./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_4-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_4-container_of.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 23:31:07,537 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 23:31:07,615 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-24 23:31:07,622 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 23:31:07,623 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 23:31:07,652 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 23:31:07,653 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 23:31:07,654 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 23:31:07,654 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 23:31:07,656 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 23:31:07,657 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 23:31:07,657 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 23:31:07,657 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 23:31:07,658 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 23:31:07,659 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 23:31:07,660 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 23:31:07,660 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 23:31:07,661 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 23:31:07,661 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 23:31:07,661 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 23:31:07,661 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 23:31:07,662 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 23:31:07,663 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 23:31:07,663 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 23:31:07,663 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 23:31:07,663 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 23:31:07,664 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 23:31:07,664 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 23:31:07,664 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 23:31:07,665 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 23:31:07,665 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 23:31:07,666 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 23:31:07,666 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 23:31:07,666 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 23:31:07,667 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 23:31:07,667 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 23:31:07,667 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 23:31:07,667 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 23:31:07,667 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 23:31:07,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 23:31:07,668 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 23:31:07,668 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 23:31:07,668 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 23:31:07,669 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 23:31:07,669 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 [2024-10-24 23:31:07,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 23:31:07,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 23:31:07,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 23:31:07,960 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 23:31:07,960 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 23:31:07,962 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2024-10-24 23:31:09,416 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 23:31:09,733 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 23:31:09,734 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2024-10-24 23:31:09,775 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/867496fa8/bb603b50523941bc8138ca9801001f0a/FLAGa14d4424b [2024-10-24 23:31:09,793 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/867496fa8/bb603b50523941bc8138ca9801001f0a [2024-10-24 23:31:09,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 23:31:09,797 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 23:31:09,800 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 23:31:09,800 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 23:31:09,805 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 23:31:09,806 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:31:09" (1/1) ... [2024-10-24 23:31:09,807 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@779da684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:31:09, skipping insertion in model container [2024-10-24 23:31:09,807 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:31:09" (1/1) ... [2024-10-24 23:31:09,901 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 23:31:10,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:31:10,345 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 23:31:10,402 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:31:10,454 INFO L204 MainTranslator]: Completed translation [2024-10-24 23:31:10,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:31:10 WrapperNode [2024-10-24 23:31:10,454 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 23:31:10,455 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 23:31:10,456 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 23:31:10,456 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 23:31:10,463 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:31:10" (1/1) ... [2024-10-24 23:31:10,485 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:31:10" (1/1) ... [2024-10-24 23:31:10,514 INFO L138 Inliner]: procedures = 248, calls = 56, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 154 [2024-10-24 23:31:10,515 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 23:31:10,515 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 23:31:10,515 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 23:31:10,516 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 23:31:10,526 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:31:10" (1/1) ... [2024-10-24 23:31:10,527 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:31:10" (1/1) ... [2024-10-24 23:31:10,532 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:31:10" (1/1) ... [2024-10-24 23:31:10,559 INFO L175 MemorySlicer]: Split 19 memory accesses to 3 slices as follows [2, 2, 15]. 79 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 10 writes are split as follows [0, 2, 8]. [2024-10-24 23:31:10,561 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:31:10" (1/1) ... [2024-10-24 23:31:10,562 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:31:10" (1/1) ... [2024-10-24 23:31:10,576 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:31:10" (1/1) ... [2024-10-24 23:31:10,578 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:31:10" (1/1) ... [2024-10-24 23:31:10,583 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:31:10" (1/1) ... [2024-10-24 23:31:10,585 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:31:10" (1/1) ... [2024-10-24 23:31:10,590 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 23:31:10,591 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 23:31:10,592 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 23:31:10,592 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 23:31:10,593 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:31:10" (1/1) ... [2024-10-24 23:31:10,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 23:31:10,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:31:10,646 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) [2024-10-24 23:31:10,649 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 [2024-10-24 23:31:10,701 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-10-24 23:31:10,702 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-10-24 23:31:10,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 23:31:10,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 23:31:10,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 23:31:10,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 23:31:10,703 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-24 23:31:10,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 23:31:10,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 23:31:10,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-24 23:31:10,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 23:31:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 23:31:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-24 23:31:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-24 23:31:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 23:31:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-24 23:31:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-24 23:31:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-24 23:31:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 23:31:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 23:31:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 23:31:10,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 23:31:10,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 23:31:10,707 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 23:31:10,997 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 23:31:11,000 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 23:31:11,306 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 23:31:11,307 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 23:31:11,482 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 23:31:11,484 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 23:31:11,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:31:11 BoogieIcfgContainer [2024-10-24 23:31:11,485 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 23:31:11,487 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 23:31:11,488 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 23:31:11,492 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 23:31:11,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:31:09" (1/3) ... [2024-10-24 23:31:11,493 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68e0b3c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:31:11, skipping insertion in model container [2024-10-24 23:31:11,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:31:10" (2/3) ... [2024-10-24 23:31:11,493 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68e0b3c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:31:11, skipping insertion in model container [2024-10-24 23:31:11,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:31:11" (3/3) ... [2024-10-24 23:31:11,495 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2024-10-24 23:31:11,511 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 23:31:11,512 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 23:31:11,512 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 23:31:11,570 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-24 23:31:11,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 44 transitions, 102 flow [2024-10-24 23:31:11,650 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-10-24 23:31:11,651 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-24 23:31:11,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 51 events. 2/51 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 120 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 28. Up to 3 conditions per place. [2024-10-24 23:31:11,653 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 44 transitions, 102 flow [2024-10-24 23:31:11,658 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 38 transitions, 85 flow [2024-10-24 23:31:11,671 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 23:31:11,681 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=LoopHeads, 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;@73d56581, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 23:31:11,681 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-24 23:31:11,692 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 23:31:11,693 INFO L124 PetriNetUnfolderBase]: 0/21 cut-off events. [2024-10-24 23:31:11,693 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 23:31:11,693 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:31:11,694 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:31:11,695 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-24 23:31:11,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:31:11,700 INFO L85 PathProgramCache]: Analyzing trace with hash -85911709, now seen corresponding path program 1 times [2024-10-24 23:31:11,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:31:11,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054165669] [2024-10-24 23:31:11,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:31:11,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:31:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:31:12,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:31:12,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:31:12,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054165669] [2024-10-24 23:31:12,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054165669] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:31:12,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:31:12,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 23:31:12,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924750206] [2024-10-24 23:31:12,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:31:12,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 23:31:12,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:31:12,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 23:31:12,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 23:31:12,891 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-24 23:31:12,894 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 38 transitions, 85 flow. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:12,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:31:12,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-24 23:31:12,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:31:13,772 INFO L124 PetriNetUnfolderBase]: 2221/3630 cut-off events. [2024-10-24 23:31:13,774 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-10-24 23:31:13,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7280 conditions, 3630 events. 2221/3630 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 20052 event pairs, 1170 based on Foata normal form. 0/3166 useless extension candidates. Maximal degree in co-relation 7188. Up to 2402 conditions per place. [2024-10-24 23:31:13,806 INFO L140 encePairwiseOnDemand]: 32/44 looper letters, 85 selfloop transitions, 24 changer transitions 3/115 dead transitions. [2024-10-24 23:31:13,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 115 transitions, 478 flow [2024-10-24 23:31:13,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 23:31:13,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-24 23:31:13,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 176 transitions. [2024-10-24 23:31:13,821 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4 [2024-10-24 23:31:13,823 INFO L175 Difference]: Start difference. First operand has 45 places, 38 transitions, 85 flow. Second operand 10 states and 176 transitions. [2024-10-24 23:31:13,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 115 transitions, 478 flow [2024-10-24 23:31:13,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 115 transitions, 467 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-24 23:31:13,838 INFO L231 Difference]: Finished difference. Result has 56 places, 63 transitions, 233 flow [2024-10-24 23:31:13,842 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=233, PETRI_PLACES=56, PETRI_TRANSITIONS=63} [2024-10-24 23:31:13,847 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 11 predicate places. [2024-10-24 23:31:13,848 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 63 transitions, 233 flow [2024-10-24 23:31:13,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:13,849 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:31:13,849 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:31:13,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 23:31:13,850 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-24 23:31:13,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:31:13,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1647241241, now seen corresponding path program 1 times [2024-10-24 23:31:13,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:31:13,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946720127] [2024-10-24 23:31:13,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:31:13,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:31:13,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:31:14,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:31:14,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:31:14,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946720127] [2024-10-24 23:31:14,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946720127] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:31:14,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:31:14,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 23:31:14,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676059232] [2024-10-24 23:31:14,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:31:14,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 23:31:14,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:31:14,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 23:31:14,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 23:31:14,236 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-24 23:31:14,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 63 transitions, 233 flow. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:14,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:31:14,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-24 23:31:14,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:31:14,980 INFO L124 PetriNetUnfolderBase]: 2697/4445 cut-off events. [2024-10-24 23:31:14,981 INFO L125 PetriNetUnfolderBase]: For 1572/1574 co-relation queries the response was YES. [2024-10-24 23:31:14,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10778 conditions, 4445 events. 2697/4445 cut-off events. For 1572/1574 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 26189 event pairs, 1670 based on Foata normal form. 2/4055 useless extension candidates. Maximal degree in co-relation 9198. Up to 3258 conditions per place. [2024-10-24 23:31:15,006 INFO L140 encePairwiseOnDemand]: 32/44 looper letters, 90 selfloop transitions, 33 changer transitions 5/131 dead transitions. [2024-10-24 23:31:15,007 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 131 transitions, 711 flow [2024-10-24 23:31:15,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 23:31:15,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-24 23:31:15,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 173 transitions. [2024-10-24 23:31:15,009 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3931818181818182 [2024-10-24 23:31:15,009 INFO L175 Difference]: Start difference. First operand has 56 places, 63 transitions, 233 flow. Second operand 10 states and 173 transitions. [2024-10-24 23:31:15,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 131 transitions, 711 flow [2024-10-24 23:31:15,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 131 transitions, 709 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 23:31:15,022 INFO L231 Difference]: Finished difference. Result has 68 places, 83 transitions, 424 flow [2024-10-24 23:31:15,023 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=424, PETRI_PLACES=68, PETRI_TRANSITIONS=83} [2024-10-24 23:31:15,023 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 23 predicate places. [2024-10-24 23:31:15,023 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 83 transitions, 424 flow [2024-10-24 23:31:15,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:15,025 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:31:15,025 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:31:15,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 23:31:15,027 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-24 23:31:15,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:31:15,028 INFO L85 PathProgramCache]: Analyzing trace with hash 575639303, now seen corresponding path program 1 times [2024-10-24 23:31:15,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:31:15,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89458817] [2024-10-24 23:31:15,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:31:15,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:31:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:31:15,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:31:15,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:31:15,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89458817] [2024-10-24 23:31:15,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89458817] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:31:15,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:31:15,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 23:31:15,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138039153] [2024-10-24 23:31:15,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:31:15,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 23:31:15,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:31:15,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 23:31:15,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-24 23:31:15,577 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-24 23:31:15,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 83 transitions, 424 flow. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:15,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:31:15,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-24 23:31:15,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:31:16,546 INFO L124 PetriNetUnfolderBase]: 2901/4906 cut-off events. [2024-10-24 23:31:16,546 INFO L125 PetriNetUnfolderBase]: For 3743/3751 co-relation queries the response was YES. [2024-10-24 23:31:16,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13634 conditions, 4906 events. 2901/4906 cut-off events. For 3743/3751 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 30927 event pairs, 754 based on Foata normal form. 72/4702 useless extension candidates. Maximal degree in co-relation 12619. Up to 3792 conditions per place. [2024-10-24 23:31:16,582 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 171 selfloop transitions, 30 changer transitions 3/207 dead transitions. [2024-10-24 23:31:16,583 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 207 transitions, 1410 flow [2024-10-24 23:31:16,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 23:31:16,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-24 23:31:16,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 185 transitions. [2024-10-24 23:31:16,587 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42045454545454547 [2024-10-24 23:31:16,587 INFO L175 Difference]: Start difference. First operand has 68 places, 83 transitions, 424 flow. Second operand 10 states and 185 transitions. [2024-10-24 23:31:16,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 207 transitions, 1410 flow [2024-10-24 23:31:16,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 207 transitions, 1410 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 23:31:16,618 INFO L231 Difference]: Finished difference. Result has 84 places, 105 transitions, 653 flow [2024-10-24 23:31:16,620 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=653, PETRI_PLACES=84, PETRI_TRANSITIONS=105} [2024-10-24 23:31:16,621 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 39 predicate places. [2024-10-24 23:31:16,621 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 105 transitions, 653 flow [2024-10-24 23:31:16,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:16,622 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:31:16,622 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:31:16,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 23:31:16,622 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-24 23:31:16,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:31:16,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1478388345, now seen corresponding path program 2 times [2024-10-24 23:31:16,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:31:16,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354085608] [2024-10-24 23:31:16,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:31:16,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:31:16,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:31:17,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:31:17,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:31:17,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354085608] [2024-10-24 23:31:17,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354085608] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:31:17,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:31:17,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 23:31:17,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018156590] [2024-10-24 23:31:17,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:31:17,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 23:31:17,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:31:17,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 23:31:17,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 23:31:17,238 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-24 23:31:17,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 105 transitions, 653 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:17,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:31:17,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-24 23:31:17,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:31:19,114 INFO L124 PetriNetUnfolderBase]: 3734/6225 cut-off events. [2024-10-24 23:31:19,115 INFO L125 PetriNetUnfolderBase]: For 7933/7941 co-relation queries the response was YES. [2024-10-24 23:31:19,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19648 conditions, 6225 events. 3734/6225 cut-off events. For 7933/7941 co-relation queries the response was YES. Maximal size of possible extension queue 287. Compared 39320 event pairs, 1744 based on Foata normal form. 118/6017 useless extension candidates. Maximal degree in co-relation 18358. Up to 3418 conditions per place. [2024-10-24 23:31:19,177 INFO L140 encePairwiseOnDemand]: 29/44 looper letters, 149 selfloop transitions, 97 changer transitions 5/254 dead transitions. [2024-10-24 23:31:19,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 254 transitions, 2000 flow [2024-10-24 23:31:19,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-24 23:31:19,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-10-24 23:31:19,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 323 transitions. [2024-10-24 23:31:19,180 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.33367768595041325 [2024-10-24 23:31:19,180 INFO L175 Difference]: Start difference. First operand has 84 places, 105 transitions, 653 flow. Second operand 22 states and 323 transitions. [2024-10-24 23:31:19,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 254 transitions, 2000 flow [2024-10-24 23:31:19,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 254 transitions, 1958 flow, removed 20 selfloop flow, removed 1 redundant places. [2024-10-24 23:31:19,225 INFO L231 Difference]: Finished difference. Result has 113 places, 156 transitions, 1320 flow [2024-10-24 23:31:19,226 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=641, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1320, PETRI_PLACES=113, PETRI_TRANSITIONS=156} [2024-10-24 23:31:19,227 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 68 predicate places. [2024-10-24 23:31:19,228 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 156 transitions, 1320 flow [2024-10-24 23:31:19,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:19,229 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:31:19,229 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:31:19,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 23:31:19,230 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-24 23:31:19,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:31:19,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1198305234, now seen corresponding path program 1 times [2024-10-24 23:31:19,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:31:19,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871226768] [2024-10-24 23:31:19,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:31:19,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:31:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:31:19,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:31:19,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:31:19,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871226768] [2024-10-24 23:31:19,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871226768] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:31:19,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:31:19,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 23:31:19,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810426315] [2024-10-24 23:31:19,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:31:19,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:31:19,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:31:19,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:31:19,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:31:19,335 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 44 [2024-10-24 23:31:19,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 156 transitions, 1320 flow. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:19,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:31:19,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 44 [2024-10-24 23:31:19,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:31:20,216 INFO L124 PetriNetUnfolderBase]: 2895/4821 cut-off events. [2024-10-24 23:31:20,217 INFO L125 PetriNetUnfolderBase]: For 10611/10614 co-relation queries the response was YES. [2024-10-24 23:31:20,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17612 conditions, 4821 events. 2895/4821 cut-off events. For 10611/10614 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 29777 event pairs, 810 based on Foata normal form. 1/4564 useless extension candidates. Maximal degree in co-relation 16659. Up to 3827 conditions per place. [2024-10-24 23:31:20,261 INFO L140 encePairwiseOnDemand]: 41/44 looper letters, 192 selfloop transitions, 21 changer transitions 0/215 dead transitions. [2024-10-24 23:31:20,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 215 transitions, 2197 flow [2024-10-24 23:31:20,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:31:20,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:31:20,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 90 transitions. [2024-10-24 23:31:20,263 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5113636363636364 [2024-10-24 23:31:20,263 INFO L175 Difference]: Start difference. First operand has 113 places, 156 transitions, 1320 flow. Second operand 4 states and 90 transitions. [2024-10-24 23:31:20,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 215 transitions, 2197 flow [2024-10-24 23:31:20,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 215 transitions, 2038 flow, removed 20 selfloop flow, removed 8 redundant places. [2024-10-24 23:31:20,306 INFO L231 Difference]: Finished difference. Result has 105 places, 136 transitions, 1074 flow [2024-10-24 23:31:20,306 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=1032, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1074, PETRI_PLACES=105, PETRI_TRANSITIONS=136} [2024-10-24 23:31:20,307 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 60 predicate places. [2024-10-24 23:31:20,307 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 136 transitions, 1074 flow [2024-10-24 23:31:20,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:20,307 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:31:20,308 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:31:20,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 23:31:20,308 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-24 23:31:20,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:31:20,309 INFO L85 PathProgramCache]: Analyzing trace with hash 135074367, now seen corresponding path program 1 times [2024-10-24 23:31:20,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:31:20,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251901164] [2024-10-24 23:31:20,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:31:20,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:31:20,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:31:20,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:31:20,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:31:20,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251901164] [2024-10-24 23:31:20,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251901164] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:31:20,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:31:20,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 23:31:20,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359711841] [2024-10-24 23:31:20,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:31:20,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 23:31:20,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:31:20,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 23:31:20,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-24 23:31:20,918 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-24 23:31:20,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 136 transitions, 1074 flow. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:20,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:31:20,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-24 23:31:20,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:31:22,088 INFO L124 PetriNetUnfolderBase]: 3209/5366 cut-off events. [2024-10-24 23:31:22,088 INFO L125 PetriNetUnfolderBase]: For 12594/12602 co-relation queries the response was YES. [2024-10-24 23:31:22,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19637 conditions, 5366 events. 3209/5366 cut-off events. For 12594/12602 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 32275 event pairs, 1572 based on Foata normal form. 56/5148 useless extension candidates. Maximal degree in co-relation 18402. Up to 3576 conditions per place. [2024-10-24 23:31:22,139 INFO L140 encePairwiseOnDemand]: 31/44 looper letters, 157 selfloop transitions, 73 changer transitions 4/236 dead transitions. [2024-10-24 23:31:22,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 236 transitions, 2184 flow [2024-10-24 23:31:22,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 23:31:22,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-24 23:31:22,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 206 transitions. [2024-10-24 23:31:22,142 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36013986013986016 [2024-10-24 23:31:22,142 INFO L175 Difference]: Start difference. First operand has 105 places, 136 transitions, 1074 flow. Second operand 13 states and 206 transitions. [2024-10-24 23:31:22,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 236 transitions, 2184 flow [2024-10-24 23:31:22,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 236 transitions, 2144 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 23:31:22,200 INFO L231 Difference]: Finished difference. Result has 121 places, 166 transitions, 1527 flow [2024-10-24 23:31:22,201 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=1052, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1527, PETRI_PLACES=121, PETRI_TRANSITIONS=166} [2024-10-24 23:31:22,202 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 76 predicate places. [2024-10-24 23:31:22,203 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 166 transitions, 1527 flow [2024-10-24 23:31:22,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:22,203 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:31:22,204 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:31:22,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 23:31:22,204 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-24 23:31:22,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:31:22,205 INFO L85 PathProgramCache]: Analyzing trace with hash -781707630, now seen corresponding path program 1 times [2024-10-24 23:31:22,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:31:22,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907919773] [2024-10-24 23:31:22,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:31:22,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:31:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:31:22,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:31:22,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:31:22,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907919773] [2024-10-24 23:31:22,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907919773] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:31:22,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:31:22,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 23:31:22,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9814480] [2024-10-24 23:31:22,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:31:22,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 23:31:22,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:31:22,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 23:31:22,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-24 23:31:22,662 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-24 23:31:22,662 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 166 transitions, 1527 flow. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:22,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:31:22,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-24 23:31:22,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:31:24,554 INFO L124 PetriNetUnfolderBase]: 5584/9391 cut-off events. [2024-10-24 23:31:24,554 INFO L125 PetriNetUnfolderBase]: For 27158/27166 co-relation queries the response was YES. [2024-10-24 23:31:24,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38162 conditions, 9391 events. 5584/9391 cut-off events. For 27158/27166 co-relation queries the response was YES. Maximal size of possible extension queue 421. Compared 64886 event pairs, 1541 based on Foata normal form. 60/8935 useless extension candidates. Maximal degree in co-relation 36263. Up to 4155 conditions per place. [2024-10-24 23:31:24,622 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 347 selfloop transitions, 53 changer transitions 3/405 dead transitions. [2024-10-24 23:31:24,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 405 transitions, 4388 flow [2024-10-24 23:31:24,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 23:31:24,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-24 23:31:24,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 227 transitions. [2024-10-24 23:31:24,624 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4690082644628099 [2024-10-24 23:31:24,624 INFO L175 Difference]: Start difference. First operand has 121 places, 166 transitions, 1527 flow. Second operand 11 states and 227 transitions. [2024-10-24 23:31:24,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 405 transitions, 4388 flow [2024-10-24 23:31:24,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 405 transitions, 4255 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-24 23:31:24,790 INFO L231 Difference]: Finished difference. Result has 131 places, 188 transitions, 1819 flow [2024-10-24 23:31:24,790 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=1446, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1819, PETRI_PLACES=131, PETRI_TRANSITIONS=188} [2024-10-24 23:31:24,792 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 86 predicate places. [2024-10-24 23:31:24,792 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 188 transitions, 1819 flow [2024-10-24 23:31:24,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:24,792 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:31:24,793 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:31:24,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 23:31:24,793 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-24 23:31:24,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:31:24,793 INFO L85 PathProgramCache]: Analyzing trace with hash -59745134, now seen corresponding path program 2 times [2024-10-24 23:31:24,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:31:24,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905599301] [2024-10-24 23:31:24,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:31:24,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:31:24,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:31:25,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:31:25,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:31:25,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905599301] [2024-10-24 23:31:25,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905599301] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:31:25,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:31:25,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 23:31:25,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866241172] [2024-10-24 23:31:25,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:31:25,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 23:31:25,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:31:25,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 23:31:25,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-24 23:31:25,240 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-24 23:31:25,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 188 transitions, 1819 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:25,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:31:25,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-24 23:31:25,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:31:26,937 INFO L124 PetriNetUnfolderBase]: 6270/10630 cut-off events. [2024-10-24 23:31:26,937 INFO L125 PetriNetUnfolderBase]: For 41098/41106 co-relation queries the response was YES. [2024-10-24 23:31:26,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45750 conditions, 10630 events. 6270/10630 cut-off events. For 41098/41106 co-relation queries the response was YES. Maximal size of possible extension queue 478. Compared 74860 event pairs, 3397 based on Foata normal form. 96/10190 useless extension candidates. Maximal degree in co-relation 42412. Up to 7445 conditions per place. [2024-10-24 23:31:27,039 INFO L140 encePairwiseOnDemand]: 30/44 looper letters, 269 selfloop transitions, 128 changer transitions 9/408 dead transitions. [2024-10-24 23:31:27,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 408 transitions, 4689 flow [2024-10-24 23:31:27,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 23:31:27,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-10-24 23:31:27,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 296 transitions. [2024-10-24 23:31:27,042 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.33636363636363636 [2024-10-24 23:31:27,042 INFO L175 Difference]: Start difference. First operand has 131 places, 188 transitions, 1819 flow. Second operand 20 states and 296 transitions. [2024-10-24 23:31:27,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 408 transitions, 4689 flow [2024-10-24 23:31:27,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 408 transitions, 4552 flow, removed 41 selfloop flow, removed 3 redundant places. [2024-10-24 23:31:27,302 INFO L231 Difference]: Finished difference. Result has 159 places, 282 transitions, 3359 flow [2024-10-24 23:31:27,303 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=1748, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=3359, PETRI_PLACES=159, PETRI_TRANSITIONS=282} [2024-10-24 23:31:27,303 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 114 predicate places. [2024-10-24 23:31:27,304 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 282 transitions, 3359 flow [2024-10-24 23:31:27,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:27,304 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:31:27,304 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:31:27,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 23:31:27,305 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-24 23:31:27,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:31:27,305 INFO L85 PathProgramCache]: Analyzing trace with hash -59745455, now seen corresponding path program 1 times [2024-10-24 23:31:27,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:31:27,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671456712] [2024-10-24 23:31:27,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:31:27,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:31:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:31:27,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:31:27,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:31:27,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671456712] [2024-10-24 23:31:27,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671456712] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:31:27,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:31:27,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 23:31:27,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467211460] [2024-10-24 23:31:27,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:31:27,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 23:31:27,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:31:27,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 23:31:27,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-24 23:31:27,683 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-24 23:31:27,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 282 transitions, 3359 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:27,683 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:31:27,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-24 23:31:27,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:31:29,227 INFO L124 PetriNetUnfolderBase]: 5808/9922 cut-off events. [2024-10-24 23:31:29,227 INFO L125 PetriNetUnfolderBase]: For 51511/51519 co-relation queries the response was YES. [2024-10-24 23:31:29,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46273 conditions, 9922 events. 5808/9922 cut-off events. For 51511/51519 co-relation queries the response was YES. Maximal size of possible extension queue 445. Compared 70027 event pairs, 3287 based on Foata normal form. 110/9492 useless extension candidates. Maximal degree in co-relation 45464. Up to 7996 conditions per place. [2024-10-24 23:31:29,313 INFO L140 encePairwiseOnDemand]: 31/44 looper letters, 256 selfloop transitions, 94 changer transitions 15/367 dead transitions. [2024-10-24 23:31:29,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 367 transitions, 4875 flow [2024-10-24 23:31:29,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 23:31:29,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-24 23:31:29,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 196 transitions. [2024-10-24 23:31:29,317 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3712121212121212 [2024-10-24 23:31:29,318 INFO L175 Difference]: Start difference. First operand has 159 places, 282 transitions, 3359 flow. Second operand 12 states and 196 transitions. [2024-10-24 23:31:29,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 367 transitions, 4875 flow [2024-10-24 23:31:29,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 367 transitions, 4744 flow, removed 61 selfloop flow, removed 2 redundant places. [2024-10-24 23:31:29,679 INFO L231 Difference]: Finished difference. Result has 173 places, 295 transitions, 3725 flow [2024-10-24 23:31:29,680 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=3264, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3725, PETRI_PLACES=173, PETRI_TRANSITIONS=295} [2024-10-24 23:31:29,680 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 128 predicate places. [2024-10-24 23:31:29,680 INFO L471 AbstractCegarLoop]: Abstraction has has 173 places, 295 transitions, 3725 flow [2024-10-24 23:31:29,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:29,681 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:31:29,681 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:31:29,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 23:31:29,681 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-24 23:31:29,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:31:29,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1611662663, now seen corresponding path program 2 times [2024-10-24 23:31:29,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:31:29,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029103342] [2024-10-24 23:31:29,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:31:29,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:31:29,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:31:30,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:31:30,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:31:30,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029103342] [2024-10-24 23:31:30,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029103342] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:31:30,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:31:30,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 23:31:30,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708751036] [2024-10-24 23:31:30,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:31:30,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 23:31:30,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:31:30,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 23:31:30,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-24 23:31:30,081 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-24 23:31:30,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 295 transitions, 3725 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:30,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:31:30,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-24 23:31:30,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:31:32,384 INFO L124 PetriNetUnfolderBase]: 6095/10413 cut-off events. [2024-10-24 23:31:32,384 INFO L125 PetriNetUnfolderBase]: For 57710/57718 co-relation queries the response was YES. [2024-10-24 23:31:32,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50032 conditions, 10413 events. 6095/10413 cut-off events. For 57710/57718 co-relation queries the response was YES. Maximal size of possible extension queue 468. Compared 73325 event pairs, 3233 based on Foata normal form. 126/10001 useless extension candidates. Maximal degree in co-relation 49134. Up to 6881 conditions per place. [2024-10-24 23:31:32,520 INFO L140 encePairwiseOnDemand]: 30/44 looper letters, 274 selfloop transitions, 161 changer transitions 17/454 dead transitions. [2024-10-24 23:31:32,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 454 transitions, 6172 flow [2024-10-24 23:31:32,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-24 23:31:32,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-10-24 23:31:32,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 285 transitions. [2024-10-24 23:31:32,527 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3409090909090909 [2024-10-24 23:31:32,527 INFO L175 Difference]: Start difference. First operand has 173 places, 295 transitions, 3725 flow. Second operand 19 states and 285 transitions. [2024-10-24 23:31:32,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 454 transitions, 6172 flow [2024-10-24 23:31:33,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 454 transitions, 6060 flow, removed 19 selfloop flow, removed 5 redundant places. [2024-10-24 23:31:33,007 INFO L231 Difference]: Finished difference. Result has 194 places, 327 transitions, 4536 flow [2024-10-24 23:31:33,008 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=3619, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=130, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=4536, PETRI_PLACES=194, PETRI_TRANSITIONS=327} [2024-10-24 23:31:33,008 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 149 predicate places. [2024-10-24 23:31:33,008 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 327 transitions, 4536 flow [2024-10-24 23:31:33,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:33,009 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:31:33,009 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:31:33,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 23:31:33,009 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-24 23:31:33,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:31:33,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1206654840, now seen corresponding path program 3 times [2024-10-24 23:31:33,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:31:33,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242215059] [2024-10-24 23:31:33,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:31:33,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:31:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:31:33,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:31:33,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:31:33,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242215059] [2024-10-24 23:31:33,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242215059] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:31:33,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:31:33,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 23:31:33,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092360462] [2024-10-24 23:31:33,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:31:33,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 23:31:33,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:31:33,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 23:31:33,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-24 23:31:33,488 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-24 23:31:33,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 327 transitions, 4536 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:33,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:31:33,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-24 23:31:33,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:31:35,700 INFO L124 PetriNetUnfolderBase]: 6447/11067 cut-off events. [2024-10-24 23:31:35,701 INFO L125 PetriNetUnfolderBase]: For 80547/80555 co-relation queries the response was YES. [2024-10-24 23:31:35,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56743 conditions, 11067 events. 6447/11067 cut-off events. For 80547/80555 co-relation queries the response was YES. Maximal size of possible extension queue 509. Compared 79055 event pairs, 3675 based on Foata normal form. 104/10629 useless extension candidates. Maximal degree in co-relation 55904. Up to 7323 conditions per place. [2024-10-24 23:31:35,835 INFO L140 encePairwiseOnDemand]: 31/44 looper letters, 249 selfloop transitions, 170 changer transitions 10/431 dead transitions. [2024-10-24 23:31:35,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 431 transitions, 6369 flow [2024-10-24 23:31:35,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-24 23:31:35,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-24 23:31:35,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 297 transitions. [2024-10-24 23:31:35,837 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.32142857142857145 [2024-10-24 23:31:35,837 INFO L175 Difference]: Start difference. First operand has 194 places, 327 transitions, 4536 flow. Second operand 21 states and 297 transitions. [2024-10-24 23:31:35,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 431 transitions, 6369 flow [2024-10-24 23:31:36,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 431 transitions, 6042 flow, removed 72 selfloop flow, removed 12 redundant places. [2024-10-24 23:31:36,325 INFO L231 Difference]: Finished difference. Result has 206 places, 345 transitions, 4944 flow [2024-10-24 23:31:36,326 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=4273, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=153, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=4944, PETRI_PLACES=206, PETRI_TRANSITIONS=345} [2024-10-24 23:31:36,326 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 161 predicate places. [2024-10-24 23:31:36,326 INFO L471 AbstractCegarLoop]: Abstraction has has 206 places, 345 transitions, 4944 flow [2024-10-24 23:31:36,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:36,326 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:31:36,327 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:31:36,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 23:31:36,327 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-24 23:31:36,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:31:36,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1256771727, now seen corresponding path program 2 times [2024-10-24 23:31:36,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:31:36,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38337624] [2024-10-24 23:31:36,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:31:36,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:31:36,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:31:36,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:31:36,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:31:36,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38337624] [2024-10-24 23:31:36,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38337624] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:31:36,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:31:36,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 23:31:36,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253775580] [2024-10-24 23:31:36,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:31:36,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 23:31:36,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:31:36,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 23:31:36,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-24 23:31:36,802 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-24 23:31:36,802 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 345 transitions, 4944 flow. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:36,802 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:31:36,803 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-24 23:31:36,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:31:38,748 INFO L124 PetriNetUnfolderBase]: 6250/10715 cut-off events. [2024-10-24 23:31:38,748 INFO L125 PetriNetUnfolderBase]: For 85597/85605 co-relation queries the response was YES. [2024-10-24 23:31:38,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57062 conditions, 10715 events. 6250/10715 cut-off events. For 85597/85605 co-relation queries the response was YES. Maximal size of possible extension queue 490. Compared 75964 event pairs, 3471 based on Foata normal form. 48/10206 useless extension candidates. Maximal degree in co-relation 56209. Up to 6863 conditions per place. [2024-10-24 23:31:38,866 INFO L140 encePairwiseOnDemand]: 33/44 looper letters, 299 selfloop transitions, 157 changer transitions 6/464 dead transitions. [2024-10-24 23:31:38,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 464 transitions, 7097 flow [2024-10-24 23:31:38,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 23:31:38,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-24 23:31:38,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 225 transitions. [2024-10-24 23:31:38,868 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3409090909090909 [2024-10-24 23:31:38,868 INFO L175 Difference]: Start difference. First operand has 206 places, 345 transitions, 4944 flow. Second operand 15 states and 225 transitions. [2024-10-24 23:31:38,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 464 transitions, 7097 flow [2024-10-24 23:31:39,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 464 transitions, 6870 flow, removed 23 selfloop flow, removed 6 redundant places. [2024-10-24 23:31:39,679 INFO L231 Difference]: Finished difference. Result has 219 places, 373 transitions, 5529 flow [2024-10-24 23:31:39,680 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=4747, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=5529, PETRI_PLACES=219, PETRI_TRANSITIONS=373} [2024-10-24 23:31:39,681 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 174 predicate places. [2024-10-24 23:31:39,681 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 373 transitions, 5529 flow [2024-10-24 23:31:39,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:39,681 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:31:39,681 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:31:39,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 23:31:39,682 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-24 23:31:39,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:31:39,682 INFO L85 PathProgramCache]: Analyzing trace with hash -2116807447, now seen corresponding path program 3 times [2024-10-24 23:31:39,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:31:39,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489997071] [2024-10-24 23:31:39,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:31:39,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:31:39,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:31:40,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:31:40,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:31:40,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489997071] [2024-10-24 23:31:40,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489997071] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:31:40,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:31:40,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 23:31:40,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386789695] [2024-10-24 23:31:40,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:31:40,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 23:31:40,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:31:40,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 23:31:40,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-24 23:31:40,025 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-24 23:31:40,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 373 transitions, 5529 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:40,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:31:40,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-24 23:31:40,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:31:42,276 INFO L124 PetriNetUnfolderBase]: 6638/11441 cut-off events. [2024-10-24 23:31:42,276 INFO L125 PetriNetUnfolderBase]: For 106261/106269 co-relation queries the response was YES. [2024-10-24 23:31:42,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63439 conditions, 11441 events. 6638/11441 cut-off events. For 106261/106269 co-relation queries the response was YES. Maximal size of possible extension queue 532. Compared 82535 event pairs, 3751 based on Foata normal form. 136/11016 useless extension candidates. Maximal degree in co-relation 62563. Up to 7895 conditions per place. [2024-10-24 23:31:42,373 INFO L140 encePairwiseOnDemand]: 30/44 looper letters, 332 selfloop transitions, 131 changer transitions 20/485 dead transitions. [2024-10-24 23:31:42,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 485 transitions, 7562 flow [2024-10-24 23:31:42,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 23:31:42,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-24 23:31:42,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 227 transitions. [2024-10-24 23:31:42,375 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.34393939393939393 [2024-10-24 23:31:42,375 INFO L175 Difference]: Start difference. First operand has 219 places, 373 transitions, 5529 flow. Second operand 15 states and 227 transitions. [2024-10-24 23:31:42,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 485 transitions, 7562 flow [2024-10-24 23:31:42,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 485 transitions, 7362 flow, removed 53 selfloop flow, removed 5 redundant places. [2024-10-24 23:31:42,904 INFO L231 Difference]: Finished difference. Result has 231 places, 378 transitions, 5721 flow [2024-10-24 23:31:42,904 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=5346, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=5721, PETRI_PLACES=231, PETRI_TRANSITIONS=378} [2024-10-24 23:31:42,905 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 186 predicate places. [2024-10-24 23:31:42,905 INFO L471 AbstractCegarLoop]: Abstraction has has 231 places, 378 transitions, 5721 flow [2024-10-24 23:31:42,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:42,905 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:31:42,905 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:31:42,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 23:31:42,906 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-24 23:31:42,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:31:42,906 INFO L85 PathProgramCache]: Analyzing trace with hash -976224430, now seen corresponding path program 1 times [2024-10-24 23:31:42,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:31:42,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627605392] [2024-10-24 23:31:42,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:31:42,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:31:42,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:31:43,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:31:43,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:31:43,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627605392] [2024-10-24 23:31:43,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627605392] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:31:43,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:31:43,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 23:31:43,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247524825] [2024-10-24 23:31:43,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:31:43,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 23:31:43,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:31:43,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 23:31:43,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-24 23:31:43,291 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-24 23:31:43,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 378 transitions, 5721 flow. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:43,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:31:43,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-24 23:31:43,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:31:45,367 INFO L124 PetriNetUnfolderBase]: 6788/11663 cut-off events. [2024-10-24 23:31:45,367 INFO L125 PetriNetUnfolderBase]: For 115705/115713 co-relation queries the response was YES. [2024-10-24 23:31:45,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67079 conditions, 11663 events. 6788/11663 cut-off events. For 115705/115713 co-relation queries the response was YES. Maximal size of possible extension queue 533. Compared 84266 event pairs, 3812 based on Foata normal form. 83/11145 useless extension candidates. Maximal degree in co-relation 66115. Up to 8540 conditions per place. [2024-10-24 23:31:45,493 INFO L140 encePairwiseOnDemand]: 31/44 looper letters, 357 selfloop transitions, 148 changer transitions 15/522 dead transitions. [2024-10-24 23:31:45,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 522 transitions, 8331 flow [2024-10-24 23:31:45,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 23:31:45,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-24 23:31:45,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 203 transitions. [2024-10-24 23:31:45,495 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3548951048951049 [2024-10-24 23:31:45,495 INFO L175 Difference]: Start difference. First operand has 231 places, 378 transitions, 5721 flow. Second operand 13 states and 203 transitions. [2024-10-24 23:31:45,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 522 transitions, 8331 flow [2024-10-24 23:31:46,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 522 transitions, 7995 flow, removed 30 selfloop flow, removed 11 redundant places. [2024-10-24 23:31:46,163 INFO L231 Difference]: Finished difference. Result has 238 places, 426 transitions, 6572 flow [2024-10-24 23:31:46,163 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=5472, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=6572, PETRI_PLACES=238, PETRI_TRANSITIONS=426} [2024-10-24 23:31:46,164 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 193 predicate places. [2024-10-24 23:31:46,164 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 426 transitions, 6572 flow [2024-10-24 23:31:46,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:46,164 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:31:46,164 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:31:46,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 23:31:46,164 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-24 23:31:46,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:31:46,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1837987195, now seen corresponding path program 1 times [2024-10-24 23:31:46,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:31:46,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583784701] [2024-10-24 23:31:46,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:31:46,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:31:46,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:31:46,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:31:46,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:31:46,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583784701] [2024-10-24 23:31:46,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583784701] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:31:46,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:31:46,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 23:31:46,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596733908] [2024-10-24 23:31:46,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:31:46,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 23:31:46,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:31:46,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 23:31:46,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-24 23:31:46,488 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-24 23:31:46,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 426 transitions, 6572 flow. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:46,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:31:46,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-24 23:31:46,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:31:49,329 INFO L124 PetriNetUnfolderBase]: 7203/12418 cut-off events. [2024-10-24 23:31:49,330 INFO L125 PetriNetUnfolderBase]: For 143659/143667 co-relation queries the response was YES. [2024-10-24 23:31:49,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75500 conditions, 12418 events. 7203/12418 cut-off events. For 143659/143667 co-relation queries the response was YES. Maximal size of possible extension queue 583. Compared 91071 event pairs, 4062 based on Foata normal form. 83/11867 useless extension candidates. Maximal degree in co-relation 74590. Up to 9220 conditions per place. [2024-10-24 23:31:49,511 INFO L140 encePairwiseOnDemand]: 31/44 looper letters, 377 selfloop transitions, 177 changer transitions 15/571 dead transitions. [2024-10-24 23:31:49,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 571 transitions, 9262 flow [2024-10-24 23:31:49,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 23:31:49,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-24 23:31:49,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 226 transitions. [2024-10-24 23:31:49,513 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3424242424242424 [2024-10-24 23:31:49,513 INFO L175 Difference]: Start difference. First operand has 238 places, 426 transitions, 6572 flow. Second operand 15 states and 226 transitions. [2024-10-24 23:31:49,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 571 transitions, 9262 flow [2024-10-24 23:31:50,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 571 transitions, 9072 flow, removed 33 selfloop flow, removed 5 redundant places. [2024-10-24 23:31:50,533 INFO L231 Difference]: Finished difference. Result has 251 places, 471 transitions, 7487 flow [2024-10-24 23:31:50,533 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=6413, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=7487, PETRI_PLACES=251, PETRI_TRANSITIONS=471} [2024-10-24 23:31:50,534 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 206 predicate places. [2024-10-24 23:31:50,534 INFO L471 AbstractCegarLoop]: Abstraction has has 251 places, 471 transitions, 7487 flow [2024-10-24 23:31:50,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:50,535 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:31:50,535 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:31:50,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 23:31:50,535 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-24 23:31:50,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:31:50,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1508831487, now seen corresponding path program 1 times [2024-10-24 23:31:50,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:31:50,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473581441] [2024-10-24 23:31:50,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:31:50,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:31:50,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:31:50,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:31:50,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:31:50,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473581441] [2024-10-24 23:31:50,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473581441] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:31:50,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:31:50,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 23:31:50,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151828464] [2024-10-24 23:31:50,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:31:50,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 23:31:50,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:31:50,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 23:31:50,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-24 23:31:50,869 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-24 23:31:50,869 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 471 transitions, 7487 flow. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:50,869 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:31:50,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-24 23:31:50,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:31:55,285 INFO L124 PetriNetUnfolderBase]: 13069/23158 cut-off events. [2024-10-24 23:31:55,285 INFO L125 PetriNetUnfolderBase]: For 304839/304847 co-relation queries the response was YES. [2024-10-24 23:31:55,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138474 conditions, 23158 events. 13069/23158 cut-off events. For 304839/304847 co-relation queries the response was YES. Maximal size of possible extension queue 1319. Compared 199867 event pairs, 3933 based on Foata normal form. 328/22308 useless extension candidates. Maximal degree in co-relation 137343. Up to 7524 conditions per place. [2024-10-24 23:31:55,978 INFO L140 encePairwiseOnDemand]: 31/44 looper letters, 589 selfloop transitions, 93 changer transitions 10/694 dead transitions. [2024-10-24 23:31:55,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 694 transitions, 11418 flow [2024-10-24 23:31:55,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 23:31:55,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-24 23:31:55,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 222 transitions. [2024-10-24 23:31:55,979 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45867768595041325 [2024-10-24 23:31:55,979 INFO L175 Difference]: Start difference. First operand has 251 places, 471 transitions, 7487 flow. Second operand 11 states and 222 transitions. [2024-10-24 23:31:55,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 694 transitions, 11418 flow [2024-10-24 23:31:57,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 694 transitions, 11143 flow, removed 83 selfloop flow, removed 5 redundant places. [2024-10-24 23:31:57,757 INFO L231 Difference]: Finished difference. Result has 261 places, 490 transitions, 7827 flow [2024-10-24 23:31:57,757 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=7305, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7827, PETRI_PLACES=261, PETRI_TRANSITIONS=490} [2024-10-24 23:31:57,758 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 216 predicate places. [2024-10-24 23:31:57,758 INFO L471 AbstractCegarLoop]: Abstraction has has 261 places, 490 transitions, 7827 flow [2024-10-24 23:31:57,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:57,758 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:31:57,758 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:31:57,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 23:31:57,759 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-24 23:31:57,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:31:57,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1781679493, now seen corresponding path program 1 times [2024-10-24 23:31:57,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:31:57,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191195671] [2024-10-24 23:31:57,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:31:57,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:31:57,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:31:58,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:31:58,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:31:58,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191195671] [2024-10-24 23:31:58,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191195671] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:31:58,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:31:58,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 23:31:58,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733441818] [2024-10-24 23:31:58,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:31:58,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 23:31:58,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:31:58,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 23:31:58,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-24 23:31:58,131 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-24 23:31:58,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 490 transitions, 7827 flow. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:31:58,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:31:58,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-24 23:31:58,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:32:08,364 INFO L124 PetriNetUnfolderBase]: 22765/41023 cut-off events. [2024-10-24 23:32:08,364 INFO L125 PetriNetUnfolderBase]: For 647960/647968 co-relation queries the response was YES. [2024-10-24 23:32:09,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 267339 conditions, 41023 events. 22765/41023 cut-off events. For 647960/647968 co-relation queries the response was YES. Maximal size of possible extension queue 2554. Compared 393635 event pairs, 9184 based on Foata normal form. 609/39494 useless extension candidates. Maximal degree in co-relation 265508. Up to 17053 conditions per place. [2024-10-24 23:32:09,366 INFO L140 encePairwiseOnDemand]: 31/44 looper letters, 596 selfloop transitions, 140 changer transitions 23/761 dead transitions. [2024-10-24 23:32:09,367 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 761 transitions, 12791 flow [2024-10-24 23:32:09,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 23:32:09,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-24 23:32:09,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 229 transitions. [2024-10-24 23:32:09,368 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4731404958677686 [2024-10-24 23:32:09,368 INFO L175 Difference]: Start difference. First operand has 261 places, 490 transitions, 7827 flow. Second operand 11 states and 229 transitions. [2024-10-24 23:32:09,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 761 transitions, 12791 flow [2024-10-24 23:32:15,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 761 transitions, 12506 flow, removed 89 selfloop flow, removed 6 redundant places. [2024-10-24 23:32:15,920 INFO L231 Difference]: Finished difference. Result has 270 places, 524 transitions, 8662 flow [2024-10-24 23:32:15,920 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=7698, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=8662, PETRI_PLACES=270, PETRI_TRANSITIONS=524} [2024-10-24 23:32:15,920 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 225 predicate places. [2024-10-24 23:32:15,921 INFO L471 AbstractCegarLoop]: Abstraction has has 270 places, 524 transitions, 8662 flow [2024-10-24 23:32:15,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:32:15,921 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:32:15,921 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:32:15,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 23:32:15,921 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-24 23:32:15,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:32:15,922 INFO L85 PathProgramCache]: Analyzing trace with hash -803183727, now seen corresponding path program 2 times [2024-10-24 23:32:15,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:32:15,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102587081] [2024-10-24 23:32:15,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:32:15,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:32:15,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:32:16,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:32:16,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:32:16,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102587081] [2024-10-24 23:32:16,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102587081] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:32:16,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:32:16,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 23:32:16,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777104166] [2024-10-24 23:32:16,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:32:16,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 23:32:16,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:32:16,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 23:32:16,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-24 23:32:16,385 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-24 23:32:16,385 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 524 transitions, 8662 flow. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:32:16,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:32:16,385 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-24 23:32:16,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand