./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/mix026.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/mix026.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 a107688f8a9743f96e4ba7fbbac745d7f444b48f461db6b6c74848593b202e05 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:32:39,287 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:32:39,332 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 19:32:39,336 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:32:39,336 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:32:39,366 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:32:39,366 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:32:39,366 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:32:39,367 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:32:39,367 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:32:39,368 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:32:39,368 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:32:39,368 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:32:39,369 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:32:39,369 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:32:39,369 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:32:39,370 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:32:39,370 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:32:39,370 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:32:39,370 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:32:39,371 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:32:39,373 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:32:39,374 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:32:39,374 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:32:39,374 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:32:39,374 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:32:39,374 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:32:39,375 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:32:39,375 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:32:39,375 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:32:39,375 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:32:39,376 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:32:39,376 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:32:39,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:32:39,376 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:32:39,376 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:32:39,377 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 19:32:39,377 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 19:32:39,377 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:32:39,377 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:32:39,377 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:32:39,378 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:32:39,378 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a107688f8a9743f96e4ba7fbbac745d7f444b48f461db6b6c74848593b202e05 [2024-10-11 19:32:39,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:32:39,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:32:39,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:32:39,659 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:32:39,659 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:32:39,661 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix026.oepc.i [2024-10-11 19:32:41,099 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:32:41,335 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:32:41,335 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix026.oepc.i [2024-10-11 19:32:41,360 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/6f8962332/475a92bb587142f78041b3abcd45e94c/FLAG6b61c7881 [2024-10-11 19:32:41,389 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/6f8962332/475a92bb587142f78041b3abcd45e94c [2024-10-11 19:32:41,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:32:41,397 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:32:41,399 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:32:41,399 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:32:41,419 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:32:41,421 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:32:41" (1/1) ... [2024-10-11 19:32:41,422 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aaabee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:32:41, skipping insertion in model container [2024-10-11 19:32:41,422 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:32:41" (1/1) ... [2024-10-11 19:32:41,475 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:32:41,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:32:41,794 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:32:41,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:32:41,888 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:32:41,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:32:41 WrapperNode [2024-10-11 19:32:41,888 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:32:41,889 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:32:41,889 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:32:41,890 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:32:41,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:32:41" (1/1) ... [2024-10-11 19:32:41,913 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:32:41" (1/1) ... [2024-10-11 19:32:41,944 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 132 [2024-10-11 19:32:41,945 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:32:41,945 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:32:41,945 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:32:41,945 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:32:41,954 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:32:41" (1/1) ... [2024-10-11 19:32:41,958 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:32:41" (1/1) ... [2024-10-11 19:32:41,962 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:32:41" (1/1) ... [2024-10-11 19:32:41,980 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 19:32:41,980 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:32:41" (1/1) ... [2024-10-11 19:32:41,981 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:32:41" (1/1) ... [2024-10-11 19:32:41,986 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:32:41" (1/1) ... [2024-10-11 19:32:41,988 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:32:41" (1/1) ... [2024-10-11 19:32:41,989 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:32:41" (1/1) ... [2024-10-11 19:32:41,990 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:32:41" (1/1) ... [2024-10-11 19:32:41,993 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:32:41,993 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:32:41,993 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:32:41,993 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:32:41,997 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:32:41" (1/1) ... [2024-10-11 19:32:42,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:32:42,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:32:42,044 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 19:32:42,051 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 19:32:42,094 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 19:32:42,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:32:42,095 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-11 19:32:42,095 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-11 19:32:42,096 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-11 19:32:42,096 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-11 19:32:42,096 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-11 19:32:42,096 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-11 19:32:42,096 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-11 19:32:42,096 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-11 19:32:42,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 19:32:42,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 19:32:42,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:32:42,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:32:42,099 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 19:32:42,299 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:32:42,301 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:32:42,618 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 19:32:42,618 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:32:42,801 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:32:42,801 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 19:32:42,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:32:42 BoogieIcfgContainer [2024-10-11 19:32:42,802 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:32:42,803 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:32:42,803 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:32:42,807 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:32:42,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:32:41" (1/3) ... [2024-10-11 19:32:42,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ba33e71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:32:42, skipping insertion in model container [2024-10-11 19:32:42,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:32:41" (2/3) ... [2024-10-11 19:32:42,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ba33e71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:32:42, skipping insertion in model container [2024-10-11 19:32:42,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:32:42" (3/3) ... [2024-10-11 19:32:42,810 INFO L112 eAbstractionObserver]: Analyzing ICFG mix026.oepc.i [2024-10-11 19:32:42,824 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:32:42,824 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-11 19:32:42,825 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 19:32:42,880 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 19:32:42,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 54 transitions, 124 flow [2024-10-11 19:32:42,944 INFO L124 PetriNetUnfolderBase]: 2/50 cut-off events. [2024-10-11 19:32:42,944 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:32:42,949 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 19:32:42,950 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 54 transitions, 124 flow [2024-10-11 19:32:42,954 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 50 transitions, 112 flow [2024-10-11 19:32:42,966 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:32:42,975 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;@61ac69a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:32:42,975 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-11 19:32:42,980 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 19:32:42,980 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-10-11 19:32:42,980 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:32:42,980 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:32:42,981 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-11 19:32:42,981 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 19:32:42,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:32:42,987 INFO L85 PathProgramCache]: Analyzing trace with hash 12922266, now seen corresponding path program 1 times [2024-10-11 19:32:42,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:32:42,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283223907] [2024-10-11 19:32:42,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:32:42,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:32:43,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:32:43,437 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 19:32:43,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:32:43,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283223907] [2024-10-11 19:32:43,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283223907] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:32:43,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:32:43,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:32:43,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159075990] [2024-10-11 19:32:43,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:32:43,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:32:43,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:32:43,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:32:43,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:32:43,480 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 54 [2024-10-11 19:32:43,482 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 19:32:43,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:32:43,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 54 [2024-10-11 19:32:43,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:32:44,263 INFO L124 PetriNetUnfolderBase]: 3311/5438 cut-off events. [2024-10-11 19:32:44,263 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-11 19:32:44,276 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 19:32:44,301 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 41 selfloop transitions, 2 changer transitions 2/66 dead transitions. [2024-10-11 19:32:44,301 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 66 transitions, 243 flow [2024-10-11 19:32:44,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:32:44,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:32:44,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 125 transitions. [2024-10-11 19:32:44,312 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7716049382716049 [2024-10-11 19:32:44,313 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 112 flow. Second operand 3 states and 125 transitions. [2024-10-11 19:32:44,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 66 transitions, 243 flow [2024-10-11 19:32:44,319 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 19:32:44,322 INFO L231 Difference]: Finished difference. Result has 57 places, 45 transitions, 102 flow [2024-10-11 19:32:44,325 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 19:32:44,328 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2024-10-11 19:32:44,329 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 45 transitions, 102 flow [2024-10-11 19:32:44,329 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 19:32:44,329 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:32:44,329 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 19:32:44,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 19:32:44,330 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 19:32:44,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:32:44,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1204687332, now seen corresponding path program 1 times [2024-10-11 19:32:44,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:32:44,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089881610] [2024-10-11 19:32:44,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:32:44,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:32:44,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:32:44,420 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 19:32:44,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:32:44,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089881610] [2024-10-11 19:32:44,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089881610] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:32:44,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:32:44,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:32:44,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759790683] [2024-10-11 19:32:44,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:32:44,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:32:44,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:32:44,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:32:44,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:32:44,423 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 54 [2024-10-11 19:32:44,423 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 19:32:44,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:32:44,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 54 [2024-10-11 19:32:44,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:32:44,999 INFO L124 PetriNetUnfolderBase]: 2903/4911 cut-off events. [2024-10-11 19:32:45,000 INFO L125 PetriNetUnfolderBase]: For 278/278 co-relation queries the response was YES. [2024-10-11 19:32:45,009 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 19:32:45,031 INFO L140 encePairwiseOnDemand]: 52/54 looper letters, 22 selfloop transitions, 1 changer transitions 1/44 dead transitions. [2024-10-11 19:32:45,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 44 transitions, 148 flow [2024-10-11 19:32:45,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:32:45,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:32:45,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2024-10-11 19:32:45,034 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5987654320987654 [2024-10-11 19:32:45,035 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 97 transitions. [2024-10-11 19:32:45,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 44 transitions, 148 flow [2024-10-11 19:32:45,035 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 19:32:45,036 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 96 flow [2024-10-11 19:32:45,037 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 19:32:45,038 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -6 predicate places. [2024-10-11 19:32:45,038 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 96 flow [2024-10-11 19:32:45,038 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 19:32:45,038 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:32:45,038 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 19:32:45,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 19:32:45,039 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 19:32:45,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:32:45,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1204688585, now seen corresponding path program 1 times [2024-10-11 19:32:45,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:32:45,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097396228] [2024-10-11 19:32:45,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:32:45,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:32:45,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:32:45,295 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 19:32:45,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:32:45,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097396228] [2024-10-11 19:32:45,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097396228] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:32:45,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:32:45,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:32:45,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692520759] [2024-10-11 19:32:45,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:32:45,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:32:45,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:32:45,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:32:45,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:32:45,316 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 54 [2024-10-11 19:32:45,316 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 19:32:45,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:32:45,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 54 [2024-10-11 19:32:45,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:32:49,325 INFO L124 PetriNetUnfolderBase]: 27273/39346 cut-off events. [2024-10-11 19:32:49,325 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:32:49,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76404 conditions, 39346 events. 27273/39346 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1822. Compared 283255 event pairs, 6785 based on Foata normal form. 0/38508 useless extension candidates. Maximal degree in co-relation 76398. Up to 15294 conditions per place. [2024-10-11 19:32:49,533 INFO L140 encePairwiseOnDemand]: 43/54 looper letters, 48 selfloop transitions, 7 changer transitions 96/164 dead transitions. [2024-10-11 19:32:49,533 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 164 transitions, 646 flow [2024-10-11 19:32:49,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 19:32:49,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 19:32:49,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 315 transitions. [2024-10-11 19:32:49,536 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6481481481481481 [2024-10-11 19:32:49,536 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 96 flow. Second operand 9 states and 315 transitions. [2024-10-11 19:32:49,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 164 transitions, 646 flow [2024-10-11 19:32:49,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 164 transitions, 645 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:32:49,543 INFO L231 Difference]: Finished difference. Result has 69 places, 48 transitions, 191 flow [2024-10-11 19:32:49,543 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 19:32:49,544 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 8 predicate places. [2024-10-11 19:32:49,544 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 48 transitions, 191 flow [2024-10-11 19:32:49,544 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 19:32:49,544 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:32:49,545 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 19:32:49,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 19:32:49,545 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 19:32:49,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:32:49,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1101697576, now seen corresponding path program 1 times [2024-10-11 19:32:49,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:32:49,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815126112] [2024-10-11 19:32:49,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:32:49,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:32:49,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:32:49,682 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 19:32:49,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:32:49,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815126112] [2024-10-11 19:32:49,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815126112] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:32:49,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:32:49,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:32:49,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837715255] [2024-10-11 19:32:49,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:32:49,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:32:49,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:32:49,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:32:49,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:32:49,691 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 54 [2024-10-11 19:32:49,692 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 19:32:49,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:32:49,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 54 [2024-10-11 19:32:49,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:32:52,673 INFO L124 PetriNetUnfolderBase]: 14615/22874 cut-off events. [2024-10-11 19:32:52,673 INFO L125 PetriNetUnfolderBase]: For 19046/20554 co-relation queries the response was YES. [2024-10-11 19:32:52,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59444 conditions, 22874 events. 14615/22874 cut-off events. For 19046/20554 co-relation queries the response was YES. Maximal size of possible extension queue 1191. Compared 177068 event pairs, 3693 based on Foata normal form. 801/22809 useless extension candidates. Maximal degree in co-relation 59429. Up to 12061 conditions per place. [2024-10-11 19:32:53,004 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 34 selfloop transitions, 3 changer transitions 43/101 dead transitions. [2024-10-11 19:32:53,005 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 101 transitions, 515 flow [2024-10-11 19:32:53,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:32:53,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:32:53,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 230 transitions. [2024-10-11 19:32:53,007 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6084656084656085 [2024-10-11 19:32:53,007 INFO L175 Difference]: Start difference. First operand has 69 places, 48 transitions, 191 flow. Second operand 7 states and 230 transitions. [2024-10-11 19:32:53,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 101 transitions, 515 flow [2024-10-11 19:32:53,128 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 19:32:53,130 INFO L231 Difference]: Finished difference. Result has 69 places, 48 transitions, 180 flow [2024-10-11 19:32:53,130 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 19:32:53,132 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 8 predicate places. [2024-10-11 19:32:53,132 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 48 transitions, 180 flow [2024-10-11 19:32:53,132 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 19:32:53,133 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:32:53,133 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 19:32:53,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 19:32:53,133 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 19:32:53,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:32:53,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1286337950, now seen corresponding path program 1 times [2024-10-11 19:32:53,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:32:53,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125159751] [2024-10-11 19:32:53,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:32:53,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:32:53,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:32:53,258 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 19:32:53,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:32:53,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125159751] [2024-10-11 19:32:53,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125159751] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:32:53,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:32:53,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:32:53,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785142479] [2024-10-11 19:32:53,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:32:53,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:32:53,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:32:53,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:32:53,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:32:53,270 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-10-11 19:32:53,270 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 48 transitions, 180 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 19:32:53,270 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:32:53,270 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-10-11 19:32:53,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:32:58,015 INFO L124 PetriNetUnfolderBase]: 28197/41941 cut-off events. [2024-10-11 19:32:58,016 INFO L125 PetriNetUnfolderBase]: For 22644/31114 co-relation queries the response was YES. [2024-10-11 19:32:58,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96896 conditions, 41941 events. 28197/41941 cut-off events. For 22644/31114 co-relation queries the response was YES. Maximal size of possible extension queue 1743. Compared 305786 event pairs, 4604 based on Foata normal form. 1762/42456 useless extension candidates. Maximal degree in co-relation 96878. Up to 22862 conditions per place. [2024-10-11 19:32:58,414 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 57 selfloop transitions, 6 changer transitions 0/82 dead transitions. [2024-10-11 19:32:58,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 82 transitions, 396 flow [2024-10-11 19:32:58,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:32:58,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 19:32:58,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 142 transitions. [2024-10-11 19:32:58,416 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6574074074074074 [2024-10-11 19:32:58,417 INFO L175 Difference]: Start difference. First operand has 69 places, 48 transitions, 180 flow. Second operand 4 states and 142 transitions. [2024-10-11 19:32:58,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 82 transitions, 396 flow [2024-10-11 19:32:58,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 82 transitions, 378 flow, removed 6 selfloop flow, removed 8 redundant places. [2024-10-11 19:32:58,870 INFO L231 Difference]: Finished difference. Result has 62 places, 53 transitions, 208 flow [2024-10-11 19:32:58,870 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=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=208, PETRI_PLACES=62, PETRI_TRANSITIONS=53} [2024-10-11 19:32:58,871 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 1 predicate places. [2024-10-11 19:32:58,871 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 53 transitions, 208 flow [2024-10-11 19:32:58,871 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 19:32:58,871 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:32:58,872 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:32:58,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 19:32:58,872 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 19:32:58,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:32:58,872 INFO L85 PathProgramCache]: Analyzing trace with hash -2082442104, now seen corresponding path program 1 times [2024-10-11 19:32:58,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:32:58,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086281219] [2024-10-11 19:32:58,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:32:58,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:32:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:32:59,075 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 19:32:59,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:32:59,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086281219] [2024-10-11 19:32:59,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086281219] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:32:59,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:32:59,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:32:59,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835234977] [2024-10-11 19:32:59,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:32:59,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:32:59,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:32:59,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:32:59,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:32:59,085 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-10-11 19:32:59,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 53 transitions, 208 flow. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 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 19:32:59,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:32:59,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-10-11 19:32:59,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:33:02,714 INFO L124 PetriNetUnfolderBase]: 22700/33807 cut-off events. [2024-10-11 19:33:02,714 INFO L125 PetriNetUnfolderBase]: For 19431/27059 co-relation queries the response was YES. [2024-10-11 19:33:02,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86362 conditions, 33807 events. 22700/33807 cut-off events. For 19431/27059 co-relation queries the response was YES. Maximal size of possible extension queue 1398. Compared 237245 event pairs, 2661 based on Foata normal form. 1486/34271 useless extension candidates. Maximal degree in co-relation 86348. Up to 12353 conditions per place. [2024-10-11 19:33:02,931 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 74 selfloop transitions, 10 changer transitions 0/103 dead transitions. [2024-10-11 19:33:02,932 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 103 transitions, 529 flow [2024-10-11 19:33:02,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:33:02,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:33:02,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 182 transitions. [2024-10-11 19:33:02,933 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.674074074074074 [2024-10-11 19:33:02,933 INFO L175 Difference]: Start difference. First operand has 62 places, 53 transitions, 208 flow. Second operand 5 states and 182 transitions. [2024-10-11 19:33:02,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 103 transitions, 529 flow [2024-10-11 19:33:02,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 103 transitions, 526 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:33:02,936 INFO L231 Difference]: Finished difference. Result has 67 places, 58 transitions, 273 flow [2024-10-11 19:33:02,936 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=273, PETRI_PLACES=67, PETRI_TRANSITIONS=58} [2024-10-11 19:33:02,937 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 6 predicate places. [2024-10-11 19:33:02,937 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 58 transitions, 273 flow [2024-10-11 19:33:02,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 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 19:33:02,937 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:33:02,938 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 19:33:02,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 19:33:02,938 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 19:33:02,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:33:02,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1630826581, now seen corresponding path program 1 times [2024-10-11 19:33:02,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:33:02,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362951403] [2024-10-11 19:33:02,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:33:02,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:33:02,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:33:03,716 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 19:33:03,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:33:03,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362951403] [2024-10-11 19:33:03,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362951403] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:33:03,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:33:03,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 19:33:03,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514760226] [2024-10-11 19:33:03,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:33:03,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:33:03,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:33:03,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:33:03,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:33:03,726 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 54 [2024-10-11 19:33:03,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 58 transitions, 273 flow. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 7 states have internal predecessors, (179), 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 19:33:03,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:33:03,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 54 [2024-10-11 19:33:03,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:33:07,935 INFO L124 PetriNetUnfolderBase]: 23060/38445 cut-off events. [2024-10-11 19:33:07,936 INFO L125 PetriNetUnfolderBase]: For 29532/40392 co-relation queries the response was YES. [2024-10-11 19:33:08,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100265 conditions, 38445 events. 23060/38445 cut-off events. For 29532/40392 co-relation queries the response was YES. Maximal size of possible extension queue 2217. Compared 344213 event pairs, 8546 based on Foata normal form. 628/35912 useless extension candidates. Maximal degree in co-relation 100248. Up to 17266 conditions per place. [2024-10-11 19:33:08,278 INFO L140 encePairwiseOnDemand]: 44/54 looper letters, 86 selfloop transitions, 20 changer transitions 10/149 dead transitions. [2024-10-11 19:33:08,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 149 transitions, 783 flow [2024-10-11 19:33:08,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:33:08,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 19:33:08,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 345 transitions. [2024-10-11 19:33:08,281 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2024-10-11 19:33:08,281 INFO L175 Difference]: Start difference. First operand has 67 places, 58 transitions, 273 flow. Second operand 10 states and 345 transitions. [2024-10-11 19:33:08,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 149 transitions, 783 flow [2024-10-11 19:33:08,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 149 transitions, 768 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-10-11 19:33:08,291 INFO L231 Difference]: Finished difference. Result has 82 places, 78 transitions, 433 flow [2024-10-11 19:33:08,291 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=433, PETRI_PLACES=82, PETRI_TRANSITIONS=78} [2024-10-11 19:33:08,291 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 21 predicate places. [2024-10-11 19:33:08,292 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 78 transitions, 433 flow [2024-10-11 19:33:08,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 7 states have internal predecessors, (179), 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 19:33:08,292 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:33:08,292 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 19:33:08,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 19:33:08,292 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 19:33:08,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:33:08,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1474661715, now seen corresponding path program 2 times [2024-10-11 19:33:08,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:33:08,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333760898] [2024-10-11 19:33:08,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:33:08,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:33:08,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:33:08,568 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 19:33:08,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:33:08,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333760898] [2024-10-11 19:33:08,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333760898] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:33:08,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:33:08,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:33:08,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864088523] [2024-10-11 19:33:08,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:33:08,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:33:08,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:33:08,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:33:08,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:33:08,577 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-10-11 19:33:08,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 78 transitions, 433 flow. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 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 19:33:08,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:33:08,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-10-11 19:33:08,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:33:13,325 INFO L124 PetriNetUnfolderBase]: 32128/47080 cut-off events. [2024-10-11 19:33:13,326 INFO L125 PetriNetUnfolderBase]: For 114807/127189 co-relation queries the response was YES. [2024-10-11 19:33:13,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165560 conditions, 47080 events. 32128/47080 cut-off events. For 114807/127189 co-relation queries the response was YES. Maximal size of possible extension queue 2045. Compared 335572 event pairs, 2434 based on Foata normal form. 1768/47300 useless extension candidates. Maximal degree in co-relation 165536. Up to 16100 conditions per place. [2024-10-11 19:33:13,717 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 126 selfloop transitions, 14 changer transitions 23/182 dead transitions. [2024-10-11 19:33:13,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 182 transitions, 1351 flow [2024-10-11 19:33:13,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:33:13,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 19:33:13,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 220 transitions. [2024-10-11 19:33:13,718 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6790123456790124 [2024-10-11 19:33:13,718 INFO L175 Difference]: Start difference. First operand has 82 places, 78 transitions, 433 flow. Second operand 6 states and 220 transitions. [2024-10-11 19:33:13,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 182 transitions, 1351 flow [2024-10-11 19:33:13,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 182 transitions, 1349 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-10-11 19:33:13,820 INFO L231 Difference]: Finished difference. Result has 87 places, 74 transitions, 452 flow [2024-10-11 19:33:13,820 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=452, PETRI_PLACES=87, PETRI_TRANSITIONS=74} [2024-10-11 19:33:13,821 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 26 predicate places. [2024-10-11 19:33:13,821 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 74 transitions, 452 flow [2024-10-11 19:33:13,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 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 19:33:13,821 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:33:13,822 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 19:33:13,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 19:33:13,822 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 19:33:13,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:33:13,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1168565955, now seen corresponding path program 1 times [2024-10-11 19:33:13,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:33:13,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390395740] [2024-10-11 19:33:13,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:33:13,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:33:13,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:33:15,405 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 19:33:15,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:33:15,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390395740] [2024-10-11 19:33:15,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390395740] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:33:15,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:33:15,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 19:33:15,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277023959] [2024-10-11 19:33:15,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:33:15,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 19:33:15,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:33:15,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 19:33:15,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 19:33:15,420 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 54 [2024-10-11 19:33:15,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 74 transitions, 452 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 19:33:15,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:33:15,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 54 [2024-10-11 19:33:15,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:33:19,623 INFO L124 PetriNetUnfolderBase]: 19785/34278 cut-off events. [2024-10-11 19:33:19,623 INFO L125 PetriNetUnfolderBase]: For 84229/98550 co-relation queries the response was YES. [2024-10-11 19:33:19,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116063 conditions, 34278 events. 19785/34278 cut-off events. For 84229/98550 co-relation queries the response was YES. Maximal size of possible extension queue 2104. Compared 313310 event pairs, 6710 based on Foata normal form. 1396/32267 useless extension candidates. Maximal degree in co-relation 116035. Up to 9310 conditions per place. [2024-10-11 19:33:19,970 INFO L140 encePairwiseOnDemand]: 44/54 looper letters, 89 selfloop transitions, 16 changer transitions 16/159 dead transitions. [2024-10-11 19:33:19,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 159 transitions, 1184 flow [2024-10-11 19:33:19,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 19:33:19,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 19:33:19,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 292 transitions. [2024-10-11 19:33:19,973 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6759259259259259 [2024-10-11 19:33:19,973 INFO L175 Difference]: Start difference. First operand has 87 places, 74 transitions, 452 flow. Second operand 8 states and 292 transitions. [2024-10-11 19:33:19,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 159 transitions, 1184 flow [2024-10-11 19:33:20,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 159 transitions, 1121 flow, removed 24 selfloop flow, removed 6 redundant places. [2024-10-11 19:33:20,489 INFO L231 Difference]: Finished difference. Result has 89 places, 82 transitions, 548 flow [2024-10-11 19:33:20,489 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=548, PETRI_PLACES=89, PETRI_TRANSITIONS=82} [2024-10-11 19:33:20,490 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 28 predicate places. [2024-10-11 19:33:20,490 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 82 transitions, 548 flow [2024-10-11 19:33:20,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has 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 19:33:20,490 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:33:20,490 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 19:33:20,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 19:33:20,491 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 19:33:20,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:33:20,491 INFO L85 PathProgramCache]: Analyzing trace with hash -67854475, now seen corresponding path program 2 times [2024-10-11 19:33:20,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:33:20,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211773394] [2024-10-11 19:33:20,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:33:20,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:33:20,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:33:20,702 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 19:33:20,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:33:20,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211773394] [2024-10-11 19:33:20,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211773394] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:33:20,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:33:20,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:33:20,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155427410] [2024-10-11 19:33:20,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:33:20,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:33:20,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:33:20,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:33:20,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:33:20,714 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-10-11 19:33:20,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 82 transitions, 548 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 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 19:33:20,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:33:20,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-10-11 19:33:20,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand