./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-misc-2-unrolled.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-misc-2-unrolled.wvr.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 e0114971c55bb3ac56cba53b1f36a4abfb42729c079f90200b21654f0e6a33fd --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:54:47,023 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:54:47,079 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 19:54:47,084 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:54:47,085 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:54:47,131 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:54:47,133 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:54:47,134 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:54:47,135 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:54:47,136 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:54:47,137 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:54:47,137 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:54:47,138 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:54:47,138 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:54:47,138 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:54:47,141 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:54:47,142 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:54:47,142 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:54:47,142 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:54:47,143 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:54:47,143 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:54:47,143 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:54:47,144 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:54:47,144 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:54:47,144 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:54:47,145 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:54:47,145 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:54:47,145 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:54:47,146 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:54:47,146 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:54:47,147 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:54:47,147 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:54:47,147 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:54:47,148 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:54:47,148 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:54:47,149 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:54:47,149 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 19:54:47,149 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 19:54:47,149 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:54:47,149 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:54:47,150 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:54:47,150 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:54:47,151 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0114971c55bb3ac56cba53b1f36a4abfb42729c079f90200b21654f0e6a33fd [2024-10-11 19:54:47,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:54:47,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:54:47,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:54:47,397 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:54:47,398 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:54:47,399 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-misc-2-unrolled.wvr.c [2024-10-11 19:54:48,849 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:54:49,046 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:54:49,047 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-misc-2-unrolled.wvr.c [2024-10-11 19:54:49,054 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/edb4b5f31/45a535fdef8e495ba5a1dd6ca1c766f8/FLAGcc434c332 [2024-10-11 19:54:49,064 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/edb4b5f31/45a535fdef8e495ba5a1dd6ca1c766f8 [2024-10-11 19:54:49,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:54:49,067 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:54:49,068 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:54:49,069 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:54:49,073 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:54:49,073 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:54:49" (1/1) ... [2024-10-11 19:54:49,074 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2de7b09a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:54:49, skipping insertion in model container [2024-10-11 19:54:49,074 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:54:49" (1/1) ... [2024-10-11 19:54:49,094 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:54:49,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:54:49,310 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:54:49,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:54:49,350 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:54:49,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:54:49 WrapperNode [2024-10-11 19:54:49,350 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:54:49,351 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:54:49,351 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:54:49,351 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:54:49,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:54:49" (1/1) ... [2024-10-11 19:54:49,370 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:54:49" (1/1) ... [2024-10-11 19:54:49,386 INFO L138 Inliner]: procedures = 19, calls = 19, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 53 [2024-10-11 19:54:49,386 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:54:49,387 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:54:49,387 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:54:49,388 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:54:49,396 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:54:49" (1/1) ... [2024-10-11 19:54:49,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:54:49" (1/1) ... [2024-10-11 19:54:49,398 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:54:49" (1/1) ... [2024-10-11 19:54:49,411 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]. [2024-10-11 19:54:49,412 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:54:49" (1/1) ... [2024-10-11 19:54:49,412 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:54:49" (1/1) ... [2024-10-11 19:54:49,417 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:54:49" (1/1) ... [2024-10-11 19:54:49,420 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:54:49" (1/1) ... [2024-10-11 19:54:49,420 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:54:49" (1/1) ... [2024-10-11 19:54:49,421 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:54:49" (1/1) ... [2024-10-11 19:54:49,423 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:54:49,424 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:54:49,424 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:54:49,424 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:54:49,425 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:54:49" (1/1) ... [2024-10-11 19:54:49,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:54:49,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:54:49,455 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 19:54:49,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 19:54:49,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:54:49,509 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-11 19:54:49,509 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-11 19:54:49,509 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-11 19:54:49,510 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-11 19:54:49,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 19:54:49,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 19:54:49,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 19:54:49,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:54:49,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:54:49,513 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 19:54:49,629 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:54:49,632 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:54:49,852 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 19:54:49,852 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:54:50,000 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:54:50,001 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 19:54:50,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:54:50 BoogieIcfgContainer [2024-10-11 19:54:50,001 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:54:50,006 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:54:50,006 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:54:50,013 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:54:50,014 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:54:49" (1/3) ... [2024-10-11 19:54:50,014 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24320fb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:54:50, skipping insertion in model container [2024-10-11 19:54:50,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:54:49" (2/3) ... [2024-10-11 19:54:50,015 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24320fb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:54:50, skipping insertion in model container [2024-10-11 19:54:50,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:54:50" (3/3) ... [2024-10-11 19:54:50,016 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-2-unrolled.wvr.c [2024-10-11 19:54:50,034 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:54:50,034 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 19:54:50,034 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 19:54:50,083 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-11 19:54:50,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 28 transitions, 70 flow [2024-10-11 19:54:50,138 INFO L124 PetriNetUnfolderBase]: 2/26 cut-off events. [2024-10-11 19:54:50,138 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 19:54:50,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 26 events. 2/26 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 37 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 19. Up to 2 conditions per place. [2024-10-11 19:54:50,145 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 28 transitions, 70 flow [2024-10-11 19:54:50,148 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 25 transitions, 62 flow [2024-10-11 19:54:50,157 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:54:50,166 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;@3aa0700a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:54:50,167 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-11 19:54:50,178 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 19:54:50,178 INFO L124 PetriNetUnfolderBase]: 2/22 cut-off events. [2024-10-11 19:54:50,178 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 19:54:50,178 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:54:50,179 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:54:50,180 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 19:54:50,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:54:50,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1526717730, now seen corresponding path program 1 times [2024-10-11 19:54:50,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:54:50,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146273827] [2024-10-11 19:54:50,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:54:50,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:54:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:54:50,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:50,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:54:50,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146273827] [2024-10-11 19:54:50,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146273827] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:54:50,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:54:50,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:54:50,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906919872] [2024-10-11 19:54:50,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:54:50,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:54:50,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:54:50,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:54:50,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:54:50,635 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 28 [2024-10-11 19:54:50,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 25 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2024-10-11 19:54:50,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:54:50,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 28 [2024-10-11 19:54:50,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:54:50,769 INFO L124 PetriNetUnfolderBase]: 161/293 cut-off events. [2024-10-11 19:54:50,769 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-10-11 19:54:50,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 588 conditions, 293 events. 161/293 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1109 event pairs, 32 based on Foata normal form. 2/289 useless extension candidates. Maximal degree in co-relation 526. Up to 242 conditions per place. [2024-10-11 19:54:50,775 INFO L140 encePairwiseOnDemand]: 23/28 looper letters, 23 selfloop transitions, 3 changer transitions 1/32 dead transitions. [2024-10-11 19:54:50,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 32 transitions, 139 flow [2024-10-11 19:54:50,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:54:50,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:54:50,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 53 transitions. [2024-10-11 19:54:50,788 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6309523809523809 [2024-10-11 19:54:50,789 INFO L175 Difference]: Start difference. First operand has 30 places, 25 transitions, 62 flow. Second operand 3 states and 53 transitions. [2024-10-11 19:54:50,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 32 transitions, 139 flow [2024-10-11 19:54:50,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 32 transitions, 125 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-11 19:54:50,795 INFO L231 Difference]: Finished difference. Result has 27 places, 25 transitions, 69 flow [2024-10-11 19:54:50,799 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=27, PETRI_TRANSITIONS=25} [2024-10-11 19:54:50,802 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, -3 predicate places. [2024-10-11 19:54:50,803 INFO L471 AbstractCegarLoop]: Abstraction has has 27 places, 25 transitions, 69 flow [2024-10-11 19:54:50,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2024-10-11 19:54:50,803 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:54:50,804 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:54:50,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 19:54:50,805 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 19:54:50,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:54:50,806 INFO L85 PathProgramCache]: Analyzing trace with hash -240897554, now seen corresponding path program 1 times [2024-10-11 19:54:50,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:54:50,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852287036] [2024-10-11 19:54:50,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:54:50,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:54:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:54:51,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:51,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:54:51,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852287036] [2024-10-11 19:54:51,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852287036] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:54:51,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:54:51,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:54:51,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804655614] [2024-10-11 19:54:51,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:54:51,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:54:51,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:54:51,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:54:51,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:54:51,016 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 28 [2024-10-11 19:54:51,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 25 transitions, 69 flow. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2024-10-11 19:54:51,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:54:51,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 28 [2024-10-11 19:54:51,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:54:51,200 INFO L124 PetriNetUnfolderBase]: 199/361 cut-off events. [2024-10-11 19:54:51,201 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-10-11 19:54:51,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 755 conditions, 361 events. 199/361 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1466 event pairs, 32 based on Foata normal form. 0/287 useless extension candidates. Maximal degree in co-relation 200. Up to 202 conditions per place. [2024-10-11 19:54:51,207 INFO L140 encePairwiseOnDemand]: 21/28 looper letters, 35 selfloop transitions, 9 changer transitions 3/53 dead transitions. [2024-10-11 19:54:51,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 53 transitions, 229 flow [2024-10-11 19:54:51,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:54:51,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:54:51,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 87 transitions. [2024-10-11 19:54:51,210 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6214285714285714 [2024-10-11 19:54:51,210 INFO L175 Difference]: Start difference. First operand has 27 places, 25 transitions, 69 flow. Second operand 5 states and 87 transitions. [2024-10-11 19:54:51,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 53 transitions, 229 flow [2024-10-11 19:54:51,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 53 transitions, 225 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:54:51,212 INFO L231 Difference]: Finished difference. Result has 33 places, 32 transitions, 123 flow [2024-10-11 19:54:51,213 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=123, PETRI_PLACES=33, PETRI_TRANSITIONS=32} [2024-10-11 19:54:51,214 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 3 predicate places. [2024-10-11 19:54:51,214 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 32 transitions, 123 flow [2024-10-11 19:54:51,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2024-10-11 19:54:51,215 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:54:51,215 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:54:51,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 19:54:51,216 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 19:54:51,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:54:51,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1086785072, now seen corresponding path program 2 times [2024-10-11 19:54:51,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:54:51,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033350320] [2024-10-11 19:54:51,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:54:51,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:54:51,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:54:51,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:51,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:54:51,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033350320] [2024-10-11 19:54:51,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033350320] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:54:51,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:54:51,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:54:51,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426748658] [2024-10-11 19:54:51,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:54:51,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:54:51,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:54:51,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:54:51,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:54:51,379 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 28 [2024-10-11 19:54:51,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 32 transitions, 123 flow. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2024-10-11 19:54:51,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:54:51,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 28 [2024-10-11 19:54:51,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:54:51,576 INFO L124 PetriNetUnfolderBase]: 173/334 cut-off events. [2024-10-11 19:54:51,576 INFO L125 PetriNetUnfolderBase]: For 220/224 co-relation queries the response was YES. [2024-10-11 19:54:51,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 893 conditions, 334 events. 173/334 cut-off events. For 220/224 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1359 event pairs, 11 based on Foata normal form. 21/349 useless extension candidates. Maximal degree in co-relation 278. Up to 132 conditions per place. [2024-10-11 19:54:51,580 INFO L140 encePairwiseOnDemand]: 21/28 looper letters, 38 selfloop transitions, 12 changer transitions 3/59 dead transitions. [2024-10-11 19:54:51,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 59 transitions, 325 flow [2024-10-11 19:54:51,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:54:51,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:54:51,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 88 transitions. [2024-10-11 19:54:51,586 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2024-10-11 19:54:51,586 INFO L175 Difference]: Start difference. First operand has 33 places, 32 transitions, 123 flow. Second operand 5 states and 88 transitions. [2024-10-11 19:54:51,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 59 transitions, 325 flow [2024-10-11 19:54:51,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 59 transitions, 325 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 19:54:51,593 INFO L231 Difference]: Finished difference. Result has 41 places, 37 transitions, 209 flow [2024-10-11 19:54:51,593 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=209, PETRI_PLACES=41, PETRI_TRANSITIONS=37} [2024-10-11 19:54:51,594 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 11 predicate places. [2024-10-11 19:54:51,594 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 37 transitions, 209 flow [2024-10-11 19:54:51,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2024-10-11 19:54:51,595 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:54:51,595 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:54:51,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 19:54:51,596 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 19:54:51,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:54:51,598 INFO L85 PathProgramCache]: Analyzing trace with hash 841560209, now seen corresponding path program 1 times [2024-10-11 19:54:51,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:54:51,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914178745] [2024-10-11 19:54:51,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:54:51,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:54:51,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:54:51,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:51,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:54:51,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914178745] [2024-10-11 19:54:51,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914178745] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:54:51,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:54:51,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:54:51,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951604201] [2024-10-11 19:54:51,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:54:51,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:54:51,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:54:51,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:54:51,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:54:51,737 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 28 [2024-10-11 19:54:51,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 209 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2024-10-11 19:54:51,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:54:51,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 28 [2024-10-11 19:54:51,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:54:51,870 INFO L124 PetriNetUnfolderBase]: 178/345 cut-off events. [2024-10-11 19:54:51,871 INFO L125 PetriNetUnfolderBase]: For 771/777 co-relation queries the response was YES. [2024-10-11 19:54:51,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1193 conditions, 345 events. 178/345 cut-off events. For 771/777 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1415 event pairs, 23 based on Foata normal form. 7/343 useless extension candidates. Maximal degree in co-relation 435. Up to 215 conditions per place. [2024-10-11 19:54:51,876 INFO L140 encePairwiseOnDemand]: 21/28 looper letters, 42 selfloop transitions, 8 changer transitions 4/60 dead transitions. [2024-10-11 19:54:51,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 60 transitions, 411 flow [2024-10-11 19:54:51,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:54:51,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:54:51,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 85 transitions. [2024-10-11 19:54:51,878 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6071428571428571 [2024-10-11 19:54:51,879 INFO L175 Difference]: Start difference. First operand has 41 places, 37 transitions, 209 flow. Second operand 5 states and 85 transitions. [2024-10-11 19:54:51,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 60 transitions, 411 flow [2024-10-11 19:54:51,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 60 transitions, 407 flow, removed 2 selfloop flow, removed 0 redundant places. [2024-10-11 19:54:51,889 INFO L231 Difference]: Finished difference. Result has 47 places, 40 transitions, 256 flow [2024-10-11 19:54:51,889 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=256, PETRI_PLACES=47, PETRI_TRANSITIONS=40} [2024-10-11 19:54:51,890 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 17 predicate places. [2024-10-11 19:54:51,891 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 40 transitions, 256 flow [2024-10-11 19:54:51,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2024-10-11 19:54:51,891 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:54:51,892 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:54:51,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 19:54:51,893 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 19:54:51,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:54:51,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1494218071, now seen corresponding path program 2 times [2024-10-11 19:54:51,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:54:51,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080547164] [2024-10-11 19:54:51,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:54:51,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:54:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:54:51,994 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:51,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:54:51,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080547164] [2024-10-11 19:54:51,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080547164] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:54:51,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:54:51,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:54:51,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179144041] [2024-10-11 19:54:51,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:54:51,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:54:51,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:54:51,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:54:51,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:54:51,999 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 28 [2024-10-11 19:54:51,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 40 transitions, 256 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2024-10-11 19:54:51,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:54:52,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 28 [2024-10-11 19:54:52,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:54:52,112 INFO L124 PetriNetUnfolderBase]: 159/318 cut-off events. [2024-10-11 19:54:52,112 INFO L125 PetriNetUnfolderBase]: For 892/900 co-relation queries the response was YES. [2024-10-11 19:54:52,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 318 events. 159/318 cut-off events. For 892/900 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1184 event pairs, 24 based on Foata normal form. 18/333 useless extension candidates. Maximal degree in co-relation 837. Up to 149 conditions per place. [2024-10-11 19:54:52,115 INFO L140 encePairwiseOnDemand]: 21/28 looper letters, 41 selfloop transitions, 12 changer transitions 2/61 dead transitions. [2024-10-11 19:54:52,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 61 transitions, 466 flow [2024-10-11 19:54:52,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:54:52,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:54:52,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 83 transitions. [2024-10-11 19:54:52,117 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5928571428571429 [2024-10-11 19:54:52,117 INFO L175 Difference]: Start difference. First operand has 47 places, 40 transitions, 256 flow. Second operand 5 states and 83 transitions. [2024-10-11 19:54:52,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 61 transitions, 466 flow [2024-10-11 19:54:52,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 61 transitions, 450 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-10-11 19:54:52,122 INFO L231 Difference]: Finished difference. Result has 53 places, 43 transitions, 319 flow [2024-10-11 19:54:52,122 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=319, PETRI_PLACES=53, PETRI_TRANSITIONS=43} [2024-10-11 19:54:52,123 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 23 predicate places. [2024-10-11 19:54:52,123 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 43 transitions, 319 flow [2024-10-11 19:54:52,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2024-10-11 19:54:52,124 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:54:52,124 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] [2024-10-11 19:54:52,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 19:54:52,124 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 19:54:52,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:54:52,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1496255439, now seen corresponding path program 1 times [2024-10-11 19:54:52,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:54:52,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302001890] [2024-10-11 19:54:52,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:54:52,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:54:52,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:54:52,300 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:52,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:54:52,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302001890] [2024-10-11 19:54:52,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302001890] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 19:54:52,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532032627] [2024-10-11 19:54:52,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:54:52,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 19:54:52,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:54:52,304 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 19:54:52,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 19:54:52,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:54:52,369 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-11 19:54:52,375 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:54:52,493 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:52,493 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:54:52,564 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:52,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532032627] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:54:52,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 19:54:52,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-10-11 19:54:52,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291438873] [2024-10-11 19:54:52,566 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 19:54:52,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:54:52,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:54:52,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:54:52,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:54:52,570 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 28 [2024-10-11 19:54:52,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 43 transitions, 319 flow. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 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) [2024-10-11 19:54:52,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:54:52,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 28 [2024-10-11 19:54:52,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:54:52,741 INFO L124 PetriNetUnfolderBase]: 164/318 cut-off events. [2024-10-11 19:54:52,742 INFO L125 PetriNetUnfolderBase]: For 1088/1106 co-relation queries the response was YES. [2024-10-11 19:54:52,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1211 conditions, 318 events. 164/318 cut-off events. For 1088/1106 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1157 event pairs, 37 based on Foata normal form. 3/308 useless extension candidates. Maximal degree in co-relation 941. Up to 104 conditions per place. [2024-10-11 19:54:52,744 INFO L140 encePairwiseOnDemand]: 22/28 looper letters, 0 selfloop transitions, 0 changer transitions 61/61 dead transitions. [2024-10-11 19:54:52,744 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 61 transitions, 539 flow [2024-10-11 19:54:52,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:54:52,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 19:54:52,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 82 transitions. [2024-10-11 19:54:52,745 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4880952380952381 [2024-10-11 19:54:52,746 INFO L175 Difference]: Start difference. First operand has 53 places, 43 transitions, 319 flow. Second operand 6 states and 82 transitions. [2024-10-11 19:54:52,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 61 transitions, 539 flow [2024-10-11 19:54:52,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 61 transitions, 516 flow, removed 10 selfloop flow, removed 1 redundant places. [2024-10-11 19:54:52,751 INFO L231 Difference]: Finished difference. Result has 55 places, 0 transitions, 0 flow [2024-10-11 19:54:52,751 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=55, PETRI_TRANSITIONS=0} [2024-10-11 19:54:52,752 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 25 predicate places. [2024-10-11 19:54:52,752 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 0 transitions, 0 flow [2024-10-11 19:54:52,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 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) [2024-10-11 19:54:52,754 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-10-11 19:54:52,755 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-10-11 19:54:52,755 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-10-11 19:54:52,756 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-10-11 19:54:52,778 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 19:54:52,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 19:54:52,960 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1] [2024-10-11 19:54:52,963 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 19:54:52,963 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 19:54:52,968 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 07:54:52 BasicIcfg [2024-10-11 19:54:52,969 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 19:54:52,969 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 19:54:52,969 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 19:54:52,970 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 19:54:52,970 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:54:50" (3/4) ... [2024-10-11 19:54:52,972 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 19:54:52,975 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-11 19:54:52,976 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-11 19:54:52,981 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 55 nodes and edges [2024-10-11 19:54:52,982 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-10-11 19:54:52,982 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-10-11 19:54:52,982 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-11 19:54:53,074 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 19:54:53,075 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 19:54:53,075 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 19:54:53,076 INFO L158 Benchmark]: Toolchain (without parser) took 4008.69ms. Allocated memory was 151.0MB in the beginning and 195.0MB in the end (delta: 44.0MB). Free memory was 97.9MB in the beginning and 87.2MB in the end (delta: 10.8MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. [2024-10-11 19:54:53,076 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 151.0MB. Free memory is still 115.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:54:53,076 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.11ms. Allocated memory is still 151.0MB. Free memory was 97.9MB in the beginning and 84.7MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-11 19:54:53,076 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.50ms. Allocated memory is still 151.0MB. Free memory was 84.7MB in the beginning and 83.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:54:53,077 INFO L158 Benchmark]: Boogie Preprocessor took 35.94ms. Allocated memory is still 151.0MB. Free memory was 83.2MB in the beginning and 81.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 19:54:53,077 INFO L158 Benchmark]: RCFGBuilder took 577.75ms. Allocated memory is still 151.0MB. Free memory was 81.1MB in the beginning and 57.5MB in the end (delta: 23.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-11 19:54:53,077 INFO L158 Benchmark]: TraceAbstraction took 2962.42ms. Allocated memory was 151.0MB in the beginning and 195.0MB in the end (delta: 44.0MB). Free memory was 56.9MB in the beginning and 92.4MB in the end (delta: -35.5MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2024-10-11 19:54:53,077 INFO L158 Benchmark]: Witness Printer took 105.74ms. Allocated memory is still 195.0MB. Free memory was 92.4MB in the beginning and 87.2MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-11 19:54:53,083 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 151.0MB. Free memory is still 115.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.11ms. Allocated memory is still 151.0MB. Free memory was 97.9MB in the beginning and 84.7MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.50ms. Allocated memory is still 151.0MB. Free memory was 84.7MB in the beginning and 83.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.94ms. Allocated memory is still 151.0MB. Free memory was 83.2MB in the beginning and 81.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 577.75ms. Allocated memory is still 151.0MB. Free memory was 81.1MB in the beginning and 57.5MB in the end (delta: 23.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2962.42ms. Allocated memory was 151.0MB in the beginning and 195.0MB in the end (delta: 44.0MB). Free memory was 56.9MB in the beginning and 92.4MB in the end (delta: -35.5MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * Witness Printer took 105.74ms. Allocated memory is still 195.0MB. Free memory was 92.4MB in the beginning and 87.2MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 69]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 43 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 94 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 88 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 424 IncrementalHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 2 mSDtfsCounter, 424 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 42 SyntacticMatches, 9 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=319occurred in iteration=5, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 146 ConstructedInterpolants, 0 QuantifiedInterpolants, 1287 SizeOfPredicates, 3 NumberOfNonLiveVariables, 98 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 4/10 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! [2024-10-11 19:54:53,109 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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