./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix018_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix018_power.oepc_pso.oepc_rmo.oepc.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5a744aa24a15b244d86986861038a45981c329f5578e2da992d82373e2f73c5a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:31:42,677 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:31:42,726 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 19:31:42,732 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:31:42,733 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:31:42,752 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:31:42,752 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:31:42,752 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:31:42,753 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:31:42,756 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:31:42,756 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:31:42,756 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:31:42,756 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:31:42,756 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:31:42,757 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:31:42,757 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:31:42,757 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:31:42,757 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:31:42,757 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:31:42,757 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:31:42,757 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:31:42,759 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:31:42,759 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:31:42,759 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:31:42,759 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:31:42,759 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:31:42,760 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:31:42,760 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:31:42,760 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:31:42,760 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:31:42,761 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:31:42,761 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:31:42,761 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:31:42,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:31:42,762 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:31:42,762 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:31:42,762 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 19:31:42,762 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 19:31:42,762 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:31:42,763 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:31:42,763 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:31:42,763 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:31:42,763 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a744aa24a15b244d86986861038a45981c329f5578e2da992d82373e2f73c5a [2024-10-11 19:31:42,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:31:42,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:31:42,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:31:42,985 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:31:42,989 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:31:42,990 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix018_power.oepc_pso.oepc_rmo.oepc.i [2024-10-11 19:31:44,203 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:31:44,432 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:31:44,432 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix018_power.oepc_pso.oepc_rmo.oepc.i [2024-10-11 19:31:44,468 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/65c8b9ca5/1f70f2e2a2594904981a8abefc1839a7/FLAG0aca828f4 [2024-10-11 19:31:44,769 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/65c8b9ca5/1f70f2e2a2594904981a8abefc1839a7 [2024-10-11 19:31:44,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:31:44,772 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:31:44,773 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:31:44,773 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:31:44,777 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:31:44,778 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:31:44" (1/1) ... [2024-10-11 19:31:44,778 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bd5a5a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:31:44, skipping insertion in model container [2024-10-11 19:31:44,778 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:31:44" (1/1) ... [2024-10-11 19:31:44,814 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:31:45,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:31:45,132 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:31:45,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:31:45,201 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:31:45,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:31:45 WrapperNode [2024-10-11 19:31:45,202 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:31:45,203 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:31:45,203 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:31:45,204 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:31:45,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:31:45" (1/1) ... [2024-10-11 19:31:45,229 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:31:45" (1/1) ... [2024-10-11 19:31:45,248 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 132 [2024-10-11 19:31:45,248 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:31:45,249 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:31:45,249 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:31:45,249 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:31:45,256 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:31:45" (1/1) ... [2024-10-11 19:31:45,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:31:45" (1/1) ... [2024-10-11 19:31:45,260 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:31:45" (1/1) ... [2024-10-11 19:31:45,271 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-11 19:31:45,271 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:31:45" (1/1) ... [2024-10-11 19:31:45,271 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:31:45" (1/1) ... [2024-10-11 19:31:45,276 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:31:45" (1/1) ... [2024-10-11 19:31:45,277 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:31:45" (1/1) ... [2024-10-11 19:31:45,279 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:31:45" (1/1) ... [2024-10-11 19:31:45,280 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:31:45" (1/1) ... [2024-10-11 19:31:45,282 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:31:45,287 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:31:45,287 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:31:45,287 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:31:45,287 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:31:45" (1/1) ... [2024-10-11 19:31:45,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:31:45,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:31:45,320 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 19:31:45,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 19:31:45,359 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 19:31:45,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:31:45,359 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-11 19:31:45,359 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-11 19:31:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-11 19:31:45,360 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-11 19:31:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-11 19:31:45,360 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-11 19:31:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-11 19:31:45,360 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-11 19:31:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 19:31:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 19:31:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:31:45,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:31:45,361 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 19:31:45,456 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:31:45,458 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:31:45,718 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 19:31:45,718 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:31:45,926 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:31:45,926 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 19:31:45,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:31:45 BoogieIcfgContainer [2024-10-11 19:31:45,927 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:31:45,928 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:31:45,928 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:31:45,932 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:31:45,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:31:44" (1/3) ... [2024-10-11 19:31:45,933 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cb81ed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:31:45, skipping insertion in model container [2024-10-11 19:31:45,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:31:45" (2/3) ... [2024-10-11 19:31:45,933 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cb81ed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:31:45, skipping insertion in model container [2024-10-11 19:31:45,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:31:45" (3/3) ... [2024-10-11 19:31:45,935 INFO L112 eAbstractionObserver]: Analyzing ICFG mix018_power.oepc_pso.oepc_rmo.oepc.i [2024-10-11 19:31:45,948 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:31:45,948 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-11 19:31:45,948 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 19:31:45,994 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 19:31:46,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 54 transitions, 124 flow [2024-10-11 19:31:46,051 INFO L124 PetriNetUnfolderBase]: 2/50 cut-off events. [2024-10-11 19:31:46,051 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:31:46,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 50 events. 2/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 104 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2024-10-11 19:31:46,055 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 54 transitions, 124 flow [2024-10-11 19:31:46,059 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 50 transitions, 112 flow [2024-10-11 19:31:46,067 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:31:46,075 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;@205be945, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:31:46,075 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-11 19:31:46,079 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 19:31:46,079 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-10-11 19:31:46,079 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:31:46,079 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:31:46,080 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-11 19:31:46,080 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:31:46,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:31:46,085 INFO L85 PathProgramCache]: Analyzing trace with hash 12922266, now seen corresponding path program 1 times [2024-10-11 19:31:46,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:31:46,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357794698] [2024-10-11 19:31:46,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:31:46,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:31:46,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:31:46,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:31:46,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:31:46,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357794698] [2024-10-11 19:31:46,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357794698] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:31:46,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:31:46,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:31:46,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177881726] [2024-10-11 19:31:46,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:31:46,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:31:46,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:31:46,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:31:46,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:31:46,449 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 54 [2024-10-11 19:31:46,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:31:46,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:31:46,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 54 [2024-10-11 19:31:46,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:31:47,224 INFO L124 PetriNetUnfolderBase]: 3311/5438 cut-off events. [2024-10-11 19:31:47,226 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-11 19:31:47,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10118 conditions, 5438 events. 3311/5438 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 39063 event pairs, 593 based on Foata normal form. 288/5669 useless extension candidates. Maximal degree in co-relation 10106. Up to 3661 conditions per place. [2024-10-11 19:31:47,260 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 41 selfloop transitions, 2 changer transitions 2/66 dead transitions. [2024-10-11 19:31:47,260 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 66 transitions, 243 flow [2024-10-11 19:31:47,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:31:47,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:31:47,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 125 transitions. [2024-10-11 19:31:47,269 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7716049382716049 [2024-10-11 19:31:47,270 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 112 flow. Second operand 3 states and 125 transitions. [2024-10-11 19:31:47,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 66 transitions, 243 flow [2024-10-11 19:31:47,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 66 transitions, 236 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-11 19:31:47,277 INFO L231 Difference]: Finished difference. Result has 57 places, 45 transitions, 102 flow [2024-10-11 19:31:47,280 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=57, PETRI_TRANSITIONS=45} [2024-10-11 19:31:47,282 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2024-10-11 19:31:47,283 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 45 transitions, 102 flow [2024-10-11 19:31:47,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:31:47,284 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:31:47,284 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:31:47,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 19:31:47,285 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:31:47,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:31:47,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1204687332, now seen corresponding path program 1 times [2024-10-11 19:31:47,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:31:47,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046507617] [2024-10-11 19:31:47,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:31:47,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:31:47,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:31:47,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:31:47,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:31:47,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046507617] [2024-10-11 19:31:47,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046507617] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:31:47,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:31:47,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:31:47,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838808686] [2024-10-11 19:31:47,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:31:47,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:31:47,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:31:47,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:31:47,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:31:47,402 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 54 [2024-10-11 19:31:47,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:31:47,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:31:47,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 54 [2024-10-11 19:31:47,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:31:47,996 INFO L124 PetriNetUnfolderBase]: 2903/4911 cut-off events. [2024-10-11 19:31:47,996 INFO L125 PetriNetUnfolderBase]: For 278/278 co-relation queries the response was YES. [2024-10-11 19:31:48,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9315 conditions, 4911 events. 2903/4911 cut-off events. For 278/278 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 34711 event pairs, 2903 based on Foata normal form. 144/4880 useless extension candidates. Maximal degree in co-relation 9305. Up to 4016 conditions per place. [2024-10-11 19:31:48,018 INFO L140 encePairwiseOnDemand]: 52/54 looper letters, 22 selfloop transitions, 1 changer transitions 1/44 dead transitions. [2024-10-11 19:31:48,018 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 44 transitions, 148 flow [2024-10-11 19:31:48,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:31:48,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:31:48,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2024-10-11 19:31:48,019 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5987654320987654 [2024-10-11 19:31:48,019 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 97 transitions. [2024-10-11 19:31:48,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 44 transitions, 148 flow [2024-10-11 19:31:48,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 44 transitions, 144 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 19:31:48,021 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 96 flow [2024-10-11 19:31:48,021 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2024-10-11 19:31:48,021 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -6 predicate places. [2024-10-11 19:31:48,021 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 96 flow [2024-10-11 19:31:48,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:31:48,022 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:31:48,022 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:31:48,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 19:31:48,022 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:31:48,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:31:48,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1204688585, now seen corresponding path program 1 times [2024-10-11 19:31:48,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:31:48,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539221979] [2024-10-11 19:31:48,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:31:48,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:31:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:31:48,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:31:48,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:31:48,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539221979] [2024-10-11 19:31:48,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539221979] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:31:48,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:31:48,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:31:48,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695357785] [2024-10-11 19:31:48,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:31:48,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:31:48,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:31:48,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:31:48,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:31:48,275 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 54 [2024-10-11 19:31:48,275 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:31:48,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:31:48,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 54 [2024-10-11 19:31:48,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:31:51,711 INFO L124 PetriNetUnfolderBase]: 26337/38133 cut-off events. [2024-10-11 19:31:51,711 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:31:51,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74020 conditions, 38133 events. 26337/38133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1700. Compared 273206 event pairs, 7155 based on Foata normal form. 0/37232 useless extension candidates. Maximal degree in co-relation 74014. Up to 16162 conditions per place. [2024-10-11 19:31:51,904 INFO L140 encePairwiseOnDemand]: 43/54 looper letters, 46 selfloop transitions, 7 changer transitions 95/161 dead transitions. [2024-10-11 19:31:51,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 161 transitions, 632 flow [2024-10-11 19:31:51,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 19:31:51,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 19:31:51,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 312 transitions. [2024-10-11 19:31:51,908 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6419753086419753 [2024-10-11 19:31:51,909 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 96 flow. Second operand 9 states and 312 transitions. [2024-10-11 19:31:51,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 161 transitions, 632 flow [2024-10-11 19:31:51,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 161 transitions, 631 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:31:51,913 INFO L231 Difference]: Finished difference. Result has 69 places, 48 transitions, 191 flow [2024-10-11 19:31:51,914 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=191, PETRI_PLACES=69, PETRI_TRANSITIONS=48} [2024-10-11 19:31:51,915 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 8 predicate places. [2024-10-11 19:31:51,915 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 48 transitions, 191 flow [2024-10-11 19:31:51,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:31:51,916 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:31:51,916 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:31:51,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 19:31:51,916 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:31:51,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:31:51,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1301961816, now seen corresponding path program 1 times [2024-10-11 19:31:51,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:31:51,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782307442] [2024-10-11 19:31:51,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:31:51,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:31:51,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:31:52,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:31:52,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:31:52,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782307442] [2024-10-11 19:31:52,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782307442] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:31:52,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:31:52,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:31:52,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488070238] [2024-10-11 19:31:52,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:31:52,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:31:52,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:31:52,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:31:52,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:31:52,034 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 54 [2024-10-11 19:31:52,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 48 transitions, 191 flow. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:31:52,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:31:52,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 54 [2024-10-11 19:31:52,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:31:54,680 INFO L124 PetriNetUnfolderBase]: 14993/23725 cut-off events. [2024-10-11 19:31:54,680 INFO L125 PetriNetUnfolderBase]: For 22319/23673 co-relation queries the response was YES. [2024-10-11 19:31:54,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62959 conditions, 23725 events. 14993/23725 cut-off events. For 22319/23673 co-relation queries the response was YES. Maximal size of possible extension queue 1161. Compared 186163 event pairs, 4205 based on Foata normal form. 920/24090 useless extension candidates. Maximal degree in co-relation 62944. Up to 13036 conditions per place. [2024-10-11 19:31:54,836 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 34 selfloop transitions, 3 changer transitions 43/101 dead transitions. [2024-10-11 19:31:54,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 101 transitions, 515 flow [2024-10-11 19:31:54,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:31:54,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:31:54,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 230 transitions. [2024-10-11 19:31:54,838 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6084656084656085 [2024-10-11 19:31:54,838 INFO L175 Difference]: Start difference. First operand has 69 places, 48 transitions, 191 flow. Second operand 7 states and 230 transitions. [2024-10-11 19:31:54,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 101 transitions, 515 flow [2024-10-11 19:31:55,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 101 transitions, 465 flow, removed 14 selfloop flow, removed 4 redundant places. [2024-10-11 19:31:55,018 INFO L231 Difference]: Finished difference. Result has 69 places, 48 transitions, 180 flow [2024-10-11 19:31:55,019 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=180, PETRI_PLACES=69, PETRI_TRANSITIONS=48} [2024-10-11 19:31:55,020 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 8 predicate places. [2024-10-11 19:31:55,020 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 48 transitions, 180 flow [2024-10-11 19:31:55,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:31:55,021 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:31:55,021 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:31:55,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 19:31:55,022 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:31:55,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:31:55,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1286337950, now seen corresponding path program 1 times [2024-10-11 19:31:55,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:31:55,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946359049] [2024-10-11 19:31:55,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:31:55,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:31:55,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:31:55,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:31:55,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:31:55,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946359049] [2024-10-11 19:31:55,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946359049] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:31:55,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:31:55,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:31:55,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910470721] [2024-10-11 19:31:55,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:31:55,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:31:55,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:31:55,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:31:55,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:31:55,211 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 54 [2024-10-11 19:31:55,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 48 transitions, 180 flow. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:31:55,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:31:55,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 54 [2024-10-11 19:31:55,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:31:58,170 INFO L124 PetriNetUnfolderBase]: 18071/26835 cut-off events. [2024-10-11 19:31:58,171 INFO L125 PetriNetUnfolderBase]: For 29481/29532 co-relation queries the response was YES. [2024-10-11 19:31:58,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73658 conditions, 26835 events. 18071/26835 cut-off events. For 29481/29532 co-relation queries the response was YES. Maximal size of possible extension queue 1138. Compared 187768 event pairs, 5479 based on Foata normal form. 649/27466 useless extension candidates. Maximal degree in co-relation 73640. Up to 13648 conditions per place. [2024-10-11 19:31:58,330 INFO L140 encePairwiseOnDemand]: 44/54 looper letters, 63 selfloop transitions, 11 changer transitions 74/161 dead transitions. [2024-10-11 19:31:58,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 161 transitions, 892 flow [2024-10-11 19:31:58,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:31:58,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 19:31:58,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 327 transitions. [2024-10-11 19:31:58,333 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6055555555555555 [2024-10-11 19:31:58,333 INFO L175 Difference]: Start difference. First operand has 69 places, 48 transitions, 180 flow. Second operand 10 states and 327 transitions. [2024-10-11 19:31:58,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 161 transitions, 892 flow [2024-10-11 19:31:58,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 161 transitions, 850 flow, removed 16 selfloop flow, removed 8 redundant places. [2024-10-11 19:31:58,795 INFO L231 Difference]: Finished difference. Result has 74 places, 53 transitions, 250 flow [2024-10-11 19:31:58,796 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=250, PETRI_PLACES=74, PETRI_TRANSITIONS=53} [2024-10-11 19:31:58,797 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 13 predicate places. [2024-10-11 19:31:58,797 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 53 transitions, 250 flow [2024-10-11 19:31:58,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:31:58,797 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:31:58,797 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] [2024-10-11 19:31:58,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 19:31:58,797 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:31:58,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:31:58,798 INFO L85 PathProgramCache]: Analyzing trace with hash -155948677, now seen corresponding path program 1 times [2024-10-11 19:31:58,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:31:58,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270385098] [2024-10-11 19:31:58,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:31:58,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:31:58,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:31:58,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:31:58,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:31:58,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270385098] [2024-10-11 19:31:58,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270385098] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:31:58,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:31:58,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:31:58,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796542389] [2024-10-11 19:31:58,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:31:58,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:31:58,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:31:58,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:31:58,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:31:58,929 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-10-11 19:31:58,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 53 transitions, 250 flow. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:31:58,930 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:31:58,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-10-11 19:31:58,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:32:02,948 INFO L124 PetriNetUnfolderBase]: 28937/43273 cut-off events. [2024-10-11 19:32:02,948 INFO L125 PetriNetUnfolderBase]: For 36212/40275 co-relation queries the response was YES. [2024-10-11 19:32:03,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106935 conditions, 43273 events. 28937/43273 cut-off events. For 36212/40275 co-relation queries the response was YES. Maximal size of possible extension queue 1628. Compared 315644 event pairs, 5062 based on Foata normal form. 1588/43678 useless extension candidates. Maximal degree in co-relation 106915. Up to 23158 conditions per place. [2024-10-11 19:32:03,319 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 57 selfloop transitions, 6 changer transitions 0/87 dead transitions. [2024-10-11 19:32:03,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 87 transitions, 472 flow [2024-10-11 19:32:03,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:32:03,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 19:32:03,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 142 transitions. [2024-10-11 19:32:03,321 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6574074074074074 [2024-10-11 19:32:03,321 INFO L175 Difference]: Start difference. First operand has 74 places, 53 transitions, 250 flow. Second operand 4 states and 142 transitions. [2024-10-11 19:32:03,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 87 transitions, 472 flow [2024-10-11 19:32:03,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 87 transitions, 456 flow, removed 8 selfloop flow, removed 4 redundant places. [2024-10-11 19:32:03,735 INFO L231 Difference]: Finished difference. Result has 69 places, 58 transitions, 280 flow [2024-10-11 19:32:03,735 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=280, PETRI_PLACES=69, PETRI_TRANSITIONS=58} [2024-10-11 19:32:03,736 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 8 predicate places. [2024-10-11 19:32:03,736 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 58 transitions, 280 flow [2024-10-11 19:32:03,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:32:03,737 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:32:03,737 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:32:03,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 19:32:03,737 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:32:03,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:32:03,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1480653043, now seen corresponding path program 1 times [2024-10-11 19:32:03,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:32:03,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25029633] [2024-10-11 19:32:03,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:32:03,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:32:03,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:32:03,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:32:03,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:32:03,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25029633] [2024-10-11 19:32:03,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25029633] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:32:03,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:32:03,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:32:03,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704327673] [2024-10-11 19:32:03,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:32:03,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:32:03,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:32:03,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:32:03,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:32:03,977 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 54 [2024-10-11 19:32:03,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 58 transitions, 280 flow. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:32:03,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:32:03,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 54 [2024-10-11 19:32:03,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:32:08,748 INFO L124 PetriNetUnfolderBase]: 33674/50159 cut-off events. [2024-10-11 19:32:08,748 INFO L125 PetriNetUnfolderBase]: For 47488/50196 co-relation queries the response was YES. [2024-10-11 19:32:09,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141014 conditions, 50159 events. 33674/50159 cut-off events. For 47488/50196 co-relation queries the response was YES. Maximal size of possible extension queue 2320. Compared 386682 event pairs, 13560 based on Foata normal form. 795/48248 useless extension candidates. Maximal degree in co-relation 140994. Up to 21391 conditions per place. [2024-10-11 19:32:09,381 INFO L140 encePairwiseOnDemand]: 46/54 looper letters, 102 selfloop transitions, 14 changer transitions 2/136 dead transitions. [2024-10-11 19:32:09,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 136 transitions, 813 flow [2024-10-11 19:32:09,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 19:32:09,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 19:32:09,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 258 transitions. [2024-10-11 19:32:09,383 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5972222222222222 [2024-10-11 19:32:09,384 INFO L175 Difference]: Start difference. First operand has 69 places, 58 transitions, 280 flow. Second operand 8 states and 258 transitions. [2024-10-11 19:32:09,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 136 transitions, 813 flow [2024-10-11 19:32:09,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 136 transitions, 807 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-10-11 19:32:09,455 INFO L231 Difference]: Finished difference. Result has 78 places, 63 transitions, 363 flow [2024-10-11 19:32:09,455 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=363, PETRI_PLACES=78, PETRI_TRANSITIONS=63} [2024-10-11 19:32:09,456 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 17 predicate places. [2024-10-11 19:32:09,456 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 63 transitions, 363 flow [2024-10-11 19:32:09,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:32:09,457 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:32:09,457 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:32:09,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 19:32:09,457 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:32:09,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:32:09,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1513694024, now seen corresponding path program 1 times [2024-10-11 19:32:09,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:32:09,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337895258] [2024-10-11 19:32:09,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:32:09,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:32:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:32:09,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:32:09,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:32:09,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337895258] [2024-10-11 19:32:09,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337895258] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:32:09,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:32:09,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:32:09,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054940454] [2024-10-11 19:32:09,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:32:09,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:32:09,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:32:09,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:32:09,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:32:09,591 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-10-11 19:32:09,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 63 transitions, 363 flow. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:32:09,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:32:09,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-10-11 19:32:09,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:32:14,201 INFO L124 PetriNetUnfolderBase]: 32724/48796 cut-off events. [2024-10-11 19:32:14,202 INFO L125 PetriNetUnfolderBase]: For 43037/46935 co-relation queries the response was YES. [2024-10-11 19:32:14,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131673 conditions, 48796 events. 32724/48796 cut-off events. For 43037/46935 co-relation queries the response was YES. Maximal size of possible extension queue 1872. Compared 357250 event pairs, 4420 based on Foata normal form. 2140/49476 useless extension candidates. Maximal degree in co-relation 131649. Up to 18553 conditions per place. [2024-10-11 19:32:14,514 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 74 selfloop transitions, 10 changer transitions 3/113 dead transitions. [2024-10-11 19:32:14,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 113 transitions, 696 flow [2024-10-11 19:32:14,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:32:14,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:32:14,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 182 transitions. [2024-10-11 19:32:14,515 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.674074074074074 [2024-10-11 19:32:14,515 INFO L175 Difference]: Start difference. First operand has 78 places, 63 transitions, 363 flow. Second operand 5 states and 182 transitions. [2024-10-11 19:32:14,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 113 transitions, 696 flow [2024-10-11 19:32:14,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 113 transitions, 657 flow, removed 7 selfloop flow, removed 2 redundant places. [2024-10-11 19:32:14,755 INFO L231 Difference]: Finished difference. Result has 82 places, 65 transitions, 369 flow [2024-10-11 19:32:14,755 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=369, PETRI_PLACES=82, PETRI_TRANSITIONS=65} [2024-10-11 19:32:14,755 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 21 predicate places. [2024-10-11 19:32:14,756 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 65 transitions, 369 flow [2024-10-11 19:32:14,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:32:14,756 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:32:14,756 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:32:14,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 19:32:14,756 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:32:14,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:32:14,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1772990638, now seen corresponding path program 1 times [2024-10-11 19:32:14,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:32:14,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418063849] [2024-10-11 19:32:14,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:32:14,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:32:14,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:32:14,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:32:14,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:32:14,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418063849] [2024-10-11 19:32:14,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418063849] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:32:14,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:32:14,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:32:14,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387756530] [2024-10-11 19:32:14,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:32:14,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:32:14,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:32:14,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:32:14,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:32:14,958 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-10-11 19:32:14,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 65 transitions, 369 flow. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:32:14,959 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:32:14,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-10-11 19:32:14,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:32:18,694 INFO L124 PetriNetUnfolderBase]: 24522/36299 cut-off events. [2024-10-11 19:32:18,694 INFO L125 PetriNetUnfolderBase]: For 49252/52161 co-relation queries the response was YES. [2024-10-11 19:32:18,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108273 conditions, 36299 events. 24522/36299 cut-off events. For 49252/52161 co-relation queries the response was YES. Maximal size of possible extension queue 1573. Compared 254625 event pairs, 2827 based on Foata normal form. 1311/36306 useless extension candidates. Maximal degree in co-relation 108247. Up to 12390 conditions per place. [2024-10-11 19:32:18,908 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 87 selfloop transitions, 14 changer transitions 2/129 dead transitions. [2024-10-11 19:32:18,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 129 transitions, 788 flow [2024-10-11 19:32:18,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:32:18,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 19:32:18,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 220 transitions. [2024-10-11 19:32:18,911 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6790123456790124 [2024-10-11 19:32:18,911 INFO L175 Difference]: Start difference. First operand has 82 places, 65 transitions, 369 flow. Second operand 6 states and 220 transitions. [2024-10-11 19:32:18,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 129 transitions, 788 flow [2024-10-11 19:32:18,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 129 transitions, 761 flow, removed 7 selfloop flow, removed 5 redundant places. [2024-10-11 19:32:18,948 INFO L231 Difference]: Finished difference. Result has 82 places, 70 transitions, 428 flow [2024-10-11 19:32:18,948 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=428, PETRI_PLACES=82, PETRI_TRANSITIONS=70} [2024-10-11 19:32:18,950 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 21 predicate places. [2024-10-11 19:32:18,950 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 70 transitions, 428 flow [2024-10-11 19:32:18,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:32:18,951 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:32:18,951 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:32:18,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 19:32:18,951 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:32:18,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:32:18,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1168565955, now seen corresponding path program 1 times [2024-10-11 19:32:18,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:32:18,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057837572] [2024-10-11 19:32:18,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:32:18,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:32:18,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:32:19,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:32:19,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:32:19,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057837572] [2024-10-11 19:32:19,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057837572] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:32:19,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:32:19,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 19:32:19,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679122383] [2024-10-11 19:32:19,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:32:19,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 19:32:19,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:32:19,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 19:32:19,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-11 19:32:19,853 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 54 [2024-10-11 19:32:19,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 70 transitions, 428 flow. Second operand has 9 states, 9 states have (on average 25.11111111111111) internal successors, (226), 9 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:32:19,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:32:19,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 54 [2024-10-11 19:32:19,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand