17 03:34:20,818 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.375 [2024-11-17 03:34:20,818 INFO L175 Difference]: Start difference. First operand has 80 places, 68 transitions, 316 flow. Second operand 7 states and 147 transitions. [2024-11-17 03:34:20,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 100 transitions, 601 flow [2024-11-17 03:34:20,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 100 transitions, 586 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-17 03:34:20,823 INFO L231 Difference]: Finished difference. Result has 86 places, 64 transitions, 292 flow [2024-11-17 03:34:20,823 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=292, PETRI_PLACES=86, PETRI_TRANSITIONS=64} [2024-11-17 03:34:20,824 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 28 predicate places. [2024-11-17 03:34:20,824 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 64 transitions, 292 flow [2024-11-17 03:34:20,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 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) [2024-11-17 03:34:20,825 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:34:20,825 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:34:20,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-17 03:34:20,825 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:34:20,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:34:20,826 INFO L85 PathProgramCache]: Analyzing trace with hash 570616876, now seen corresponding path program 1 times [2024-11-17 03:34:20,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:34:20,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2946066] [2024-11-17 03:34:20,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:34:20,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:34:20,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:34:20,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:34:20,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:34:20,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2946066] [2024-11-17 03:34:20,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2946066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:34:20,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:34:20,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:34:20,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829268677] [2024-11-17 03:34:20,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:34:20,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:34:20,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:34:20,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:34:20,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:34:20,896 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 56 [2024-11-17 03:34:20,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 64 transitions, 292 flow. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-11-17 03:34:20,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:34:20,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 56 [2024-11-17 03:34:20,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:34:21,051 INFO L124 PetriNetUnfolderBase]: 220/485 cut-off events. [2024-11-17 03:34:21,052 INFO L125 PetriNetUnfolderBase]: For 375/381 co-relation queries the response was YES. [2024-11-17 03:34:21,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1369 conditions, 485 events. 220/485 cut-off events. For 375/381 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1650 event pairs, 70 based on Foata normal form. 12/495 useless extension candidates. Maximal degree in co-relation 1353. Up to 300 conditions per place. [2024-11-17 03:34:21,055 INFO L140 encePairwiseOnDemand]: 48/56 looper letters, 48 selfloop transitions, 6 changer transitions 9/68 dead transitions. [2024-11-17 03:34:21,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 68 transitions, 394 flow [2024-11-17 03:34:21,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:34:21,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:34:21,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 106 transitions. [2024-11-17 03:34:21,057 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.37857142857142856 [2024-11-17 03:34:21,057 INFO L175 Difference]: Start difference. First operand has 86 places, 64 transitions, 292 flow. Second operand 5 states and 106 transitions. [2024-11-17 03:34:21,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 68 transitions, 394 flow [2024-11-17 03:34:21,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 68 transitions, 344 flow, removed 4 selfloop flow, removed 11 redundant places. [2024-11-17 03:34:21,060 INFO L231 Difference]: Finished difference. Result has 70 places, 52 transitions, 180 flow [2024-11-17 03:34:21,060 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=180, PETRI_PLACES=70, PETRI_TRANSITIONS=52} [2024-11-17 03:34:21,061 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 12 predicate places. [2024-11-17 03:34:21,061 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 52 transitions, 180 flow [2024-11-17 03:34:21,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-11-17 03:34:21,062 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:34:21,062 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:34:21,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-17 03:34:21,062 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:34:21,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:34:21,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1233613618, now seen corresponding path program 2 times [2024-11-17 03:34:21,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:34:21,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954463831] [2024-11-17 03:34:21,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:34:21,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:34:21,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:34:21,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:34:21,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:34:21,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954463831] [2024-11-17 03:34:21,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954463831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:34:21,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:34:21,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-17 03:34:21,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574287620] [2024-11-17 03:34:21,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:34:21,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 03:34:21,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:34:21,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 03:34:21,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-17 03:34:21,224 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 56 [2024-11-17 03:34:21,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 52 transitions, 180 flow. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 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) [2024-11-17 03:34:21,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:34:21,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 56 [2024-11-17 03:34:21,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:34:21,344 INFO L124 PetriNetUnfolderBase]: 88/221 cut-off events. [2024-11-17 03:34:21,344 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-11-17 03:34:21,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 573 conditions, 221 events. 88/221 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 651 event pairs, 22 based on Foata normal form. 10/231 useless extension candidates. Maximal degree in co-relation 562. Up to 52 conditions per place. [2024-11-17 03:34:21,345 INFO L140 encePairwiseOnDemand]: 48/56 looper letters, 0 selfloop transitions, 0 changer transitions 49/49 dead transitions. [2024-11-17 03:34:21,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 49 transitions, 244 flow [2024-11-17 03:34:21,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 03:34:21,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 03:34:21,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 109 transitions. [2024-11-17 03:34:21,346 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2780612244897959 [2024-11-17 03:34:21,346 INFO L175 Difference]: Start difference. First operand has 70 places, 52 transitions, 180 flow. Second operand 7 states and 109 transitions. [2024-11-17 03:34:21,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 49 transitions, 244 flow [2024-11-17 03:34:21,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 49 transitions, 206 flow, removed 3 selfloop flow, removed 9 redundant places. [2024-11-17 03:34:21,348 INFO L231 Difference]: Finished difference. Result has 52 places, 0 transitions, 0 flow [2024-11-17 03:34:21,348 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=52, PETRI_TRANSITIONS=0} [2024-11-17 03:34:21,349 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, -6 predicate places. [2024-11-17 03:34:21,349 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 0 transitions, 0 flow [2024-11-17 03:34:21,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 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) [2024-11-17 03:34:21,352 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-11-17 03:34:21,352 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-17 03:34:21,352 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-17 03:34:21,352 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-17 03:34:21,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-17 03:34:21,353 INFO L407 BasicCegarLoop]: Path program histogram: [8, 2, 2] [2024-11-17 03:34:21,356 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-17 03:34:21,356 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 03:34:21,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 03:34:21 BasicIcfg [2024-11-17 03:34:21,361 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 03:34:21,362 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 03:34:21,362 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 03:34:21,362 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 03:34:21,362 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:34:15" (3/4) ... [2024-11-17 03:34:21,366 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-17 03:34:21,369 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-17 03:34:21,369 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-17 03:34:21,374 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2024-11-17 03:34:21,374 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-17 03:34:21,375 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-17 03:34:21,375 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-17 03:34:21,456 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 03:34:21,457 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-17 03:34:21,457 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 03:34:21,457 INFO L158 Benchmark]: Toolchain (without parser) took 6700.40ms. Allocated memory was 174.1MB in the beginning and 260.0MB in the end (delta: 86.0MB). Free memory was 143.3MB in the beginning and 145.0MB in the end (delta: -1.7MB). Peak memory consumption was 84.8MB. Max. memory is 16.1GB. [2024-11-17 03:34:21,458 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 130.0MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 03:34:21,458 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.40ms. Allocated memory is still 174.1MB. Free memory was 143.3MB in the beginning and 130.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-17 03:34:21,458 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.69ms. Allocated memory is still 174.1MB. Free memory was 130.2MB in the beginning and 128.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 03:34:21,459 INFO L158 Benchmark]: Boogie Preprocessor took 36.26ms. Allocated memory is still 174.1MB. Free memory was 128.1MB in the beginning and 126.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 03:34:21,459 INFO L158 Benchmark]: IcfgBuilder took 531.51ms. Allocated memory is still 174.1MB. Free memory was 126.0MB in the beginning and 95.6MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-17 03:34:21,459 INFO L158 Benchmark]: TraceAbstraction took 5658.62ms. Allocated memory was 174.1MB in the beginning and 260.0MB in the end (delta: 86.0MB). Free memory was 95.6MB in the beginning and 149.2MB in the end (delta: -53.6MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2024-11-17 03:34:21,460 INFO L158 Benchmark]: Witness Printer took 94.93ms. Allocated memory is still 260.0MB. Free memory was 149.2MB in the beginning and 145.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 03:34:21,461 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 130.0MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.40ms. Allocated memory is still 174.1MB. Free memory was 143.3MB in the beginning and 130.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.69ms. Allocated memory is still 174.1MB. Free memory was 130.2MB in the beginning and 128.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.26ms. Allocated memory is still 174.1MB. Free memory was 128.1MB in the beginning and 126.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 531.51ms. Allocated memory is still 174.1MB. Free memory was 126.0MB in the beginning and 95.6MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5658.62ms. Allocated memory was 174.1MB in the beginning and 260.0MB in the end (delta: 86.0MB). Free memory was 95.6MB in the beginning and 149.2MB in the end (delta: -53.6MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. * Witness Printer took 94.93ms. Allocated memory is still 260.0MB. Free memory was 149.2MB in the beginning and 145.0MB 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: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 77]: 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 5 procedures, 85 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.5s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 586 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 515 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2574 IncrementalHoareTripleChecker+Invalid, 2604 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 8 mSDtfsCounter, 2574 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=401occurred in iteration=4, InterpolantAutomatonStates: 70, 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, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 568 NumberOfCodeBlocks, 568 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 556 ConstructedInterpolants, 0 QuantifiedInterpolants, 1254 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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! [2024-11-17 03:34:21,489 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