./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 fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/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.dd.update-z3-fca748b-m [2024-11-20 17:38:35,895 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 17:38:35,953 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-20 17:38:35,956 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 17:38:35,956 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 17:38:35,971 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 17:38:35,972 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 17:38:35,972 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 17:38:35,973 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 17:38:35,973 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 17:38:35,973 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 17:38:35,973 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 17:38:35,974 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 17:38:35,974 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 17:38:35,974 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 17:38:35,974 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 17:38:35,975 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 17:38:35,975 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 17:38:35,975 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 17:38:35,975 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 17:38:35,976 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 17:38:35,978 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 17:38:35,978 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 17:38:35,978 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 17:38:35,978 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 17:38:35,978 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 17:38:35,979 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 17:38:35,979 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 17:38:35,979 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 17:38:35,979 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 17:38:35,979 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 17:38:35,980 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 17:38:35,980 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 17:38:35,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:38:35,980 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 17:38:35,980 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 17:38:35,981 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 17:38:35,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 17:38:35,985 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 17:38:35,985 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 17:38:35,985 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 17:38:35,985 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 17:38:35,986 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df63a9317cd159d15f0c87211084d5e90c66afa781f3187352107d14a3f61024 [2024-11-20 17:38:36,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 17:38:36,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 17:38:36,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 17:38:36,240 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 17:38:36,240 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 17:38:36,241 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/bench-exp3x3-opt.wvr.c [2024-11-20 17:38:37,429 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 17:38:37,581 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 17:38:37,581 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/bench-exp3x3-opt.wvr.c [2024-11-20 17:38:37,588 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c1d8f792/c64daa509c2342849ffc98661dc8a3fd/FLAGd1e34ba72 [2024-11-20 17:38:37,984 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c1d8f792/c64daa509c2342849ffc98661dc8a3fd [2024-11-20 17:38:37,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 17:38:37,987 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 17:38:37,990 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 17:38:37,991 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 17:38:37,995 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 17:38:37,995 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:38:37" (1/1) ... [2024-11-20 17:38:37,996 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f6a2d24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:37, skipping insertion in model container [2024-11-20 17:38:37,996 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:38:37" (1/1) ... [2024-11-20 17:38:38,018 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 17:38:38,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:38:38,213 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 17:38:38,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:38:38,244 INFO L204 MainTranslator]: Completed translation [2024-11-20 17:38:38,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:38 WrapperNode [2024-11-20 17:38:38,245 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 17:38:38,246 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 17:38:38,246 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 17:38:38,248 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 17:38:38,253 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:38" (1/1) ... [2024-11-20 17:38:38,259 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:38" (1/1) ... [2024-11-20 17:38:38,276 INFO L138 Inliner]: procedures = 24, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 97 [2024-11-20 17:38:38,276 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 17:38:38,277 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 17:38:38,277 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 17:38:38,277 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 17:38:38,285 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:38" (1/1) ... [2024-11-20 17:38:38,286 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:38" (1/1) ... [2024-11-20 17:38:38,287 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:38" (1/1) ... [2024-11-20 17:38:38,298 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-20 17:38:38,298 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:38" (1/1) ... [2024-11-20 17:38:38,299 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:38" (1/1) ... [2024-11-20 17:38:38,302 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:38" (1/1) ... [2024-11-20 17:38:38,308 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:38" (1/1) ... [2024-11-20 17:38:38,309 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:38" (1/1) ... [2024-11-20 17:38:38,312 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:38" (1/1) ... [2024-11-20 17:38:38,313 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 17:38:38,314 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 17:38:38,314 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 17:38:38,314 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 17:38:38,315 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:38" (1/1) ... [2024-11-20 17:38:38,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:38:38,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:38:38,341 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 17:38:38,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 17:38:38,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 17:38:38,384 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-20 17:38:38,384 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-20 17:38:38,385 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-20 17:38:38,385 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-20 17:38:38,385 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-20 17:38:38,386 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-20 17:38:38,386 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-20 17:38:38,386 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-20 17:38:38,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 17:38:38,386 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-11-20 17:38:38,387 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-11-20 17:38:38,387 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-11-20 17:38:38,387 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-11-20 17:38:38,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 17:38:38,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 17:38:38,389 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 17:38:38,508 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 17:38:38,510 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 17:38:38,743 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 17:38:38,747 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 17:38:38,896 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 17:38:38,897 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-20 17:38:38,897 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:38:38 BoogieIcfgContainer [2024-11-20 17:38:38,898 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 17:38:38,900 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 17:38:38,901 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 17:38:38,903 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 17:38:38,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:38:37" (1/3) ... [2024-11-20 17:38:38,905 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@380c2cf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:38:38, skipping insertion in model container [2024-11-20 17:38:38,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:38" (2/3) ... [2024-11-20 17:38:38,906 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@380c2cf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:38:38, skipping insertion in model container [2024-11-20 17:38:38,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:38:38" (3/3) ... [2024-11-20 17:38:38,907 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp3x3-opt.wvr.c [2024-11-20 17:38:38,919 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 17:38:38,919 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-20 17:38:38,919 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 17:38:38,964 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2024-11-20 17:38:38,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 48 transitions, 138 flow [2024-11-20 17:38:39,019 INFO L124 PetriNetUnfolderBase]: 6/42 cut-off events. [2024-11-20 17:38:39,019 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-20 17:38:39,022 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. [2024-11-20 17:38:39,023 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 48 transitions, 138 flow [2024-11-20 17:38:39,027 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 41 transitions, 118 flow [2024-11-20 17:38:39,036 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 17:38:39,041 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;@68e7b547, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 17:38:39,041 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-20 17:38:39,059 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 17:38:39,059 INFO L124 PetriNetUnfolderBase]: 6/38 cut-off events. [2024-11-20 17:38:39,060 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-20 17:38:39,060 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:38:39,061 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] [2024-11-20 17:38:39,062 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)] === [2024-11-20 17:38:39,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:38:39,066 INFO L85 PathProgramCache]: Analyzing trace with hash -135870467, now seen corresponding path program 1 times [2024-11-20 17:38:39,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:38:39,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478462950] [2024-11-20 17:38:39,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:38:39,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:38:39,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:38:39,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:38:39,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:38:39,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478462950] [2024-11-20 17:38:39,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478462950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:38:39,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:38:39,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 17:38:39,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015128365] [2024-11-20 17:38:39,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:38:39,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:38:39,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:38:39,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:38:39,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:38:39,522 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-20 17:38:39,524 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) [2024-11-20 17:38:39,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:38:39,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-20 17:38:39,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:38:41,074 INFO L124 PetriNetUnfolderBase]: 21779/25317 cut-off events. [2024-11-20 17:38:41,076 INFO L125 PetriNetUnfolderBase]: For 1331/1331 co-relation queries the response was YES. [2024-11-20 17:38:41,135 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. [2024-11-20 17:38:41,303 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 49 selfloop transitions, 3 changer transitions 1/60 dead transitions. [2024-11-20 17:38:41,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 60 transitions, 283 flow [2024-11-20 17:38:41,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:38:41,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:38:41,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2024-11-20 17:38:41,315 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6736111111111112 [2024-11-20 17:38:41,316 INFO L175 Difference]: Start difference. First operand has 54 places, 41 transitions, 118 flow. Second operand 3 states and 97 transitions. [2024-11-20 17:38:41,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 60 transitions, 283 flow [2024-11-20 17:38:41,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 60 transitions, 245 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-11-20 17:38:41,374 INFO L231 Difference]: Finished difference. Result has 43 places, 41 transitions, 109 flow [2024-11-20 17:38:41,376 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} [2024-11-20 17:38:41,380 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, -11 predicate places. [2024-11-20 17:38:41,381 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 41 transitions, 109 flow [2024-11-20 17:38:41,381 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) [2024-11-20 17:38:41,381 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:38:41,381 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] [2024-11-20 17:38:41,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 17:38:41,382 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)] === [2024-11-20 17:38:41,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:38:41,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1904440649, now seen corresponding path program 1 times [2024-11-20 17:38:41,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:38:41,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006765477] [2024-11-20 17:38:41,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:38:41,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:38:41,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:38:41,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 17:38:41,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:38:41,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006765477] [2024-11-20 17:38:41,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006765477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:38:41,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:38:41,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 17:38:41,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022413458] [2024-11-20 17:38:41,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:38:41,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:38:41,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:38:41,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:38:41,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:38:41,508 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-20 17:38:41,509 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) [2024-11-20 17:38:41,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:38:41,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-20 17:38:41,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:38:43,027 INFO L124 PetriNetUnfolderBase]: 27521/32101 cut-off events. [2024-11-20 17:38:43,027 INFO L125 PetriNetUnfolderBase]: For 4232/4232 co-relation queries the response was YES. [2024-11-20 17:38:43,063 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. [2024-11-20 17:38:43,161 INFO L140 encePairwiseOnDemand]: 44/48 looper letters, 55 selfloop transitions, 3 changer transitions 3/68 dead transitions. [2024-11-20 17:38:43,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 68 transitions, 304 flow [2024-11-20 17:38:43,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:38:43,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:38:43,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2024-11-20 17:38:43,164 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6944444444444444 [2024-11-20 17:38:43,164 INFO L175 Difference]: Start difference. First operand has 43 places, 41 transitions, 109 flow. Second operand 3 states and 100 transitions. [2024-11-20 17:38:43,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 68 transitions, 304 flow [2024-11-20 17:38:43,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 68 transitions, 299 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:38:43,167 INFO L231 Difference]: Finished difference. Result has 45 places, 43 transitions, 125 flow [2024-11-20 17:38:43,167 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} [2024-11-20 17:38:43,168 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, -9 predicate places. [2024-11-20 17:38:43,168 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 43 transitions, 125 flow [2024-11-20 17:38:43,169 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) [2024-11-20 17:38:43,169 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:38:43,169 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] [2024-11-20 17:38:43,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 17:38:43,169 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)] === [2024-11-20 17:38:43,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:38:43,170 INFO L85 PathProgramCache]: Analyzing trace with hash -2091292790, now seen corresponding path program 1 times [2024-11-20 17:38:43,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:38:43,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654762908] [2024-11-20 17:38:43,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:38:43,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:38:43,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:38:43,261 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 17:38:43,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:38:43,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654762908] [2024-11-20 17:38:43,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654762908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:38:43,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:38:43,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 17:38:43,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863166131] [2024-11-20 17:38:43,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:38:43,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:38:43,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:38:43,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:38:43,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:38:43,267 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-20 17:38:43,267 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) [2024-11-20 17:38:43,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:38:43,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-20 17:38:43,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:38:45,110 INFO L124 PetriNetUnfolderBase]: 36425/42807 cut-off events. [2024-11-20 17:38:45,111 INFO L125 PetriNetUnfolderBase]: For 12474/12474 co-relation queries the response was YES. [2024-11-20 17:38:45,162 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. [2024-11-20 17:38:45,315 INFO L140 encePairwiseOnDemand]: 44/48 looper letters, 61 selfloop transitions, 3 changer transitions 5/76 dead transitions. [2024-11-20 17:38:45,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 76 transitions, 358 flow [2024-11-20 17:38:45,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:38:45,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:38:45,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2024-11-20 17:38:45,318 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7222222222222222 [2024-11-20 17:38:45,318 INFO L175 Difference]: Start difference. First operand has 45 places, 43 transitions, 125 flow. Second operand 3 states and 104 transitions. [2024-11-20 17:38:45,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 76 transitions, 358 flow [2024-11-20 17:38:45,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 76 transitions, 353 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:38:45,323 INFO L231 Difference]: Finished difference. Result has 47 places, 45 transitions, 141 flow [2024-11-20 17:38:45,323 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} [2024-11-20 17:38:45,324 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, -7 predicate places. [2024-11-20 17:38:45,324 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 45 transitions, 141 flow [2024-11-20 17:38:45,325 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) [2024-11-20 17:38:45,325 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:38:45,325 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] [2024-11-20 17:38:45,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 17:38:45,325 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)] === [2024-11-20 17:38:45,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:38:45,326 INFO L85 PathProgramCache]: Analyzing trace with hash 657790201, now seen corresponding path program 1 times [2024-11-20 17:38:45,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:38:45,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349328601] [2024-11-20 17:38:45,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:38:45,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:38:45,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:38:45,444 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 17:38:45,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:38:45,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349328601] [2024-11-20 17:38:45,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349328601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:38:45,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:38:45,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:38:45,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554170868] [2024-11-20 17:38:45,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:38:45,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:38:45,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:38:45,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:38:45,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:38:45,447 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-20 17:38:45,447 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) [2024-11-20 17:38:45,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:38:45,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-20 17:38:45,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:38:47,319 INFO L124 PetriNetUnfolderBase]: 36299/42569 cut-off events. [2024-11-20 17:38:47,319 INFO L125 PetriNetUnfolderBase]: For 16223/16223 co-relation queries the response was YES. [2024-11-20 17:38:47,390 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. [2024-11-20 17:38:47,707 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 106 selfloop transitions, 6 changer transitions 8/127 dead transitions. [2024-11-20 17:38:47,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 127 transitions, 619 flow [2024-11-20 17:38:47,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 17:38:47,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 17:38:47,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 175 transitions. [2024-11-20 17:38:47,709 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2024-11-20 17:38:47,709 INFO L175 Difference]: Start difference. First operand has 47 places, 45 transitions, 141 flow. Second operand 5 states and 175 transitions. [2024-11-20 17:38:47,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 127 transitions, 619 flow [2024-11-20 17:38:47,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 127 transitions, 615 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:38:47,712 INFO L231 Difference]: Finished difference. Result has 51 places, 47 transitions, 162 flow [2024-11-20 17:38:47,712 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} [2024-11-20 17:38:47,713 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, -3 predicate places. [2024-11-20 17:38:47,713 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 47 transitions, 162 flow [2024-11-20 17:38:47,714 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) [2024-11-20 17:38:47,714 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:38:47,714 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] [2024-11-20 17:38:47,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 17:38:47,714 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)] === [2024-11-20 17:38:47,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:38:47,715 INFO L85 PathProgramCache]: Analyzing trace with hash -503768265, now seen corresponding path program 2 times [2024-11-20 17:38:47,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:38:47,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220828224] [2024-11-20 17:38:47,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:38:47,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:38:47,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:38:47,787 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 17:38:47,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:38:47,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220828224] [2024-11-20 17:38:47,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220828224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:38:47,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:38:47,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:38:47,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188717428] [2024-11-20 17:38:47,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:38:47,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:38:47,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:38:47,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:38:47,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:38:47,791 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-20 17:38:47,791 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) [2024-11-20 17:38:47,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:38:47,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-20 17:38:47,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:38:49,911 INFO L124 PetriNetUnfolderBase]: 37123/44080 cut-off events. [2024-11-20 17:38:49,911 INFO L125 PetriNetUnfolderBase]: For 26595/26595 co-relation queries the response was YES. [2024-11-20 17:38:49,983 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. [2024-11-20 17:38:50,091 INFO L140 encePairwiseOnDemand]: 42/48 looper letters, 108 selfloop transitions, 6 changer transitions 7/128 dead transitions. [2024-11-20 17:38:50,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 128 transitions, 693 flow [2024-11-20 17:38:50,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 17:38:50,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 17:38:50,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 170 transitions. [2024-11-20 17:38:50,092 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2024-11-20 17:38:50,092 INFO L175 Difference]: Start difference. First operand has 51 places, 47 transitions, 162 flow. Second operand 5 states and 170 transitions. [2024-11-20 17:38:50,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 128 transitions, 693 flow [2024-11-20 17:38:50,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 128 transitions, 680 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:38:50,097 INFO L231 Difference]: Finished difference. Result has 56 places, 50 transitions, 195 flow [2024-11-20 17:38:50,098 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} [2024-11-20 17:38:50,098 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 2 predicate places. [2024-11-20 17:38:50,099 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 50 transitions, 195 flow [2024-11-20 17:38:50,099 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) [2024-11-20 17:38:50,099 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:38:50,099 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] [2024-11-20 17:38:50,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 17:38:50,100 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)] === [2024-11-20 17:38:50,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:38:50,100 INFO L85 PathProgramCache]: Analyzing trace with hash -440138048, now seen corresponding path program 1 times [2024-11-20 17:38:50,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:38:50,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131821633] [2024-11-20 17:38:50,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:38:50,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:38:50,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:38:50,173 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 17:38:50,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:38:50,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131821633] [2024-11-20 17:38:50,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131821633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:38:50,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:38:50,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:38:50,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872332399] [2024-11-20 17:38:50,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:38:50,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:38:50,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:38:50,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:38:50,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:38:50,177 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-20 17:38:50,177 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) [2024-11-20 17:38:50,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:38:50,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-20 17:38:50,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:38:52,455 INFO L124 PetriNetUnfolderBase]: 36029/42952 cut-off events. [2024-11-20 17:38:52,455 INFO L125 PetriNetUnfolderBase]: For 43102/43102 co-relation queries the response was YES. [2024-11-20 17:38:52,549 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. [2024-11-20 17:38:52,856 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 118 selfloop transitions, 7 changer transitions 6/138 dead transitions. [2024-11-20 17:38:52,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 138 transitions, 793 flow [2024-11-20 17:38:52,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 17:38:52,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 17:38:52,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 174 transitions. [2024-11-20 17:38:52,857 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.725 [2024-11-20 17:38:52,857 INFO L175 Difference]: Start difference. First operand has 56 places, 50 transitions, 195 flow. Second operand 5 states and 174 transitions. [2024-11-20 17:38:52,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 138 transitions, 793 flow [2024-11-20 17:38:52,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 138 transitions, 776 flow, removed 4 selfloop flow, removed 1 redundant places. [2024-11-20 17:38:52,878 INFO L231 Difference]: Finished difference. Result has 61 places, 53 transitions, 229 flow [2024-11-20 17:38:52,878 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} [2024-11-20 17:38:52,881 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 7 predicate places. [2024-11-20 17:38:52,881 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 53 transitions, 229 flow [2024-11-20 17:38:52,882 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) [2024-11-20 17:38:52,882 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:38:52,882 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:38:52,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 17:38:52,882 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)] === [2024-11-20 17:38:52,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:38:52,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1825088497, now seen corresponding path program 1 times [2024-11-20 17:38:52,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:38:52,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690190197] [2024-11-20 17:38:52,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:38:52,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:38:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:38:52,972 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 17:38:52,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:38:52,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690190197] [2024-11-20 17:38:52,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690190197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:38:52,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:38:52,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:38:52,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730014256] [2024-11-20 17:38:52,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:38:52,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:38:52,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:38:52,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:38:52,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:38:52,974 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-20 17:38:52,974 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) [2024-11-20 17:38:52,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:38:52,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-20 17:38:52,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:38:55,147 INFO L124 PetriNetUnfolderBase]: 35571/42407 cut-off events. [2024-11-20 17:38:55,147 INFO L125 PetriNetUnfolderBase]: For 49767/49767 co-relation queries the response was YES. [2024-11-20 17:38:55,233 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. [2024-11-20 17:38:55,346 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 93 selfloop transitions, 4 changer transitions 34/138 dead transitions. [2024-11-20 17:38:55,347 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 138 transitions, 806 flow [2024-11-20 17:38:55,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 17:38:55,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 17:38:55,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 171 transitions. [2024-11-20 17:38:55,348 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7125 [2024-11-20 17:38:55,348 INFO L175 Difference]: Start difference. First operand has 61 places, 53 transitions, 229 flow. Second operand 5 states and 171 transitions. [2024-11-20 17:38:55,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 138 transitions, 806 flow [2024-11-20 17:38:55,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 138 transitions, 801 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-20 17:38:55,637 INFO L231 Difference]: Finished difference. Result has 64 places, 51 transitions, 220 flow [2024-11-20 17:38:55,637 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} [2024-11-20 17:38:55,638 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 10 predicate places. [2024-11-20 17:38:55,638 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 51 transitions, 220 flow [2024-11-20 17:38:55,638 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) [2024-11-20 17:38:55,638 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:38:55,638 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] [2024-11-20 17:38:55,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 17:38:55,638 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)] === [2024-11-20 17:38:55,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:38:55,639 INFO L85 PathProgramCache]: Analyzing trace with hash 848372935, now seen corresponding path program 2 times [2024-11-20 17:38:55,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:38:55,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660616140] [2024-11-20 17:38:55,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:38:55,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:38:55,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:38:55,714 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 17:38:55,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:38:55,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660616140] [2024-11-20 17:38:55,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660616140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:38:55,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:38:55,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:38:55,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807454696] [2024-11-20 17:38:55,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:38:55,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:38:55,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:38:55,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:38:55,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:38:55,716 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-20 17:38:55,717 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) [2024-11-20 17:38:55,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:38:55,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-20 17:38:55,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:38:57,534 INFO L124 PetriNetUnfolderBase]: 28207/33435 cut-off events. [2024-11-20 17:38:57,534 INFO L125 PetriNetUnfolderBase]: For 51206/51206 co-relation queries the response was YES. [2024-11-20 17:38:57,616 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. [2024-11-20 17:38:57,701 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 89 selfloop transitions, 4 changer transitions 34/134 dead transitions. [2024-11-20 17:38:57,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 134 transitions, 848 flow [2024-11-20 17:38:57,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 17:38:57,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 17:38:57,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 166 transitions. [2024-11-20 17:38:57,702 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6916666666666667 [2024-11-20 17:38:57,702 INFO L175 Difference]: Start difference. First operand has 64 places, 51 transitions, 220 flow. Second operand 5 states and 166 transitions. [2024-11-20 17:38:57,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 134 transitions, 848 flow [2024-11-20 17:38:57,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 134 transitions, 820 flow, removed 5 selfloop flow, removed 2 redundant places. [2024-11-20 17:38:57,866 INFO L231 Difference]: Finished difference. Result has 65 places, 51 transitions, 223 flow [2024-11-20 17:38:57,866 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} [2024-11-20 17:38:57,867 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 11 predicate places. [2024-11-20 17:38:57,867 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 51 transitions, 223 flow [2024-11-20 17:38:57,867 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) [2024-11-20 17:38:57,867 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:38:57,867 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] [2024-11-20 17:38:57,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 17:38:57,867 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)] === [2024-11-20 17:38:57,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:38:57,868 INFO L85 PathProgramCache]: Analyzing trace with hash -42472201, now seen corresponding path program 3 times [2024-11-20 17:38:57,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:38:57,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979100219] [2024-11-20 17:38:57,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:38:57,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:38:57,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:38:57,971 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 17:38:57,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:38:57,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979100219] [2024-11-20 17:38:57,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979100219] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:38:57,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744827011] [2024-11-20 17:38:57,972 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-20 17:38:57,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:38:57,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:38:57,975 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 17:38:57,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 17:38:58,049 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-20 17:38:58,049 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 17:38:58,051 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 17:38:58,057 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:38:58,404 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 17:38:58,404 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 17:38:59,282 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 17:38:59,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744827011] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 17:38:59,283 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 17:38:59,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-11-20 17:38:59,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473692451] [2024-11-20 17:38:59,283 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 17:38:59,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 17:38:59,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:38:59,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 17:38:59,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-20 17:38:59,284 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-20 17:38:59,285 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) [2024-11-20 17:38:59,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:38:59,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-20 17:38:59,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:39:01,520 INFO L124 PetriNetUnfolderBase]: 22317/26660 cut-off events. [2024-11-20 17:39:01,521 INFO L125 PetriNetUnfolderBase]: For 47572/47572 co-relation queries the response was YES. [2024-11-20 17:39:01,572 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. [2024-11-20 17:39:01,660 INFO L140 encePairwiseOnDemand]: 37/48 looper letters, 299 selfloop transitions, 61 changer transitions 7/374 dead transitions. [2024-11-20 17:39:01,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 374 transitions, 2584 flow [2024-11-20 17:39:01,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 17:39:01,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-20 17:39:01,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 551 transitions. [2024-11-20 17:39:01,662 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6041666666666666 [2024-11-20 17:39:01,662 INFO L175 Difference]: Start difference. First operand has 65 places, 51 transitions, 223 flow. Second operand 19 states and 551 transitions. [2024-11-20 17:39:01,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 374 transitions, 2584 flow [2024-11-20 17:39:01,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 374 transitions, 2543 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-20 17:39:01,727 INFO L231 Difference]: Finished difference. Result has 95 places, 115 transitions, 855 flow [2024-11-20 17:39:01,727 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} [2024-11-20 17:39:01,727 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 41 predicate places. [2024-11-20 17:39:01,728 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 115 transitions, 855 flow [2024-11-20 17:39:01,728 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) [2024-11-20 17:39:01,728 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:39:01,728 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] [2024-11-20 17:39:01,735 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 17:39:01,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:39:01,929 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)] === [2024-11-20 17:39:01,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:39:01,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1082739710, now seen corresponding path program 1 times [2024-11-20 17:39:01,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:39:01,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291125784] [2024-11-20 17:39:01,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:39:01,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:39:01,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:39:02,027 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 17:39:02,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:39:02,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291125784] [2024-11-20 17:39:02,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291125784] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:39:02,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762639904] [2024-11-20 17:39:02,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:39:02,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:39:02,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:39:02,031 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 17:39:02,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 17:39:02,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:39:02,106 INFO L255 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 17:39:02,108 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:39:02,167 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-20 17:39:02,167 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 17:39:02,227 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-20 17:39:02,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [762639904] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 17:39:02,227 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 17:39:02,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-20 17:39:02,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295503229] [2024-11-20 17:39:02,228 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 17:39:02,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 17:39:02,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:39:02,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 17:39:02,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 17:39:02,229 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-20 17:39:02,229 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) [2024-11-20 17:39:02,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:39:02,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-20 17:39:02,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:39:04,522 INFO L124 PetriNetUnfolderBase]: 21214/25562 cut-off events. [2024-11-20 17:39:04,522 INFO L125 PetriNetUnfolderBase]: For 191104/191104 co-relation queries the response was YES. [2024-11-20 17:39:04,615 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. [2024-11-20 17:39:04,708 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 439 selfloop transitions, 76 changer transitions 205/727 dead transitions. [2024-11-20 17:39:04,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 727 transitions, 7320 flow [2024-11-20 17:39:04,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-20 17:39:04,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-20 17:39:04,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 510 transitions. [2024-11-20 17:39:04,710 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-11-20 17:39:04,710 INFO L175 Difference]: Start difference. First operand has 95 places, 115 transitions, 855 flow. Second operand 17 states and 510 transitions. [2024-11-20 17:39:04,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 727 transitions, 7320 flow [2024-11-20 17:39:05,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 727 transitions, 6918 flow, removed 144 selfloop flow, removed 2 redundant places. [2024-11-20 17:39:05,237 INFO L231 Difference]: Finished difference. Result has 119 places, 177 transitions, 1668 flow [2024-11-20 17:39:05,237 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} [2024-11-20 17:39:05,237 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 65 predicate places. [2024-11-20 17:39:05,238 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 177 transitions, 1668 flow [2024-11-20 17:39:05,238 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) [2024-11-20 17:39:05,238 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:39:05,238 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] [2024-11-20 17:39:05,246 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 17:39:05,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-20 17:39:05,439 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)] === [2024-11-20 17:39:05,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:39:05,440 INFO L85 PathProgramCache]: Analyzing trace with hash -255496898, now seen corresponding path program 1 times [2024-11-20 17:39:05,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:39:05,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881708524] [2024-11-20 17:39:05,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:39:05,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:39:05,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:39:05,529 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 17:39:05,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:39:05,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881708524] [2024-11-20 17:39:05,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881708524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:39:05,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:39:05,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:39:05,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235492210] [2024-11-20 17:39:05,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:39:05,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:39:05,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:39:05,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:39:05,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:39:05,532 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-20 17:39:05,532 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) [2024-11-20 17:39:05,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:39:05,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-20 17:39:05,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:39:07,590 INFO L124 PetriNetUnfolderBase]: 14634/17716 cut-off events. [2024-11-20 17:39:07,590 INFO L125 PetriNetUnfolderBase]: For 204069/204069 co-relation queries the response was YES. [2024-11-20 17:39:07,672 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. [2024-11-20 17:39:07,763 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 217 selfloop transitions, 39 changer transitions 0/263 dead transitions. [2024-11-20 17:39:07,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 263 transitions, 2993 flow [2024-11-20 17:39:07,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 17:39:07,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 17:39:07,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 151 transitions. [2024-11-20 17:39:07,765 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6291666666666667 [2024-11-20 17:39:07,765 INFO L175 Difference]: Start difference. First operand has 119 places, 177 transitions, 1668 flow. Second operand 5 states and 151 transitions. [2024-11-20 17:39:07,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 263 transitions, 2993 flow [2024-11-20 17:39:08,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 263 transitions, 2854 flow, removed 60 selfloop flow, removed 3 redundant places. [2024-11-20 17:39:08,318 INFO L231 Difference]: Finished difference. Result has 118 places, 183 transitions, 1795 flow [2024-11-20 17:39:08,318 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} [2024-11-20 17:39:08,319 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 64 predicate places. [2024-11-20 17:39:08,319 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 183 transitions, 1795 flow [2024-11-20 17:39:08,319 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) [2024-11-20 17:39:08,319 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:39:08,319 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] [2024-11-20 17:39:08,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 17:39:08,319 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)] === [2024-11-20 17:39:08,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:39:08,320 INFO L85 PathProgramCache]: Analyzing trace with hash 626904524, now seen corresponding path program 1 times [2024-11-20 17:39:08,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:39:08,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295457304] [2024-11-20 17:39:08,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:39:08,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:39:08,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:39:08,775 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-20 17:39:08,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:39:08,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295457304] [2024-11-20 17:39:08,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295457304] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:39:08,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827618471] [2024-11-20 17:39:08,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:39:08,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:39:08,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:39:08,779 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 17:39:08,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 17:39:08,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:39:08,950 INFO L255 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-20 17:39:08,951 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:39:12,427 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-20 17:39:12,427 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 17:39:13,344 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 17:39:13,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827618471] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 17:39:13,345 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 17:39:13,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 16 [2024-11-20 17:39:13,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114240291] [2024-11-20 17:39:13,345 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 17:39:13,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-20 17:39:13,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:39:13,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-20 17:39:13,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2024-11-20 17:39:13,347 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-20 17:39:13,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 183 transitions, 1795 flow. Second operand has 17 states, 17 states have (on average 19.529411764705884) internal successors, (332), 17 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:39:13,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:39:13,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-20 17:39:13,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:39:22,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-20 17:39:32,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-20 17:39:37,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-20 17:39:42,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-20 17:39:47,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-20 17:39:49,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.60s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-20 17:39:58,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.88s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-20 17:40:10,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []