./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix007.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/mix007.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 98fb631b7747d0724c093b074b80cf02851c21b4b9e1af2c5f1e3d032d6b592f --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 16:02:52,915 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 16:02:52,972 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-12 16:02:52,977 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 16:02:52,978 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 16:02:52,999 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 16:02:53,000 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 16:02:53,000 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 16:02:53,001 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 16:02:53,001 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 16:02:53,001 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 16:02:53,002 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 16:02:53,002 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 16:02:53,002 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 16:02:53,003 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 16:02:53,003 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 16:02:53,003 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 16:02:53,004 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 16:02:53,004 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 16:02:53,004 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 16:02:53,005 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-12 16:02:53,005 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-12 16:02:53,005 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-12 16:02:53,006 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 16:02:53,006 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-12 16:02:53,006 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 16:02:53,007 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 16:02:53,007 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 16:02:53,007 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 16:02:53,007 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 16:02:53,008 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 16:02:53,008 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 16:02:53,008 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 16:02:53,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:02:53,009 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 16:02:53,009 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 16:02:53,009 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 16:02:53,009 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 16:02:53,010 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 16:02:53,010 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 16:02:53,010 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 16:02:53,011 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 16:02:53,011 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98fb631b7747d0724c093b074b80cf02851c21b4b9e1af2c5f1e3d032d6b592f [2024-11-12 16:02:53,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 16:02:53,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 16:02:53,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 16:02:53,236 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 16:02:53,236 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 16:02:53,237 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix007.opt.i [2024-11-12 16:02:54,568 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 16:02:54,772 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 16:02:54,773 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix007.opt.i [2024-11-12 16:02:54,789 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c682ca870/db6370c113cc4e838171f903009a0f6c/FLAGf28d86dc8 [2024-11-12 16:02:54,801 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c682ca870/db6370c113cc4e838171f903009a0f6c [2024-11-12 16:02:54,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 16:02:54,805 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 16:02:54,806 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 16:02:54,806 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 16:02:54,811 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 16:02:54,812 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:02:54" (1/1) ... [2024-11-12 16:02:54,813 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@608fdfe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:54, skipping insertion in model container [2024-11-12 16:02:54,813 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:02:54" (1/1) ... [2024-11-12 16:02:54,860 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 16:02:55,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:02:55,301 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 16:02:55,368 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:02:55,403 INFO L204 MainTranslator]: Completed translation [2024-11-12 16:02:55,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:55 WrapperNode [2024-11-12 16:02:55,404 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 16:02:55,405 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 16:02:55,406 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 16:02:55,406 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 16:02:55,412 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:55" (1/1) ... [2024-11-12 16:02:55,426 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:55" (1/1) ... [2024-11-12 16:02:55,454 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 155 [2024-11-12 16:02:55,458 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 16:02:55,459 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 16:02:55,459 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 16:02:55,459 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 16:02:55,471 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:55" (1/1) ... [2024-11-12 16:02:55,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:55" (1/1) ... [2024-11-12 16:02:55,474 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:55" (1/1) ... [2024-11-12 16:02:55,496 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-12 16:02:55,496 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:55" (1/1) ... [2024-11-12 16:02:55,496 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:55" (1/1) ... [2024-11-12 16:02:55,511 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:55" (1/1) ... [2024-11-12 16:02:55,517 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:55" (1/1) ... [2024-11-12 16:02:55,518 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:55" (1/1) ... [2024-11-12 16:02:55,523 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:55" (1/1) ... [2024-11-12 16:02:55,526 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 16:02:55,531 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 16:02:55,531 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 16:02:55,531 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 16:02:55,532 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:55" (1/1) ... [2024-11-12 16:02:55,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:02:55,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:02:55,567 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 16:02:55,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 16:02:55,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-12 16:02:55,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 16:02:55,613 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-12 16:02:55,613 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-12 16:02:55,613 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-12 16:02:55,613 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-12 16:02:55,613 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-12 16:02:55,613 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-12 16:02:55,613 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-12 16:02:55,613 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-12 16:02:55,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 16:02:55,615 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-12 16:02:55,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 16:02:55,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 16:02:55,616 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 16:02:55,760 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 16:02:55,762 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 16:02:56,070 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 16:02:56,070 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 16:02:56,290 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 16:02:56,290 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 16:02:56,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:02:56 BoogieIcfgContainer [2024-11-12 16:02:56,291 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 16:02:56,292 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 16:02:56,292 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 16:02:56,295 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 16:02:56,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 04:02:54" (1/3) ... [2024-11-12 16:02:56,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a6c331c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:02:56, skipping insertion in model container [2024-11-12 16:02:56,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:55" (2/3) ... [2024-11-12 16:02:56,296 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a6c331c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:02:56, skipping insertion in model container [2024-11-12 16:02:56,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:02:56" (3/3) ... [2024-11-12 16:02:56,297 INFO L112 eAbstractionObserver]: Analyzing ICFG mix007.opt.i [2024-11-12 16:02:56,310 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 16:02:56,310 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-12 16:02:56,310 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 16:02:56,351 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 16:02:56,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2024-11-12 16:02:56,396 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-11-12 16:02:56,397 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:02:56,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 51 events. 2/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 103 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2024-11-12 16:02:56,401 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2024-11-12 16:02:56,404 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2024-11-12 16:02:56,410 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 16:02:56,419 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;@5570a0a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 16:02:56,419 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-12 16:02:56,426 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 16:02:56,426 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-11-12 16:02:56,426 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:02:56,426 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:02:56,428 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:02:56,428 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:02:56,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:02:56,433 INFO L85 PathProgramCache]: Analyzing trace with hash 448221375, now seen corresponding path program 1 times [2024-11-12 16:02:56,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:02:56,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535749948] [2024-11-12 16:02:56,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:02:56,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:02:56,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:02:56,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:02:56,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:02:56,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535749948] [2024-11-12 16:02:56,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535749948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:02:56,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:02:56,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 16:02:56,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249623886] [2024-11-12 16:02:56,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:02:56,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:02:56,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:02:56,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:02:56,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:02:56,832 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 55 [2024-11-12 16:02:56,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:02:56,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:02:56,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 55 [2024-11-12 16:02:56,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:02:57,340 INFO L124 PetriNetUnfolderBase]: 1175/2003 cut-off events. [2024-11-12 16:02:57,340 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:02:57,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3739 conditions, 2003 events. 1175/2003 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 14325 event pairs, 199 based on Foata normal form. 120/2081 useless extension candidates. Maximal degree in co-relation 3727. Up to 1361 conditions per place. [2024-11-12 16:02:57,359 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 30 selfloop transitions, 2 changer transitions 2/58 dead transitions. [2024-11-12 16:02:57,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 58 transitions, 196 flow [2024-11-12 16:02:57,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:02:57,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:02:57,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 123 transitions. [2024-11-12 16:02:57,368 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7454545454545455 [2024-11-12 16:02:57,370 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 123 transitions. [2024-11-12 16:02:57,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 58 transitions, 196 flow [2024-11-12 16:02:57,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 58 transitions, 192 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-12 16:02:57,377 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-11-12 16:02:57,378 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2024-11-12 16:02:57,383 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2024-11-12 16:02:57,384 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-11-12 16:02:57,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:02:57,384 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:02:57,384 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:02:57,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 16:02:57,384 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:02:57,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:02:57,385 INFO L85 PathProgramCache]: Analyzing trace with hash -984061845, now seen corresponding path program 1 times [2024-11-12 16:02:57,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:02:57,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820679497] [2024-11-12 16:02:57,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:02:57,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:02:57,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:02:57,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:02:57,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:02:57,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820679497] [2024-11-12 16:02:57,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820679497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:02:57,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:02:57,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 16:02:57,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944733830] [2024-11-12 16:02:57,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:02:57,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:02:57,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:02:57,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:02:57,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:02:57,479 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 55 [2024-11-12 16:02:57,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:02:57,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:02:57,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 55 [2024-11-12 16:02:57,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:02:57,814 INFO L124 PetriNetUnfolderBase]: 1027/1867 cut-off events. [2024-11-12 16:02:57,814 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2024-11-12 16:02:57,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3477 conditions, 1867 events. 1027/1867 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 13974 event pairs, 1027 based on Foata normal form. 60/1861 useless extension candidates. Maximal degree in co-relation 3467. Up to 1484 conditions per place. [2024-11-12 16:02:57,823 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 20 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-11-12 16:02:57,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 146 flow [2024-11-12 16:02:57,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:02:57,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:02:57,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2024-11-12 16:02:57,827 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6303030303030303 [2024-11-12 16:02:57,828 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 104 transitions. [2024-11-12 16:02:57,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 146 flow [2024-11-12 16:02:57,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 142 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 16:02:57,831 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-11-12 16:02:57,831 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2024-11-12 16:02:57,832 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-11-12 16:02:57,832 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-11-12 16:02:57,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:02:57,832 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:02:57,832 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:02:57,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 16:02:57,833 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:02:57,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:02:57,835 INFO L85 PathProgramCache]: Analyzing trace with hash -984060592, now seen corresponding path program 1 times [2024-11-12 16:02:57,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:02:57,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680833263] [2024-11-12 16:02:57,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:02:57,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:02:57,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:02:58,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:02:58,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:02:58,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680833263] [2024-11-12 16:02:58,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680833263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:02:58,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:02:58,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 16:02:58,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179074715] [2024-11-12 16:02:58,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:02:58,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 16:02:58,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:02:58,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 16:02:58,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 16:02:58,091 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-12 16:02:58,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:02:58,092 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:02:58,092 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-12 16:02:58,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:03:00,240 INFO L124 PetriNetUnfolderBase]: 13564/20670 cut-off events. [2024-11-12 16:03:00,240 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:03:00,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39479 conditions, 20670 events. 13564/20670 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1224. Compared 159000 event pairs, 3268 based on Foata normal form. 0/20059 useless extension candidates. Maximal degree in co-relation 39473. Up to 8336 conditions per place. [2024-11-12 16:03:00,359 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 43 selfloop transitions, 8 changer transitions 84/151 dead transitions. [2024-11-12 16:03:00,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 151 transitions, 588 flow [2024-11-12 16:03:00,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 16:03:00,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-12 16:03:00,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 326 transitions. [2024-11-12 16:03:00,363 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6585858585858586 [2024-11-12 16:03:00,363 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 9 states and 326 transitions. [2024-11-12 16:03:00,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 151 transitions, 588 flow [2024-11-12 16:03:00,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 151 transitions, 587 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 16:03:00,368 INFO L231 Difference]: Finished difference. Result has 70 places, 50 transitions, 207 flow [2024-11-12 16:03:00,368 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=207, PETRI_PLACES=70, PETRI_TRANSITIONS=50} [2024-11-12 16:03:00,369 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-11-12 16:03:00,370 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 50 transitions, 207 flow [2024-11-12 16:03:00,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:03:00,370 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:03:00,370 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:03:00,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 16:03:00,370 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:03:00,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:03:00,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1933996849, now seen corresponding path program 1 times [2024-11-12 16:03:00,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:03:00,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670619559] [2024-11-12 16:03:00,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:03:00,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:03:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:03:00,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:03:00,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:03:00,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670619559] [2024-11-12 16:03:00,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670619559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:03:00,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:03:00,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 16:03:00,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47159615] [2024-11-12 16:03:00,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:03:00,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 16:03:00,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:03:00,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 16:03:00,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 16:03:00,697 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-12 16:03:00,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 50 transitions, 207 flow. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:03:00,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:03:00,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-12 16:03:00,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:03:02,214 INFO L124 PetriNetUnfolderBase]: 9538/15414 cut-off events. [2024-11-12 16:03:02,215 INFO L125 PetriNetUnfolderBase]: For 22109/22109 co-relation queries the response was YES. [2024-11-12 16:03:02,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46792 conditions, 15414 events. 9538/15414 cut-off events. For 22109/22109 co-relation queries the response was YES. Maximal size of possible extension queue 875. Compared 120533 event pairs, 1728 based on Foata normal form. 420/15746 useless extension candidates. Maximal degree in co-relation 46777. Up to 5580 conditions per place. [2024-11-12 16:03:02,297 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 50 selfloop transitions, 9 changer transitions 76/151 dead transitions. [2024-11-12 16:03:02,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 151 transitions, 1009 flow [2024-11-12 16:03:02,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 16:03:02,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-12 16:03:02,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 332 transitions. [2024-11-12 16:03:02,298 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6036363636363636 [2024-11-12 16:03:02,298 INFO L175 Difference]: Start difference. First operand has 70 places, 50 transitions, 207 flow. Second operand 10 states and 332 transitions. [2024-11-12 16:03:02,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 151 transitions, 1009 flow [2024-11-12 16:03:02,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 151 transitions, 859 flow, removed 38 selfloop flow, removed 4 redundant places. [2024-11-12 16:03:02,358 INFO L231 Difference]: Finished difference. Result has 77 places, 55 transitions, 273 flow [2024-11-12 16:03:02,359 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=273, PETRI_PLACES=77, PETRI_TRANSITIONS=55} [2024-11-12 16:03:02,359 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 15 predicate places. [2024-11-12 16:03:02,359 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 55 transitions, 273 flow [2024-11-12 16:03:02,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:03:02,360 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:03:02,360 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:03:02,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 16:03:02,360 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:03:02,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:03:02,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1190777921, now seen corresponding path program 1 times [2024-11-12 16:03:02,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:03:02,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822298905] [2024-11-12 16:03:02,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:03:02,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:03:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:03:02,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:03:02,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:03:02,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822298905] [2024-11-12 16:03:02,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822298905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:03:02,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:03:02,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 16:03:02,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805535558] [2024-11-12 16:03:02,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:03:02,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 16:03:02,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:03:02,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 16:03:02,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 16:03:02,544 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-12 16:03:02,544 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 55 transitions, 273 flow. Second operand has 6 states, 6 states have (on average 23.666666666666668) internal successors, (142), 6 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:03:02,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:03:02,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-12 16:03:02,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:03:04,234 INFO L124 PetriNetUnfolderBase]: 8551/13942 cut-off events. [2024-11-12 16:03:04,234 INFO L125 PetriNetUnfolderBase]: For 26379/26379 co-relation queries the response was YES. [2024-11-12 16:03:04,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44392 conditions, 13942 events. 8551/13942 cut-off events. For 26379/26379 co-relation queries the response was YES. Maximal size of possible extension queue 778. Compared 108407 event pairs, 1105 based on Foata normal form. 298/14162 useless extension candidates. Maximal degree in co-relation 44370. Up to 6747 conditions per place. [2024-11-12 16:03:04,323 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 56 selfloop transitions, 18 changer transitions 60/150 dead transitions. [2024-11-12 16:03:04,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 150 transitions, 1027 flow [2024-11-12 16:03:04,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 16:03:04,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-12 16:03:04,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 337 transitions. [2024-11-12 16:03:04,325 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6127272727272727 [2024-11-12 16:03:04,325 INFO L175 Difference]: Start difference. First operand has 77 places, 55 transitions, 273 flow. Second operand 10 states and 337 transitions. [2024-11-12 16:03:04,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 150 transitions, 1027 flow [2024-11-12 16:03:04,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 150 transitions, 976 flow, removed 23 selfloop flow, removed 5 redundant places. [2024-11-12 16:03:04,442 INFO L231 Difference]: Finished difference. Result has 83 places, 61 transitions, 388 flow [2024-11-12 16:03:04,442 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=388, PETRI_PLACES=83, PETRI_TRANSITIONS=61} [2024-11-12 16:03:04,443 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 21 predicate places. [2024-11-12 16:03:04,443 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 61 transitions, 388 flow [2024-11-12 16:03:04,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.666666666666668) internal successors, (142), 6 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:03:04,443 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:03:04,443 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:03:04,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 16:03:04,444 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:03:04,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:03:04,444 INFO L85 PathProgramCache]: Analyzing trace with hash -405252680, now seen corresponding path program 1 times [2024-11-12 16:03:04,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:03:04,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564212124] [2024-11-12 16:03:04,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:03:04,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:03:04,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:03:04,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:03:04,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:03:04,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564212124] [2024-11-12 16:03:04,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564212124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:03:04,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:03:04,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 16:03:04,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855531471] [2024-11-12 16:03:04,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:03:04,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 16:03:04,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:03:04,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 16:03:04,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 16:03:04,665 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-12 16:03:04,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 61 transitions, 388 flow. Second operand has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:03:04,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:03:04,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-12 16:03:04,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:03:06,135 INFO L124 PetriNetUnfolderBase]: 7696/12790 cut-off events. [2024-11-12 16:03:06,135 INFO L125 PetriNetUnfolderBase]: For 33614/33614 co-relation queries the response was YES. [2024-11-12 16:03:06,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43865 conditions, 12790 events. 7696/12790 cut-off events. For 33614/33614 co-relation queries the response was YES. Maximal size of possible extension queue 688. Compared 100617 event pairs, 1443 based on Foata normal form. 264/12978 useless extension candidates. Maximal degree in co-relation 43838. Up to 4402 conditions per place. [2024-11-12 16:03:06,235 INFO L140 encePairwiseOnDemand]: 45/55 looper letters, 65 selfloop transitions, 12 changer transitions 62/155 dead transitions. [2024-11-12 16:03:06,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 155 transitions, 1222 flow [2024-11-12 16:03:06,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 16:03:06,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-12 16:03:06,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 327 transitions. [2024-11-12 16:03:06,237 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5945454545454546 [2024-11-12 16:03:06,237 INFO L175 Difference]: Start difference. First operand has 83 places, 61 transitions, 388 flow. Second operand 10 states and 327 transitions. [2024-11-12 16:03:06,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 155 transitions, 1222 flow [2024-11-12 16:03:06,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 155 transitions, 1128 flow, removed 47 selfloop flow, removed 10 redundant places. [2024-11-12 16:03:06,479 INFO L231 Difference]: Finished difference. Result has 85 places, 67 transitions, 487 flow [2024-11-12 16:03:06,480 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=487, PETRI_PLACES=85, PETRI_TRANSITIONS=67} [2024-11-12 16:03:06,481 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 23 predicate places. [2024-11-12 16:03:06,482 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 67 transitions, 487 flow [2024-11-12 16:03:06,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:03:06,482 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:03:06,483 INFO L206 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] [2024-11-12 16:03:06,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 16:03:06,483 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:03:06,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:03:06,483 INFO L85 PathProgramCache]: Analyzing trace with hash 479078517, now seen corresponding path program 1 times [2024-11-12 16:03:06,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:03:06,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793922230] [2024-11-12 16:03:06,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:03:06,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:03:06,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:03:06,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:03:06,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:03:06,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793922230] [2024-11-12 16:03:06,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793922230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:03:06,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:03:06,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 16:03:06,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660570602] [2024-11-12 16:03:06,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:03:06,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 16:03:06,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:03:06,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 16:03:06,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 16:03:06,707 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-12 16:03:06,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 67 transitions, 487 flow. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:03:06,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:03:06,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-12 16:03:06,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:03:09,229 INFO L124 PetriNetUnfolderBase]: 15648/23625 cut-off events. [2024-11-12 16:03:09,230 INFO L125 PetriNetUnfolderBase]: For 40241/45077 co-relation queries the response was YES. [2024-11-12 16:03:09,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66771 conditions, 23625 events. 15648/23625 cut-off events. For 40241/45077 co-relation queries the response was YES. Maximal size of possible extension queue 1233. Compared 173407 event pairs, 2416 based on Foata normal form. 1117/23705 useless extension candidates. Maximal degree in co-relation 66743. Up to 12605 conditions per place. [2024-11-12 16:03:09,449 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 61 selfloop transitions, 6 changer transitions 0/103 dead transitions. [2024-11-12 16:03:09,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 103 transitions, 821 flow [2024-11-12 16:03:09,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 16:03:09,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 16:03:09,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 148 transitions. [2024-11-12 16:03:09,451 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6727272727272727 [2024-11-12 16:03:09,451 INFO L175 Difference]: Start difference. First operand has 85 places, 67 transitions, 487 flow. Second operand 4 states and 148 transitions. [2024-11-12 16:03:09,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 103 transitions, 821 flow [2024-11-12 16:03:09,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 103 transitions, 803 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-12 16:03:09,596 INFO L231 Difference]: Finished difference. Result has 81 places, 72 transitions, 515 flow [2024-11-12 16:03:09,596 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=515, PETRI_PLACES=81, PETRI_TRANSITIONS=72} [2024-11-12 16:03:09,597 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 19 predicate places. [2024-11-12 16:03:09,597 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 72 transitions, 515 flow [2024-11-12 16:03:09,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:03:09,597 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:03:09,597 INFO L206 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] [2024-11-12 16:03:09,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 16:03:09,598 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:03:09,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:03:09,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1728763450, now seen corresponding path program 1 times [2024-11-12 16:03:09,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:03:09,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914453461] [2024-11-12 16:03:09,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:03:09,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:03:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:03:09,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:03:09,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:03:09,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914453461] [2024-11-12 16:03:09,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914453461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:03:09,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:03:09,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 16:03:09,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157574088] [2024-11-12 16:03:09,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:03:09,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 16:03:09,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:03:09,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 16:03:09,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 16:03:09,780 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-12 16:03:09,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 72 transitions, 515 flow. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:03:09,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:03:09,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-12 16:03:09,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:03:11,843 INFO L124 PetriNetUnfolderBase]: 13655/20896 cut-off events. [2024-11-12 16:03:11,843 INFO L125 PetriNetUnfolderBase]: For 33530/38249 co-relation queries the response was YES. [2024-11-12 16:03:11,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63945 conditions, 20896 events. 13655/20896 cut-off events. For 33530/38249 co-relation queries the response was YES. Maximal size of possible extension queue 1066. Compared 151319 event pairs, 1165 based on Foata normal form. 1140/21256 useless extension candidates. Maximal degree in co-relation 63916. Up to 8164 conditions per place. [2024-11-12 16:03:12,021 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 79 selfloop transitions, 10 changer transitions 0/125 dead transitions. [2024-11-12 16:03:12,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 125 transitions, 1011 flow [2024-11-12 16:03:12,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 16:03:12,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 16:03:12,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 189 transitions. [2024-11-12 16:03:12,023 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6872727272727273 [2024-11-12 16:03:12,023 INFO L175 Difference]: Start difference. First operand has 81 places, 72 transitions, 515 flow. Second operand 5 states and 189 transitions. [2024-11-12 16:03:12,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 125 transitions, 1011 flow [2024-11-12 16:03:12,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 125 transitions, 996 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-11-12 16:03:12,043 INFO L231 Difference]: Finished difference. Result has 82 places, 77 transitions, 568 flow [2024-11-12 16:03:12,044 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=501, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=568, PETRI_PLACES=82, PETRI_TRANSITIONS=77} [2024-11-12 16:03:12,044 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 20 predicate places. [2024-11-12 16:03:12,044 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 77 transitions, 568 flow [2024-11-12 16:03:12,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:03:12,045 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:03:12,045 INFO L206 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] [2024-11-12 16:03:12,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 16:03:12,045 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:03:12,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:03:12,046 INFO L85 PathProgramCache]: Analyzing trace with hash -2023713651, now seen corresponding path program 1 times [2024-11-12 16:03:12,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:03:12,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463936758] [2024-11-12 16:03:12,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:03:12,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:03:12,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:03:12,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:03:12,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:03:12,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463936758] [2024-11-12 16:03:12,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463936758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:03:12,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:03:12,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 16:03:12,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358108405] [2024-11-12 16:03:12,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:03:12,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 16:03:12,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:03:12,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 16:03:12,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-12 16:03:12,366 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-12 16:03:12,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 77 transitions, 568 flow. Second operand has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:03:12,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:03:12,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-12 16:03:12,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:03:14,313 INFO L124 PetriNetUnfolderBase]: 10863/16664 cut-off events. [2024-11-12 16:03:14,313 INFO L125 PetriNetUnfolderBase]: For 39897/45568 co-relation queries the response was YES. [2024-11-12 16:03:14,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57927 conditions, 16664 events. 10863/16664 cut-off events. For 39897/45568 co-relation queries the response was YES. Maximal size of possible extension queue 924. Compared 116805 event pairs, 651 based on Foata normal form. 969/16984 useless extension candidates. Maximal degree in co-relation 57899. Up to 5684 conditions per place. [2024-11-12 16:03:14,480 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 91 selfloop transitions, 14 changer transitions 0/141 dead transitions. [2024-11-12 16:03:14,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 141 transitions, 1157 flow [2024-11-12 16:03:14,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 16:03:14,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 16:03:14,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 228 transitions. [2024-11-12 16:03:14,482 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6909090909090909 [2024-11-12 16:03:14,482 INFO L175 Difference]: Start difference. First operand has 82 places, 77 transitions, 568 flow. Second operand 6 states and 228 transitions. [2024-11-12 16:03:14,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 141 transitions, 1157 flow [2024-11-12 16:03:14,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 141 transitions, 1141 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-12 16:03:14,504 INFO L231 Difference]: Finished difference. Result has 87 places, 82 transitions, 638 flow [2024-11-12 16:03:14,504 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=553, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=638, PETRI_PLACES=87, PETRI_TRANSITIONS=82} [2024-11-12 16:03:14,504 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 25 predicate places. [2024-11-12 16:03:14,505 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 82 transitions, 638 flow [2024-11-12 16:03:14,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:03:14,505 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:03:14,505 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:03:14,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 16:03:14,505 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:03:14,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:03:14,506 INFO L85 PathProgramCache]: Analyzing trace with hash -15178730, now seen corresponding path program 1 times [2024-11-12 16:03:14,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:03:14,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361407744] [2024-11-12 16:03:14,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:03:14,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:03:14,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:03:14,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:03:14,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:03:14,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361407744] [2024-11-12 16:03:14,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361407744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:03:14,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:03:14,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 16:03:14,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090385984] [2024-11-12 16:03:14,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:03:14,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 16:03:14,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:03:14,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 16:03:14,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 16:03:14,763 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-11-12 16:03:14,763 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 82 transitions, 638 flow. Second operand has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:03:14,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:03:14,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-11-12 16:03:14,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:03:16,344 INFO L124 PetriNetUnfolderBase]: 9891/17853 cut-off events. [2024-11-12 16:03:16,344 INFO L125 PetriNetUnfolderBase]: For 42343/46695 co-relation queries the response was YES. [2024-11-12 16:03:16,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58336 conditions, 17853 events. 9891/17853 cut-off events. For 42343/46695 co-relation queries the response was YES. Maximal size of possible extension queue 1128. Compared 158734 event pairs, 3701 based on Foata normal form. 580/16389 useless extension candidates. Maximal degree in co-relation 58306. Up to 7076 conditions per place. [2024-11-12 16:03:16,544 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 66 selfloop transitions, 4 changer transitions 14/135 dead transitions. [2024-11-12 16:03:16,544 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 135 transitions, 1093 flow [2024-11-12 16:03:16,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 16:03:16,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 16:03:16,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 214 transitions. [2024-11-12 16:03:16,545 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6484848484848484 [2024-11-12 16:03:16,545 INFO L175 Difference]: Start difference. First operand has 87 places, 82 transitions, 638 flow. Second operand 6 states and 214 transitions. [2024-11-12 16:03:16,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 135 transitions, 1093 flow [2024-11-12 16:03:16,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 135 transitions, 1062 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-11-12 16:03:16,697 INFO L231 Difference]: Finished difference. Result has 93 places, 85 transitions, 670 flow [2024-11-12 16:03:16,697 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=607, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=670, PETRI_PLACES=93, PETRI_TRANSITIONS=85} [2024-11-12 16:03:16,698 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 31 predicate places. [2024-11-12 16:03:16,698 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 85 transitions, 670 flow [2024-11-12 16:03:16,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:03:16,698 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:03:16,698 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:03:16,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 16:03:16,699 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:03:16,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:03:16,699 INFO L85 PathProgramCache]: Analyzing trace with hash -413586654, now seen corresponding path program 2 times [2024-11-12 16:03:16,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:03:16,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980857352] [2024-11-12 16:03:16,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:03:16,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:03:16,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:03:18,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:03:18,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:03:18,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980857352] [2024-11-12 16:03:18,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980857352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:03:18,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:03:18,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-12 16:03:18,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462761952] [2024-11-12 16:03:18,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:03:18,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-12 16:03:18,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:03:18,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-12 16:03:18,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-12 16:03:18,198 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 55 [2024-11-12 16:03:18,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 85 transitions, 670 flow. Second operand has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:03:18,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:03:18,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 55 [2024-11-12 16:03:18,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:03:20,922 INFO L124 PetriNetUnfolderBase]: 13872/25937 cut-off events. [2024-11-12 16:03:20,923 INFO L125 PetriNetUnfolderBase]: For 43232/47423 co-relation queries the response was YES. [2024-11-12 16:03:21,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79182 conditions, 25937 events. 13872/25937 cut-off events. For 43232/47423 co-relation queries the response was YES. Maximal size of possible extension queue 1863. Compared 257521 event pairs, 3533 based on Foata normal form. 714/24065 useless extension candidates. Maximal degree in co-relation 79149. Up to 6787 conditions per place. [2024-11-12 16:03:21,317 INFO L140 encePairwiseOnDemand]: 46/55 looper letters, 58 selfloop transitions, 19 changer transitions 11/146 dead transitions. [2024-11-12 16:03:21,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 146 transitions, 1133 flow [2024-11-12 16:03:21,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-12 16:03:21,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-12 16:03:21,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 365 transitions. [2024-11-12 16:03:21,319 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6033057851239669 [2024-11-12 16:03:21,319 INFO L175 Difference]: Start difference. First operand has 93 places, 85 transitions, 670 flow. Second operand 11 states and 365 transitions. [2024-11-12 16:03:21,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 146 transitions, 1133 flow [2024-11-12 16:03:21,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 146 transitions, 1126 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-11-12 16:03:21,545 INFO L231 Difference]: Finished difference. Result has 104 places, 101 transitions, 864 flow [2024-11-12 16:03:21,545 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=665, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=864, PETRI_PLACES=104, PETRI_TRANSITIONS=101} [2024-11-12 16:03:21,546 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 42 predicate places. [2024-11-12 16:03:21,546 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 101 transitions, 864 flow [2024-11-12 16:03:21,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:03:21,546 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:03:21,546 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:03:21,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-12 16:03:21,547 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:03:21,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:03:21,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1674429700, now seen corresponding path program 3 times [2024-11-12 16:03:21,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:03:21,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031745296] [2024-11-12 16:03:21,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:03:21,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:03:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:03:21,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:03:21,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:03:21,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031745296] [2024-11-12 16:03:21,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031745296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:03:21,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:03:21,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 16:03:21,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213211442] [2024-11-12 16:03:21,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:03:21,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 16:03:21,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:03:21,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 16:03:21,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-12 16:03:21,806 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-12 16:03:21,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 101 transitions, 864 flow. Second operand has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:03:21,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:03:21,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-12 16:03:21,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:03:25,758 INFO L124 PetriNetUnfolderBase]: 26082/39827 cut-off events. [2024-11-12 16:03:25,758 INFO L125 PetriNetUnfolderBase]: For 114906/126408 co-relation queries the response was YES. [2024-11-12 16:03:26,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143976 conditions, 39827 events. 26082/39827 cut-off events. For 114906/126408 co-relation queries the response was YES. Maximal size of possible extension queue 2786. Compared 325241 event pairs, 1329 based on Foata normal form. 1662/40181 useless extension candidates. Maximal degree in co-relation 143938. Up to 14124 conditions per place. [2024-11-12 16:03:26,640 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 98 selfloop transitions, 18 changer transitions 23/178 dead transitions. [2024-11-12 16:03:26,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 178 transitions, 1776 flow [2024-11-12 16:03:26,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 16:03:26,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-12 16:03:26,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 249 transitions. [2024-11-12 16:03:26,642 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6467532467532467 [2024-11-12 16:03:26,642 INFO L175 Difference]: Start difference. First operand has 104 places, 101 transitions, 864 flow. Second operand 7 states and 249 transitions. [2024-11-12 16:03:26,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 178 transitions, 1776 flow [2024-11-12 16:03:27,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 178 transitions, 1733 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-12 16:03:27,207 INFO L231 Difference]: Finished difference. Result has 106 places, 96 transitions, 849 flow [2024-11-12 16:03:27,208 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=820, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=849, PETRI_PLACES=106, PETRI_TRANSITIONS=96} [2024-11-12 16:03:27,210 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 44 predicate places. [2024-11-12 16:03:27,210 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 96 transitions, 849 flow [2024-11-12 16:03:27,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:03:27,210 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:03:27,211 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:03:27,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-12 16:03:27,211 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:03:27,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:03:27,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1919413517, now seen corresponding path program 1 times [2024-11-12 16:03:27,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:03:27,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366589502] [2024-11-12 16:03:27,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:03:27,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:03:27,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:03:27,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:03:27,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:03:27,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366589502] [2024-11-12 16:03:27,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366589502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:03:27,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:03:27,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 16:03:27,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083540724] [2024-11-12 16:03:27,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:03:27,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 16:03:27,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:03:27,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 16:03:27,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 16:03:27,857 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-11-12 16:03:27,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 96 transitions, 849 flow. Second operand has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:03:27,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:03:27,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-11-12 16:03:27,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:03:31,565 INFO L124 PetriNetUnfolderBase]: 18982/36056 cut-off events. [2024-11-12 16:03:31,566 INFO L125 PetriNetUnfolderBase]: For 116709/124216 co-relation queries the response was YES. [2024-11-12 16:03:31,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126881 conditions, 36056 events. 18982/36056 cut-off events. For 116709/124216 co-relation queries the response was YES. Maximal size of possible extension queue 2831. Compared 382585 event pairs, 6613 based on Foata normal form. 466/32205 useless extension candidates. Maximal degree in co-relation 126843. Up to 10688 conditions per place. [2024-11-12 16:03:31,923 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 36 selfloop transitions, 2 changer transitions 68/156 dead transitions. [2024-11-12 16:03:31,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 156 transitions, 1464 flow [2024-11-12 16:03:31,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 16:03:31,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 16:03:31,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 207 transitions. [2024-11-12 16:03:31,924 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6272727272727273 [2024-11-12 16:03:31,924 INFO L175 Difference]: Start difference. First operand has 106 places, 96 transitions, 849 flow. Second operand 6 states and 207 transitions. [2024-11-12 16:03:31,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 156 transitions, 1464 flow