./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix005.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/mix005.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0c4e58b38f229da1b25a4c7b1c830f1f36e4dc5c1e18903f04a209f4b4cfa3c5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 09:24:05,562 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 09:24:05,640 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-19 09:24:05,643 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 09:24:05,644 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 09:24:05,675 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 09:24:05,676 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 09:24:05,676 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 09:24:05,677 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 09:24:05,678 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 09:24:05,678 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 09:24:05,679 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 09:24:05,679 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 09:24:05,680 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 09:24:05,681 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 09:24:05,682 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 09:24:05,682 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 09:24:05,682 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 09:24:05,682 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 09:24:05,682 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 09:24:05,683 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-19 09:24:05,683 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-19 09:24:05,686 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-19 09:24:05,687 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 09:24:05,687 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 09:24:05,687 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 09:24:05,687 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 09:24:05,688 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 09:24:05,688 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 09:24:05,688 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 09:24:05,688 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 09:24:05,688 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 09:24:05,689 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 09:24:05,689 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:24:05,689 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 09:24:05,689 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 09:24:05,690 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 09:24:05,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 09:24:05,690 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 09:24:05,690 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 09:24:05,691 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 09:24:05,691 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 09:24:05,692 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c4e58b38f229da1b25a4c7b1c830f1f36e4dc5c1e18903f04a209f4b4cfa3c5 [2024-11-19 09:24:05,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 09:24:05,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 09:24:05,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 09:24:05,962 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 09:24:05,962 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 09:24:05,963 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix005.opt.i [2024-11-19 09:24:07,249 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 09:24:07,498 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 09:24:07,498 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix005.opt.i [2024-11-19 09:24:07,519 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfa4fd11b/7c6246767e3a4ae696d816c6bba30828/FLAG8873ea254 [2024-11-19 09:24:07,531 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfa4fd11b/7c6246767e3a4ae696d816c6bba30828 [2024-11-19 09:24:07,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 09:24:07,535 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 09:24:07,537 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 09:24:07,537 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 09:24:07,541 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 09:24:07,542 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:24:07" (1/1) ... [2024-11-19 09:24:07,543 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73db1fd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:24:07, skipping insertion in model container [2024-11-19 09:24:07,543 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:24:07" (1/1) ... [2024-11-19 09:24:07,583 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 09:24:07,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:24:07,940 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 09:24:08,007 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:24:08,042 INFO L204 MainTranslator]: Completed translation [2024-11-19 09:24:08,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:24:08 WrapperNode [2024-11-19 09:24:08,043 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 09:24:08,044 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 09:24:08,044 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 09:24:08,044 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 09:24:08,050 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:24:08" (1/1) ... [2024-11-19 09:24:08,066 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:24:08" (1/1) ... [2024-11-19 09:24:08,094 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 155 [2024-11-19 09:24:08,095 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 09:24:08,095 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 09:24:08,095 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 09:24:08,096 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 09:24:08,105 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:24:08" (1/1) ... [2024-11-19 09:24:08,105 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:24:08" (1/1) ... [2024-11-19 09:24:08,110 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:24:08" (1/1) ... [2024-11-19 09:24:08,129 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-19 09:24:08,130 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:24:08" (1/1) ... [2024-11-19 09:24:08,130 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:24:08" (1/1) ... [2024-11-19 09:24:08,136 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:24:08" (1/1) ... [2024-11-19 09:24:08,138 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:24:08" (1/1) ... [2024-11-19 09:24:08,139 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:24:08" (1/1) ... [2024-11-19 09:24:08,141 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:24:08" (1/1) ... [2024-11-19 09:24:08,144 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 09:24:08,149 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 09:24:08,149 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 09:24:08,149 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 09:24:08,150 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:24:08" (1/1) ... [2024-11-19 09:24:08,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:24:08,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:24:08,187 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 09:24:08,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 09:24:08,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 09:24:08,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 09:24:08,234 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-19 09:24:08,234 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-19 09:24:08,234 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-19 09:24:08,234 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-19 09:24:08,234 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-19 09:24:08,234 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-19 09:24:08,234 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-19 09:24:08,235 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-19 09:24:08,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 09:24:08,236 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 09:24:08,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 09:24:08,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 09:24:08,238 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 09:24:08,356 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 09:24:08,358 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 09:24:08,633 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 09:24:08,633 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 09:24:08,846 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 09:24:08,847 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 09:24:08,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:24:08 BoogieIcfgContainer [2024-11-19 09:24:08,847 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 09:24:08,854 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 09:24:08,856 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 09:24:08,861 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 09:24:08,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:24:07" (1/3) ... [2024-11-19 09:24:08,862 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45579b2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:24:08, skipping insertion in model container [2024-11-19 09:24:08,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:24:08" (2/3) ... [2024-11-19 09:24:08,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45579b2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:24:08, skipping insertion in model container [2024-11-19 09:24:08,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:24:08" (3/3) ... [2024-11-19 09:24:08,865 INFO L112 eAbstractionObserver]: Analyzing ICFG mix005.opt.i [2024-11-19 09:24:08,878 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 09:24:08,878 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-19 09:24:08,879 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 09:24:08,925 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 09:24:08,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2024-11-19 09:24:08,986 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-11-19 09:24:08,986 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:24:08,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 51 events. 2/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 103 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2024-11-19 09:24:08,991 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2024-11-19 09:24:08,994 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2024-11-19 09:24:09,000 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 09:24:09,006 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;@c9ace2e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 09:24:09,006 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-19 09:24:09,013 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 09:24:09,013 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-11-19 09:24:09,013 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:24:09,014 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:24:09,015 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:24:09,015 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-19 09:24:09,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:24:09,020 INFO L85 PathProgramCache]: Analyzing trace with hash 448221375, now seen corresponding path program 1 times [2024-11-19 09:24:09,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:24:09,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634975460] [2024-11-19 09:24:09,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:24:09,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:24:09,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:24:09,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:24:09,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:24:09,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634975460] [2024-11-19 09:24:09,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634975460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:24:09,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:24:09,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 09:24:09,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237234709] [2024-11-19 09:24:09,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:24:09,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:24:09,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:24:09,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:24:09,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:24:09,485 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 55 [2024-11-19 09:24:09,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:24:09,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:24:09,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 55 [2024-11-19 09:24:09,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:24:09,969 INFO L124 PetriNetUnfolderBase]: 1175/2003 cut-off events. [2024-11-19 09:24:09,969 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:24:09,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3739 conditions, 2003 events. 1175/2003 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 14325 event pairs, 199 based on Foata normal form. 120/2081 useless extension candidates. Maximal degree in co-relation 3727. Up to 1361 conditions per place. [2024-11-19 09:24:09,989 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 30 selfloop transitions, 2 changer transitions 2/58 dead transitions. [2024-11-19 09:24:09,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 58 transitions, 196 flow [2024-11-19 09:24:09,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:24:09,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:24:09,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 123 transitions. [2024-11-19 09:24:09,999 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7454545454545455 [2024-11-19 09:24:10,001 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 123 transitions. [2024-11-19 09:24:10,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 58 transitions, 196 flow [2024-11-19 09:24:10,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 58 transitions, 192 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 09:24:10,009 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-11-19 09:24:10,011 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2024-11-19 09:24:10,015 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2024-11-19 09:24:10,016 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-11-19 09:24:10,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:24:10,016 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:24:10,016 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:24:10,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 09:24:10,017 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-19 09:24:10,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:24:10,019 INFO L85 PathProgramCache]: Analyzing trace with hash -984061845, now seen corresponding path program 1 times [2024-11-19 09:24:10,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:24:10,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004387356] [2024-11-19 09:24:10,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:24:10,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:24:10,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:24:10,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:24:10,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:24:10,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004387356] [2024-11-19 09:24:10,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004387356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:24:10,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:24:10,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 09:24:10,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140757936] [2024-11-19 09:24:10,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:24:10,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:24:10,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:24:10,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:24:10,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:24:10,107 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 55 [2024-11-19 09:24:10,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:24:10,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:24:10,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 55 [2024-11-19 09:24:10,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:24:10,380 INFO L124 PetriNetUnfolderBase]: 1027/1867 cut-off events. [2024-11-19 09:24:10,380 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2024-11-19 09:24:10,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3477 conditions, 1867 events. 1027/1867 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 13974 event pairs, 1027 based on Foata normal form. 60/1861 useless extension candidates. Maximal degree in co-relation 3467. Up to 1484 conditions per place. [2024-11-19 09:24:10,391 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 20 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-11-19 09:24:10,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 146 flow [2024-11-19 09:24:10,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:24:10,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:24:10,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2024-11-19 09:24:10,395 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6303030303030303 [2024-11-19 09:24:10,395 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 104 transitions. [2024-11-19 09:24:10,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 146 flow [2024-11-19 09:24:10,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 142 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 09:24:10,398 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-11-19 09:24:10,399 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2024-11-19 09:24:10,399 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-11-19 09:24:10,400 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-11-19 09:24:10,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:24:10,400 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:24:10,400 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:24:10,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 09:24:10,401 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-19 09:24:10,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:24:10,402 INFO L85 PathProgramCache]: Analyzing trace with hash -984060592, now seen corresponding path program 1 times [2024-11-19 09:24:10,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:24:10,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049747515] [2024-11-19 09:24:10,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:24:10,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:24:10,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:24:10,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:24:10,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:24:10,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049747515] [2024-11-19 09:24:10,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049747515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:24:10,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:24:10,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 09:24:10,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143232519] [2024-11-19 09:24:10,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:24:10,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 09:24:10,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:24:10,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 09:24:10,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 09:24:10,662 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-19 09:24:10,663 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:24:10,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:24:10,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-19 09:24:10,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:24:13,097 INFO L124 PetriNetUnfolderBase]: 14679/22350 cut-off events. [2024-11-19 09:24:13,097 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:24:13,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42644 conditions, 22350 events. 14679/22350 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1279. Compared 170422 event pairs, 3971 based on Foata normal form. 0/21666 useless extension candidates. Maximal degree in co-relation 42638. Up to 9077 conditions per place. [2024-11-19 09:24:13,231 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 41 selfloop transitions, 8 changer transitions 84/149 dead transitions. [2024-11-19 09:24:13,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 149 transitions, 578 flow [2024-11-19 09:24:13,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 09:24:13,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 09:24:13,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 324 transitions. [2024-11-19 09:24:13,234 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6545454545454545 [2024-11-19 09:24:13,234 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 9 states and 324 transitions. [2024-11-19 09:24:13,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 149 transitions, 578 flow [2024-11-19 09:24:13,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 149 transitions, 577 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 09:24:13,238 INFO L231 Difference]: Finished difference. Result has 70 places, 50 transitions, 207 flow [2024-11-19 09:24:13,238 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=207, PETRI_PLACES=70, PETRI_TRANSITIONS=50} [2024-11-19 09:24:13,239 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-11-19 09:24:13,239 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 50 transitions, 207 flow [2024-11-19 09:24:13,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:24:13,239 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:24:13,239 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:24:13,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 09:24:13,240 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-19 09:24:13,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:24:13,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1159140751, now seen corresponding path program 1 times [2024-11-19 09:24:13,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:24:13,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440598547] [2024-11-19 09:24:13,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:24:13,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:24:13,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:24:13,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:24:13,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:24:13,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440598547] [2024-11-19 09:24:13,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440598547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:24:13,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:24:13,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 09:24:13,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518170266] [2024-11-19 09:24:13,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:24:13,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 09:24:13,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:24:13,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 09:24:13,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 09:24:13,426 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-19 09:24:13,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 50 transitions, 207 flow. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:24:13,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:24:13,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-19 09:24:13,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:24:15,369 INFO L124 PetriNetUnfolderBase]: 10337/16691 cut-off events. [2024-11-19 09:24:15,370 INFO L125 PetriNetUnfolderBase]: For 25119/25155 co-relation queries the response was YES. [2024-11-19 09:24:15,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51286 conditions, 16691 events. 10337/16691 cut-off events. For 25119/25155 co-relation queries the response was YES. Maximal size of possible extension queue 914. Compared 129960 event pairs, 1897 based on Foata normal form. 450/17034 useless extension candidates. Maximal degree in co-relation 51271. Up to 6057 conditions per place. [2024-11-19 09:24:15,488 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 50 selfloop transitions, 9 changer transitions 76/151 dead transitions. [2024-11-19 09:24:15,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 151 transitions, 1009 flow [2024-11-19 09:24:15,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 09:24:15,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 09:24:15,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 332 transitions. [2024-11-19 09:24:15,490 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6036363636363636 [2024-11-19 09:24:15,491 INFO L175 Difference]: Start difference. First operand has 70 places, 50 transitions, 207 flow. Second operand 10 states and 332 transitions. [2024-11-19 09:24:15,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 151 transitions, 1009 flow [2024-11-19 09:24:15,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 151 transitions, 859 flow, removed 38 selfloop flow, removed 4 redundant places. [2024-11-19 09:24:15,609 INFO L231 Difference]: Finished difference. Result has 77 places, 55 transitions, 273 flow [2024-11-19 09:24:15,609 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=273, PETRI_PLACES=77, PETRI_TRANSITIONS=55} [2024-11-19 09:24:15,611 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 15 predicate places. [2024-11-19 09:24:15,611 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 55 transitions, 273 flow [2024-11-19 09:24:15,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:24:15,612 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:24:15,613 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] [2024-11-19 09:24:15,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 09:24:15,613 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-19 09:24:15,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:24:15,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1190777921, now seen corresponding path program 1 times [2024-11-19 09:24:15,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:24:15,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346661639] [2024-11-19 09:24:15,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:24:15,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:24:15,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:24:15,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:24:15,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:24:15,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346661639] [2024-11-19 09:24:15,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346661639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:24:15,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:24:15,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 09:24:15,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216305081] [2024-11-19 09:24:15,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:24:15,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 09:24:15,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:24:15,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 09:24:15,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 09:24:15,842 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-11-19 09:24:15,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 55 transitions, 273 flow. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:24:15,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:24:15,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-11-19 09:24:15,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:24:17,476 INFO L124 PetriNetUnfolderBase]: 7680/13370 cut-off events. [2024-11-19 09:24:17,476 INFO L125 PetriNetUnfolderBase]: For 25286/25580 co-relation queries the response was YES. [2024-11-19 09:24:17,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40503 conditions, 13370 events. 7680/13370 cut-off events. For 25286/25580 co-relation queries the response was YES. Maximal size of possible extension queue 780. Compared 111389 event pairs, 3713 based on Foata normal form. 351/13435 useless extension candidates. Maximal degree in co-relation 40481. Up to 7913 conditions per place. [2024-11-19 09:24:17,590 INFO L140 encePairwiseOnDemand]: 49/55 looper letters, 45 selfloop transitions, 6 changer transitions 35/110 dead transitions. [2024-11-19 09:24:17,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 110 transitions, 727 flow [2024-11-19 09:24:17,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 09:24:17,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 09:24:17,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 242 transitions. [2024-11-19 09:24:17,592 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2024-11-19 09:24:17,592 INFO L175 Difference]: Start difference. First operand has 77 places, 55 transitions, 273 flow. Second operand 7 states and 242 transitions. [2024-11-19 09:24:17,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 110 transitions, 727 flow [2024-11-19 09:24:17,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 110 transitions, 694 flow, removed 14 selfloop flow, removed 5 redundant places. [2024-11-19 09:24:17,740 INFO L231 Difference]: Finished difference. Result has 77 places, 59 transitions, 334 flow [2024-11-19 09:24:17,741 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=334, PETRI_PLACES=77, PETRI_TRANSITIONS=59} [2024-11-19 09:24:17,743 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 15 predicate places. [2024-11-19 09:24:17,743 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 59 transitions, 334 flow [2024-11-19 09:24:17,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:24:17,744 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:24:17,744 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] [2024-11-19 09:24:17,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 09:24:17,744 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-19 09:24:17,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:24:17,745 INFO L85 PathProgramCache]: Analyzing trace with hash -725937440, now seen corresponding path program 1 times [2024-11-19 09:24:17,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:24:17,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670654037] [2024-11-19 09:24:17,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:24:17,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:24:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:24:18,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:24:18,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:24:18,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670654037] [2024-11-19 09:24:18,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670654037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:24:18,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:24:18,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 09:24:18,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002699751] [2024-11-19 09:24:18,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:24:18,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 09:24:18,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:24:18,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 09:24:18,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 09:24:18,080 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-19 09:24:18,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 59 transitions, 334 flow. Second operand has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:24:18,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:24:18,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-19 09:24:18,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:24:19,576 INFO L124 PetriNetUnfolderBase]: 8358/13914 cut-off events. [2024-11-19 09:24:19,577 INFO L125 PetriNetUnfolderBase]: For 29633/29660 co-relation queries the response was YES. [2024-11-19 09:24:19,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45634 conditions, 13914 events. 8358/13914 cut-off events. For 29633/29660 co-relation queries the response was YES. Maximal size of possible extension queue 707. Compared 107946 event pairs, 1215 based on Foata normal form. 272/14109 useless extension candidates. Maximal degree in co-relation 45610. Up to 5878 conditions per place. [2024-11-19 09:24:19,680 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 64 selfloop transitions, 16 changer transitions 64/160 dead transitions. [2024-11-19 09:24:19,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 160 transitions, 1218 flow [2024-11-19 09:24:19,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 09:24:19,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 09:24:19,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 331 transitions. [2024-11-19 09:24:19,684 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6018181818181818 [2024-11-19 09:24:19,684 INFO L175 Difference]: Start difference. First operand has 77 places, 59 transitions, 334 flow. Second operand 10 states and 331 transitions. [2024-11-19 09:24:19,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 160 transitions, 1218 flow [2024-11-19 09:24:19,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 160 transitions, 1156 flow, removed 27 selfloop flow, removed 7 redundant places. [2024-11-19 09:24:19,747 INFO L231 Difference]: Finished difference. Result has 84 places, 68 transitions, 481 flow [2024-11-19 09:24:19,748 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=481, PETRI_PLACES=84, PETRI_TRANSITIONS=68} [2024-11-19 09:24:19,748 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 22 predicate places. [2024-11-19 09:24:19,748 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 68 transitions, 481 flow [2024-11-19 09:24:19,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:24:19,749 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:24:19,749 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] [2024-11-19 09:24:19,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 09:24:19,749 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-19 09:24:19,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:24:19,750 INFO L85 PathProgramCache]: Analyzing trace with hash -535170218, now seen corresponding path program 1 times [2024-11-19 09:24:19,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:24:19,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822852260] [2024-11-19 09:24:19,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:24:19,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:24:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:24:19,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:24:19,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:24:19,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822852260] [2024-11-19 09:24:19,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822852260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:24:19,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:24:19,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:24:19,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105207568] [2024-11-19 09:24:19,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:24:19,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:24:19,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:24:19,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:24:19,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:24:19,969 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-19 09:24:19,970 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 68 transitions, 481 flow. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:24:19,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:24:19,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-19 09:24:19,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:24:22,630 INFO L124 PetriNetUnfolderBase]: 17289/26272 cut-off events. [2024-11-19 09:24:22,630 INFO L125 PetriNetUnfolderBase]: For 51043/54449 co-relation queries the response was YES. [2024-11-19 09:24:22,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74965 conditions, 26272 events. 17289/26272 cut-off events. For 51043/54449 co-relation queries the response was YES. Maximal size of possible extension queue 1297. Compared 196502 event pairs, 2930 based on Foata normal form. 1113/26500 useless extension candidates. Maximal degree in co-relation 74937. Up to 13885 conditions per place. [2024-11-19 09:24:22,950 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 60 selfloop transitions, 6 changer transitions 0/104 dead transitions. [2024-11-19 09:24:22,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 104 transitions, 789 flow [2024-11-19 09:24:22,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 09:24:22,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 09:24:22,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 148 transitions. [2024-11-19 09:24:22,952 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6727272727272727 [2024-11-19 09:24:22,952 INFO L175 Difference]: Start difference. First operand has 84 places, 68 transitions, 481 flow. Second operand 4 states and 148 transitions. [2024-11-19 09:24:22,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 104 transitions, 789 flow [2024-11-19 09:24:23,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 104 transitions, 767 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-11-19 09:24:23,164 INFO L231 Difference]: Finished difference. Result has 78 places, 73 transitions, 505 flow [2024-11-19 09:24:23,165 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=459, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=505, PETRI_PLACES=78, PETRI_TRANSITIONS=73} [2024-11-19 09:24:23,165 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 16 predicate places. [2024-11-19 09:24:23,165 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 73 transitions, 505 flow [2024-11-19 09:24:23,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:24:23,166 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:24:23,166 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] [2024-11-19 09:24:23,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 09:24:23,166 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-19 09:24:23,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:24:23,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1314255406, now seen corresponding path program 1 times [2024-11-19 09:24:23,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:24:23,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713737569] [2024-11-19 09:24:23,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:24:23,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:24:23,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:24:23,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:24:23,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:24:23,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713737569] [2024-11-19 09:24:23,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713737569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:24:23,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:24:23,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 09:24:23,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243080218] [2024-11-19 09:24:23,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:24:23,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 09:24:23,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:24:23,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 09:24:23,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 09:24:23,514 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-19 09:24:23,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 73 transitions, 505 flow. Second operand has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:24:23,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:24:23,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-19 09:24:23,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:24:26,448 INFO L124 PetriNetUnfolderBase]: 19456/30547 cut-off events. [2024-11-19 09:24:26,448 INFO L125 PetriNetUnfolderBase]: For 70861/72357 co-relation queries the response was YES. [2024-11-19 09:24:26,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100844 conditions, 30547 events. 19456/30547 cut-off events. For 70861/72357 co-relation queries the response was YES. Maximal size of possible extension queue 1441. Compared 243838 event pairs, 8576 based on Foata normal form. 392/28376 useless extension candidates. Maximal degree in co-relation 100817. Up to 13460 conditions per place. [2024-11-19 09:24:26,754 INFO L140 encePairwiseOnDemand]: 47/55 looper letters, 90 selfloop transitions, 21 changer transitions 8/140 dead transitions. [2024-11-19 09:24:26,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 140 transitions, 1061 flow [2024-11-19 09:24:26,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 09:24:26,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 09:24:26,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 267 transitions. [2024-11-19 09:24:26,755 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6068181818181818 [2024-11-19 09:24:26,756 INFO L175 Difference]: Start difference. First operand has 78 places, 73 transitions, 505 flow. Second operand 8 states and 267 transitions. [2024-11-19 09:24:26,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 140 transitions, 1061 flow [2024-11-19 09:24:26,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 140 transitions, 1045 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-19 09:24:26,848 INFO L231 Difference]: Finished difference. Result has 88 places, 76 transitions, 602 flow [2024-11-19 09:24:26,849 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=493, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=602, PETRI_PLACES=88, PETRI_TRANSITIONS=76} [2024-11-19 09:24:26,849 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 26 predicate places. [2024-11-19 09:24:26,849 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 76 transitions, 602 flow [2024-11-19 09:24:26,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:24:26,850 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:24:26,850 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] [2024-11-19 09:24:26,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 09:24:26,850 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-19 09:24:26,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:24:26,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1358838178, now seen corresponding path program 1 times [2024-11-19 09:24:26,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:24:26,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842085968] [2024-11-19 09:24:26,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:24:26,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:24:26,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:24:27,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:24:27,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:24:27,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842085968] [2024-11-19 09:24:27,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842085968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:24:27,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:24:27,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 09:24:27,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658586008] [2024-11-19 09:24:27,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:24:27,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 09:24:27,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:24:27,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 09:24:27,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 09:24:27,021 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-19 09:24:27,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 76 transitions, 602 flow. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:24:27,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:24:27,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-19 09:24:27,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:24:30,176 INFO L124 PetriNetUnfolderBase]: 20124/30887 cut-off events. [2024-11-19 09:24:30,176 INFO L125 PetriNetUnfolderBase]: For 57942/62347 co-relation queries the response was YES. [2024-11-19 09:24:30,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94942 conditions, 30887 events. 20124/30887 cut-off events. For 57942/62347 co-relation queries the response was YES. Maximal size of possible extension queue 1520. Compared 234960 event pairs, 2131 based on Foata normal form. 1511/31663 useless extension candidates. Maximal degree in co-relation 94910. Up to 12625 conditions per place. [2024-11-19 09:24:30,497 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 77 selfloop transitions, 10 changer transitions 3/127 dead transitions. [2024-11-19 09:24:30,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 127 transitions, 1045 flow [2024-11-19 09:24:30,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:24:30,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:24:30,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 189 transitions. [2024-11-19 09:24:30,498 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6872727272727273 [2024-11-19 09:24:30,498 INFO L175 Difference]: Start difference. First operand has 88 places, 76 transitions, 602 flow. Second operand 5 states and 189 transitions. [2024-11-19 09:24:30,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 127 transitions, 1045 flow [2024-11-19 09:24:30,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 127 transitions, 1019 flow, removed 13 selfloop flow, removed 0 redundant places. [2024-11-19 09:24:30,723 INFO L231 Difference]: Finished difference. Result has 94 places, 78 transitions, 615 flow [2024-11-19 09:24:30,723 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=576, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=615, PETRI_PLACES=94, PETRI_TRANSITIONS=78} [2024-11-19 09:24:30,724 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 32 predicate places. [2024-11-19 09:24:30,724 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 78 transitions, 615 flow [2024-11-19 09:24:30,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:24:30,724 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:24:30,724 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] [2024-11-19 09:24:30,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 09:24:30,725 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-19 09:24:30,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:24:30,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1883885177, now seen corresponding path program 1 times [2024-11-19 09:24:30,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:24:30,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840733890] [2024-11-19 09:24:30,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:24:30,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:24:30,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:24:30,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:24:30,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:24:30,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840733890] [2024-11-19 09:24:30,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840733890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:24:30,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:24:30,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 09:24:30,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534524375] [2024-11-19 09:24:30,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:24:30,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 09:24:30,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:24:30,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 09:24:30,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 09:24:31,007 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-11-19 09:24:31,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 78 transitions, 615 flow. Second operand has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:24:31,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:24:31,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-11-19 09:24:31,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:24:34,851 INFO L124 PetriNetUnfolderBase]: 20386/35398 cut-off events. [2024-11-19 09:24:34,851 INFO L125 PetriNetUnfolderBase]: For 79662/87995 co-relation queries the response was YES. [2024-11-19 09:24:35,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112834 conditions, 35398 events. 20386/35398 cut-off events. For 79662/87995 co-relation queries the response was YES. Maximal size of possible extension queue 2036. Compared 332080 event pairs, 6101 based on Foata normal form. 703/32929 useless extension candidates. Maximal degree in co-relation 112798. Up to 13235 conditions per place. [2024-11-19 09:24:35,253 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 69 selfloop transitions, 6 changer transitions 5/127 dead transitions. [2024-11-19 09:24:35,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 127 transitions, 1043 flow [2024-11-19 09:24:35,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 09:24:35,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 09:24:35,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 210 transitions. [2024-11-19 09:24:35,255 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6363636363636364 [2024-11-19 09:24:35,255 INFO L175 Difference]: Start difference. First operand has 94 places, 78 transitions, 615 flow. Second operand 6 states and 210 transitions. [2024-11-19 09:24:35,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 127 transitions, 1043 flow [2024-11-19 09:24:35,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 127 transitions, 1018 flow, removed 9 selfloop flow, removed 4 redundant places. [2024-11-19 09:24:35,635 INFO L231 Difference]: Finished difference. Result has 97 places, 82 transitions, 669 flow [2024-11-19 09:24:35,635 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=594, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=669, PETRI_PLACES=97, PETRI_TRANSITIONS=82} [2024-11-19 09:24:35,636 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 35 predicate places. [2024-11-19 09:24:35,636 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 82 transitions, 669 flow [2024-11-19 09:24:35,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:24:35,636 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:24:35,637 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] [2024-11-19 09:24:35,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 09:24:35,637 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-19 09:24:35,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:24:35,637 INFO L85 PathProgramCache]: Analyzing trace with hash 2142141743, now seen corresponding path program 2 times [2024-11-19 09:24:35,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:24:35,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820733889] [2024-11-19 09:24:35,637 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:24:35,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:24:35,689 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 09:24:35,689 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:24:35,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:24:35,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:24:35,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820733889] [2024-11-19 09:24:35,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820733889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:24:35,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:24:35,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 09:24:35,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539710506] [2024-11-19 09:24:35,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:24:35,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 09:24:35,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:24:35,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 09:24:35,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-19 09:24:35,880 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-19 09:24:35,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 82 transitions, 669 flow. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:24:35,880 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:24:35,880 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-19 09:24:35,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:24:40,448 INFO L124 PetriNetUnfolderBase]: 26400/39977 cut-off events. [2024-11-19 09:24:40,448 INFO L125 PetriNetUnfolderBase]: For 88787/98728 co-relation queries the response was YES. [2024-11-19 09:24:40,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132338 conditions, 39977 events. 26400/39977 cut-off events. For 88787/98728 co-relation queries the response was YES. Maximal size of possible extension queue 2204. Compared 311118 event pairs, 1627 based on Foata normal form. 1991/40887 useless extension candidates. Maximal degree in co-relation 132301. Up to 12928 conditions per place. [2024-11-19 09:24:40,817 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 88 selfloop transitions, 14 changer transitions 5/145 dead transitions. [2024-11-19 09:24:40,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 145 transitions, 1214 flow [2024-11-19 09:24:40,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 09:24:40,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 09:24:40,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 228 transitions. [2024-11-19 09:24:40,819 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6909090909090909 [2024-11-19 09:24:40,819 INFO L175 Difference]: Start difference. First operand has 97 places, 82 transitions, 669 flow. Second operand 6 states and 228 transitions. [2024-11-19 09:24:40,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 145 transitions, 1214 flow [2024-11-19 09:24:40,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 145 transitions, 1211 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-19 09:24:40,935 INFO L231 Difference]: Finished difference. Result has 103 places, 84 transitions, 707 flow [2024-11-19 09:24:40,936 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=666, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=707, PETRI_PLACES=103, PETRI_TRANSITIONS=84} [2024-11-19 09:24:40,936 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 41 predicate places. [2024-11-19 09:24:40,936 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 84 transitions, 707 flow [2024-11-19 09:24:40,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:24:40,936 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:24:40,936 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:24:40,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 09:24:40,937 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-19 09:24:40,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:24:40,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1784239248, now seen corresponding path program 1 times [2024-11-19 09:24:40,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:24:40,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164468206] [2024-11-19 09:24:40,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:24:40,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:24:41,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:24:41,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:24:41,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:24:41,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164468206] [2024-11-19 09:24:41,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164468206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:24:41,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:24:41,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 09:24:41,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192120974] [2024-11-19 09:24:41,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:24:41,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 09:24:41,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:24:41,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 09:24:41,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-19 09:24:41,175 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-19 09:24:41,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 84 transitions, 707 flow. Second operand has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:24:41,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:24:41,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-19 09:24:41,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand