./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix030_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix030_tso.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 20a2c57970e5e291ffc10826c9a5fbe3296a1e55ae86cfd2b786718aae571bfa --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:33:23,710 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:33:23,764 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 19:33:23,770 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:33:23,770 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:33:23,795 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:33:23,796 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:33:23,796 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:33:23,796 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:33:23,798 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:33:23,798 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:33:23,798 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:33:23,799 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:33:23,799 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:33:23,802 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:33:23,802 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:33:23,802 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:33:23,802 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:33:23,803 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:33:23,803 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:33:23,803 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:33:23,803 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:33:23,804 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:33:23,804 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:33:23,804 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:33:23,804 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:33:23,804 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:33:23,805 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:33:23,805 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:33:23,805 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:33:23,805 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:33:23,806 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:33:23,806 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:33:23,807 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:33:23,807 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:33:23,807 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:33:23,807 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 19:33:23,808 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 19:33:23,808 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:33:23,808 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:33:23,808 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:33:23,809 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:33:23,809 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20a2c57970e5e291ffc10826c9a5fbe3296a1e55ae86cfd2b786718aae571bfa [2024-10-11 19:33:24,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:33:24,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:33:24,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:33:24,045 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:33:24,045 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:33:24,046 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix030_tso.i [2024-10-11 19:33:25,257 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:33:25,441 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:33:25,442 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix030_tso.i [2024-10-11 19:33:25,457 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/7d84bb794/c08d7d89f11e477c876f7c5e228d9dc5/FLAG9235b18c4 [2024-10-11 19:33:25,811 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/7d84bb794/c08d7d89f11e477c876f7c5e228d9dc5 [2024-10-11 19:33:25,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:33:25,814 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:33:25,817 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:33:25,817 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:33:25,821 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:33:25,822 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:33:25" (1/1) ... [2024-10-11 19:33:25,822 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3322f926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:33:25, skipping insertion in model container [2024-10-11 19:33:25,823 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:33:25" (1/1) ... [2024-10-11 19:33:25,858 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:33:26,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:33:26,199 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:33:26,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:33:26,302 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:33:26,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:33:26 WrapperNode [2024-10-11 19:33:26,303 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:33:26,304 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:33:26,304 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:33:26,305 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:33:26,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:33:26" (1/1) ... [2024-10-11 19:33:26,332 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:33:26" (1/1) ... [2024-10-11 19:33:26,367 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 171 [2024-10-11 19:33:26,368 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:33:26,368 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:33:26,368 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:33:26,368 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:33:26,377 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:33:26" (1/1) ... [2024-10-11 19:33:26,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:33:26" (1/1) ... [2024-10-11 19:33:26,384 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:33:26" (1/1) ... [2024-10-11 19:33:26,415 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-11 19:33:26,416 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:33:26" (1/1) ... [2024-10-11 19:33:26,416 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:33:26" (1/1) ... [2024-10-11 19:33:26,457 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:33:26" (1/1) ... [2024-10-11 19:33:26,459 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:33:26" (1/1) ... [2024-10-11 19:33:26,460 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:33:26" (1/1) ... [2024-10-11 19:33:26,466 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:33:26" (1/1) ... [2024-10-11 19:33:26,472 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:33:26,476 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:33:26,476 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:33:26,476 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:33:26,477 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:33:26" (1/1) ... [2024-10-11 19:33:26,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:33:26,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:33:26,507 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 19:33:26,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 19:33:26,567 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 19:33:26,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:33:26,567 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-11 19:33:26,567 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-11 19:33:26,567 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-11 19:33:26,567 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-11 19:33:26,568 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-11 19:33:26,568 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-11 19:33:26,568 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-11 19:33:26,568 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-11 19:33:26,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 19:33:26,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 19:33:26,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:33:26,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:33:26,571 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 19:33:26,674 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:33:26,675 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:33:26,947 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 19:33:26,947 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:33:27,122 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:33:27,123 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 19:33:27,123 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:33:27 BoogieIcfgContainer [2024-10-11 19:33:27,123 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:33:27,125 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:33:27,125 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:33:27,127 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:33:27,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:33:25" (1/3) ... [2024-10-11 19:33:27,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@270c14fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:33:27, skipping insertion in model container [2024-10-11 19:33:27,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:33:26" (2/3) ... [2024-10-11 19:33:27,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@270c14fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:33:27, skipping insertion in model container [2024-10-11 19:33:27,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:33:27" (3/3) ... [2024-10-11 19:33:27,131 INFO L112 eAbstractionObserver]: Analyzing ICFG mix030_tso.i [2024-10-11 19:33:27,145 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:33:27,145 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-11 19:33:27,145 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 19:33:27,186 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 19:33:27,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 54 transitions, 124 flow [2024-10-11 19:33:27,239 INFO L124 PetriNetUnfolderBase]: 2/50 cut-off events. [2024-10-11 19:33:27,240 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:33:27,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 50 events. 2/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 103 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2024-10-11 19:33:27,245 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 54 transitions, 124 flow [2024-10-11 19:33:27,249 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 50 transitions, 112 flow [2024-10-11 19:33:27,256 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:33:27,262 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;@7d4b1036, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:33:27,263 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-11 19:33:27,272 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 19:33:27,273 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2024-10-11 19:33:27,273 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:33:27,273 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:33:27,274 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:33:27,274 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:33:27,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:33:27,279 INFO L85 PathProgramCache]: Analyzing trace with hash -695178262, now seen corresponding path program 1 times [2024-10-11 19:33:27,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:33:27,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830169175] [2024-10-11 19:33:27,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:33:27,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:33:27,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:33:27,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:33:27,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:33:27,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830169175] [2024-10-11 19:33:27,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830169175] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:33:27,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:33:27,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:33:27,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578826021] [2024-10-11 19:33:27,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:33:27,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:33:27,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:33:27,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:33:27,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:33:27,798 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 54 [2024-10-11 19:33:27,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:33:27,800 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:33:27,800 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 54 [2024-10-11 19:33:27,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:33:28,174 INFO L124 PetriNetUnfolderBase]: 1323/2219 cut-off events. [2024-10-11 19:33:28,174 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:33:28,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4163 conditions, 2219 events. 1323/2219 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 15785 event pairs, 219 based on Foata normal form. 120/2298 useless extension candidates. Maximal degree in co-relation 4151. Up to 1537 conditions per place. [2024-10-11 19:33:28,192 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 32 selfloop transitions, 2 changer transitions 2/58 dead transitions. [2024-10-11 19:33:28,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 58 transitions, 200 flow [2024-10-11 19:33:28,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:33:28,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:33:28,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 119 transitions. [2024-10-11 19:33:28,202 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7345679012345679 [2024-10-11 19:33:28,203 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 112 flow. Second operand 3 states and 119 transitions. [2024-10-11 19:33:28,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 58 transitions, 200 flow [2024-10-11 19:33:28,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 58 transitions, 196 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-11 19:33:28,208 INFO L231 Difference]: Finished difference. Result has 57 places, 45 transitions, 102 flow [2024-10-11 19:33:28,209 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=57, PETRI_TRANSITIONS=45} [2024-10-11 19:33:28,213 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2024-10-11 19:33:28,213 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 45 transitions, 102 flow [2024-10-11 19:33:28,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:33:28,214 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:33:28,214 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:33:28,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 19:33:28,215 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:33:28,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:33:28,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1262996493, now seen corresponding path program 1 times [2024-10-11 19:33:28,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:33:28,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347784688] [2024-10-11 19:33:28,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:33:28,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:33:28,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:33:28,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:33:28,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:33:28,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347784688] [2024-10-11 19:33:28,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347784688] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:33:28,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:33:28,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:33:28,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750349160] [2024-10-11 19:33:28,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:33:28,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:33:28,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:33:28,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:33:28,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:33:28,282 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 54 [2024-10-11 19:33:28,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:33:28,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:33:28,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 54 [2024-10-11 19:33:28,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:33:28,504 INFO L124 PetriNetUnfolderBase]: 1175/2011 cut-off events. [2024-10-11 19:33:28,505 INFO L125 PetriNetUnfolderBase]: For 96/96 co-relation queries the response was YES. [2024-10-11 19:33:28,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3841 conditions, 2011 events. 1175/2011 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 14568 event pairs, 1175 based on Foata normal form. 60/2006 useless extension candidates. Maximal degree in co-relation 3831. Up to 1692 conditions per place. [2024-10-11 19:33:28,517 INFO L140 encePairwiseOnDemand]: 52/54 looper letters, 21 selfloop transitions, 1 changer transitions 1/44 dead transitions. [2024-10-11 19:33:28,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 44 transitions, 146 flow [2024-10-11 19:33:28,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:33:28,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:33:28,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions. [2024-10-11 19:33:28,520 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-10-11 19:33:28,521 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 99 transitions. [2024-10-11 19:33:28,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 44 transitions, 146 flow [2024-10-11 19:33:28,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 44 transitions, 142 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 19:33:28,525 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 96 flow [2024-10-11 19:33:28,526 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2024-10-11 19:33:28,527 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -6 predicate places. [2024-10-11 19:33:28,527 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 96 flow [2024-10-11 19:33:28,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:33:28,528 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:33:28,528 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:33:28,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 19:33:28,529 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:33:28,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:33:28,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1262997747, now seen corresponding path program 1 times [2024-10-11 19:33:28,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:33:28,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873399589] [2024-10-11 19:33:28,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:33:28,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:33:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:33:28,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:33:28,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:33:28,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873399589] [2024-10-11 19:33:28,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873399589] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:33:28,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:33:28,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:33:28,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317411736] [2024-10-11 19:33:28,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:33:28,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:33:28,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:33:28,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:33:28,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:33:28,828 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 54 [2024-10-11 19:33:28,829 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:33:28,829 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:33:28,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 54 [2024-10-11 19:33:28,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:33:29,575 INFO L124 PetriNetUnfolderBase]: 3832/6557 cut-off events. [2024-10-11 19:33:29,575 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:33:29,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11977 conditions, 6557 events. 3832/6557 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 48666 event pairs, 1168 based on Foata normal form. 0/6316 useless extension candidates. Maximal degree in co-relation 11971. Up to 3323 conditions per place. [2024-10-11 19:33:29,653 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 38 selfloop transitions, 3 changer transitions 52/111 dead transitions. [2024-10-11 19:33:29,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 111 transitions, 424 flow [2024-10-11 19:33:29,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 19:33:29,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 19:33:29,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 279 transitions. [2024-10-11 19:33:29,658 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6458333333333334 [2024-10-11 19:33:29,658 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 96 flow. Second operand 8 states and 279 transitions. [2024-10-11 19:33:29,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 111 transitions, 424 flow [2024-10-11 19:33:29,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 111 transitions, 423 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:33:29,661 INFO L231 Difference]: Finished difference. Result has 65 places, 44 transitions, 128 flow [2024-10-11 19:33:29,661 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=128, PETRI_PLACES=65, PETRI_TRANSITIONS=44} [2024-10-11 19:33:29,662 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 4 predicate places. [2024-10-11 19:33:29,663 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 44 transitions, 128 flow [2024-10-11 19:33:29,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:33:29,663 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:33:29,663 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:33:29,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 19:33:29,663 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:33:29,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:33:29,664 INFO L85 PathProgramCache]: Analyzing trace with hash 779691890, now seen corresponding path program 1 times [2024-10-11 19:33:29,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:33:29,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161230153] [2024-10-11 19:33:29,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:33:29,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:33:29,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:33:30,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:33:30,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:33:30,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161230153] [2024-10-11 19:33:30,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161230153] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:33:30,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:33:30,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:33:30,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954150401] [2024-10-11 19:33:30,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:33:30,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:33:30,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:33:30,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:33:30,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:33:30,450 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-10-11 19:33:30,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 44 transitions, 128 flow. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:33:30,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:33:30,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-10-11 19:33:30,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:33:32,067 INFO L124 PetriNetUnfolderBase]: 9763/15303 cut-off events. [2024-10-11 19:33:32,067 INFO L125 PetriNetUnfolderBase]: For 10527/10527 co-relation queries the response was YES. [2024-10-11 19:33:32,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36269 conditions, 15303 events. 9763/15303 cut-off events. For 10527/10527 co-relation queries the response was YES. Maximal size of possible extension queue 845. Compared 115903 event pairs, 1445 based on Foata normal form. 424/15624 useless extension candidates. Maximal degree in co-relation 36257. Up to 5625 conditions per place. [2024-10-11 19:33:32,173 INFO L140 encePairwiseOnDemand]: 41/54 looper letters, 47 selfloop transitions, 11 changer transitions 69/142 dead transitions. [2024-10-11 19:33:32,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 142 transitions, 704 flow [2024-10-11 19:33:32,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:33:32,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 19:33:32,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 326 transitions. [2024-10-11 19:33:32,175 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6037037037037037 [2024-10-11 19:33:32,175 INFO L175 Difference]: Start difference. First operand has 65 places, 44 transitions, 128 flow. Second operand 10 states and 326 transitions. [2024-10-11 19:33:32,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 142 transitions, 704 flow [2024-10-11 19:33:32,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 142 transitions, 685 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-10-11 19:33:32,298 INFO L231 Difference]: Finished difference. Result has 74 places, 53 transitions, 259 flow [2024-10-11 19:33:32,299 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=259, PETRI_PLACES=74, PETRI_TRANSITIONS=53} [2024-10-11 19:33:32,299 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 13 predicate places. [2024-10-11 19:33:32,299 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 53 transitions, 259 flow [2024-10-11 19:33:32,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:33:32,300 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:33:32,300 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:33:32,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 19:33:32,301 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:33:32,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:33:32,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1146787146, now seen corresponding path program 1 times [2024-10-11 19:33:32,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:33:32,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252803958] [2024-10-11 19:33:32,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:33:32,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:33:32,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:33:32,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:33:32,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:33:32,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252803958] [2024-10-11 19:33:32,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252803958] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:33:32,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:33:32,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:33:32,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148813220] [2024-10-11 19:33:32,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:33:32,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:33:32,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:33:32,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:33:32,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:33:32,977 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-10-11 19:33:32,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 53 transitions, 259 flow. Second operand has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:33:32,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:33:32,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-10-11 19:33:32,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:33:34,615 INFO L124 PetriNetUnfolderBase]: 9395/15539 cut-off events. [2024-10-11 19:33:34,615 INFO L125 PetriNetUnfolderBase]: For 41054/41054 co-relation queries the response was YES. [2024-10-11 19:33:34,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52583 conditions, 15539 events. 9395/15539 cut-off events. For 41054/41054 co-relation queries the response was YES. Maximal size of possible extension queue 811. Compared 124007 event pairs, 985 based on Foata normal form. 298/15797 useless extension candidates. Maximal degree in co-relation 52563. Up to 6703 conditions per place. [2024-10-11 19:33:34,730 INFO L140 encePairwiseOnDemand]: 40/54 looper letters, 60 selfloop transitions, 23 changer transitions 70/168 dead transitions. [2024-10-11 19:33:34,731 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 168 transitions, 1293 flow [2024-10-11 19:33:34,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:33:34,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 19:33:34,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 329 transitions. [2024-10-11 19:33:34,733 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6092592592592593 [2024-10-11 19:33:34,733 INFO L175 Difference]: Start difference. First operand has 74 places, 53 transitions, 259 flow. Second operand 10 states and 329 transitions. [2024-10-11 19:33:34,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 168 transitions, 1293 flow [2024-10-11 19:33:34,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 168 transitions, 1275 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-10-11 19:33:34,787 INFO L231 Difference]: Finished difference. Result has 83 places, 72 transitions, 548 flow [2024-10-11 19:33:34,787 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=548, PETRI_PLACES=83, PETRI_TRANSITIONS=72} [2024-10-11 19:33:34,789 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 22 predicate places. [2024-10-11 19:33:34,790 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 72 transitions, 548 flow [2024-10-11 19:33:34,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:33:34,790 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:33:34,790 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:33:34,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 19:33:34,791 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:33:34,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:33:34,791 INFO L85 PathProgramCache]: Analyzing trace with hash 2005992067, now seen corresponding path program 1 times [2024-10-11 19:33:34,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:33:34,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670165112] [2024-10-11 19:33:34,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:33:34,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:33:34,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:33:35,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:33:35,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:33:35,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670165112] [2024-10-11 19:33:35,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670165112] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:33:35,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:33:35,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:33:35,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873377615] [2024-10-11 19:33:35,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:33:35,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:33:35,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:33:35,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:33:35,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:33:35,066 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 54 [2024-10-11 19:33:35,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 72 transitions, 548 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) [2024-10-11 19:33:35,067 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:33:35,067 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 54 [2024-10-11 19:33:35,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:33:36,984 INFO L124 PetriNetUnfolderBase]: 9597/16373 cut-off events. [2024-10-11 19:33:36,985 INFO L125 PetriNetUnfolderBase]: For 67579/68058 co-relation queries the response was YES. [2024-10-11 19:33:37,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62296 conditions, 16373 events. 9597/16373 cut-off events. For 67579/68058 co-relation queries the response was YES. Maximal size of possible extension queue 915. Compared 141199 event pairs, 3534 based on Foata normal form. 409/16152 useless extension candidates. Maximal degree in co-relation 62268. Up to 5942 conditions per place. [2024-10-11 19:33:37,091 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 56 selfloop transitions, 7 changer transitions 41/135 dead transitions. [2024-10-11 19:33:37,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 135 transitions, 1170 flow [2024-10-11 19:33:37,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:33:37,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:33:37,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 234 transitions. [2024-10-11 19:33:37,092 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6190476190476191 [2024-10-11 19:33:37,092 INFO L175 Difference]: Start difference. First operand has 83 places, 72 transitions, 548 flow. Second operand 7 states and 234 transitions. [2024-10-11 19:33:37,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 135 transitions, 1170 flow [2024-10-11 19:33:37,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 135 transitions, 1130 flow, removed 20 selfloop flow, removed 4 redundant places. [2024-10-11 19:33:37,476 INFO L231 Difference]: Finished difference. Result has 84 places, 71 transitions, 551 flow [2024-10-11 19:33:37,476 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=551, PETRI_PLACES=84, PETRI_TRANSITIONS=71} [2024-10-11 19:33:37,477 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 23 predicate places. [2024-10-11 19:33:37,477 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 71 transitions, 551 flow [2024-10-11 19:33:37,477 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) [2024-10-11 19:33:37,477 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:33:37,478 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] [2024-10-11 19:33:37,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 19:33:37,478 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:33:37,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:33:37,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1626753565, now seen corresponding path program 1 times [2024-10-11 19:33:37,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:33:37,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592837694] [2024-10-11 19:33:37,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:33:37,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:33:37,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:33:37,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:33:37,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:33:37,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592837694] [2024-10-11 19:33:37,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592837694] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:33:37,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:33:37,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:33:37,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401761209] [2024-10-11 19:33:37,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:33:37,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:33:37,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:33:37,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:33:37,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:33:37,701 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 54 [2024-10-11 19:33:37,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 71 transitions, 551 flow. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:33:37,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:33:37,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 54 [2024-10-11 19:33:37,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:33:41,914 INFO L124 PetriNetUnfolderBase]: 29954/44270 cut-off events. [2024-10-11 19:33:41,915 INFO L125 PetriNetUnfolderBase]: For 109720/121738 co-relation queries the response was YES. [2024-10-11 19:33:42,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140861 conditions, 44270 events. 29954/44270 cut-off events. For 109720/121738 co-relation queries the response was YES. Maximal size of possible extension queue 2145. Compared 337359 event pairs, 5826 based on Foata normal form. 3184/45549 useless extension candidates. Maximal degree in co-relation 140831. Up to 24456 conditions per place. [2024-10-11 19:33:42,290 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 70 selfloop transitions, 6 changer transitions 0/111 dead transitions. [2024-10-11 19:33:42,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 111 transitions, 925 flow [2024-10-11 19:33:42,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:33:42,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 19:33:42,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 141 transitions. [2024-10-11 19:33:42,291 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6527777777777778 [2024-10-11 19:33:42,291 INFO L175 Difference]: Start difference. First operand has 84 places, 71 transitions, 551 flow. Second operand 4 states and 141 transitions. [2024-10-11 19:33:42,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 111 transitions, 925 flow [2024-10-11 19:33:42,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 111 transitions, 894 flow, removed 12 selfloop flow, removed 7 redundant places. [2024-10-11 19:33:42,617 INFO L231 Difference]: Finished difference. Result has 78 places, 76 transitions, 574 flow [2024-10-11 19:33:42,617 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=574, PETRI_PLACES=78, PETRI_TRANSITIONS=76} [2024-10-11 19:33:42,617 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 17 predicate places. [2024-10-11 19:33:42,618 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 76 transitions, 574 flow [2024-10-11 19:33:42,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:33:42,618 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:33:42,618 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] [2024-10-11 19:33:42,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 19:33:42,618 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:33:42,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:33:42,618 INFO L85 PathProgramCache]: Analyzing trace with hash 335113011, now seen corresponding path program 1 times [2024-10-11 19:33:42,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:33:42,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433136315] [2024-10-11 19:33:42,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:33:42,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:33:42,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:33:43,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:33:43,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:33:43,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433136315] [2024-10-11 19:33:43,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433136315] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:33:43,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:33:43,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:33:43,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463581196] [2024-10-11 19:33:43,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:33:43,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:33:43,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:33:43,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:33:43,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:33:43,020 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 54 [2024-10-11 19:33:43,020 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 76 transitions, 574 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) [2024-10-11 19:33:43,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:33:43,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 54 [2024-10-11 19:33:43,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:33:47,263 INFO L124 PetriNetUnfolderBase]: 26170/43528 cut-off events. [2024-10-11 19:33:47,263 INFO L125 PetriNetUnfolderBase]: For 116668/120865 co-relation queries the response was YES. [2024-10-11 19:33:47,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147292 conditions, 43528 events. 26170/43528 cut-off events. For 116668/120865 co-relation queries the response was YES. Maximal size of possible extension queue 2343. Compared 399802 event pairs, 11124 based on Foata normal form. 1836/41236 useless extension candidates. Maximal degree in co-relation 147265. Up to 16229 conditions per place. [2024-10-11 19:33:47,685 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 85 selfloop transitions, 17 changer transitions 4/138 dead transitions. [2024-10-11 19:33:47,685 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 138 transitions, 1168 flow [2024-10-11 19:33:47,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:33:47,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:33:47,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 236 transitions. [2024-10-11 19:33:47,686 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6243386243386243 [2024-10-11 19:33:47,687 INFO L175 Difference]: Start difference. First operand has 78 places, 76 transitions, 574 flow. Second operand 7 states and 236 transitions. [2024-10-11 19:33:47,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 138 transitions, 1168 flow [2024-10-11 19:33:47,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 138 transitions, 1154 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-10-11 19:33:47,712 INFO L231 Difference]: Finished difference. Result has 88 places, 81 transitions, 686 flow [2024-10-11 19:33:47,714 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=686, PETRI_PLACES=88, PETRI_TRANSITIONS=81} [2024-10-11 19:33:47,715 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 27 predicate places. [2024-10-11 19:33:47,715 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 81 transitions, 686 flow [2024-10-11 19:33:47,715 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) [2024-10-11 19:33:47,715 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:33:47,716 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] [2024-10-11 19:33:47,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 19:33:47,716 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:33:47,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:33:47,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1803320923, now seen corresponding path program 1 times [2024-10-11 19:33:47,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:33:47,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226075906] [2024-10-11 19:33:47,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:33:47,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:33:47,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:33:47,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:33:47,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:33:47,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226075906] [2024-10-11 19:33:47,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226075906] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:33:47,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:33:47,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:33:47,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127005563] [2024-10-11 19:33:47,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:33:47,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:33:47,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:33:47,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:33:47,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:33:47,943 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 54 [2024-10-11 19:33:47,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 81 transitions, 686 flow. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:33:47,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:33:47,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 54 [2024-10-11 19:33:47,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:33:53,212 INFO L124 PetriNetUnfolderBase]: 37111/54833 cut-off events. [2024-10-11 19:33:53,212 INFO L125 PetriNetUnfolderBase]: For 133047/149271 co-relation queries the response was YES. [2024-10-11 19:33:53,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184777 conditions, 54833 events. 37111/54833 cut-off events. For 133047/149271 co-relation queries the response was YES. Maximal size of possible extension queue 2705. Compared 425657 event pairs, 4429 based on Foata normal form. 4299/57098 useless extension candidates. Maximal degree in co-relation 184745. Up to 23429 conditions per place. [2024-10-11 19:33:53,602 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 88 selfloop transitions, 10 changer transitions 5/138 dead transitions. [2024-10-11 19:33:53,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 138 transitions, 1210 flow [2024-10-11 19:33:53,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:33:53,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:33:53,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 180 transitions. [2024-10-11 19:33:53,604 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-10-11 19:33:53,604 INFO L175 Difference]: Start difference. First operand has 88 places, 81 transitions, 686 flow. Second operand 5 states and 180 transitions. [2024-10-11 19:33:53,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 138 transitions, 1210 flow [2024-10-11 19:33:53,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 138 transitions, 1172 flow, removed 13 selfloop flow, removed 1 redundant places. [2024-10-11 19:33:53,791 INFO L231 Difference]: Finished difference. Result has 93 places, 81 transitions, 657 flow [2024-10-11 19:33:53,791 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=657, PETRI_PLACES=93, PETRI_TRANSITIONS=81} [2024-10-11 19:33:53,792 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 32 predicate places. [2024-10-11 19:33:53,792 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 81 transitions, 657 flow [2024-10-11 19:33:53,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:33:53,792 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:33:53,792 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] [2024-10-11 19:33:53,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 19:33:53,793 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:33:53,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:33:53,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1546864659, now seen corresponding path program 1 times [2024-10-11 19:33:53,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:33:53,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537893973] [2024-10-11 19:33:53,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:33:53,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:33:53,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:33:54,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:33:54,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:33:54,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537893973] [2024-10-11 19:33:54,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537893973] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:33:54,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:33:54,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:33:54,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163037991] [2024-10-11 19:33:54,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:33:54,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:33:54,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:33:54,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:33:54,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:33:54,030 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 54 [2024-10-11 19:33:54,030 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 81 transitions, 657 flow. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:33:54,030 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:33:54,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 54 [2024-10-11 19:33:54,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:33:58,380 INFO L124 PetriNetUnfolderBase]: 28075/41441 cut-off events. [2024-10-11 19:33:58,381 INFO L125 PetriNetUnfolderBase]: For 119426/138009 co-relation queries the response was YES. [2024-10-11 19:33:58,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152827 conditions, 41441 events. 28075/41441 cut-off events. For 119426/138009 co-relation queries the response was YES. Maximal size of possible extension queue 2221. Compared 313502 event pairs, 1862 based on Foata normal form. 3389/43111 useless extension candidates. Maximal degree in co-relation 152792. Up to 13692 conditions per place. [2024-10-11 19:33:58,697 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 97 selfloop transitions, 14 changer transitions 5/151 dead transitions. [2024-10-11 19:33:58,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 151 transitions, 1290 flow [2024-10-11 19:33:58,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:33:58,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 19:33:58,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 217 transitions. [2024-10-11 19:33:58,698 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6697530864197531 [2024-10-11 19:33:58,698 INFO L175 Difference]: Start difference. First operand has 93 places, 81 transitions, 657 flow. Second operand 6 states and 217 transitions. [2024-10-11 19:33:58,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 151 transitions, 1290 flow [2024-10-11 19:33:58,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 151 transitions, 1247 flow, removed 15 selfloop flow, removed 7 redundant places. [2024-10-11 19:33:58,733 INFO L231 Difference]: Finished difference. Result has 89 places, 84 transitions, 684 flow [2024-10-11 19:33:58,733 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=607, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=684, PETRI_PLACES=89, PETRI_TRANSITIONS=84} [2024-10-11 19:33:58,734 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 28 predicate places. [2024-10-11 19:33:58,734 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 84 transitions, 684 flow [2024-10-11 19:33:58,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:33:58,734 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:33:58,734 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:33:58,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 19:33:58,735 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:33:58,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:33:58,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1822220119, now seen corresponding path program 1 times [2024-10-11 19:33:58,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:33:58,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50100576] [2024-10-11 19:33:58,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:33:58,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:33:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:33:59,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:33:59,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:33:59,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50100576] [2024-10-11 19:33:59,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50100576] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:33:59,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:33:59,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:33:59,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736824216] [2024-10-11 19:33:59,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:33:59,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:33:59,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:33:59,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:33:59,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:33:59,037 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 54 [2024-10-11 19:33:59,037 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 84 transitions, 684 flow. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:33:59,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:33:59,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 54 [2024-10-11 19:33:59,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:34:02,800 INFO L124 PetriNetUnfolderBase]: 25067/36977 cut-off events. [2024-10-11 19:34:02,801 INFO L125 PetriNetUnfolderBase]: For 147479/166672 co-relation queries the response was YES. [2024-10-11 19:34:03,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147259 conditions, 36977 events. 25067/36977 cut-off events. For 147479/166672 co-relation queries the response was YES. Maximal size of possible extension queue 2209. Compared 280448 event pairs, 1710 based on Foata normal form. 2557/37847 useless extension candidates. Maximal degree in co-relation 147227. Up to 13692 conditions per place. [2024-10-11 19:34:03,059 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 80 selfloop transitions, 18 changer transitions 11/144 dead transitions. [2024-10-11 19:34:03,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 144 transitions, 1211 flow [2024-10-11 19:34:03,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:34:03,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:34:03,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 236 transitions. [2024-10-11 19:34:03,060 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6243386243386243 [2024-10-11 19:34:03,060 INFO L175 Difference]: Start difference. First operand has 89 places, 84 transitions, 684 flow. Second operand 7 states and 236 transitions. [2024-10-11 19:34:03,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 144 transitions, 1211 flow [2024-10-11 19:34:03,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 144 transitions, 1104 flow, removed 41 selfloop flow, removed 8 redundant places. [2024-10-11 19:34:03,550 INFO L231 Difference]: Finished difference. Result has 89 places, 82 transitions, 627 flow [2024-10-11 19:34:03,551 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=627, PETRI_PLACES=89, PETRI_TRANSITIONS=82} [2024-10-11 19:34:03,551 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 28 predicate places. [2024-10-11 19:34:03,551 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 82 transitions, 627 flow [2024-10-11 19:34:03,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:03,552 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:34:03,552 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:34:03,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 19:34:03,552 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:34:03,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:34:03,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1514265962, now seen corresponding path program 1 times [2024-10-11 19:34:03,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:34:03,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138756591] [2024-10-11 19:34:03,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:34:03,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:34:03,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:34:04,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:34:04,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:34:04,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138756591] [2024-10-11 19:34:04,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138756591] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:34:04,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:34:04,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 19:34:04,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518029415] [2024-10-11 19:34:04,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:34:04,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:34:04,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:34:04,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:34:04,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:34:04,296 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 54 [2024-10-11 19:34:04,296 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 82 transitions, 627 flow. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 7 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) [2024-10-11 19:34:04,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:34:04,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 54 [2024-10-11 19:34:04,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand