./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe032_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe032_tso.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ffff09405c16ea86880fae0b9b6268edfa5ef4b2d03cee31a9e4f2e1ac044811 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 17:30:20,723 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 17:30:20,795 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-20 17:30:20,798 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 17:30:20,798 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 17:30:20,844 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 17:30:20,844 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 17:30:20,845 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 17:30:20,845 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 17:30:20,845 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 17:30:20,846 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 17:30:20,846 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 17:30:20,846 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 17:30:20,847 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 17:30:20,847 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 17:30:20,847 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 17:30:20,848 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 17:30:20,848 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 17:30:20,848 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 17:30:20,848 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 17:30:20,848 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 17:30:20,849 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 17:30:20,849 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 17:30:20,850 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 17:30:20,850 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 17:30:20,850 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 17:30:20,850 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 17:30:20,850 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 17:30:20,851 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 17:30:20,851 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 17:30:20,851 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 17:30:20,851 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 17:30:20,851 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 17:30:20,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:30:20,852 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 17:30:20,852 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 17:30:20,852 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 17:30:20,852 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 17:30:20,852 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 17:30:20,852 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 17:30:20,853 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 17:30:20,853 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 17:30:20,854 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ffff09405c16ea86880fae0b9b6268edfa5ef4b2d03cee31a9e4f2e1ac044811 [2024-11-20 17:30:21,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 17:30:21,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 17:30:21,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 17:30:21,096 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 17:30:21,096 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 17:30:21,097 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe032_tso.i [2024-11-20 17:30:22,399 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 17:30:22,656 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 17:30:22,656 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe032_tso.i [2024-11-20 17:30:22,673 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9050ec177/37ab88c8cbf54941803e38c70b20e099/FLAG36a06c288 [2024-11-20 17:30:22,686 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9050ec177/37ab88c8cbf54941803e38c70b20e099 [2024-11-20 17:30:22,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 17:30:22,690 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 17:30:22,691 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 17:30:22,691 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 17:30:22,695 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 17:30:22,696 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:30:22" (1/1) ... [2024-11-20 17:30:22,697 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bd10b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:30:22, skipping insertion in model container [2024-11-20 17:30:22,697 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:30:22" (1/1) ... [2024-11-20 17:30:22,727 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 17:30:23,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:30:23,054 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 17:30:23,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:30:23,129 INFO L204 MainTranslator]: Completed translation [2024-11-20 17:30:23,130 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:30:23 WrapperNode [2024-11-20 17:30:23,130 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 17:30:23,131 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 17:30:23,131 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 17:30:23,131 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 17:30:23,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:30:23" (1/1) ... [2024-11-20 17:30:23,149 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:30:23" (1/1) ... [2024-11-20 17:30:23,167 INFO L138 Inliner]: procedures = 175, calls = 46, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2024-11-20 17:30:23,167 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 17:30:23,168 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 17:30:23,168 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 17:30:23,168 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 17:30:23,177 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:30:23" (1/1) ... [2024-11-20 17:30:23,178 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:30:23" (1/1) ... [2024-11-20 17:30:23,181 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:30:23" (1/1) ... [2024-11-20 17:30:23,191 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]. [2024-11-20 17:30:23,192 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:30:23" (1/1) ... [2024-11-20 17:30:23,192 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:30:23" (1/1) ... [2024-11-20 17:30:23,195 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:30:23" (1/1) ... [2024-11-20 17:30:23,197 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:30:23" (1/1) ... [2024-11-20 17:30:23,198 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:30:23" (1/1) ... [2024-11-20 17:30:23,199 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:30:23" (1/1) ... [2024-11-20 17:30:23,204 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 17:30:23,205 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 17:30:23,206 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 17:30:23,206 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 17:30:23,207 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:30:23" (1/1) ... [2024-11-20 17:30:23,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:30:23,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:30:23,237 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) [2024-11-20 17:30:23,243 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 [2024-11-20 17:30:23,280 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-20 17:30:23,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 17:30:23,280 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-20 17:30:23,280 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-20 17:30:23,281 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-20 17:30:23,281 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-20 17:30:23,281 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-20 17:30:23,281 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-20 17:30:23,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 17:30:23,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-20 17:30:23,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 17:30:23,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 17:30:23,283 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 17:30:23,378 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 17:30:23,380 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 17:30:23,535 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 17:30:23,535 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 17:30:23,607 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 17:30:23,607 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 17:30:23,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:30:23 BoogieIcfgContainer [2024-11-20 17:30:23,607 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 17:30:23,609 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 17:30:23,610 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 17:30:23,612 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 17:30:23,613 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:30:22" (1/3) ... [2024-11-20 17:30:23,613 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42e5bffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:30:23, skipping insertion in model container [2024-11-20 17:30:23,613 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:30:23" (2/3) ... [2024-11-20 17:30:23,613 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42e5bffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:30:23, skipping insertion in model container [2024-11-20 17:30:23,614 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:30:23" (3/3) ... [2024-11-20 17:30:23,615 INFO L112 eAbstractionObserver]: Analyzing ICFG safe032_tso.i [2024-11-20 17:30:23,629 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 17:30:23,630 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-20 17:30:23,630 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 17:30:23,669 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 17:30:23,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 53 places, 45 transitions, 102 flow [2024-11-20 17:30:23,723 INFO L124 PetriNetUnfolderBase]: 2/42 cut-off events. [2024-11-20 17:30:23,724 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:30:23,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 42 events. 2/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 78 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2024-11-20 17:30:23,727 INFO L82 GeneralOperation]: Start removeDead. Operand has 53 places, 45 transitions, 102 flow [2024-11-20 17:30:23,730 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 41 transitions, 91 flow [2024-11-20 17:30:23,741 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 17:30:23,746 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;@7bc9c73, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 17:30:23,746 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-20 17:30:23,756 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 17:30:23,756 INFO L124 PetriNetUnfolderBase]: 2/39 cut-off events. [2024-11-20 17:30:23,757 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:30:23,757 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:30:23,758 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:30:23,758 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)] === [2024-11-20 17:30:23,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:30:23,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1454613537, now seen corresponding path program 1 times [2024-11-20 17:30:23,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:30:23,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922314925] [2024-11-20 17:30:23,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:30:23,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:30:23,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:30:24,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:30:24,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:30:24,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922314925] [2024-11-20 17:30:24,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922314925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:30:24,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:30:24,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 17:30:24,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591890021] [2024-11-20 17:30:24,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:30:24,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:30:24,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:30:24,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:30:24,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:30:24,133 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 45 [2024-11-20 17:30:24,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 91 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) [2024-11-20 17:30:24,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:30:24,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 45 [2024-11-20 17:30:24,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:30:24,208 INFO L124 PetriNetUnfolderBase]: 75/222 cut-off events. [2024-11-20 17:30:24,209 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:30:24,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 377 conditions, 222 events. 75/222 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1210 event pairs, 75 based on Foata normal form. 24/225 useless extension candidates. Maximal degree in co-relation 366. Up to 136 conditions per place. [2024-11-20 17:30:24,213 INFO L140 encePairwiseOnDemand]: 41/45 looper letters, 12 selfloop transitions, 1 changer transitions 1/37 dead transitions. [2024-11-20 17:30:24,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 37 transitions, 111 flow [2024-11-20 17:30:24,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:30:24,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:30:24,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 95 transitions. [2024-11-20 17:30:24,226 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7037037037037037 [2024-11-20 17:30:24,228 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 91 flow. Second operand 3 states and 95 transitions. [2024-11-20 17:30:24,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 37 transitions, 111 flow [2024-11-20 17:30:24,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 37 transitions, 108 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-20 17:30:24,235 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 80 flow [2024-11-20 17:30:24,237 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2024-11-20 17:30:24,240 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2024-11-20 17:30:24,241 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 80 flow [2024-11-20 17:30:24,241 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) [2024-11-20 17:30:24,241 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:30:24,241 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:30:24,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 17:30:24,242 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-20 17:30:24,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:30:24,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1454612013, now seen corresponding path program 1 times [2024-11-20 17:30:24,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:30:24,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370678798] [2024-11-20 17:30:24,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:30:24,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:30:24,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:30:24,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:30:24,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:30:24,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370678798] [2024-11-20 17:30:24,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370678798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:30:24,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:30:24,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:30:24,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925184183] [2024-11-20 17:30:24,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:30:24,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:30:24,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:30:24,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:30:24,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:30:24,523 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 45 [2024-11-20 17:30:24,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 80 flow. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:30:24,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:30:24,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 45 [2024-11-20 17:30:24,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:30:24,981 INFO L124 PetriNetUnfolderBase]: 1887/3308 cut-off events. [2024-11-20 17:30:24,981 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:30:24,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6168 conditions, 3308 events. 1887/3308 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 22799 event pairs, 448 based on Foata normal form. 0/3165 useless extension candidates. Maximal degree in co-relation 6162. Up to 1223 conditions per place. [2024-11-20 17:30:25,001 INFO L140 encePairwiseOnDemand]: 34/45 looper letters, 30 selfloop transitions, 7 changer transitions 61/113 dead transitions. [2024-11-20 17:30:25,001 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 113 transitions, 434 flow [2024-11-20 17:30:25,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 17:30:25,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 17:30:25,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 271 transitions. [2024-11-20 17:30:25,005 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6691358024691358 [2024-11-20 17:30:25,005 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 80 flow. Second operand 9 states and 271 transitions. [2024-11-20 17:30:25,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 113 transitions, 434 flow [2024-11-20 17:30:25,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 113 transitions, 433 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:30:25,010 INFO L231 Difference]: Finished difference. Result has 60 places, 41 transitions, 175 flow [2024-11-20 17:30:25,010 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=175, PETRI_PLACES=60, PETRI_TRANSITIONS=41} [2024-11-20 17:30:25,011 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 11 predicate places. [2024-11-20 17:30:25,011 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 41 transitions, 175 flow [2024-11-20 17:30:25,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:30:25,011 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:30:25,011 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:30:25,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 17:30:25,012 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-20 17:30:25,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:30:25,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1451683412, now seen corresponding path program 1 times [2024-11-20 17:30:25,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:30:25,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168611042] [2024-11-20 17:30:25,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:30:25,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:30:25,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:30:25,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:30:25,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:30:25,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168611042] [2024-11-20 17:30:25,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168611042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:30:25,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:30:25,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:30:25,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013983046] [2024-11-20 17:30:25,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:30:25,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 17:30:25,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:30:25,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 17:30:25,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 17:30:25,212 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 45 [2024-11-20 17:30:25,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 41 transitions, 175 flow. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2024-11-20 17:30:25,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:30:25,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 45 [2024-11-20 17:30:25,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:30:25,560 INFO L124 PetriNetUnfolderBase]: 1088/2139 cut-off events. [2024-11-20 17:30:25,561 INFO L125 PetriNetUnfolderBase]: For 4212/4219 co-relation queries the response was YES. [2024-11-20 17:30:25,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6600 conditions, 2139 events. 1088/2139 cut-off events. For 4212/4219 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 14642 event pairs, 218 based on Foata normal form. 81/2188 useless extension candidates. Maximal degree in co-relation 6585. Up to 610 conditions per place. [2024-11-20 17:30:25,572 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 40 selfloop transitions, 7 changer transitions 58/120 dead transitions. [2024-11-20 17:30:25,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 120 transitions, 825 flow [2024-11-20 17:30:25,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 17:30:25,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 17:30:25,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 280 transitions. [2024-11-20 17:30:25,575 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6222222222222222 [2024-11-20 17:30:25,575 INFO L175 Difference]: Start difference. First operand has 60 places, 41 transitions, 175 flow. Second operand 10 states and 280 transitions. [2024-11-20 17:30:25,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 120 transitions, 825 flow [2024-11-20 17:30:25,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 120 transitions, 711 flow, removed 26 selfloop flow, removed 4 redundant places. [2024-11-20 17:30:25,590 INFO L231 Difference]: Finished difference. Result has 67 places, 45 transitions, 231 flow [2024-11-20 17:30:25,591 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=231, PETRI_PLACES=67, PETRI_TRANSITIONS=45} [2024-11-20 17:30:25,592 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 18 predicate places. [2024-11-20 17:30:25,592 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 45 transitions, 231 flow [2024-11-20 17:30:25,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2024-11-20 17:30:25,593 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:30:25,593 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] [2024-11-20 17:30:25,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 17:30:25,593 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-20 17:30:25,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:30:25,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1725856304, now seen corresponding path program 1 times [2024-11-20 17:30:25,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:30:25,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667832763] [2024-11-20 17:30:25,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:30:25,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:30:25,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:30:25,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:30:25,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:30:25,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667832763] [2024-11-20 17:30:25,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667832763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:30:25,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:30:25,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:30:25,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607252801] [2024-11-20 17:30:25,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:30:25,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:30:25,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:30:25,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:30:25,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:30:25,704 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2024-11-20 17:30:25,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 45 transitions, 231 flow. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 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) [2024-11-20 17:30:25,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:30:25,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2024-11-20 17:30:25,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:30:25,906 INFO L124 PetriNetUnfolderBase]: 614/1483 cut-off events. [2024-11-20 17:30:25,906 INFO L125 PetriNetUnfolderBase]: For 3453/3555 co-relation queries the response was YES. [2024-11-20 17:30:25,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4206 conditions, 1483 events. 614/1483 cut-off events. For 3453/3555 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 11369 event pairs, 222 based on Foata normal form. 87/1445 useless extension candidates. Maximal degree in co-relation 4184. Up to 436 conditions per place. [2024-11-20 17:30:25,915 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 20 selfloop transitions, 5 changer transitions 22/73 dead transitions. [2024-11-20 17:30:25,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 73 transitions, 445 flow [2024-11-20 17:30:25,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 17:30:25,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-20 17:30:25,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 204 transitions. [2024-11-20 17:30:25,917 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6476190476190476 [2024-11-20 17:30:25,917 INFO L175 Difference]: Start difference. First operand has 67 places, 45 transitions, 231 flow. Second operand 7 states and 204 transitions. [2024-11-20 17:30:25,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 73 transitions, 445 flow [2024-11-20 17:30:25,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 73 transitions, 410 flow, removed 16 selfloop flow, removed 3 redundant places. [2024-11-20 17:30:25,924 INFO L231 Difference]: Finished difference. Result has 69 places, 45 transitions, 239 flow [2024-11-20 17:30:25,924 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=239, PETRI_PLACES=69, PETRI_TRANSITIONS=45} [2024-11-20 17:30:25,925 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 20 predicate places. [2024-11-20 17:30:25,925 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 45 transitions, 239 flow [2024-11-20 17:30:25,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 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) [2024-11-20 17:30:25,926 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:30:25,926 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] [2024-11-20 17:30:25,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 17:30:25,926 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-20 17:30:25,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:30:25,926 INFO L85 PathProgramCache]: Analyzing trace with hash 300460892, now seen corresponding path program 1 times [2024-11-20 17:30:25,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:30:25,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177025055] [2024-11-20 17:30:25,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:30:25,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:30:25,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:30:26,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:30:26,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:30:26,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177025055] [2024-11-20 17:30:26,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177025055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:30:26,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:30:26,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:30:26,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439687946] [2024-11-20 17:30:26,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:30:26,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:30:26,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:30:26,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:30:26,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:30:26,036 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2024-11-20 17:30:26,036 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 45 transitions, 239 flow. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 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) [2024-11-20 17:30:26,036 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:30:26,036 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2024-11-20 17:30:26,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:30:26,184 INFO L124 PetriNetUnfolderBase]: 503/1132 cut-off events. [2024-11-20 17:30:26,185 INFO L125 PetriNetUnfolderBase]: For 2631/2701 co-relation queries the response was YES. [2024-11-20 17:30:26,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3465 conditions, 1132 events. 503/1132 cut-off events. For 2631/2701 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 7308 event pairs, 154 based on Foata normal form. 53/1095 useless extension candidates. Maximal degree in co-relation 3440. Up to 543 conditions per place. [2024-11-20 17:30:26,192 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 24 selfloop transitions, 7 changer transitions 22/78 dead transitions. [2024-11-20 17:30:26,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 78 transitions, 531 flow [2024-11-20 17:30:26,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 17:30:26,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-20 17:30:26,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 207 transitions. [2024-11-20 17:30:26,194 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6571428571428571 [2024-11-20 17:30:26,194 INFO L175 Difference]: Start difference. First operand has 69 places, 45 transitions, 239 flow. Second operand 7 states and 207 transitions. [2024-11-20 17:30:26,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 78 transitions, 531 flow [2024-11-20 17:30:26,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 78 transitions, 474 flow, removed 26 selfloop flow, removed 9 redundant places. [2024-11-20 17:30:26,201 INFO L231 Difference]: Finished difference. Result has 67 places, 49 transitions, 275 flow [2024-11-20 17:30:26,201 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=275, PETRI_PLACES=67, PETRI_TRANSITIONS=49} [2024-11-20 17:30:26,201 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 18 predicate places. [2024-11-20 17:30:26,201 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 49 transitions, 275 flow [2024-11-20 17:30:26,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 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) [2024-11-20 17:30:26,202 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:30:26,202 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] [2024-11-20 17:30:26,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 17:30:26,202 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-20 17:30:26,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:30:26,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1836809999, now seen corresponding path program 1 times [2024-11-20 17:30:26,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:30:26,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855191754] [2024-11-20 17:30:26,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:30:26,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:30:26,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:30:26,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:30:26,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:30:26,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855191754] [2024-11-20 17:30:26,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855191754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:30:26,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:30:26,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:30:26,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328659237] [2024-11-20 17:30:26,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:30:26,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:30:26,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:30:26,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:30:26,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:30:26,289 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2024-11-20 17:30:26,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 49 transitions, 275 flow. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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) [2024-11-20 17:30:26,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:30:26,290 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2024-11-20 17:30:26,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:30:26,424 INFO L124 PetriNetUnfolderBase]: 690/1443 cut-off events. [2024-11-20 17:30:26,424 INFO L125 PetriNetUnfolderBase]: For 1629/1665 co-relation queries the response was YES. [2024-11-20 17:30:26,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3576 conditions, 1443 events. 690/1443 cut-off events. For 1629/1665 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 9170 event pairs, 166 based on Foata normal form. 72/1451 useless extension candidates. Maximal degree in co-relation 3553. Up to 635 conditions per place. [2024-11-20 17:30:26,433 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 27 selfloop transitions, 5 changer transitions 0/64 dead transitions. [2024-11-20 17:30:26,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 64 transitions, 373 flow [2024-11-20 17:30:26,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:30:26,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 17:30:26,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 126 transitions. [2024-11-20 17:30:26,434 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7 [2024-11-20 17:30:26,434 INFO L175 Difference]: Start difference. First operand has 67 places, 49 transitions, 275 flow. Second operand 4 states and 126 transitions. [2024-11-20 17:30:26,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 64 transitions, 373 flow [2024-11-20 17:30:26,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 64 transitions, 356 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-20 17:30:26,438 INFO L231 Difference]: Finished difference. Result has 63 places, 53 transitions, 296 flow [2024-11-20 17:30:26,438 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=296, PETRI_PLACES=63, PETRI_TRANSITIONS=53} [2024-11-20 17:30:26,439 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 14 predicate places. [2024-11-20 17:30:26,439 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 53 transitions, 296 flow [2024-11-20 17:30:26,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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) [2024-11-20 17:30:26,439 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:30:26,440 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:30:26,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 17:30:26,440 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-20 17:30:26,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:30:26,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1931504938, now seen corresponding path program 1 times [2024-11-20 17:30:26,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:30:26,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602175153] [2024-11-20 17:30:26,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:30:26,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:30:26,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:30:26,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:30:26,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:30:26,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602175153] [2024-11-20 17:30:26,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602175153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:30:26,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:30:26,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:30:26,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485353616] [2024-11-20 17:30:26,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:30:26,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:30:26,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:30:26,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:30:26,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:30:26,516 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2024-11-20 17:30:26,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 53 transitions, 296 flow. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 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) [2024-11-20 17:30:26,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:30:26,517 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2024-11-20 17:30:26,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:30:26,641 INFO L124 PetriNetUnfolderBase]: 504/1071 cut-off events. [2024-11-20 17:30:26,642 INFO L125 PetriNetUnfolderBase]: For 859/989 co-relation queries the response was YES. [2024-11-20 17:30:26,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2905 conditions, 1071 events. 504/1071 cut-off events. For 859/989 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 6177 event pairs, 56 based on Foata normal form. 81/1094 useless extension candidates. Maximal degree in co-relation 2883. Up to 380 conditions per place. [2024-11-20 17:30:26,648 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 30 selfloop transitions, 8 changer transitions 4/74 dead transitions. [2024-11-20 17:30:26,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 74 transitions, 443 flow [2024-11-20 17:30:26,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 17:30:26,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 17:30:26,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 159 transitions. [2024-11-20 17:30:26,649 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7066666666666667 [2024-11-20 17:30:26,649 INFO L175 Difference]: Start difference. First operand has 63 places, 53 transitions, 296 flow. Second operand 5 states and 159 transitions. [2024-11-20 17:30:26,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 74 transitions, 443 flow [2024-11-20 17:30:26,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 74 transitions, 436 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-20 17:30:26,654 INFO L231 Difference]: Finished difference. Result has 68 places, 56 transitions, 338 flow [2024-11-20 17:30:26,654 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=338, PETRI_PLACES=68, PETRI_TRANSITIONS=56} [2024-11-20 17:30:26,655 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 19 predicate places. [2024-11-20 17:30:26,655 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 56 transitions, 338 flow [2024-11-20 17:30:26,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 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) [2024-11-20 17:30:26,656 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:30:26,656 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:30:26,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 17:30:26,656 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-20 17:30:26,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:30:26,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1874127431, now seen corresponding path program 1 times [2024-11-20 17:30:26,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:30:26,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268541560] [2024-11-20 17:30:26,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:30:26,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:30:26,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:30:26,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:30:26,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:30:26,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268541560] [2024-11-20 17:30:26,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268541560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:30:26,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:30:26,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 17:30:26,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175743890] [2024-11-20 17:30:26,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:30:26,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 17:30:26,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:30:26,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 17:30:26,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 17:30:26,806 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 45 [2024-11-20 17:30:26,806 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 56 transitions, 338 flow. Second operand has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 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) [2024-11-20 17:30:26,806 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:30:26,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 45 [2024-11-20 17:30:26,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:30:27,078 INFO L124 PetriNetUnfolderBase]: 898/1959 cut-off events. [2024-11-20 17:30:27,078 INFO L125 PetriNetUnfolderBase]: For 4288/4479 co-relation queries the response was YES. [2024-11-20 17:30:27,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6419 conditions, 1959 events. 898/1959 cut-off events. For 4288/4479 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 14187 event pairs, 206 based on Foata normal form. 40/1851 useless extension candidates. Maximal degree in co-relation 6394. Up to 474 conditions per place. [2024-11-20 17:30:27,089 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 36 selfloop transitions, 13 changer transitions 28/99 dead transitions. [2024-11-20 17:30:27,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 99 transitions, 710 flow [2024-11-20 17:30:27,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 17:30:27,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-20 17:30:27,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 219 transitions. [2024-11-20 17:30:27,091 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6083333333333333 [2024-11-20 17:30:27,091 INFO L175 Difference]: Start difference. First operand has 68 places, 56 transitions, 338 flow. Second operand 8 states and 219 transitions. [2024-11-20 17:30:27,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 99 transitions, 710 flow [2024-11-20 17:30:27,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 99 transitions, 666 flow, removed 19 selfloop flow, removed 4 redundant places. [2024-11-20 17:30:27,100 INFO L231 Difference]: Finished difference. Result has 75 places, 53 transitions, 326 flow [2024-11-20 17:30:27,100 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=326, PETRI_PLACES=75, PETRI_TRANSITIONS=53} [2024-11-20 17:30:27,101 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 26 predicate places. [2024-11-20 17:30:27,101 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 53 transitions, 326 flow [2024-11-20 17:30:27,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 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) [2024-11-20 17:30:27,102 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:30:27,102 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:30:27,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 17:30:27,102 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-20 17:30:27,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:30:27,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1970939463, now seen corresponding path program 2 times [2024-11-20 17:30:27,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:30:27,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021273359] [2024-11-20 17:30:27,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:30:27,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:30:27,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:30:27,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:30:27,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:30:27,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021273359] [2024-11-20 17:30:27,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021273359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:30:27,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:30:27,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:30:27,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994204136] [2024-11-20 17:30:27,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:30:27,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 17:30:27,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:30:27,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 17:30:27,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-20 17:30:27,213 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2024-11-20 17:30:27,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 53 transitions, 326 flow. Second operand has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 6 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) [2024-11-20 17:30:27,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:30:27,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2024-11-20 17:30:27,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:30:27,347 INFO L124 PetriNetUnfolderBase]: 313/646 cut-off events. [2024-11-20 17:30:27,347 INFO L125 PetriNetUnfolderBase]: For 865/1356 co-relation queries the response was YES. [2024-11-20 17:30:27,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1945 conditions, 646 events. 313/646 cut-off events. For 865/1356 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3432 event pairs, 23 based on Foata normal form. 53/639 useless extension candidates. Maximal degree in co-relation 1926. Up to 288 conditions per place. [2024-11-20 17:30:27,350 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 0 selfloop transitions, 0 changer transitions 67/67 dead transitions. [2024-11-20 17:30:27,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 67 transitions, 428 flow [2024-11-20 17:30:27,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 17:30:27,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 17:30:27,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 181 transitions. [2024-11-20 17:30:27,351 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6703703703703704 [2024-11-20 17:30:27,352 INFO L175 Difference]: Start difference. First operand has 75 places, 53 transitions, 326 flow. Second operand 6 states and 181 transitions. [2024-11-20 17:30:27,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 67 transitions, 428 flow [2024-11-20 17:30:27,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 67 transitions, 409 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-11-20 17:30:27,354 INFO L231 Difference]: Finished difference. Result has 67 places, 0 transitions, 0 flow [2024-11-20 17:30:27,354 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=67, PETRI_TRANSITIONS=0} [2024-11-20 17:30:27,355 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 18 predicate places. [2024-11-20 17:30:27,355 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 0 transitions, 0 flow [2024-11-20 17:30:27,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 6 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) [2024-11-20 17:30:27,358 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-11-20 17:30:27,358 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-11-20 17:30:27,359 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-20 17:30:27,359 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-20 17:30:27,359 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-11-20 17:30:27,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 17:30:27,359 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:30:27,363 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-20 17:30:27,363 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 17:30:27,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:30:27 BasicIcfg [2024-11-20 17:30:27,374 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 17:30:27,374 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 17:30:27,374 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 17:30:27,375 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 17:30:27,375 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:30:23" (3/4) ... [2024-11-20 17:30:27,377 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-20 17:30:27,380 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-20 17:30:27,380 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-20 17:30:27,380 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-20 17:30:27,384 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-11-20 17:30:27,385 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-20 17:30:27,385 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-20 17:30:27,386 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-20 17:30:27,455 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 17:30:27,456 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-20 17:30:27,459 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 17:30:27,460 INFO L158 Benchmark]: Toolchain (without parser) took 4770.04ms. Allocated memory was 203.4MB in the beginning and 295.7MB in the end (delta: 92.3MB). Free memory was 173.5MB in the beginning and 244.4MB in the end (delta: -70.9MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2024-11-20 17:30:27,460 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 130.0MB. Free memory is still 93.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 17:30:27,460 INFO L158 Benchmark]: CACSL2BoogieTranslator took 439.90ms. Allocated memory is still 203.4MB. Free memory was 172.6MB in the beginning and 150.4MB in the end (delta: 22.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-20 17:30:27,460 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.19ms. Allocated memory is still 203.4MB. Free memory was 150.4MB in the beginning and 148.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 17:30:27,460 INFO L158 Benchmark]: Boogie Preprocessor took 37.04ms. Allocated memory is still 203.4MB. Free memory was 148.3MB in the beginning and 146.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 17:30:27,461 INFO L158 Benchmark]: RCFGBuilder took 402.18ms. Allocated memory is still 203.4MB. Free memory was 146.2MB in the beginning and 126.5MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-20 17:30:27,461 INFO L158 Benchmark]: TraceAbstraction took 3764.43ms. Allocated memory was 203.4MB in the beginning and 295.7MB in the end (delta: 92.3MB). Free memory was 125.6MB in the beginning and 248.6MB in the end (delta: -123.0MB). Peak memory consumption was 106.7MB. Max. memory is 16.1GB. [2024-11-20 17:30:27,461 INFO L158 Benchmark]: Witness Printer took 84.91ms. Allocated memory is still 295.7MB. Free memory was 248.6MB in the beginning and 244.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 17:30:27,462 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 130.0MB. Free memory is still 93.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 439.90ms. Allocated memory is still 203.4MB. Free memory was 172.6MB in the beginning and 150.4MB in the end (delta: 22.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.19ms. Allocated memory is still 203.4MB. Free memory was 150.4MB in the beginning and 148.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.04ms. Allocated memory is still 203.4MB. Free memory was 148.3MB in the beginning and 146.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 402.18ms. Allocated memory is still 203.4MB. Free memory was 146.2MB in the beginning and 126.5MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3764.43ms. Allocated memory was 203.4MB in the beginning and 295.7MB in the end (delta: 92.3MB). Free memory was 125.6MB in the beginning and 248.6MB in the end (delta: -123.0MB). Peak memory consumption was 106.7MB. Max. memory is 16.1GB. * Witness Printer took 84.91ms. Allocated memory is still 295.7MB. Free memory was 248.6MB in the beginning and 244.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 778]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 70 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.7s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 372 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 335 mSDsluCounter, 193 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 129 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 736 IncrementalHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 64 mSDtfsCounter, 736 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=338occurred in iteration=7, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 193 NumberOfCodeBlocks, 193 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 184 ConstructedInterpolants, 0 QuantifiedInterpolants, 678 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-20 17:30:27,482 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE