./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/bench-exp3x3-opt.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/bench-exp3x3-opt.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 df63a9317cd159d15f0c87211084d5e90c66afa781f3187352107d14a3f61024 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 19:47:17,830 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 19:47:17,926 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-14 19:47:17,934 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 19:47:17,935 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 19:47:17,962 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 19:47:17,965 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 19:47:17,965 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 19:47:17,966 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 19:47:17,967 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 19:47:17,968 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 19:47:17,969 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 19:47:17,969 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 19:47:17,970 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 19:47:17,970 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 19:47:17,972 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 19:47:17,972 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 19:47:17,973 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 19:47:17,973 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 19:47:17,973 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 19:47:17,974 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-14 19:47:17,978 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-14 19:47:17,978 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-14 19:47:17,978 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 19:47:17,979 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 19:47:17,979 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 19:47:17,979 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 19:47:17,979 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 19:47:17,980 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 19:47:17,980 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 19:47:17,980 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 19:47:17,980 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 19:47:17,981 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 19:47:17,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:47:17,981 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 19:47:17,981 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 19:47:17,982 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 19:47:17,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 19:47:17,982 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 19:47:17,982 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 19:47:17,982 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 19:47:17,983 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 19:47:17,983 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df63a9317cd159d15f0c87211084d5e90c66afa781f3187352107d14a3f61024 [2024-10-14 19:47:18,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 19:47:18,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 19:47:18,252 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 19:47:18,253 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 19:47:18,254 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 19:47:18,255 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/bench-exp3x3-opt.wvr.c [2024-10-14 19:47:19,702 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 19:47:19,891 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 19:47:19,891 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/bench-exp3x3-opt.wvr.c [2024-10-14 19:47:19,898 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5c56bec2/8dec87f520c749ed90e021ace394d7df/FLAG2e25caed6 [2024-10-14 19:47:20,274 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5c56bec2/8dec87f520c749ed90e021ace394d7df [2024-10-14 19:47:20,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 19:47:20,277 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 19:47:20,278 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 19:47:20,279 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 19:47:20,283 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 19:47:20,284 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:47:20" (1/1) ... [2024-10-14 19:47:20,285 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33a6a5b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:47:20, skipping insertion in model container [2024-10-14 19:47:20,285 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:47:20" (1/1) ... [2024-10-14 19:47:20,308 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 19:47:20,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:47:20,496 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 19:47:20,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:47:20,546 INFO L204 MainTranslator]: Completed translation [2024-10-14 19:47:20,546 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:47:20 WrapperNode [2024-10-14 19:47:20,546 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 19:47:20,547 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 19:47:20,548 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 19:47:20,548 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 19:47:20,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:47:20" (1/1) ... [2024-10-14 19:47:20,573 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:47:20" (1/1) ... [2024-10-14 19:47:20,612 INFO L138 Inliner]: procedures = 24, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 97 [2024-10-14 19:47:20,612 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 19:47:20,613 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 19:47:20,613 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 19:47:20,613 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 19:47:20,625 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:47:20" (1/1) ... [2024-10-14 19:47:20,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:47:20" (1/1) ... [2024-10-14 19:47:20,628 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:47:20" (1/1) ... [2024-10-14 19:47:20,650 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 19:47:20,651 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:47:20" (1/1) ... [2024-10-14 19:47:20,651 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:47:20" (1/1) ... [2024-10-14 19:47:20,661 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:47:20" (1/1) ... [2024-10-14 19:47:20,668 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:47:20" (1/1) ... [2024-10-14 19:47:20,670 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:47:20" (1/1) ... [2024-10-14 19:47:20,675 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:47:20" (1/1) ... [2024-10-14 19:47:20,678 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 19:47:20,682 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 19:47:20,682 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 19:47:20,682 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 19:47:20,683 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:47:20" (1/1) ... [2024-10-14 19:47:20,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:47:20,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:47:20,716 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 19:47:20,718 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 19:47:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 19:47:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-14 19:47:20,762 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-14 19:47:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-14 19:47:20,763 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-14 19:47:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-14 19:47:20,763 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-14 19:47:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-10-14 19:47:20,763 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-10-14 19:47:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 19:47:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-10-14 19:47:20,764 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-10-14 19:47:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-10-14 19:47:20,764 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-10-14 19:47:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 19:47:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 19:47:20,766 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 19:47:20,859 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 19:47:20,861 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 19:47:21,091 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 19:47:21,091 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 19:47:21,316 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 19:47:21,316 INFO L314 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-14 19:47:21,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:47:21 BoogieIcfgContainer [2024-10-14 19:47:21,316 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 19:47:21,320 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 19:47:21,321 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 19:47:21,324 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 19:47:21,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:47:20" (1/3) ... [2024-10-14 19:47:21,325 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc3196a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:47:21, skipping insertion in model container [2024-10-14 19:47:21,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:47:20" (2/3) ... [2024-10-14 19:47:21,327 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc3196a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:47:21, skipping insertion in model container [2024-10-14 19:47:21,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:47:21" (3/3) ... [2024-10-14 19:47:21,329 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp3x3-opt.wvr.c [2024-10-14 19:47:21,347 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 19:47:21,347 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-14 19:47:21,347 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 19:47:21,428 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2024-10-14 19:47:21,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 48 transitions, 138 flow [2024-10-14 19:47:21,522 INFO L124 PetriNetUnfolderBase]: 6/42 cut-off events. [2024-10-14 19:47:21,522 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-14 19:47:21,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 42 events. 6/42 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 34 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2024-10-14 19:47:21,530 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 48 transitions, 138 flow [2024-10-14 19:47:21,535 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 41 transitions, 118 flow [2024-10-14 19:47:21,548 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 19:47:21,555 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;@1967da21, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 19:47:21,555 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-14 19:47:21,585 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 19:47:21,585 INFO L124 PetriNetUnfolderBase]: 6/38 cut-off events. [2024-10-14 19:47:21,585 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-14 19:47:21,585 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:47:21,586 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:47:21,587 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-10-14 19:47:21,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:47:21,594 INFO L85 PathProgramCache]: Analyzing trace with hash -135870467, now seen corresponding path program 1 times [2024-10-14 19:47:21,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:47:21,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435717229] [2024-10-14 19:47:21,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:47:21,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:47:21,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:47:22,205 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 19:47:22,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:47:22,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435717229] [2024-10-14 19:47:22,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435717229] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:47:22,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:47:22,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 19:47:22,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724604873] [2024-10-14 19:47:22,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:47:22,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:47:22,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:47:22,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:47:22,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:47:22,262 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-10-14 19:47:22,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 41 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 19:47:22,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:47:22,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-10-14 19:47:22,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:47:24,420 INFO L124 PetriNetUnfolderBase]: 21779/25317 cut-off events. [2024-10-14 19:47:24,421 INFO L125 PetriNetUnfolderBase]: For 1331/1331 co-relation queries the response was YES. [2024-10-14 19:47:24,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51772 conditions, 25317 events. 21779/25317 cut-off events. For 1331/1331 co-relation queries the response was YES. Maximal size of possible extension queue 888. Compared 88251 event pairs, 3994 based on Foata normal form. 2/13862 useless extension candidates. Maximal degree in co-relation 44778. Up to 16365 conditions per place. [2024-10-14 19:47:24,689 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 49 selfloop transitions, 3 changer transitions 1/60 dead transitions. [2024-10-14 19:47:24,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 60 transitions, 283 flow [2024-10-14 19:47:24,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:47:24,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 19:47:24,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2024-10-14 19:47:24,703 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6736111111111112 [2024-10-14 19:47:24,705 INFO L175 Difference]: Start difference. First operand has 54 places, 41 transitions, 118 flow. Second operand 3 states and 97 transitions. [2024-10-14 19:47:24,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 60 transitions, 283 flow [2024-10-14 19:47:24,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 60 transitions, 245 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-10-14 19:47:24,776 INFO L231 Difference]: Finished difference. Result has 43 places, 41 transitions, 109 flow [2024-10-14 19:47:24,778 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=109, PETRI_PLACES=43, PETRI_TRANSITIONS=41} [2024-10-14 19:47:24,783 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, -11 predicate places. [2024-10-14 19:47:24,783 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 41 transitions, 109 flow [2024-10-14 19:47:24,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 19:47:24,784 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:47:24,785 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:47:24,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 19:47:24,785 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-10-14 19:47:24,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:47:24,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1904440649, now seen corresponding path program 1 times [2024-10-14 19:47:24,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:47:24,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938271993] [2024-10-14 19:47:24,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:47:24,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:47:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:47:24,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 19:47:24,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:47:24,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938271993] [2024-10-14 19:47:24,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938271993] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:47:24,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:47:24,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 19:47:24,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972590109] [2024-10-14 19:47:24,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:47:24,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:47:24,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:47:24,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:47:24,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:47:24,965 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-10-14 19:47:24,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 41 transitions, 109 flow. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 19:47:24,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:47:24,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-10-14 19:47:24,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:47:27,002 INFO L124 PetriNetUnfolderBase]: 27521/32101 cut-off events. [2024-10-14 19:47:27,003 INFO L125 PetriNetUnfolderBase]: For 4232/4232 co-relation queries the response was YES. [2024-10-14 19:47:27,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70084 conditions, 32101 events. 27521/32101 cut-off events. For 4232/4232 co-relation queries the response was YES. Maximal size of possible extension queue 1140. Compared 117972 event pairs, 4314 based on Foata normal form. 1/21682 useless extension candidates. Maximal degree in co-relation 22987. Up to 23265 conditions per place. [2024-10-14 19:47:27,162 INFO L140 encePairwiseOnDemand]: 44/48 looper letters, 55 selfloop transitions, 3 changer transitions 3/68 dead transitions. [2024-10-14 19:47:27,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 68 transitions, 304 flow [2024-10-14 19:47:27,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:47:27,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 19:47:27,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2024-10-14 19:47:27,165 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6944444444444444 [2024-10-14 19:47:27,165 INFO L175 Difference]: Start difference. First operand has 43 places, 41 transitions, 109 flow. Second operand 3 states and 100 transitions. [2024-10-14 19:47:27,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 68 transitions, 304 flow [2024-10-14 19:47:27,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 68 transitions, 299 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 19:47:27,167 INFO L231 Difference]: Finished difference. Result has 45 places, 43 transitions, 125 flow [2024-10-14 19:47:27,167 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=45, PETRI_TRANSITIONS=43} [2024-10-14 19:47:27,169 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, -9 predicate places. [2024-10-14 19:47:27,169 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 43 transitions, 125 flow [2024-10-14 19:47:27,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 19:47:27,170 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:47:27,170 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:47:27,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 19:47:27,171 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-10-14 19:47:27,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:47:27,173 INFO L85 PathProgramCache]: Analyzing trace with hash -2091292790, now seen corresponding path program 1 times [2024-10-14 19:47:27,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:47:27,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401954983] [2024-10-14 19:47:27,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:47:27,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:47:27,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:47:27,287 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 19:47:27,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:47:27,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401954983] [2024-10-14 19:47:27,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401954983] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:47:27,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:47:27,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 19:47:27,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801048644] [2024-10-14 19:47:27,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:47:27,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:47:27,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:47:27,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:47:27,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:47:27,290 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-10-14 19:47:27,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 43 transitions, 125 flow. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 19:47:27,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:47:27,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-10-14 19:47:27,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:47:29,689 INFO L124 PetriNetUnfolderBase]: 36425/42807 cut-off events. [2024-10-14 19:47:29,690 INFO L125 PetriNetUnfolderBase]: For 12474/12474 co-relation queries the response was YES. [2024-10-14 19:47:29,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101044 conditions, 42807 events. 36425/42807 cut-off events. For 12474/12474 co-relation queries the response was YES. Maximal size of possible extension queue 1536. Compared 169823 event pairs, 6150 based on Foata normal form. 1/36347 useless extension candidates. Maximal degree in co-relation 33662. Up to 30370 conditions per place. [2024-10-14 19:47:30,014 INFO L140 encePairwiseOnDemand]: 44/48 looper letters, 61 selfloop transitions, 3 changer transitions 5/76 dead transitions. [2024-10-14 19:47:30,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 76 transitions, 358 flow [2024-10-14 19:47:30,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:47:30,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 19:47:30,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2024-10-14 19:47:30,016 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7222222222222222 [2024-10-14 19:47:30,016 INFO L175 Difference]: Start difference. First operand has 45 places, 43 transitions, 125 flow. Second operand 3 states and 104 transitions. [2024-10-14 19:47:30,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 76 transitions, 358 flow [2024-10-14 19:47:30,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 76 transitions, 353 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 19:47:30,020 INFO L231 Difference]: Finished difference. Result has 47 places, 45 transitions, 141 flow [2024-10-14 19:47:30,020 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=141, PETRI_PLACES=47, PETRI_TRANSITIONS=45} [2024-10-14 19:47:30,021 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, -7 predicate places. [2024-10-14 19:47:30,021 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 45 transitions, 141 flow [2024-10-14 19:47:30,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 19:47:30,021 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:47:30,021 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:47:30,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 19:47:30,022 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-10-14 19:47:30,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:47:30,022 INFO L85 PathProgramCache]: Analyzing trace with hash 657790201, now seen corresponding path program 1 times [2024-10-14 19:47:30,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:47:30,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236808934] [2024-10-14 19:47:30,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:47:30,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:47:30,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:47:30,170 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 19:47:30,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:47:30,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236808934] [2024-10-14 19:47:30,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236808934] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:47:30,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:47:30,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 19:47:30,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557485286] [2024-10-14 19:47:30,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:47:30,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 19:47:30,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:47:30,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 19:47:30,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 19:47:30,172 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-10-14 19:47:30,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 45 transitions, 141 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 19:47:30,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:47:30,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-10-14 19:47:30,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:47:32,423 INFO L124 PetriNetUnfolderBase]: 36299/42569 cut-off events. [2024-10-14 19:47:32,424 INFO L125 PetriNetUnfolderBase]: For 16223/16223 co-relation queries the response was YES. [2024-10-14 19:47:32,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106060 conditions, 42569 events. 36299/42569 cut-off events. For 16223/16223 co-relation queries the response was YES. Maximal size of possible extension queue 1529. Compared 166446 event pairs, 973 based on Foata normal form. 418/42929 useless extension candidates. Maximal degree in co-relation 35461. Up to 15425 conditions per place. [2024-10-14 19:47:32,634 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 106 selfloop transitions, 6 changer transitions 8/127 dead transitions. [2024-10-14 19:47:32,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 127 transitions, 619 flow [2024-10-14 19:47:32,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 19:47:32,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 19:47:32,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 175 transitions. [2024-10-14 19:47:32,637 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2024-10-14 19:47:32,639 INFO L175 Difference]: Start difference. First operand has 47 places, 45 transitions, 141 flow. Second operand 5 states and 175 transitions. [2024-10-14 19:47:32,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 127 transitions, 619 flow [2024-10-14 19:47:32,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 127 transitions, 615 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 19:47:32,645 INFO L231 Difference]: Finished difference. Result has 51 places, 47 transitions, 162 flow [2024-10-14 19:47:32,645 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=162, PETRI_PLACES=51, PETRI_TRANSITIONS=47} [2024-10-14 19:47:32,646 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, -3 predicate places. [2024-10-14 19:47:32,647 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 47 transitions, 162 flow [2024-10-14 19:47:32,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 19:47:32,648 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:47:32,648 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:47:32,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 19:47:32,648 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-10-14 19:47:32,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:47:32,649 INFO L85 PathProgramCache]: Analyzing trace with hash -503768265, now seen corresponding path program 2 times [2024-10-14 19:47:32,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:47:32,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678239597] [2024-10-14 19:47:32,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:47:32,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:47:32,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:47:32,776 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 19:47:32,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:47:32,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678239597] [2024-10-14 19:47:32,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678239597] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:47:32,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:47:32,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 19:47:32,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831735918] [2024-10-14 19:47:32,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:47:32,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 19:47:32,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:47:32,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 19:47:32,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 19:47:32,780 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-10-14 19:47:32,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 47 transitions, 162 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 19:47:32,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:47:32,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-10-14 19:47:32,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:47:35,320 INFO L124 PetriNetUnfolderBase]: 37123/44080 cut-off events. [2024-10-14 19:47:35,320 INFO L125 PetriNetUnfolderBase]: For 26595/26595 co-relation queries the response was YES. [2024-10-14 19:47:35,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118344 conditions, 44080 events. 37123/44080 cut-off events. For 26595/26595 co-relation queries the response was YES. Maximal size of possible extension queue 1605. Compared 183348 event pairs, 5052 based on Foata normal form. 941/44779 useless extension candidates. Maximal degree in co-relation 40003. Up to 21474 conditions per place. [2024-10-14 19:47:35,496 INFO L140 encePairwiseOnDemand]: 42/48 looper letters, 108 selfloop transitions, 6 changer transitions 7/128 dead transitions. [2024-10-14 19:47:35,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 128 transitions, 693 flow [2024-10-14 19:47:35,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 19:47:35,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 19:47:35,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 170 transitions. [2024-10-14 19:47:35,499 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2024-10-14 19:47:35,499 INFO L175 Difference]: Start difference. First operand has 51 places, 47 transitions, 162 flow. Second operand 5 states and 170 transitions. [2024-10-14 19:47:35,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 128 transitions, 693 flow [2024-10-14 19:47:35,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 128 transitions, 680 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 19:47:35,506 INFO L231 Difference]: Finished difference. Result has 56 places, 50 transitions, 195 flow [2024-10-14 19:47:35,506 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=195, PETRI_PLACES=56, PETRI_TRANSITIONS=50} [2024-10-14 19:47:35,507 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 2 predicate places. [2024-10-14 19:47:35,507 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 50 transitions, 195 flow [2024-10-14 19:47:35,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 19:47:35,507 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:47:35,507 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:47:35,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 19:47:35,508 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-10-14 19:47:35,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:47:35,508 INFO L85 PathProgramCache]: Analyzing trace with hash -440138048, now seen corresponding path program 1 times [2024-10-14 19:47:35,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:47:35,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351672118] [2024-10-14 19:47:35,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:47:35,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:47:35,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:47:35,609 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 19:47:35,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:47:35,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351672118] [2024-10-14 19:47:35,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351672118] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:47:35,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:47:35,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 19:47:35,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634040563] [2024-10-14 19:47:35,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:47:35,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 19:47:35,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:47:35,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 19:47:35,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 19:47:35,615 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-10-14 19:47:35,616 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 50 transitions, 195 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 19:47:35,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:47:35,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-10-14 19:47:35,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:47:38,096 INFO L124 PetriNetUnfolderBase]: 36029/42952 cut-off events. [2024-10-14 19:47:38,096 INFO L125 PetriNetUnfolderBase]: For 43102/43102 co-relation queries the response was YES. [2024-10-14 19:47:38,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129351 conditions, 42952 events. 36029/42952 cut-off events. For 43102/43102 co-relation queries the response was YES. Maximal size of possible extension queue 1596. Compared 182907 event pairs, 5097 based on Foata normal form. 1140/43428 useless extension candidates. Maximal degree in co-relation 56991. Up to 25585 conditions per place. [2024-10-14 19:47:38,366 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 118 selfloop transitions, 7 changer transitions 6/138 dead transitions. [2024-10-14 19:47:38,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 138 transitions, 793 flow [2024-10-14 19:47:38,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 19:47:38,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 19:47:38,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 174 transitions. [2024-10-14 19:47:38,367 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.725 [2024-10-14 19:47:38,368 INFO L175 Difference]: Start difference. First operand has 56 places, 50 transitions, 195 flow. Second operand 5 states and 174 transitions. [2024-10-14 19:47:38,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 138 transitions, 793 flow [2024-10-14 19:47:38,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 138 transitions, 776 flow, removed 4 selfloop flow, removed 1 redundant places. [2024-10-14 19:47:38,390 INFO L231 Difference]: Finished difference. Result has 61 places, 53 transitions, 229 flow [2024-10-14 19:47:38,390 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=229, PETRI_PLACES=61, PETRI_TRANSITIONS=53} [2024-10-14 19:47:38,391 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 7 predicate places. [2024-10-14 19:47:38,391 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 53 transitions, 229 flow [2024-10-14 19:47:38,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 19:47:38,392 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:47:38,392 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:47:38,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 19:47:38,392 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-10-14 19:47:38,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:47:38,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1825088497, now seen corresponding path program 1 times [2024-10-14 19:47:38,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:47:38,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285612174] [2024-10-14 19:47:38,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:47:38,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:47:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:47:38,766 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 19:47:38,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:47:38,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285612174] [2024-10-14 19:47:38,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285612174] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:47:38,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:47:38,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 19:47:38,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062809200] [2024-10-14 19:47:38,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:47:38,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 19:47:38,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:47:38,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 19:47:38,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 19:47:38,769 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-10-14 19:47:38,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 53 transitions, 229 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 19:47:38,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:47:38,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-10-14 19:47:38,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:47:40,935 INFO L124 PetriNetUnfolderBase]: 35571/42407 cut-off events. [2024-10-14 19:47:40,935 INFO L125 PetriNetUnfolderBase]: For 49767/49767 co-relation queries the response was YES. [2024-10-14 19:47:41,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139112 conditions, 42407 events. 35571/42407 cut-off events. For 49767/49767 co-relation queries the response was YES. Maximal size of possible extension queue 1584. Compared 180456 event pairs, 1081 based on Foata normal form. 654/42996 useless extension candidates. Maximal degree in co-relation 68122. Up to 19299 conditions per place. [2024-10-14 19:47:41,106 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 93 selfloop transitions, 4 changer transitions 34/138 dead transitions. [2024-10-14 19:47:41,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 138 transitions, 806 flow [2024-10-14 19:47:41,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 19:47:41,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 19:47:41,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 171 transitions. [2024-10-14 19:47:41,107 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7125 [2024-10-14 19:47:41,107 INFO L175 Difference]: Start difference. First operand has 61 places, 53 transitions, 229 flow. Second operand 5 states and 171 transitions. [2024-10-14 19:47:41,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 138 transitions, 806 flow [2024-10-14 19:47:41,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 138 transitions, 801 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-14 19:47:41,369 INFO L231 Difference]: Finished difference. Result has 64 places, 51 transitions, 220 flow [2024-10-14 19:47:41,370 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=220, PETRI_PLACES=64, PETRI_TRANSITIONS=51} [2024-10-14 19:47:41,370 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 10 predicate places. [2024-10-14 19:47:41,370 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 51 transitions, 220 flow [2024-10-14 19:47:41,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 19:47:41,371 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:47:41,371 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:47:41,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 19:47:41,371 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-10-14 19:47:41,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:47:41,371 INFO L85 PathProgramCache]: Analyzing trace with hash 848372935, now seen corresponding path program 2 times [2024-10-14 19:47:41,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:47:41,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209791153] [2024-10-14 19:47:41,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:47:41,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:47:41,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:47:41,492 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 19:47:41,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:47:41,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209791153] [2024-10-14 19:47:41,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209791153] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:47:41,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:47:41,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 19:47:41,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052871772] [2024-10-14 19:47:41,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:47:41,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 19:47:41,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:47:41,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 19:47:41,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 19:47:41,496 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-10-14 19:47:41,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 51 transitions, 220 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 19:47:41,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:47:41,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-10-14 19:47:41,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:47:43,778 INFO L124 PetriNetUnfolderBase]: 28207/33435 cut-off events. [2024-10-14 19:47:43,778 INFO L125 PetriNetUnfolderBase]: For 51206/51206 co-relation queries the response was YES. [2024-10-14 19:47:43,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112940 conditions, 33435 events. 28207/33435 cut-off events. For 51206/51206 co-relation queries the response was YES. Maximal size of possible extension queue 1208. Compared 131949 event pairs, 665 based on Foata normal form. 366/33732 useless extension candidates. Maximal degree in co-relation 57753. Up to 13109 conditions per place. [2024-10-14 19:47:43,932 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 89 selfloop transitions, 4 changer transitions 34/134 dead transitions. [2024-10-14 19:47:43,932 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 134 transitions, 848 flow [2024-10-14 19:47:43,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 19:47:43,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 19:47:43,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 166 transitions. [2024-10-14 19:47:43,933 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6916666666666667 [2024-10-14 19:47:43,933 INFO L175 Difference]: Start difference. First operand has 64 places, 51 transitions, 220 flow. Second operand 5 states and 166 transitions. [2024-10-14 19:47:43,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 134 transitions, 848 flow [2024-10-14 19:47:44,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 134 transitions, 820 flow, removed 5 selfloop flow, removed 2 redundant places. [2024-10-14 19:47:44,102 INFO L231 Difference]: Finished difference. Result has 65 places, 51 transitions, 223 flow [2024-10-14 19:47:44,102 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=223, PETRI_PLACES=65, PETRI_TRANSITIONS=51} [2024-10-14 19:47:44,103 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 11 predicate places. [2024-10-14 19:47:44,103 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 51 transitions, 223 flow [2024-10-14 19:47:44,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 19:47:44,103 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:47:44,104 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:47:44,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 19:47:44,104 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-10-14 19:47:44,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:47:44,106 INFO L85 PathProgramCache]: Analyzing trace with hash -42472201, now seen corresponding path program 3 times [2024-10-14 19:47:44,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:47:44,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124547075] [2024-10-14 19:47:44,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:47:44,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:47:44,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:47:44,462 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 19:47:44,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:47:44,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124547075] [2024-10-14 19:47:44,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124547075] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 19:47:44,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609956919] [2024-10-14 19:47:44,463 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 19:47:44,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 19:47:44,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:47:44,465 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 19:47:44,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 19:47:44,557 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-14 19:47:44,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 19:47:44,560 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 19:47:44,564 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:47:44,758 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 19:47:44,760 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 19:47:45,991 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 19:47:45,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609956919] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 19:47:45,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 19:47:45,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-10-14 19:47:45,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589233995] [2024-10-14 19:47:45,993 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 19:47:45,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 19:47:45,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:47:45,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 19:47:45,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-14 19:47:45,995 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-10-14 19:47:45,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 51 transitions, 223 flow. Second operand has 8 states, 8 states have (on average 24.875) internal successors, (199), 8 states have internal predecessors, (199), 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 19:47:45,996 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:47:45,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-10-14 19:47:45,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:47:48,257 INFO L124 PetriNetUnfolderBase]: 22317/26660 cut-off events. [2024-10-14 19:47:48,259 INFO L125 PetriNetUnfolderBase]: For 47572/47572 co-relation queries the response was YES. [2024-10-14 19:47:48,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94594 conditions, 26660 events. 22317/26660 cut-off events. For 47572/47572 co-relation queries the response was YES. Maximal size of possible extension queue 936. Compared 103123 event pairs, 257 based on Foata normal form. 1436/28082 useless extension candidates. Maximal degree in co-relation 52364. Up to 7178 conditions per place. [2024-10-14 19:47:48,389 INFO L140 encePairwiseOnDemand]: 37/48 looper letters, 299 selfloop transitions, 61 changer transitions 7/374 dead transitions. [2024-10-14 19:47:48,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 374 transitions, 2584 flow [2024-10-14 19:47:48,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-14 19:47:48,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-10-14 19:47:48,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 551 transitions. [2024-10-14 19:47:48,392 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6041666666666666 [2024-10-14 19:47:48,392 INFO L175 Difference]: Start difference. First operand has 65 places, 51 transitions, 223 flow. Second operand 19 states and 551 transitions. [2024-10-14 19:47:48,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 374 transitions, 2584 flow [2024-10-14 19:47:48,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 374 transitions, 2543 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-14 19:47:48,465 INFO L231 Difference]: Finished difference. Result has 95 places, 115 transitions, 855 flow [2024-10-14 19:47:48,465 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=855, PETRI_PLACES=95, PETRI_TRANSITIONS=115} [2024-10-14 19:47:48,466 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 41 predicate places. [2024-10-14 19:47:48,466 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 115 transitions, 855 flow [2024-10-14 19:47:48,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.875) internal successors, (199), 8 states have internal predecessors, (199), 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 19:47:48,466 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:47:48,466 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:47:48,480 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 19:47:48,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 19:47:48,668 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-10-14 19:47:48,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:47:48,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1082739710, now seen corresponding path program 1 times [2024-10-14 19:47:48,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:47:48,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384815824] [2024-10-14 19:47:48,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:47:48,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:47:48,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:47:48,799 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 19:47:48,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:47:48,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384815824] [2024-10-14 19:47:48,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384815824] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 19:47:48,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592672806] [2024-10-14 19:47:48,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:47:48,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 19:47:48,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:47:48,803 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 19:47:48,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 19:47:48,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:47:48,896 INFO L255 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 19:47:48,898 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:47:48,979 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 19:47:48,979 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 19:47:49,062 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 19:47:49,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [592672806] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 19:47:49,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 19:47:49,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-10-14 19:47:49,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107065018] [2024-10-14 19:47:49,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 19:47:49,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 19:47:49,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:47:49,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 19:47:49,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 19:47:49,066 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-10-14 19:47:49,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 115 transitions, 855 flow. Second operand has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 7 states have internal predecessors, (164), 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 19:47:49,067 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:47:49,067 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-10-14 19:47:49,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:47:51,763 INFO L124 PetriNetUnfolderBase]: 21214/25562 cut-off events. [2024-10-14 19:47:51,763 INFO L125 PetriNetUnfolderBase]: For 191104/191104 co-relation queries the response was YES. [2024-10-14 19:47:51,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139422 conditions, 25562 events. 21214/25562 cut-off events. For 191104/191104 co-relation queries the response was YES. Maximal size of possible extension queue 898. Compared 98723 event pairs, 81 based on Foata normal form. 1103/26631 useless extension candidates. Maximal degree in co-relation 114966. Up to 8019 conditions per place. [2024-10-14 19:47:51,911 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 439 selfloop transitions, 76 changer transitions 205/727 dead transitions. [2024-10-14 19:47:51,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 727 transitions, 7320 flow [2024-10-14 19:47:51,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-14 19:47:51,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-10-14 19:47:51,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 510 transitions. [2024-10-14 19:47:51,913 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-10-14 19:47:51,913 INFO L175 Difference]: Start difference. First operand has 95 places, 115 transitions, 855 flow. Second operand 17 states and 510 transitions. [2024-10-14 19:47:51,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 727 transitions, 7320 flow [2024-10-14 19:47:52,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 727 transitions, 6918 flow, removed 144 selfloop flow, removed 2 redundant places. [2024-10-14 19:47:52,415 INFO L231 Difference]: Finished difference. Result has 119 places, 177 transitions, 1668 flow [2024-10-14 19:47:52,415 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=795, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1668, PETRI_PLACES=119, PETRI_TRANSITIONS=177} [2024-10-14 19:47:52,416 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 65 predicate places. [2024-10-14 19:47:52,416 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 177 transitions, 1668 flow [2024-10-14 19:47:52,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 7 states have internal predecessors, (164), 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 19:47:52,416 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:47:52,417 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:47:52,433 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 19:47:52,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-14 19:47:52,617 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-10-14 19:47:52,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:47:52,618 INFO L85 PathProgramCache]: Analyzing trace with hash -255496898, now seen corresponding path program 1 times [2024-10-14 19:47:52,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:47:52,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658894041] [2024-10-14 19:47:52,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:47:52,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:47:52,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:47:52,736 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 19:47:52,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:47:52,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658894041] [2024-10-14 19:47:52,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658894041] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:47:52,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:47:52,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 19:47:52,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004330447] [2024-10-14 19:47:52,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:47:52,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 19:47:52,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:47:52,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 19:47:52,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 19:47:52,738 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-10-14 19:47:52,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 177 transitions, 1668 flow. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:47:52,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:47:52,739 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-10-14 19:47:52,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:47:54,307 INFO L124 PetriNetUnfolderBase]: 14634/17716 cut-off events. [2024-10-14 19:47:54,307 INFO L125 PetriNetUnfolderBase]: For 204069/204069 co-relation queries the response was YES. [2024-10-14 19:47:54,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106878 conditions, 17716 events. 14634/17716 cut-off events. For 204069/204069 co-relation queries the response was YES. Maximal size of possible extension queue 560. Compared 66543 event pairs, 978 based on Foata normal form. 404/18032 useless extension candidates. Maximal degree in co-relation 97390. Up to 12463 conditions per place. [2024-10-14 19:47:54,450 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 217 selfloop transitions, 39 changer transitions 0/263 dead transitions. [2024-10-14 19:47:54,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 263 transitions, 2993 flow [2024-10-14 19:47:54,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 19:47:54,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 19:47:54,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 151 transitions. [2024-10-14 19:47:54,451 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6291666666666667 [2024-10-14 19:47:54,451 INFO L175 Difference]: Start difference. First operand has 119 places, 177 transitions, 1668 flow. Second operand 5 states and 151 transitions. [2024-10-14 19:47:54,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 263 transitions, 2993 flow [2024-10-14 19:47:55,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 263 transitions, 2854 flow, removed 60 selfloop flow, removed 3 redundant places. [2024-10-14 19:47:55,005 INFO L231 Difference]: Finished difference. Result has 118 places, 183 transitions, 1795 flow [2024-10-14 19:47:55,005 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=1577, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1795, PETRI_PLACES=118, PETRI_TRANSITIONS=183} [2024-10-14 19:47:55,006 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 64 predicate places. [2024-10-14 19:47:55,006 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 183 transitions, 1795 flow [2024-10-14 19:47:55,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:47:55,006 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:47:55,006 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:47:55,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 19:47:55,007 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-10-14 19:47:55,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:47:55,007 INFO L85 PathProgramCache]: Analyzing trace with hash 626904524, now seen corresponding path program 1 times [2024-10-14 19:47:55,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:47:55,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532567518] [2024-10-14 19:47:55,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:47:55,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:47:55,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:47:55,821 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 19:47:55,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:47:55,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532567518] [2024-10-14 19:47:55,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532567518] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 19:47:55,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191947004] [2024-10-14 19:47:55,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:47:55,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 19:47:55,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:47:55,828 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 19:47:55,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 19:47:56,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:47:56,192 INFO L255 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 19:47:56,195 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:48:28,620 WARN L286 SmtUtils]: Spent 8.30s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)