./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/chl-collitem-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 61a67961 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/weaver/chl-collitem-trans.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3e310cbbcaa6ee1bb3c2e05a2a5fb7cb2ddde366fa4283fb7922170dd08986ab --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 19:48:38,997 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 19:48:39,108 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-14 19:48:39,113 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 19:48:39,115 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 19:48:39,144 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 19:48:39,146 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 19:48:39,147 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 19:48:39,148 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 19:48:39,148 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 19:48:39,148 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 19:48:39,149 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 19:48:39,150 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 19:48:39,151 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 19:48:39,152 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 19:48:39,152 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 19:48:39,152 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 19:48:39,153 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 19:48:39,153 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 19:48:39,153 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 19:48:39,153 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-14 19:48:39,154 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-14 19:48:39,154 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-14 19:48:39,155 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 19:48:39,155 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 19:48:39,155 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 19:48:39,155 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 19:48:39,156 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 19:48:39,156 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 19:48:39,156 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 19:48:39,156 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 19:48:39,157 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 19:48:39,157 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 19:48:39,157 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:48:39,157 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 19:48:39,158 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 19:48:39,158 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 19:48:39,158 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 19:48:39,158 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 19:48:39,159 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 19:48:39,159 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 19:48:39,159 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 19:48:39,159 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e310cbbcaa6ee1bb3c2e05a2a5fb7cb2ddde366fa4283fb7922170dd08986ab [2024-10-14 19:48:39,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 19:48:39,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 19:48:39,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 19:48:39,441 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 19:48:39,442 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 19:48:39,443 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c [2024-10-14 19:48:40,862 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 19:48:41,042 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 19:48:41,043 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c [2024-10-14 19:48:41,054 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4a818c70/2c647d92967d4b24b743a7cdf8f76d9e/FLAG26f6c9f01 [2024-10-14 19:48:41,070 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4a818c70/2c647d92967d4b24b743a7cdf8f76d9e [2024-10-14 19:48:41,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 19:48:41,076 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 19:48:41,079 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 19:48:41,079 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 19:48:41,085 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 19:48:41,086 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:48:41" (1/1) ... [2024-10-14 19:48:41,087 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc9c083 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:48:41, skipping insertion in model container [2024-10-14 19:48:41,087 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:48:41" (1/1) ... [2024-10-14 19:48:41,112 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 19:48:41,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:48:41,373 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 19:48:41,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:48:41,461 INFO L204 MainTranslator]: Completed translation [2024-10-14 19:48:41,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:48:41 WrapperNode [2024-10-14 19:48:41,462 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 19:48:41,464 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 19:48:41,464 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 19:48:41,464 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 19:48:41,472 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:48:41" (1/1) ... [2024-10-14 19:48:41,480 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:48:41" (1/1) ... [2024-10-14 19:48:41,523 INFO L138 Inliner]: procedures = 22, calls = 31, calls flagged for inlining = 18, calls inlined = 40, statements flattened = 347 [2024-10-14 19:48:41,524 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 19:48:41,524 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 19:48:41,524 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 19:48:41,525 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 19:48:41,544 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:48:41" (1/1) ... [2024-10-14 19:48:41,547 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:48:41" (1/1) ... [2024-10-14 19:48:41,552 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:48:41" (1/1) ... [2024-10-14 19:48:41,584 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]. [2024-10-14 19:48:41,585 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:48:41" (1/1) ... [2024-10-14 19:48:41,585 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:48:41" (1/1) ... [2024-10-14 19:48:41,592 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:48:41" (1/1) ... [2024-10-14 19:48:41,597 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:48:41" (1/1) ... [2024-10-14 19:48:41,599 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:48:41" (1/1) ... [2024-10-14 19:48:41,602 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:48:41" (1/1) ... [2024-10-14 19:48:41,606 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 19:48:41,607 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 19:48:41,607 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 19:48:41,608 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 19:48:41,612 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:48:41" (1/1) ... [2024-10-14 19:48:41,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:48:41,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:48:41,642 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) [2024-10-14 19:48:41,644 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 [2024-10-14 19:48:41,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 19:48:41,682 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-14 19:48:41,683 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-14 19:48:41,683 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-14 19:48:41,683 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-14 19:48:41,683 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-14 19:48:41,683 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-14 19:48:41,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 19:48:41,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-14 19:48:41,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-14 19:48:41,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 19:48:41,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 19:48:41,685 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 19:48:41,788 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 19:48:41,790 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 19:48:42,292 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 19:48:42,292 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 19:48:42,801 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 19:48:42,801 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 19:48:42,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:48:42 BoogieIcfgContainer [2024-10-14 19:48:42,802 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 19:48:42,803 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 19:48:42,803 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 19:48:42,808 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 19:48:42,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:48:41" (1/3) ... [2024-10-14 19:48:42,809 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ca77c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:48:42, skipping insertion in model container [2024-10-14 19:48:42,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:48:41" (2/3) ... [2024-10-14 19:48:42,810 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ca77c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:48:42, skipping insertion in model container [2024-10-14 19:48:42,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:48:42" (3/3) ... [2024-10-14 19:48:42,812 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-trans.wvr.c [2024-10-14 19:48:42,835 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 19:48:42,836 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-14 19:48:42,836 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 19:48:42,921 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-14 19:48:42,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 27 transitions, 75 flow [2024-10-14 19:48:42,992 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2024-10-14 19:48:42,992 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-14 19:48:42,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 24 events. 0/24 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-10-14 19:48:42,994 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 27 transitions, 75 flow [2024-10-14 19:48:42,998 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 23 transitions, 64 flow [2024-10-14 19:48:43,009 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 19:48:43,019 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;@49fde274, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 19:48:43,020 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-14 19:48:43,034 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 19:48:43,035 INFO L124 PetriNetUnfolderBase]: 0/20 cut-off events. [2024-10-14 19:48:43,035 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-14 19:48:43,035 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:48:43,036 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] [2024-10-14 19:48:43,036 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:48:43,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:48:43,041 INFO L85 PathProgramCache]: Analyzing trace with hash -853145437, now seen corresponding path program 1 times [2024-10-14 19:48:43,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:48:43,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854797879] [2024-10-14 19:48:43,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:48:43,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:48:43,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:48:46,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:48:46,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:48:46,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854797879] [2024-10-14 19:48:46,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854797879] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:48:46,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:48:46,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:48:46,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515912446] [2024-10-14 19:48:46,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:48:46,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:48:46,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:48:46,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:48:46,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:48:46,195 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-10-14 19:48:46,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 23 transitions, 64 flow. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2024-10-14 19:48:46,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:48:46,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-10-14 19:48:46,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:48:46,635 INFO L124 PetriNetUnfolderBase]: 178/331 cut-off events. [2024-10-14 19:48:46,635 INFO L125 PetriNetUnfolderBase]: For 65/65 co-relation queries the response was YES. [2024-10-14 19:48:46,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 715 conditions, 331 events. 178/331 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1248 event pairs, 10 based on Foata normal form. 3/333 useless extension candidates. Maximal degree in co-relation 634. Up to 110 conditions per place. [2024-10-14 19:48:46,641 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 34 selfloop transitions, 6 changer transitions 8/52 dead transitions. [2024-10-14 19:48:46,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 52 transitions, 248 flow [2024-10-14 19:48:46,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 19:48:46,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 19:48:46,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 99 transitions. [2024-10-14 19:48:46,656 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-10-14 19:48:46,658 INFO L175 Difference]: Start difference. First operand has 33 places, 23 transitions, 64 flow. Second operand 6 states and 99 transitions. [2024-10-14 19:48:46,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 52 transitions, 248 flow [2024-10-14 19:48:46,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 52 transitions, 216 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-14 19:48:46,667 INFO L231 Difference]: Finished difference. Result has 33 places, 25 transitions, 81 flow [2024-10-14 19:48:46,669 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=81, PETRI_PLACES=33, PETRI_TRANSITIONS=25} [2024-10-14 19:48:46,673 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 0 predicate places. [2024-10-14 19:48:46,674 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 25 transitions, 81 flow [2024-10-14 19:48:46,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2024-10-14 19:48:46,674 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:48:46,675 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] [2024-10-14 19:48:46,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 19:48:46,675 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:48:46,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:48:46,676 INFO L85 PathProgramCache]: Analyzing trace with hash 2094322117, now seen corresponding path program 2 times [2024-10-14 19:48:46,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:48:46,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926014654] [2024-10-14 19:48:46,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:48:46,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:48:46,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:48:48,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:48:48,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:48:48,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926014654] [2024-10-14 19:48:48,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926014654] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:48:48,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:48:48,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:48:48,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607019320] [2024-10-14 19:48:48,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:48:48,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:48:48,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:48:48,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:48:48,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:48:48,700 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-10-14 19:48:48,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 25 transitions, 81 flow. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2024-10-14 19:48:48,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:48:48,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-10-14 19:48:48,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:48:49,052 INFO L124 PetriNetUnfolderBase]: 194/366 cut-off events. [2024-10-14 19:48:49,052 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES. [2024-10-14 19:48:49,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 871 conditions, 366 events. 194/366 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1495 event pairs, 28 based on Foata normal form. 1/366 useless extension candidates. Maximal degree in co-relation 857. Up to 151 conditions per place. [2024-10-14 19:48:49,056 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 33 selfloop transitions, 6 changer transitions 12/55 dead transitions. [2024-10-14 19:48:49,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 55 transitions, 262 flow [2024-10-14 19:48:49,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 19:48:49,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 19:48:49,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 99 transitions. [2024-10-14 19:48:49,058 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-10-14 19:48:49,058 INFO L175 Difference]: Start difference. First operand has 33 places, 25 transitions, 81 flow. Second operand 6 states and 99 transitions. [2024-10-14 19:48:49,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 55 transitions, 262 flow [2024-10-14 19:48:49,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 55 transitions, 258 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-14 19:48:49,061 INFO L231 Difference]: Finished difference. Result has 38 places, 24 transitions, 92 flow [2024-10-14 19:48:49,061 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=92, PETRI_PLACES=38, PETRI_TRANSITIONS=24} [2024-10-14 19:48:49,062 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 5 predicate places. [2024-10-14 19:48:49,062 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 24 transitions, 92 flow [2024-10-14 19:48:49,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2024-10-14 19:48:49,062 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:48:49,062 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:48:49,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 19:48:49,063 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:48:49,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:48:49,063 INFO L85 PathProgramCache]: Analyzing trace with hash -379942447, now seen corresponding path program 3 times [2024-10-14 19:48:49,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:48:49,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176680440] [2024-10-14 19:48:49,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:48:49,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:48:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:48:50,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:48:50,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:48:50,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176680440] [2024-10-14 19:48:50,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176680440] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:48:50,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:48:50,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:48:50,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176145480] [2024-10-14 19:48:50,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:48:50,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:48:50,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:48:50,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:48:50,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:48:50,800 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-10-14 19:48:50,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 24 transitions, 92 flow. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2024-10-14 19:48:50,800 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:48:50,800 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-10-14 19:48:50,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:48:51,230 INFO L124 PetriNetUnfolderBase]: 189/369 cut-off events. [2024-10-14 19:48:51,230 INFO L125 PetriNetUnfolderBase]: For 331/331 co-relation queries the response was YES. [2024-10-14 19:48:51,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 934 conditions, 369 events. 189/369 cut-off events. For 331/331 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1528 event pairs, 16 based on Foata normal form. 1/369 useless extension candidates. Maximal degree in co-relation 914. Up to 190 conditions per place. [2024-10-14 19:48:51,233 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 31 selfloop transitions, 5 changer transitions 11/51 dead transitions. [2024-10-14 19:48:51,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 51 transitions, 261 flow [2024-10-14 19:48:51,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 19:48:51,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 19:48:51,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 96 transitions. [2024-10-14 19:48:51,236 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5925925925925926 [2024-10-14 19:48:51,236 INFO L175 Difference]: Start difference. First operand has 38 places, 24 transitions, 92 flow. Second operand 6 states and 96 transitions. [2024-10-14 19:48:51,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 51 transitions, 261 flow [2024-10-14 19:48:51,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 51 transitions, 237 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-10-14 19:48:51,239 INFO L231 Difference]: Finished difference. Result has 40 places, 24 transitions, 92 flow [2024-10-14 19:48:51,239 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=92, PETRI_PLACES=40, PETRI_TRANSITIONS=24} [2024-10-14 19:48:51,240 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 7 predicate places. [2024-10-14 19:48:51,240 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 24 transitions, 92 flow [2024-10-14 19:48:51,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2024-10-14 19:48:51,241 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:48:51,241 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] [2024-10-14 19:48:51,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 19:48:51,241 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:48:51,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:48:51,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1029630383, now seen corresponding path program 4 times [2024-10-14 19:48:51,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:48:51,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976413902] [2024-10-14 19:48:51,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:48:51,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:48:51,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:48:53,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:48:53,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:48:53,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976413902] [2024-10-14 19:48:53,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976413902] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:48:53,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:48:53,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:48:53,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418735037] [2024-10-14 19:48:53,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:48:53,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:48:53,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:48:53,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:48:53,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:48:53,242 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-10-14 19:48:53,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 24 transitions, 92 flow. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2024-10-14 19:48:53,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:48:53,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-10-14 19:48:53,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:48:53,587 INFO L124 PetriNetUnfolderBase]: 138/270 cut-off events. [2024-10-14 19:48:53,588 INFO L125 PetriNetUnfolderBase]: For 216/216 co-relation queries the response was YES. [2024-10-14 19:48:53,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 685 conditions, 270 events. 138/270 cut-off events. For 216/216 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 998 event pairs, 9 based on Foata normal form. 1/271 useless extension candidates. Maximal degree in co-relation 669. Up to 93 conditions per place. [2024-10-14 19:48:53,589 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 30 selfloop transitions, 5 changer transitions 10/49 dead transitions. [2024-10-14 19:48:53,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 49 transitions, 248 flow [2024-10-14 19:48:53,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 19:48:53,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 19:48:53,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 94 transitions. [2024-10-14 19:48:53,594 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5802469135802469 [2024-10-14 19:48:53,595 INFO L175 Difference]: Start difference. First operand has 40 places, 24 transitions, 92 flow. Second operand 6 states and 94 transitions. [2024-10-14 19:48:53,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 49 transitions, 248 flow [2024-10-14 19:48:53,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 49 transitions, 233 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-10-14 19:48:53,599 INFO L231 Difference]: Finished difference. Result has 42 places, 24 transitions, 96 flow [2024-10-14 19:48:53,599 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=96, PETRI_PLACES=42, PETRI_TRANSITIONS=24} [2024-10-14 19:48:53,600 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 9 predicate places. [2024-10-14 19:48:53,601 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 24 transitions, 96 flow [2024-10-14 19:48:53,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2024-10-14 19:48:53,602 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:48:53,602 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] [2024-10-14 19:48:53,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 19:48:53,602 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:48:53,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:48:53,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1207943783, now seen corresponding path program 5 times [2024-10-14 19:48:53,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:48:53,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014675824] [2024-10-14 19:48:53,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:48:53,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:48:53,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:48:55,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:48:55,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:48:55,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014675824] [2024-10-14 19:48:55,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014675824] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:48:55,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:48:55,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:48:55,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664119228] [2024-10-14 19:48:55,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:48:55,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:48:55,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:48:55,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:48:55,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:48:55,317 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-10-14 19:48:55,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 24 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2024-10-14 19:48:55,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:48:55,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-10-14 19:48:55,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:48:55,613 INFO L124 PetriNetUnfolderBase]: 106/213 cut-off events. [2024-10-14 19:48:55,613 INFO L125 PetriNetUnfolderBase]: For 192/192 co-relation queries the response was YES. [2024-10-14 19:48:55,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 574 conditions, 213 events. 106/213 cut-off events. For 192/192 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 734 event pairs, 20 based on Foata normal form. 1/214 useless extension candidates. Maximal degree in co-relation 562. Up to 109 conditions per place. [2024-10-14 19:48:55,615 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 19 selfloop transitions, 3 changer transitions 16/42 dead transitions. [2024-10-14 19:48:55,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 42 transitions, 220 flow [2024-10-14 19:48:55,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 19:48:55,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 19:48:55,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 87 transitions. [2024-10-14 19:48:55,616 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5370370370370371 [2024-10-14 19:48:55,617 INFO L175 Difference]: Start difference. First operand has 42 places, 24 transitions, 96 flow. Second operand 6 states and 87 transitions. [2024-10-14 19:48:55,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 42 transitions, 220 flow [2024-10-14 19:48:55,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 42 transitions, 215 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-14 19:48:55,618 INFO L231 Difference]: Finished difference. Result has 44 places, 21 transitions, 77 flow [2024-10-14 19:48:55,619 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=77, PETRI_PLACES=44, PETRI_TRANSITIONS=21} [2024-10-14 19:48:55,619 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 11 predicate places. [2024-10-14 19:48:55,620 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 21 transitions, 77 flow [2024-10-14 19:48:55,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2024-10-14 19:48:55,620 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:48:55,620 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] [2024-10-14 19:48:55,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 19:48:55,620 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:48:55,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:48:55,621 INFO L85 PathProgramCache]: Analyzing trace with hash 632130497, now seen corresponding path program 6 times [2024-10-14 19:48:55,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:48:55,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112135527] [2024-10-14 19:48:55,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:48:55,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:48:55,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:48:58,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:48:58,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:48:58,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112135527] [2024-10-14 19:48:58,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112135527] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:48:58,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:48:58,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:48:58,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282253440] [2024-10-14 19:48:58,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:48:58,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:48:58,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:48:58,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:48:58,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:48:58,205 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-10-14 19:48:58,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 21 transitions, 77 flow. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2024-10-14 19:48:58,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:48:58,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-10-14 19:48:58,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:48:58,441 INFO L124 PetriNetUnfolderBase]: 42/89 cut-off events. [2024-10-14 19:48:58,441 INFO L125 PetriNetUnfolderBase]: For 142/142 co-relation queries the response was YES. [2024-10-14 19:48:58,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 89 events. 42/89 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 187 event pairs, 0 based on Foata normal form. 1/90 useless extension candidates. Maximal degree in co-relation 240. Up to 54 conditions per place. [2024-10-14 19:48:58,442 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 0 selfloop transitions, 0 changer transitions 26/26 dead transitions. [2024-10-14 19:48:58,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 26 transitions, 132 flow [2024-10-14 19:48:58,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 19:48:58,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 19:48:58,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 72 transitions. [2024-10-14 19:48:58,443 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-10-14 19:48:58,443 INFO L175 Difference]: Start difference. First operand has 44 places, 21 transitions, 77 flow. Second operand 6 states and 72 transitions. [2024-10-14 19:48:58,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 26 transitions, 132 flow [2024-10-14 19:48:58,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 26 transitions, 115 flow, removed 1 selfloop flow, removed 8 redundant places. [2024-10-14 19:48:58,445 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2024-10-14 19:48:58,445 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2024-10-14 19:48:58,445 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 3 predicate places. [2024-10-14 19:48:58,446 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2024-10-14 19:48:58,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2024-10-14 19:48:58,448 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-10-14 19:48:58,449 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-10-14 19:48:58,449 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-10-14 19:48:58,449 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-10-14 19:48:58,450 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-10-14 19:48:58,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 19:48:58,450 INFO L407 BasicCegarLoop]: Path program histogram: [6] [2024-10-14 19:48:58,455 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-14 19:48:58,455 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 19:48:58,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:48:58 BasicIcfg [2024-10-14 19:48:58,465 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 19:48:58,465 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 19:48:58,466 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 19:48:58,466 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 19:48:58,466 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:48:42" (3/4) ... [2024-10-14 19:48:58,468 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-14 19:48:58,471 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-14 19:48:58,471 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-14 19:48:58,471 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-10-14 19:48:58,476 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 102 nodes and edges [2024-10-14 19:48:58,477 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-10-14 19:48:58,477 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-14 19:48:58,477 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-14 19:48:58,578 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 19:48:58,579 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-14 19:48:58,579 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 19:48:58,580 INFO L158 Benchmark]: Toolchain (without parser) took 17503.74ms. Allocated memory was 163.6MB in the beginning and 803.2MB in the end (delta: 639.6MB). Free memory was 97.6MB in the beginning and 595.3MB in the end (delta: -497.8MB). Peak memory consumption was 141.7MB. Max. memory is 16.1GB. [2024-10-14 19:48:58,580 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 92.3MB. Free memory was 47.3MB in the beginning and 47.2MB in the end (delta: 75.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 19:48:58,580 INFO L158 Benchmark]: CACSL2BoogieTranslator took 384.23ms. Allocated memory is still 163.6MB. Free memory was 97.6MB in the beginning and 133.7MB in the end (delta: -36.1MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2024-10-14 19:48:58,581 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.86ms. Allocated memory is still 163.6MB. Free memory was 133.7MB in the beginning and 130.3MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 19:48:58,581 INFO L158 Benchmark]: Boogie Preprocessor took 82.26ms. Allocated memory is still 163.6MB. Free memory was 130.3MB in the beginning and 127.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 19:48:58,581 INFO L158 Benchmark]: RCFGBuilder took 1194.38ms. Allocated memory was 163.6MB in the beginning and 199.2MB in the end (delta: 35.7MB). Free memory was 127.6MB in the beginning and 148.6MB in the end (delta: -21.0MB). Peak memory consumption was 76.8MB. Max. memory is 16.1GB. [2024-10-14 19:48:58,582 INFO L158 Benchmark]: TraceAbstraction took 15661.65ms. Allocated memory was 199.2MB in the beginning and 803.2MB in the end (delta: 604.0MB). Free memory was 148.6MB in the beginning and 600.6MB in the end (delta: -452.0MB). Peak memory consumption was 152.0MB. Max. memory is 16.1GB. [2024-10-14 19:48:58,582 INFO L158 Benchmark]: Witness Printer took 113.86ms. Allocated memory is still 803.2MB. Free memory was 600.6MB in the beginning and 595.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-14 19:48:58,583 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 92.3MB. Free memory was 47.3MB in the beginning and 47.2MB in the end (delta: 75.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 384.23ms. Allocated memory is still 163.6MB. Free memory was 97.6MB in the beginning and 133.7MB in the end (delta: -36.1MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.86ms. Allocated memory is still 163.6MB. Free memory was 133.7MB in the beginning and 130.3MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.26ms. Allocated memory is still 163.6MB. Free memory was 130.3MB in the beginning and 127.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1194.38ms. Allocated memory was 163.6MB in the beginning and 199.2MB in the end (delta: 35.7MB). Free memory was 127.6MB in the beginning and 148.6MB in the end (delta: -21.0MB). Peak memory consumption was 76.8MB. Max. memory is 16.1GB. * TraceAbstraction took 15661.65ms. Allocated memory was 199.2MB in the beginning and 803.2MB in the end (delta: 604.0MB). Free memory was 148.6MB in the beginning and 600.6MB in the end (delta: -452.0MB). Peak memory consumption was 152.0MB. Max. memory is 16.1GB. * Witness Printer took 113.86ms. Allocated memory is still 803.2MB. Free memory was 600.6MB in the beginning and 595.3MB 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: 75]: 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, 43 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: 15.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 190 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 190 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 513 IncrementalHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 0 mSDtfsCounter, 513 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=4, InterpolantAutomatonStates: 36, 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, 0.6s SatisfiabilityAnalysisTime, 12.3s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 3065 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-14 19:48:58,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE