./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/parallel-misc-3-extended.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/weaver/parallel-misc-3-extended.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 8cea87724a542982ff884c708bfc22195aa1904db80300e5b965108c3d86cb2f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 18:16:18,181 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 18:16:18,257 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-10 18:16:18,262 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 18:16:18,262 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 18:16:18,290 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 18:16:18,292 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 18:16:18,293 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 18:16:18,294 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 18:16:18,296 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 18:16:18,296 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 18:16:18,297 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 18:16:18,297 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 18:16:18,299 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 18:16:18,300 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 18:16:18,300 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 18:16:18,300 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 18:16:18,301 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 18:16:18,301 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 18:16:18,301 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 18:16:18,302 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-10 18:16:18,305 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-10 18:16:18,305 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-10 18:16:18,305 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 18:16:18,305 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 18:16:18,306 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 18:16:18,306 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 18:16:18,306 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 18:16:18,307 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 18:16:18,307 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 18:16:18,308 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 18:16:18,308 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 18:16:18,308 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 18:16:18,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:16:18,309 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 18:16:18,309 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 18:16:18,310 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 18:16:18,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 18:16:18,310 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 18:16:18,310 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 18:16:18,311 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 18:16:18,311 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 18:16:18,312 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8cea87724a542982ff884c708bfc22195aa1904db80300e5b965108c3d86cb2f [2024-11-10 18:16:18,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 18:16:18,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 18:16:18,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 18:16:18,633 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 18:16:18,633 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 18:16:18,635 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-misc-3-extended.wvr.c [2024-11-10 18:16:20,185 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 18:16:20,435 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 18:16:20,435 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-misc-3-extended.wvr.c [2024-11-10 18:16:20,449 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9bda38fb/88b2e076d69e4b6c986a7c9766ccc412/FLAGd02c9f787 [2024-11-10 18:16:20,466 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9bda38fb/88b2e076d69e4b6c986a7c9766ccc412 [2024-11-10 18:16:20,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 18:16:20,474 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 18:16:20,476 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 18:16:20,478 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 18:16:20,489 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 18:16:20,490 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:16:20" (1/1) ... [2024-11-10 18:16:20,491 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fc62f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:20, skipping insertion in model container [2024-11-10 18:16:20,492 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:16:20" (1/1) ... [2024-11-10 18:16:20,517 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 18:16:20,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:16:20,759 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 18:16:20,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:16:20,806 INFO L204 MainTranslator]: Completed translation [2024-11-10 18:16:20,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:20 WrapperNode [2024-11-10 18:16:20,807 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 18:16:20,808 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 18:16:20,808 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 18:16:20,808 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 18:16:20,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:20" (1/1) ... [2024-11-10 18:16:20,825 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:20" (1/1) ... [2024-11-10 18:16:20,841 INFO L138 Inliner]: procedures = 19, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2024-11-10 18:16:20,841 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 18:16:20,842 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 18:16:20,842 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 18:16:20,842 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 18:16:20,857 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:20" (1/1) ... [2024-11-10 18:16:20,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:20" (1/1) ... [2024-11-10 18:16:20,862 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:20" (1/1) ... [2024-11-10 18:16:20,882 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-10 18:16:20,883 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:20" (1/1) ... [2024-11-10 18:16:20,883 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:20" (1/1) ... [2024-11-10 18:16:20,889 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:20" (1/1) ... [2024-11-10 18:16:20,890 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:20" (1/1) ... [2024-11-10 18:16:20,892 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:20" (1/1) ... [2024-11-10 18:16:20,892 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:20" (1/1) ... [2024-11-10 18:16:20,898 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 18:16:20,899 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 18:16:20,899 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 18:16:20,899 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 18:16:20,903 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:20" (1/1) ... [2024-11-10 18:16:20,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:16:20,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:16:20,942 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 18:16:20,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 18:16:21,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 18:16:21,005 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-10 18:16:21,005 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-10 18:16:21,006 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-10 18:16:21,006 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-10 18:16:21,006 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-10 18:16:21,006 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-10 18:16:21,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 18:16:21,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 18:16:21,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 18:16:21,008 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 18:16:21,155 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 18:16:21,159 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 18:16:21,499 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 18:16:21,500 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 18:16:21,655 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 18:16:21,656 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 18:16:21,656 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:16:21 BoogieIcfgContainer [2024-11-10 18:16:21,656 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 18:16:21,659 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 18:16:21,659 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 18:16:21,665 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 18:16:21,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:16:20" (1/3) ... [2024-11-10 18:16:21,667 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70dee146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:16:21, skipping insertion in model container [2024-11-10 18:16:21,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:20" (2/3) ... [2024-11-10 18:16:21,668 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70dee146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:16:21, skipping insertion in model container [2024-11-10 18:16:21,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:16:21" (3/3) ... [2024-11-10 18:16:21,670 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-3-extended.wvr.c [2024-11-10 18:16:21,690 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 18:16:21,691 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 18:16:21,691 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 18:16:21,760 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-10 18:16:21,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 53 transitions, 127 flow [2024-11-10 18:16:21,832 INFO L124 PetriNetUnfolderBase]: 9/50 cut-off events. [2024-11-10 18:16:21,833 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-10 18:16:21,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 50 events. 9/50 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 111 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2024-11-10 18:16:21,838 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 53 transitions, 127 flow [2024-11-10 18:16:21,846 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 50 places, 49 transitions, 116 flow [2024-11-10 18:16:21,856 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 18:16:21,864 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;@4aa97995, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 18:16:21,865 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-10 18:16:21,878 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 18:16:21,879 INFO L124 PetriNetUnfolderBase]: 9/46 cut-off events. [2024-11-10 18:16:21,879 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-10 18:16:21,881 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:16:21,882 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] [2024-11-10 18:16:21,883 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 18:16:21,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:16:21,890 INFO L85 PathProgramCache]: Analyzing trace with hash 874521292, now seen corresponding path program 1 times [2024-11-10 18:16:21,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:16:21,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844995069] [2024-11-10 18:16:21,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:16:21,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:16:22,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:16:22,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:16:22,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:16:22,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844995069] [2024-11-10 18:16:22,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844995069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:16:22,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:16:22,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:16:22,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437883482] [2024-11-10 18:16:22,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:16:22,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 18:16:22,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:16:22,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 18:16:22,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 18:16:22,157 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 53 [2024-11-10 18:16:22,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 49 transitions, 116 flow. Second operand has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:22,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:16:22,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 53 [2024-11-10 18:16:22,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:16:22,529 INFO L124 PetriNetUnfolderBase]: 826/1611 cut-off events. [2024-11-10 18:16:22,530 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2024-11-10 18:16:22,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2730 conditions, 1611 events. 826/1611 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 10284 event pairs, 341 based on Foata normal form. 258/1423 useless extension candidates. Maximal degree in co-relation 2507. Up to 1042 conditions per place. [2024-11-10 18:16:22,554 INFO L140 encePairwiseOnDemand]: 49/53 looper letters, 23 selfloop transitions, 0 changer transitions 0/44 dead transitions. [2024-11-10 18:16:22,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 44 transitions, 152 flow [2024-11-10 18:16:22,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 18:16:22,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 18:16:22,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 77 transitions. [2024-11-10 18:16:22,569 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7264150943396226 [2024-11-10 18:16:22,571 INFO L175 Difference]: Start difference. First operand has 50 places, 49 transitions, 116 flow. Second operand 2 states and 77 transitions. [2024-11-10 18:16:22,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 44 transitions, 152 flow [2024-11-10 18:16:22,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 44 transitions, 140 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-10 18:16:22,582 INFO L231 Difference]: Finished difference. Result has 43 places, 44 transitions, 94 flow [2024-11-10 18:16:22,586 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=94, PETRI_PLACES=43, PETRI_TRANSITIONS=44} [2024-11-10 18:16:22,591 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, -7 predicate places. [2024-11-10 18:16:22,594 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 44 transitions, 94 flow [2024-11-10 18:16:22,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:22,595 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:16:22,595 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] [2024-11-10 18:16:22,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 18:16:22,597 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 18:16:22,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:16:22,599 INFO L85 PathProgramCache]: Analyzing trace with hash -543946088, now seen corresponding path program 1 times [2024-11-10 18:16:22,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:16:22,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772329678] [2024-11-10 18:16:22,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:16:22,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:16:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:16:22,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:16:22,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:16:22,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772329678] [2024-11-10 18:16:22,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772329678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:16:22,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:16:22,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:16:22,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105431354] [2024-11-10 18:16:22,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:16:22,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:16:22,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:16:22,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:16:22,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:16:22,769 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 53 [2024-11-10 18:16:22,770 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 44 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:22,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:16:22,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 53 [2024-11-10 18:16:22,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:16:23,065 INFO L124 PetriNetUnfolderBase]: 996/1845 cut-off events. [2024-11-10 18:16:23,067 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-10 18:16:23,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3122 conditions, 1845 events. 996/1845 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 11219 event pairs, 94 based on Foata normal form. 1/1531 useless extension candidates. Maximal degree in co-relation 3119. Up to 1177 conditions per place. [2024-11-10 18:16:23,080 INFO L140 encePairwiseOnDemand]: 45/53 looper letters, 32 selfloop transitions, 7 changer transitions 1/61 dead transitions. [2024-11-10 18:16:23,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 61 transitions, 213 flow [2024-11-10 18:16:23,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:16:23,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:16:23,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2024-11-10 18:16:23,084 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7295597484276729 [2024-11-10 18:16:23,084 INFO L175 Difference]: Start difference. First operand has 43 places, 44 transitions, 94 flow. Second operand 3 states and 116 transitions. [2024-11-10 18:16:23,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 61 transitions, 213 flow [2024-11-10 18:16:23,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 61 transitions, 213 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 18:16:23,088 INFO L231 Difference]: Finished difference. Result has 46 places, 50 transitions, 141 flow [2024-11-10 18:16:23,091 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=141, PETRI_PLACES=46, PETRI_TRANSITIONS=50} [2024-11-10 18:16:23,092 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, -4 predicate places. [2024-11-10 18:16:23,092 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 50 transitions, 141 flow [2024-11-10 18:16:23,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:23,093 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:16:23,093 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:16:23,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 18:16:23,094 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 18:16:23,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:16:23,095 INFO L85 PathProgramCache]: Analyzing trace with hash 120671339, now seen corresponding path program 1 times [2024-11-10 18:16:23,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:16:23,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177275085] [2024-11-10 18:16:23,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:16:23,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:16:23,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:16:23,261 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 18:16:23,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:16:23,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177275085] [2024-11-10 18:16:23,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177275085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:16:23,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:16:23,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:16:23,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888589123] [2024-11-10 18:16:23,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:16:23,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:16:23,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:16:23,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:16:23,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:16:23,268 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 53 [2024-11-10 18:16:23,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 50 transitions, 141 flow. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:23,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:16:23,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 53 [2024-11-10 18:16:23,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:16:23,562 INFO L124 PetriNetUnfolderBase]: 1302/2224 cut-off events. [2024-11-10 18:16:23,563 INFO L125 PetriNetUnfolderBase]: For 642/642 co-relation queries the response was YES. [2024-11-10 18:16:23,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4722 conditions, 2224 events. 1302/2224 cut-off events. For 642/642 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 13217 event pairs, 146 based on Foata normal form. 48/1969 useless extension candidates. Maximal degree in co-relation 4717. Up to 1094 conditions per place. [2024-11-10 18:16:23,583 INFO L140 encePairwiseOnDemand]: 50/53 looper letters, 44 selfloop transitions, 2 changer transitions 0/66 dead transitions. [2024-11-10 18:16:23,583 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 66 transitions, 279 flow [2024-11-10 18:16:23,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:16:23,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:16:23,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 113 transitions. [2024-11-10 18:16:23,588 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.710691823899371 [2024-11-10 18:16:23,588 INFO L175 Difference]: Start difference. First operand has 46 places, 50 transitions, 141 flow. Second operand 3 states and 113 transitions. [2024-11-10 18:16:23,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 66 transitions, 279 flow [2024-11-10 18:16:23,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 66 transitions, 270 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-10 18:16:23,592 INFO L231 Difference]: Finished difference. Result has 48 places, 51 transitions, 144 flow [2024-11-10 18:16:23,593 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=144, PETRI_PLACES=48, PETRI_TRANSITIONS=51} [2024-11-10 18:16:23,594 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, -2 predicate places. [2024-11-10 18:16:23,594 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 51 transitions, 144 flow [2024-11-10 18:16:23,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:23,595 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:16:23,596 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:16:23,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 18:16:23,596 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 18:16:23,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:16:23,598 INFO L85 PathProgramCache]: Analyzing trace with hash 399016283, now seen corresponding path program 1 times [2024-11-10 18:16:23,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:16:23,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731814222] [2024-11-10 18:16:23,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:16:23,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:16:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:16:23,709 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:16:23,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:16:23,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731814222] [2024-11-10 18:16:23,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731814222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:16:23,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:16:23,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:16:23,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229627163] [2024-11-10 18:16:23,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:16:23,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:16:23,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:16:23,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:16:23,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:16:23,717 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 53 [2024-11-10 18:16:23,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 51 transitions, 144 flow. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:23,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:16:23,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 53 [2024-11-10 18:16:23,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:16:24,043 INFO L124 PetriNetUnfolderBase]: 1435/2504 cut-off events. [2024-11-10 18:16:24,045 INFO L125 PetriNetUnfolderBase]: For 902/902 co-relation queries the response was YES. [2024-11-10 18:16:24,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5502 conditions, 2504 events. 1435/2504 cut-off events. For 902/902 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 15722 event pairs, 204 based on Foata normal form. 63/2163 useless extension candidates. Maximal degree in co-relation 5496. Up to 1335 conditions per place. [2024-11-10 18:16:24,071 INFO L140 encePairwiseOnDemand]: 50/53 looper letters, 45 selfloop transitions, 2 changer transitions 0/67 dead transitions. [2024-11-10 18:16:24,072 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 67 transitions, 289 flow [2024-11-10 18:16:24,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:16:24,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:16:24,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 112 transitions. [2024-11-10 18:16:24,074 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7044025157232704 [2024-11-10 18:16:24,076 INFO L175 Difference]: Start difference. First operand has 48 places, 51 transitions, 144 flow. Second operand 3 states and 112 transitions. [2024-11-10 18:16:24,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 67 transitions, 289 flow [2024-11-10 18:16:24,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 67 transitions, 286 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 18:16:24,079 INFO L231 Difference]: Finished difference. Result has 50 places, 52 transitions, 154 flow [2024-11-10 18:16:24,081 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=50, PETRI_TRANSITIONS=52} [2024-11-10 18:16:24,082 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, 0 predicate places. [2024-11-10 18:16:24,082 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 52 transitions, 154 flow [2024-11-10 18:16:24,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:24,083 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:16:24,083 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:16:24,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 18:16:24,084 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 18:16:24,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:16:24,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1644302318, now seen corresponding path program 1 times [2024-11-10 18:16:24,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:16:24,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414114833] [2024-11-10 18:16:24,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:16:24,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:16:24,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:16:24,200 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 18:16:24,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:16:24,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414114833] [2024-11-10 18:16:24,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414114833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:16:24,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:16:24,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:16:24,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182947398] [2024-11-10 18:16:24,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:16:24,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:16:24,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:16:24,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:16:24,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:16:24,209 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 53 [2024-11-10 18:16:24,210 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 52 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:24,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:16:24,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 53 [2024-11-10 18:16:24,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:16:24,509 INFO L124 PetriNetUnfolderBase]: 1633/2808 cut-off events. [2024-11-10 18:16:24,509 INFO L125 PetriNetUnfolderBase]: For 1163/1163 co-relation queries the response was YES. [2024-11-10 18:16:24,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6542 conditions, 2808 events. 1633/2808 cut-off events. For 1163/1163 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 17793 event pairs, 321 based on Foata normal form. 55/2580 useless extension candidates. Maximal degree in co-relation 6535. Up to 1323 conditions per place. [2024-11-10 18:16:24,541 INFO L140 encePairwiseOnDemand]: 50/53 looper letters, 46 selfloop transitions, 2 changer transitions 0/68 dead transitions. [2024-11-10 18:16:24,542 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 68 transitions, 305 flow [2024-11-10 18:16:24,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:16:24,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:16:24,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 111 transitions. [2024-11-10 18:16:24,544 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6981132075471698 [2024-11-10 18:16:24,544 INFO L175 Difference]: Start difference. First operand has 50 places, 52 transitions, 154 flow. Second operand 3 states and 111 transitions. [2024-11-10 18:16:24,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 68 transitions, 305 flow [2024-11-10 18:16:24,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 68 transitions, 302 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 18:16:24,548 INFO L231 Difference]: Finished difference. Result has 52 places, 53 transitions, 164 flow [2024-11-10 18:16:24,549 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=52, PETRI_TRANSITIONS=53} [2024-11-10 18:16:24,550 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, 2 predicate places. [2024-11-10 18:16:24,551 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 53 transitions, 164 flow [2024-11-10 18:16:24,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:24,552 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:16:24,552 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:16:24,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 18:16:24,552 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 18:16:24,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:16:24,553 INFO L85 PathProgramCache]: Analyzing trace with hash -2028608368, now seen corresponding path program 1 times [2024-11-10 18:16:24,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:16:24,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792511338] [2024-11-10 18:16:24,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:16:24,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:16:24,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:16:24,805 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-10 18:16:24,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:16:24,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792511338] [2024-11-10 18:16:24,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792511338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:16:24,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:16:24,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:16:24,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335242258] [2024-11-10 18:16:24,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:16:24,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:16:24,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:16:24,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:16:24,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:16:24,819 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 53 [2024-11-10 18:16:24,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 53 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:24,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:16:24,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 53 [2024-11-10 18:16:24,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:16:25,362 INFO L124 PetriNetUnfolderBase]: 3067/4763 cut-off events. [2024-11-10 18:16:25,362 INFO L125 PetriNetUnfolderBase]: For 1964/2112 co-relation queries the response was YES. [2024-11-10 18:16:25,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11720 conditions, 4763 events. 3067/4763 cut-off events. For 1964/2112 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 28186 event pairs, 492 based on Foata normal form. 66/4516 useless extension candidates. Maximal degree in co-relation 11712. Up to 1943 conditions per place. [2024-11-10 18:16:25,395 INFO L140 encePairwiseOnDemand]: 48/53 looper letters, 66 selfloop transitions, 5 changer transitions 0/89 dead transitions. [2024-11-10 18:16:25,396 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 89 transitions, 422 flow [2024-11-10 18:16:25,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:16:25,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 18:16:25,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 149 transitions. [2024-11-10 18:16:25,397 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7028301886792453 [2024-11-10 18:16:25,398 INFO L175 Difference]: Start difference. First operand has 52 places, 53 transitions, 164 flow. Second operand 4 states and 149 transitions. [2024-11-10 18:16:25,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 89 transitions, 422 flow [2024-11-10 18:16:25,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 89 transitions, 418 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 18:16:25,405 INFO L231 Difference]: Finished difference. Result has 56 places, 55 transitions, 194 flow [2024-11-10 18:16:25,406 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=194, PETRI_PLACES=56, PETRI_TRANSITIONS=55} [2024-11-10 18:16:25,407 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, 6 predicate places. [2024-11-10 18:16:25,408 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 55 transitions, 194 flow [2024-11-10 18:16:25,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:25,408 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:16:25,408 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:16:25,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 18:16:25,409 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 18:16:25,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:16:25,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1340590794, now seen corresponding path program 1 times [2024-11-10 18:16:25,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:16:25,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029380770] [2024-11-10 18:16:25,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:16:25,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:16:25,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:16:25,644 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-10 18:16:25,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:16:25,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029380770] [2024-11-10 18:16:25,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029380770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:16:25,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:16:25,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:16:25,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141007583] [2024-11-10 18:16:25,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:16:25,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:16:25,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:16:25,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:16:25,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:16:25,652 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 53 [2024-11-10 18:16:25,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 55 transitions, 194 flow. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:25,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:16:25,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 53 [2024-11-10 18:16:25,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:16:26,438 INFO L124 PetriNetUnfolderBase]: 4749/7148 cut-off events. [2024-11-10 18:16:26,440 INFO L125 PetriNetUnfolderBase]: For 5314/5714 co-relation queries the response was YES. [2024-11-10 18:16:26,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19171 conditions, 7148 events. 4749/7148 cut-off events. For 5314/5714 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 44824 event pairs, 1044 based on Foata normal form. 115/6715 useless extension candidates. Maximal degree in co-relation 19161. Up to 2845 conditions per place. [2024-11-10 18:16:26,511 INFO L140 encePairwiseOnDemand]: 48/53 looper letters, 69 selfloop transitions, 5 changer transitions 0/93 dead transitions. [2024-11-10 18:16:26,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 93 transitions, 494 flow [2024-11-10 18:16:26,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:16:26,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 18:16:26,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 147 transitions. [2024-11-10 18:16:26,513 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6933962264150944 [2024-11-10 18:16:26,513 INFO L175 Difference]: Start difference. First operand has 56 places, 55 transitions, 194 flow. Second operand 4 states and 147 transitions. [2024-11-10 18:16:26,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 93 transitions, 494 flow [2024-11-10 18:16:26,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 93 transitions, 488 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-11-10 18:16:26,519 INFO L231 Difference]: Finished difference. Result has 61 places, 57 transitions, 224 flow [2024-11-10 18:16:26,520 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=224, PETRI_PLACES=61, PETRI_TRANSITIONS=57} [2024-11-10 18:16:26,520 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, 11 predicate places. [2024-11-10 18:16:26,521 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 57 transitions, 224 flow [2024-11-10 18:16:26,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:26,521 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:16:26,521 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:16:26,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 18:16:26,522 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 18:16:26,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:16:26,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1827022443, now seen corresponding path program 1 times [2024-11-10 18:16:26,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:16:26,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493204419] [2024-11-10 18:16:26,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:16:26,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:16:26,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:16:26,923 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-10 18:16:26,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:16:26,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493204419] [2024-11-10 18:16:26,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493204419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:16:26,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:16:26,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:16:26,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091095459] [2024-11-10 18:16:26,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:16:26,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:16:26,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:16:26,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:16:26,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:16:26,940 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 53 [2024-11-10 18:16:26,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 57 transitions, 224 flow. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:26,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:16:26,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 53 [2024-11-10 18:16:26,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:16:28,165 INFO L124 PetriNetUnfolderBase]: 6702/10215 cut-off events. [2024-11-10 18:16:28,166 INFO L125 PetriNetUnfolderBase]: For 11137/11361 co-relation queries the response was YES. [2024-11-10 18:16:28,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29423 conditions, 10215 events. 6702/10215 cut-off events. For 11137/11361 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 68462 event pairs, 1732 based on Foata normal form. 153/9872 useless extension candidates. Maximal degree in co-relation 29410. Up to 3813 conditions per place. [2024-11-10 18:16:28,282 INFO L140 encePairwiseOnDemand]: 48/53 looper letters, 72 selfloop transitions, 5 changer transitions 0/97 dead transitions. [2024-11-10 18:16:28,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 97 transitions, 564 flow [2024-11-10 18:16:28,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:16:28,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 18:16:28,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 145 transitions. [2024-11-10 18:16:28,284 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6839622641509434 [2024-11-10 18:16:28,284 INFO L175 Difference]: Start difference. First operand has 61 places, 57 transitions, 224 flow. Second operand 4 states and 145 transitions. [2024-11-10 18:16:28,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 97 transitions, 564 flow [2024-11-10 18:16:28,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 97 transitions, 558 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-11-10 18:16:28,291 INFO L231 Difference]: Finished difference. Result has 66 places, 59 transitions, 254 flow [2024-11-10 18:16:28,292 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=254, PETRI_PLACES=66, PETRI_TRANSITIONS=59} [2024-11-10 18:16:28,292 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, 16 predicate places. [2024-11-10 18:16:28,293 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 59 transitions, 254 flow [2024-11-10 18:16:28,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:28,293 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:16:28,293 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:16:28,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 18:16:28,294 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 18:16:28,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:16:28,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1467173835, now seen corresponding path program 1 times [2024-11-10 18:16:28,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:16:28,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339949329] [2024-11-10 18:16:28,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:16:28,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:16:28,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:16:28,700 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-10 18:16:28,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:16:28,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339949329] [2024-11-10 18:16:28,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339949329] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:16:28,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860182076] [2024-11-10 18:16:28,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:16:28,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:16:28,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:16:28,708 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:16:28,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 18:16:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:16:28,805 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-10 18:16:28,811 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:16:28,952 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-10 18:16:28,954 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:16:29,066 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-10 18:16:29,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860182076] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:16:29,067 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:16:29,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-11-10 18:16:29,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45449911] [2024-11-10 18:16:29,068 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:16:29,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:16:29,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:16:29,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:16:29,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:16:29,070 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 53 [2024-11-10 18:16:29,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 59 transitions, 254 flow. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:29,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:16:29,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 53 [2024-11-10 18:16:29,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:16:32,092 INFO L124 PetriNetUnfolderBase]: 13709/24867 cut-off events. [2024-11-10 18:16:32,092 INFO L125 PetriNetUnfolderBase]: For 27627/27666 co-relation queries the response was YES. [2024-11-10 18:16:32,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70433 conditions, 24867 events. 13709/24867 cut-off events. For 27627/27666 co-relation queries the response was YES. Maximal size of possible extension queue 754. Compared 205027 event pairs, 2551 based on Foata normal form. 1/24502 useless extension candidates. Maximal degree in co-relation 70417. Up to 8575 conditions per place. [2024-11-10 18:16:32,373 INFO L140 encePairwiseOnDemand]: 45/53 looper letters, 99 selfloop transitions, 22 changer transitions 1/146 dead transitions. [2024-11-10 18:16:32,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 146 transitions, 888 flow [2024-11-10 18:16:32,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:16:32,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 18:16:32,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 211 transitions. [2024-11-10 18:16:32,375 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7962264150943397 [2024-11-10 18:16:32,375 INFO L175 Difference]: Start difference. First operand has 66 places, 59 transitions, 254 flow. Second operand 5 states and 211 transitions. [2024-11-10 18:16:32,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 146 transitions, 888 flow [2024-11-10 18:16:32,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 146 transitions, 880 flow, removed 4 selfloop flow, removed 0 redundant places. [2024-11-10 18:16:32,390 INFO L231 Difference]: Finished difference. Result has 71 places, 77 transitions, 395 flow [2024-11-10 18:16:32,391 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=395, PETRI_PLACES=71, PETRI_TRANSITIONS=77} [2024-11-10 18:16:32,392 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, 21 predicate places. [2024-11-10 18:16:32,393 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 77 transitions, 395 flow [2024-11-10 18:16:32,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:32,393 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:16:32,394 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:16:32,416 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 18:16:32,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:16:32,599 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 18:16:32,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:16:32,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1529762769, now seen corresponding path program 2 times [2024-11-10 18:16:32,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:16:32,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921686034] [2024-11-10 18:16:32,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:16:32,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:16:32,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:16:32,789 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 18:16:32,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:16:32,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921686034] [2024-11-10 18:16:32,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921686034] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:16:32,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304738666] [2024-11-10 18:16:32,791 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 18:16:32,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:16:32,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:16:32,796 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:16:32,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 18:16:33,058 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 18:16:33,059 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:16:33,062 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-10 18:16:33,067 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:16:33,166 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 18:16:33,167 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:16:33,274 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 18:16:33,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304738666] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:16:33,275 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:16:33,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-11-10 18:16:33,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515187232] [2024-11-10 18:16:33,276 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:16:33,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 18:16:33,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:16:33,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 18:16:33,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 18:16:33,279 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 53 [2024-11-10 18:16:33,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 77 transitions, 395 flow. Second operand has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 6 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:33,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:16:33,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 53 [2024-11-10 18:16:33,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:16:38,600 INFO L124 PetriNetUnfolderBase]: 25729/46581 cut-off events. [2024-11-10 18:16:38,600 INFO L125 PetriNetUnfolderBase]: For 71028/71199 co-relation queries the response was YES. [2024-11-10 18:16:38,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146776 conditions, 46581 events. 25729/46581 cut-off events. For 71028/71199 co-relation queries the response was YES. Maximal size of possible extension queue 1553. Compared 425397 event pairs, 2979 based on Foata normal form. 23/45946 useless extension candidates. Maximal degree in co-relation 146758. Up to 14115 conditions per place. [2024-11-10 18:16:39,184 INFO L140 encePairwiseOnDemand]: 45/53 looper letters, 123 selfloop transitions, 46 changer transitions 1/194 dead transitions. [2024-11-10 18:16:39,185 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 194 transitions, 1307 flow [2024-11-10 18:16:39,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 18:16:39,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 18:16:39,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 257 transitions. [2024-11-10 18:16:39,187 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8081761006289309 [2024-11-10 18:16:39,187 INFO L175 Difference]: Start difference. First operand has 71 places, 77 transitions, 395 flow. Second operand 6 states and 257 transitions. [2024-11-10 18:16:39,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 194 transitions, 1307 flow [2024-11-10 18:16:39,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 194 transitions, 1223 flow, removed 42 selfloop flow, removed 0 redundant places. [2024-11-10 18:16:39,230 INFO L231 Difference]: Finished difference. Result has 77 places, 101 transitions, 583 flow [2024-11-10 18:16:39,232 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=583, PETRI_PLACES=77, PETRI_TRANSITIONS=101} [2024-11-10 18:16:39,234 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, 27 predicate places. [2024-11-10 18:16:39,234 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 101 transitions, 583 flow [2024-11-10 18:16:39,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 6 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:39,235 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:16:39,235 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:16:39,253 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 18:16:39,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-10 18:16:39,436 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 18:16:39,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:16:39,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1585804505, now seen corresponding path program 3 times [2024-11-10 18:16:39,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:16:39,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608823103] [2024-11-10 18:16:39,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:16:39,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:16:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:16:39,704 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:16:39,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:16:39,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608823103] [2024-11-10 18:16:39,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608823103] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:16:39,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666028642] [2024-11-10 18:16:39,710 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-10 18:16:39,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:16:39,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:16:39,713 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:16:39,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 18:16:39,957 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-10 18:16:39,957 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:16:39,961 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-10 18:16:39,963 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:16:40,060 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:16:40,061 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:16:40,150 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:16:40,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666028642] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:16:40,151 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:16:40,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2024-11-10 18:16:40,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908260417] [2024-11-10 18:16:40,151 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:16:40,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 18:16:40,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:16:40,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 18:16:40,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 18:16:40,153 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 53 [2024-11-10 18:16:40,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 101 transitions, 583 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:40,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:16:40,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 53 [2024-11-10 18:16:40,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:16:48,482 INFO L124 PetriNetUnfolderBase]: 41806/75811 cut-off events. [2024-11-10 18:16:48,483 INFO L125 PetriNetUnfolderBase]: For 124071/124254 co-relation queries the response was YES. [2024-11-10 18:16:48,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242172 conditions, 75811 events. 41806/75811 cut-off events. For 124071/124254 co-relation queries the response was YES. Maximal size of possible extension queue 2666. Compared 745712 event pairs, 4266 based on Foata normal form. 45/74576 useless extension candidates. Maximal degree in co-relation 242152. Up to 20701 conditions per place. [2024-11-10 18:16:49,550 INFO L140 encePairwiseOnDemand]: 45/53 looper letters, 146 selfloop transitions, 76 changer transitions 1/247 dead transitions. [2024-11-10 18:16:49,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 247 transitions, 1749 flow [2024-11-10 18:16:49,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 18:16:49,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 18:16:49,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 303 transitions. [2024-11-10 18:16:49,553 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.816711590296496 [2024-11-10 18:16:49,553 INFO L175 Difference]: Start difference. First operand has 77 places, 101 transitions, 583 flow. Second operand 7 states and 303 transitions. [2024-11-10 18:16:49,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 247 transitions, 1749 flow [2024-11-10 18:16:49,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 247 transitions, 1642 flow, removed 47 selfloop flow, removed 1 redundant places. [2024-11-10 18:16:49,635 INFO L231 Difference]: Finished difference. Result has 83 places, 131 transitions, 861 flow [2024-11-10 18:16:49,636 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=861, PETRI_PLACES=83, PETRI_TRANSITIONS=131} [2024-11-10 18:16:49,637 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, 33 predicate places. [2024-11-10 18:16:49,637 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 131 transitions, 861 flow [2024-11-10 18:16:49,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:49,637 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:16:49,638 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:16:49,657 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 18:16:49,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:16:49,842 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 18:16:49,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:16:49,843 INFO L85 PathProgramCache]: Analyzing trace with hash 202455211, now seen corresponding path program 4 times [2024-11-10 18:16:49,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:16:49,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826067346] [2024-11-10 18:16:49,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:16:49,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:16:49,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:16:50,037 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-10 18:16:50,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:16:50,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826067346] [2024-11-10 18:16:50,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826067346] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:16:50,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963490447] [2024-11-10 18:16:50,040 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-10 18:16:50,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:16:50,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:16:50,042 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:16:50,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 18:16:50,119 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-10 18:16:50,119 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:16:50,121 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-10 18:16:50,123 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:16:50,196 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-10 18:16:50,196 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:16:50,272 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-10 18:16:50,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963490447] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:16:50,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:16:50,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-11-10 18:16:50,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000801152] [2024-11-10 18:16:50,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:16:50,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 18:16:50,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:16:50,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 18:16:50,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 18:16:50,275 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 53 [2024-11-10 18:16:50,275 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 131 transitions, 861 flow. Second operand has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 6 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:50,275 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:16:50,275 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 53 [2024-11-10 18:16:50,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:17:01,378 INFO L124 PetriNetUnfolderBase]: 53494/97597 cut-off events. [2024-11-10 18:17:01,378 INFO L125 PetriNetUnfolderBase]: For 197203/197275 co-relation queries the response was YES. [2024-11-10 18:17:01,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325320 conditions, 97597 events. 53494/97597 cut-off events. For 197203/197275 co-relation queries the response was YES. Maximal size of possible extension queue 3455. Compared 1003609 event pairs, 11051 based on Foata normal form. 37/95379 useless extension candidates. Maximal degree in co-relation 325299. Up to 58696 conditions per place. [2024-11-10 18:17:02,384 INFO L140 encePairwiseOnDemand]: 45/53 looper letters, 185 selfloop transitions, 54 changer transitions 1/264 dead transitions. [2024-11-10 18:17:02,385 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 264 transitions, 2098 flow [2024-11-10 18:17:02,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 18:17:02,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 18:17:02,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 253 transitions. [2024-11-10 18:17:02,386 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7955974842767296 [2024-11-10 18:17:02,386 INFO L175 Difference]: Start difference. First operand has 83 places, 131 transitions, 861 flow. Second operand 6 states and 253 transitions. [2024-11-10 18:17:02,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 264 transitions, 2098 flow [2024-11-10 18:17:02,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 264 transitions, 1984 flow, removed 40 selfloop flow, removed 1 redundant places. [2024-11-10 18:17:02,502 INFO L231 Difference]: Finished difference. Result has 90 places, 181 transitions, 1366 flow [2024-11-10 18:17:02,502 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=813, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1366, PETRI_PLACES=90, PETRI_TRANSITIONS=181} [2024-11-10 18:17:02,503 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, 40 predicate places. [2024-11-10 18:17:02,503 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 181 transitions, 1366 flow [2024-11-10 18:17:02,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 6 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:17:02,503 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:17:02,504 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:17:02,525 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 18:17:02,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:17:02,706 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 18:17:02,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:17:02,706 INFO L85 PathProgramCache]: Analyzing trace with hash 360908631, now seen corresponding path program 5 times [2024-11-10 18:17:02,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:17:02,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164923083] [2024-11-10 18:17:02,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:17:02,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:17:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:17:03,324 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:17:03,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:17:03,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164923083] [2024-11-10 18:17:03,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164923083] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:17:03,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825211549] [2024-11-10 18:17:03,326 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-10 18:17:03,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:17:03,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:17:03,328 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:17:03,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 18:17:03,406 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-10 18:17:03,406 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:17:03,408 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-10 18:17:03,410 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:17:03,481 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:17:03,481 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:17:03,546 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:17:03,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825211549] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:17:03,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:17:03,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 7 [2024-11-10 18:17:03,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729562515] [2024-11-10 18:17:03,547 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:17:03,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 18:17:03,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:17:03,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 18:17:03,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-10 18:17:03,551 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 53 [2024-11-10 18:17:03,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 181 transitions, 1366 flow. Second operand has 8 states, 8 states have (on average 28.25) internal successors, (226), 8 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:17:03,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:17:03,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 53 [2024-11-10 18:17:03,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:17:20,400 INFO L124 PetriNetUnfolderBase]: 72131/130787 cut-off events. [2024-11-10 18:17:20,401 INFO L125 PetriNetUnfolderBase]: For 274865/275213 co-relation queries the response was YES. [2024-11-10 18:17:21,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438437 conditions, 130787 events. 72131/130787 cut-off events. For 274865/275213 co-relation queries the response was YES. Maximal size of possible extension queue 5005. Compared 1386587 event pairs, 6874 based on Foata normal form. 109/128278 useless extension candidates. Maximal degree in co-relation 438413. Up to 23338 conditions per place. [2024-11-10 18:17:21,895 INFO L140 encePairwiseOnDemand]: 45/53 looper letters, 170 selfloop transitions, 162 changer transitions 1/357 dead transitions. [2024-11-10 18:17:21,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 357 transitions, 2902 flow [2024-11-10 18:17:21,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 18:17:21,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 18:17:21,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 349 transitions. [2024-11-10 18:17:21,896 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8231132075471698 [2024-11-10 18:17:21,896 INFO L175 Difference]: Start difference. First operand has 90 places, 181 transitions, 1366 flow. Second operand 8 states and 349 transitions. [2024-11-10 18:17:21,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 357 transitions, 2902 flow [2024-11-10 18:17:22,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 357 transitions, 2890 flow, removed 6 selfloop flow, removed 0 redundant places. [2024-11-10 18:17:22,093 INFO L231 Difference]: Finished difference. Result has 98 places, 217 transitions, 1967 flow [2024-11-10 18:17:22,095 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1354, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=132, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1967, PETRI_PLACES=98, PETRI_TRANSITIONS=217} [2024-11-10 18:17:22,096 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, 48 predicate places. [2024-11-10 18:17:22,096 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 217 transitions, 1967 flow [2024-11-10 18:17:22,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 28.25) internal successors, (226), 8 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:17:22,096 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:17:22,097 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:17:22,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-10 18:17:22,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-10 18:17:22,297 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 18:17:22,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:17:22,298 INFO L85 PathProgramCache]: Analyzing trace with hash 656593146, now seen corresponding path program 6 times [2024-11-10 18:17:22,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:17:22,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734891875] [2024-11-10 18:17:22,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:17:22,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:17:22,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:17:22,742 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 18:17:22,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:17:22,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734891875] [2024-11-10 18:17:22,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734891875] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:17:22,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854668407] [2024-11-10 18:17:22,743 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-10 18:17:22,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:17:22,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:17:22,746 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:17:23,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 18:17:23,233 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-10 18:17:23,233 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:17:23,234 INFO L255 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-10 18:17:23,237 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:17:23,343 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-10 18:17:23,344 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:17:23,502 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-10 18:17:23,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854668407] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-10 18:17:23,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-10 18:17:23,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 5] total 11 [2024-11-10 18:17:23,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892266441] [2024-11-10 18:17:23,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:17:23,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:17:23,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:17:23,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:17:23,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-10 18:17:23,513 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 53 [2024-11-10 18:17:23,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 217 transitions, 1967 flow. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:17:23,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:17:23,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 53 [2024-11-10 18:17:23,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand