./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_3-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version fca748b1 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_3-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 11cd6df53312b6388eb67fa3ddad4ddfe9675663ccf0a1507d8b60fd9abceccc --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 21:50:33,959 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 21:50:34,014 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-20 21:50:34,021 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 21:50:34,022 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 21:50:34,047 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 21:50:34,048 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 21:50:34,049 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 21:50:34,049 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 21:50:34,051 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 21:50:34,051 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 21:50:34,051 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 21:50:34,052 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 21:50:34,052 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 21:50:34,052 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 21:50:34,054 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 21:50:34,054 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 21:50:34,055 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 21:50:34,055 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 21:50:34,055 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 21:50:34,055 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 21:50:34,058 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 21:50:34,058 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 21:50:34,059 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 21:50:34,059 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 21:50:34,059 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-20 21:50:34,059 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 21:50:34,059 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 21:50:34,060 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 21:50:34,060 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 21:50:34,060 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 21:50:34,060 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 21:50:34,060 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 21:50:34,060 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 21:50:34,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 21:50:34,061 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 21:50:34,061 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 21:50:34,061 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 21:50:34,061 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 21:50:34,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 21:50:34,062 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 21:50:34,062 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 21:50:34,063 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 21:50:34,063 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 21:50:34,063 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11cd6df53312b6388eb67fa3ddad4ddfe9675663ccf0a1507d8b60fd9abceccc [2024-11-20 21:50:34,257 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 21:50:34,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 21:50:34,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 21:50:34,278 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 21:50:34,279 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 21:50:34,280 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2024-11-20 21:50:35,533 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 21:50:35,770 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 21:50:35,770 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2024-11-20 21:50:35,795 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5adca364/10558022a48f46cb81d6aedcaffaad35/FLAGd6d676570 [2024-11-20 21:50:35,832 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5adca364/10558022a48f46cb81d6aedcaffaad35 [2024-11-20 21:50:35,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 21:50:35,839 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 21:50:35,842 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 21:50:35,842 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 21:50:35,856 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 21:50:35,858 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:50:35" (1/1) ... [2024-11-20 21:50:35,863 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cc05736 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:35, skipping insertion in model container [2024-11-20 21:50:35,863 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:50:35" (1/1) ... [2024-11-20 21:50:35,915 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 21:50:36,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 21:50:36,295 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 21:50:36,344 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 21:50:36,389 INFO L204 MainTranslator]: Completed translation [2024-11-20 21:50:36,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:36 WrapperNode [2024-11-20 21:50:36,390 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 21:50:36,391 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 21:50:36,391 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 21:50:36,391 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 21:50:36,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:36" (1/1) ... [2024-11-20 21:50:36,418 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:36" (1/1) ... [2024-11-20 21:50:36,445 INFO L138 Inliner]: procedures = 248, calls = 56, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 154 [2024-11-20 21:50:36,446 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 21:50:36,446 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 21:50:36,446 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 21:50:36,446 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 21:50:36,461 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:36" (1/1) ... [2024-11-20 21:50:36,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:36" (1/1) ... [2024-11-20 21:50:36,465 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:36" (1/1) ... [2024-11-20 21:50:36,479 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]. [2024-11-20 21:50:36,480 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:36" (1/1) ... [2024-11-20 21:50:36,480 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:36" (1/1) ... [2024-11-20 21:50:36,499 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:36" (1/1) ... [2024-11-20 21:50:36,502 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:36" (1/1) ... [2024-11-20 21:50:36,505 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:36" (1/1) ... [2024-11-20 21:50:36,510 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:36" (1/1) ... [2024-11-20 21:50:36,514 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 21:50:36,516 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 21:50:36,516 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 21:50:36,516 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 21:50:36,517 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:36" (1/1) ... [2024-11-20 21:50:36,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 21:50:36,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:50:36,553 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 21:50:36,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 21:50:36,598 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-11-20 21:50:36,598 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-11-20 21:50:36,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-20 21:50:36,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 21:50:36,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 21:50:36,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-20 21:50:36,599 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 21:50:36,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 21:50:36,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 21:50:36,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 21:50:36,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 21:50:36,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 21:50:36,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 21:50:36,601 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 21:50:36,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 21:50:36,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 21:50:36,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 21:50:36,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-20 21:50:36,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 21:50:36,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 21:50:36,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 21:50:36,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 21:50:36,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 21:50:36,605 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 21:50:36,820 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 21:50:36,822 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 21:50:37,107 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 21:50:37,108 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 21:50:37,259 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 21:50:37,259 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 21:50:37,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:50:37 BoogieIcfgContainer [2024-11-20 21:50:37,260 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 21:50:37,261 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 21:50:37,261 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 21:50:37,264 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 21:50:37,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:50:35" (1/3) ... [2024-11-20 21:50:37,265 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd05adb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:50:37, skipping insertion in model container [2024-11-20 21:50:37,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:36" (2/3) ... [2024-11-20 21:50:37,265 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd05adb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:50:37, skipping insertion in model container [2024-11-20 21:50:37,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:50:37" (3/3) ... [2024-11-20 21:50:37,266 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2024-11-20 21:50:37,281 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 21:50:37,281 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-20 21:50:37,281 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 21:50:37,324 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-20 21:50:37,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 45 transitions, 104 flow [2024-11-20 21:50:37,387 INFO L124 PetriNetUnfolderBase]: 2/48 cut-off events. [2024-11-20 21:50:37,387 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 21:50:37,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 48 events. 2/48 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 85 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 24. Up to 3 conditions per place. [2024-11-20 21:50:37,390 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 45 transitions, 104 flow [2024-11-20 21:50:37,394 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 39 transitions, 87 flow [2024-11-20 21:50:37,407 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 21:50:37,415 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;@50fc7ffb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 21:50:37,415 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-20 21:50:37,428 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 21:50:37,429 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-11-20 21:50:37,429 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 21:50:37,429 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:50:37,429 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:50:37,430 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:50:37,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:50:37,438 INFO L85 PathProgramCache]: Analyzing trace with hash -18686460, now seen corresponding path program 1 times [2024-11-20 21:50:37,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:50:37,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129509929] [2024-11-20 21:50:37,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:50:37,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:50:37,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:50:38,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:50:38,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:50:38,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129509929] [2024-11-20 21:50:38,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129509929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:50:38,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:50:38,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 21:50:38,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912188699] [2024-11-20 21:50:38,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:50:38,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 21:50:38,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:50:38,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 21:50:38,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 21:50:38,295 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2024-11-20 21:50:38,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 87 flow. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:50:38,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:50:38,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2024-11-20 21:50:38,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:50:38,967 INFO L124 PetriNetUnfolderBase]: 2305/3802 cut-off events. [2024-11-20 21:50:38,967 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-11-20 21:50:38,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7572 conditions, 3802 events. 2305/3802 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 21412 event pairs, 1459 based on Foata normal form. 0/3314 useless extension candidates. Maximal degree in co-relation 7480. Up to 2586 conditions per place. [2024-11-20 21:50:38,992 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 74 selfloop transitions, 14 changer transitions 3/95 dead transitions. [2024-11-20 21:50:38,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 95 transitions, 396 flow [2024-11-20 21:50:38,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 21:50:38,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-20 21:50:39,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2024-11-20 21:50:39,005 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41944444444444445 [2024-11-20 21:50:39,007 INFO L175 Difference]: Start difference. First operand has 46 places, 39 transitions, 87 flow. Second operand 8 states and 151 transitions. [2024-11-20 21:50:39,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 95 transitions, 396 flow [2024-11-20 21:50:39,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 95 transitions, 385 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-20 21:50:39,022 INFO L231 Difference]: Finished difference. Result has 55 places, 53 transitions, 181 flow [2024-11-20 21:50:39,025 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=181, PETRI_PLACES=55, PETRI_TRANSITIONS=53} [2024-11-20 21:50:39,029 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 9 predicate places. [2024-11-20 21:50:39,029 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 53 transitions, 181 flow [2024-11-20 21:50:39,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:50:39,029 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:50:39,030 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:50:39,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 21:50:39,030 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:50:39,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:50:39,031 INFO L85 PathProgramCache]: Analyzing trace with hash 2017334278, now seen corresponding path program 1 times [2024-11-20 21:50:39,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:50:39,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726433942] [2024-11-20 21:50:39,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:50:39,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:50:39,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:50:39,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:50:39,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:50:39,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726433942] [2024-11-20 21:50:39,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726433942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:50:39,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:50:39,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 21:50:39,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736243149] [2024-11-20 21:50:39,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:50:39,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 21:50:39,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:50:39,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 21:50:39,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 21:50:39,343 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2024-11-20 21:50:39,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 53 transitions, 181 flow. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:50:39,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:50:39,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2024-11-20 21:50:39,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:50:39,888 INFO L124 PetriNetUnfolderBase]: 2865/4764 cut-off events. [2024-11-20 21:50:39,889 INFO L125 PetriNetUnfolderBase]: For 1135/1137 co-relation queries the response was YES. [2024-11-20 21:50:39,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10958 conditions, 4764 events. 2865/4764 cut-off events. For 1135/1137 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 28546 event pairs, 1875 based on Foata normal form. 2/4348 useless extension candidates. Maximal degree in co-relation 10013. Up to 3562 conditions per place. [2024-11-20 21:50:39,910 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 76 selfloop transitions, 18 changer transitions 5/103 dead transitions. [2024-11-20 21:50:39,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 103 transitions, 534 flow [2024-11-20 21:50:39,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 21:50:39,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-20 21:50:39,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 148 transitions. [2024-11-20 21:50:39,912 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4111111111111111 [2024-11-20 21:50:39,912 INFO L175 Difference]: Start difference. First operand has 55 places, 53 transitions, 181 flow. Second operand 8 states and 148 transitions. [2024-11-20 21:50:39,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 103 transitions, 534 flow [2024-11-20 21:50:39,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 103 transitions, 532 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 21:50:39,924 INFO L231 Difference]: Finished difference. Result has 66 places, 65 transitions, 307 flow [2024-11-20 21:50:39,925 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=307, PETRI_PLACES=66, PETRI_TRANSITIONS=65} [2024-11-20 21:50:39,925 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 20 predicate places. [2024-11-20 21:50:39,925 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 65 transitions, 307 flow [2024-11-20 21:50:39,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:50:39,926 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:50:39,926 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:50:39,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 21:50:39,926 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:50:39,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:50:39,926 INFO L85 PathProgramCache]: Analyzing trace with hash 2085034683, now seen corresponding path program 1 times [2024-11-20 21:50:39,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:50:39,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87494595] [2024-11-20 21:50:39,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:50:39,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:50:39,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:50:40,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:50:40,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:50:40,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87494595] [2024-11-20 21:50:40,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87494595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:50:40,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:50:40,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 21:50:40,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729494304] [2024-11-20 21:50:40,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:50:40,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 21:50:40,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:50:40,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 21:50:40,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 21:50:40,207 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2024-11-20 21:50:40,207 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 65 transitions, 307 flow. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 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) [2024-11-20 21:50:40,207 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:50:40,207 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2024-11-20 21:50:40,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:50:40,994 INFO L124 PetriNetUnfolderBase]: 3338/5581 cut-off events. [2024-11-20 21:50:40,995 INFO L125 PetriNetUnfolderBase]: For 3282/3290 co-relation queries the response was YES. [2024-11-20 21:50:41,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14456 conditions, 5581 events. 3338/5581 cut-off events. For 3282/3290 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 34753 event pairs, 2168 based on Foata normal form. 85/5354 useless extension candidates. Maximal degree in co-relation 14322. Up to 3435 conditions per place. [2024-11-20 21:50:41,024 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 89 selfloop transitions, 19 changer transitions 3/115 dead transitions. [2024-11-20 21:50:41,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 115 transitions, 691 flow [2024-11-20 21:50:41,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 21:50:41,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-20 21:50:41,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 140 transitions. [2024-11-20 21:50:41,026 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-11-20 21:50:41,026 INFO L175 Difference]: Start difference. First operand has 66 places, 65 transitions, 307 flow. Second operand 7 states and 140 transitions. [2024-11-20 21:50:41,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 115 transitions, 691 flow [2024-11-20 21:50:41,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 115 transitions, 673 flow, removed 4 selfloop flow, removed 1 redundant places. [2024-11-20 21:50:41,040 INFO L231 Difference]: Finished difference. Result has 75 places, 77 transitions, 419 flow [2024-11-20 21:50:41,041 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=419, PETRI_PLACES=75, PETRI_TRANSITIONS=77} [2024-11-20 21:50:41,041 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 29 predicate places. [2024-11-20 21:50:41,042 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 77 transitions, 419 flow [2024-11-20 21:50:41,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 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) [2024-11-20 21:50:41,042 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:50:41,042 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:50:41,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 21:50:41,042 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:50:41,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:50:41,043 INFO L85 PathProgramCache]: Analyzing trace with hash 259224701, now seen corresponding path program 1 times [2024-11-20 21:50:41,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:50:41,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978605355] [2024-11-20 21:50:41,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:50:41,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:50:41,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:50:41,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:50:41,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:50:41,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978605355] [2024-11-20 21:50:41,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978605355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:50:41,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:50:41,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 21:50:41,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219670557] [2024-11-20 21:50:41,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:50:41,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 21:50:41,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:50:41,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 21:50:41,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 21:50:41,324 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2024-11-20 21:50:41,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 77 transitions, 419 flow. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 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) [2024-11-20 21:50:41,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:50:41,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2024-11-20 21:50:41,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:50:42,141 INFO L124 PetriNetUnfolderBase]: 3799/6378 cut-off events. [2024-11-20 21:50:42,142 INFO L125 PetriNetUnfolderBase]: For 6305/6309 co-relation queries the response was YES. [2024-11-20 21:50:42,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18142 conditions, 6378 events. 3799/6378 cut-off events. For 6305/6309 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 41011 event pairs, 2513 based on Foata normal form. 84/6128 useless extension candidates. Maximal degree in co-relation 16728. Up to 4274 conditions per place. [2024-11-20 21:50:42,186 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 95 selfloop transitions, 22 changer transitions 5/126 dead transitions. [2024-11-20 21:50:42,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 126 transitions, 878 flow [2024-11-20 21:50:42,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 21:50:42,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-20 21:50:42,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 139 transitions. [2024-11-20 21:50:42,188 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44126984126984126 [2024-11-20 21:50:42,189 INFO L175 Difference]: Start difference. First operand has 75 places, 77 transitions, 419 flow. Second operand 7 states and 139 transitions. [2024-11-20 21:50:42,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 126 transitions, 878 flow [2024-11-20 21:50:42,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 126 transitions, 852 flow, removed 12 selfloop flow, removed 1 redundant places. [2024-11-20 21:50:42,216 INFO L231 Difference]: Finished difference. Result has 84 places, 89 transitions, 571 flow [2024-11-20 21:50:42,216 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=571, PETRI_PLACES=84, PETRI_TRANSITIONS=89} [2024-11-20 21:50:42,217 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 38 predicate places. [2024-11-20 21:50:42,217 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 89 transitions, 571 flow [2024-11-20 21:50:42,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 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) [2024-11-20 21:50:42,218 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:50:42,218 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:50:42,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 21:50:42,219 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:50:42,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:50:42,219 INFO L85 PathProgramCache]: Analyzing trace with hash 195835628, now seen corresponding path program 1 times [2024-11-20 21:50:42,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:50:42,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609072251] [2024-11-20 21:50:42,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:50:42,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:50:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:50:42,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:50:42,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:50:42,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609072251] [2024-11-20 21:50:42,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609072251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:50:42,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:50:42,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 21:50:42,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912070280] [2024-11-20 21:50:42,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:50:42,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 21:50:42,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:50:42,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 21:50:42,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 21:50:42,516 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2024-11-20 21:50:42,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 89 transitions, 571 flow. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 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) [2024-11-20 21:50:42,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:50:42,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2024-11-20 21:50:42,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:50:44,077 INFO L124 PetriNetUnfolderBase]: 6918/12313 cut-off events. [2024-11-20 21:50:44,078 INFO L125 PetriNetUnfolderBase]: For 13690/13701 co-relation queries the response was YES. [2024-11-20 21:50:44,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33815 conditions, 12313 events. 6918/12313 cut-off events. For 13690/13701 co-relation queries the response was YES. Maximal size of possible extension queue 597. Compared 95864 event pairs, 739 based on Foata normal form. 198/11958 useless extension candidates. Maximal degree in co-relation 33655. Up to 3356 conditions per place. [2024-11-20 21:50:44,167 INFO L140 encePairwiseOnDemand]: 32/45 looper letters, 193 selfloop transitions, 38 changer transitions 12/247 dead transitions. [2024-11-20 21:50:44,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 247 transitions, 1841 flow [2024-11-20 21:50:44,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 21:50:44,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-20 21:50:44,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 259 transitions. [2024-11-20 21:50:44,169 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5232323232323233 [2024-11-20 21:50:44,169 INFO L175 Difference]: Start difference. First operand has 84 places, 89 transitions, 571 flow. Second operand 11 states and 259 transitions. [2024-11-20 21:50:44,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 247 transitions, 1841 flow [2024-11-20 21:50:44,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 247 transitions, 1789 flow, removed 24 selfloop flow, removed 1 redundant places. [2024-11-20 21:50:44,205 INFO L231 Difference]: Finished difference. Result has 101 places, 117 transitions, 884 flow [2024-11-20 21:50:44,206 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=550, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=884, PETRI_PLACES=101, PETRI_TRANSITIONS=117} [2024-11-20 21:50:44,206 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 55 predicate places. [2024-11-20 21:50:44,207 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 117 transitions, 884 flow [2024-11-20 21:50:44,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 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) [2024-11-20 21:50:44,207 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:50:44,207 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:50:44,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 21:50:44,207 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:50:44,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:50:44,208 INFO L85 PathProgramCache]: Analyzing trace with hash -2060421204, now seen corresponding path program 2 times [2024-11-20 21:50:44,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:50:44,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633434941] [2024-11-20 21:50:44,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:50:44,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:50:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:50:44,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:50:44,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:50:44,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633434941] [2024-11-20 21:50:44,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633434941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:50:44,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:50:44,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 21:50:44,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396164923] [2024-11-20 21:50:44,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:50:44,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 21:50:44,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:50:44,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 21:50:44,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 21:50:44,502 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2024-11-20 21:50:44,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 117 transitions, 884 flow. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 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) [2024-11-20 21:50:44,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:50:44,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2024-11-20 21:50:44,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:50:46,852 INFO L124 PetriNetUnfolderBase]: 9440/16841 cut-off events. [2024-11-20 21:50:46,852 INFO L125 PetriNetUnfolderBase]: For 51814/51855 co-relation queries the response was YES. [2024-11-20 21:50:46,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60451 conditions, 16841 events. 9440/16841 cut-off events. For 51814/51855 co-relation queries the response was YES. Maximal size of possible extension queue 851. Compared 138847 event pairs, 1198 based on Foata normal form. 305/16504 useless extension candidates. Maximal degree in co-relation 51511. Up to 4325 conditions per place. [2024-11-20 21:50:47,035 INFO L140 encePairwiseOnDemand]: 31/45 looper letters, 234 selfloop transitions, 122 changer transitions 24/384 dead transitions. [2024-11-20 21:50:47,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 384 transitions, 3423 flow [2024-11-20 21:50:47,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-20 21:50:47,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-20 21:50:47,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 401 transitions. [2024-11-20 21:50:47,038 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49506172839506174 [2024-11-20 21:50:47,038 INFO L175 Difference]: Start difference. First operand has 101 places, 117 transitions, 884 flow. Second operand 18 states and 401 transitions. [2024-11-20 21:50:47,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 384 transitions, 3423 flow [2024-11-20 21:50:47,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 384 transitions, 3322 flow, removed 34 selfloop flow, removed 2 redundant places. [2024-11-20 21:50:47,426 INFO L231 Difference]: Finished difference. Result has 131 places, 219 transitions, 2233 flow [2024-11-20 21:50:47,427 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=855, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2233, PETRI_PLACES=131, PETRI_TRANSITIONS=219} [2024-11-20 21:50:47,428 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 85 predicate places. [2024-11-20 21:50:47,428 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 219 transitions, 2233 flow [2024-11-20 21:50:47,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 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) [2024-11-20 21:50:47,428 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:50:47,428 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:50:47,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 21:50:47,429 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:50:47,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:50:47,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1153900652, now seen corresponding path program 1 times [2024-11-20 21:50:47,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:50:47,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582169717] [2024-11-20 21:50:47,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:50:47,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:50:47,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:50:47,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:50:47,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:50:47,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582169717] [2024-11-20 21:50:47,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582169717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:50:47,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:50:47,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 21:50:47,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659202661] [2024-11-20 21:50:47,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:50:47,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 21:50:47,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:50:47,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 21:50:47,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 21:50:47,602 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2024-11-20 21:50:47,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 219 transitions, 2233 flow. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 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) [2024-11-20 21:50:47,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:50:47,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2024-11-20 21:50:47,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:50:50,705 INFO L124 PetriNetUnfolderBase]: 11280/20499 cut-off events. [2024-11-20 21:50:50,706 INFO L125 PetriNetUnfolderBase]: For 116321/116362 co-relation queries the response was YES. [2024-11-20 21:50:50,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87258 conditions, 20499 events. 11280/20499 cut-off events. For 116321/116362 co-relation queries the response was YES. Maximal size of possible extension queue 1073. Compared 177672 event pairs, 1175 based on Foata normal form. 468/20290 useless extension candidates. Maximal degree in co-relation 81356. Up to 6650 conditions per place. [2024-11-20 21:50:50,991 INFO L140 encePairwiseOnDemand]: 32/45 looper letters, 330 selfloop transitions, 152 changer transitions 68/554 dead transitions. [2024-11-20 21:50:50,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 554 transitions, 6628 flow [2024-11-20 21:50:50,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 21:50:50,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-20 21:50:50,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 262 transitions. [2024-11-20 21:50:50,993 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5292929292929293 [2024-11-20 21:50:50,993 INFO L175 Difference]: Start difference. First operand has 131 places, 219 transitions, 2233 flow. Second operand 11 states and 262 transitions. [2024-11-20 21:50:50,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 554 transitions, 6628 flow [2024-11-20 21:50:52,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 554 transitions, 6308 flow, removed 159 selfloop flow, removed 1 redundant places. [2024-11-20 21:50:52,458 INFO L231 Difference]: Finished difference. Result has 148 places, 325 transitions, 3783 flow [2024-11-20 21:50:52,458 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=2057, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3783, PETRI_PLACES=148, PETRI_TRANSITIONS=325} [2024-11-20 21:50:52,459 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 102 predicate places. [2024-11-20 21:50:52,459 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 325 transitions, 3783 flow [2024-11-20 21:50:52,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 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) [2024-11-20 21:50:52,459 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:50:52,460 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:50:52,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 21:50:52,460 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:50:52,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:50:52,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1938711532, now seen corresponding path program 2 times [2024-11-20 21:50:52,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:50:52,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467508234] [2024-11-20 21:50:52,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:50:52,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:50:52,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:50:52,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:50:52,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:50:52,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467508234] [2024-11-20 21:50:52,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467508234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:50:52,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:50:52,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 21:50:52,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470904007] [2024-11-20 21:50:52,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:50:52,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 21:50:52,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:50:52,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 21:50:52,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 21:50:52,644 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2024-11-20 21:50:52,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 325 transitions, 3783 flow. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 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) [2024-11-20 21:50:52,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:50:52,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2024-11-20 21:50:52,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:50:56,821 INFO L124 PetriNetUnfolderBase]: 13475/24717 cut-off events. [2024-11-20 21:50:56,821 INFO L125 PetriNetUnfolderBase]: For 221609/221702 co-relation queries the response was YES. [2024-11-20 21:50:57,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123605 conditions, 24717 events. 13475/24717 cut-off events. For 221609/221702 co-relation queries the response was YES. Maximal size of possible extension queue 1352. Compared 222800 event pairs, 1725 based on Foata normal form. 462/24457 useless extension candidates. Maximal degree in co-relation 115054. Up to 7505 conditions per place. [2024-11-20 21:50:57,202 INFO L140 encePairwiseOnDemand]: 31/45 looper letters, 283 selfloop transitions, 343 changer transitions 70/700 dead transitions. [2024-11-20 21:50:57,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 700 transitions, 9514 flow [2024-11-20 21:50:57,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-20 21:50:57,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-20 21:50:57,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 416 transitions. [2024-11-20 21:50:57,207 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5135802469135803 [2024-11-20 21:50:57,207 INFO L175 Difference]: Start difference. First operand has 148 places, 325 transitions, 3783 flow. Second operand 18 states and 416 transitions. [2024-11-20 21:50:57,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 700 transitions, 9514 flow [2024-11-20 21:50:59,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 700 transitions, 9283 flow, removed 114 selfloop flow, removed 1 redundant places. [2024-11-20 21:50:59,107 INFO L231 Difference]: Finished difference. Result has 178 places, 483 transitions, 6858 flow [2024-11-20 21:50:59,107 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=3674, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=185, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6858, PETRI_PLACES=178, PETRI_TRANSITIONS=483} [2024-11-20 21:50:59,108 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 132 predicate places. [2024-11-20 21:50:59,108 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 483 transitions, 6858 flow [2024-11-20 21:50:59,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 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) [2024-11-20 21:50:59,108 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:50:59,108 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:50:59,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 21:50:59,108 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:50:59,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:50:59,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1233529339, now seen corresponding path program 1 times [2024-11-20 21:50:59,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:50:59,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443468137] [2024-11-20 21:50:59,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:50:59,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:50:59,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:50:59,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:50:59,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:50:59,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443468137] [2024-11-20 21:50:59,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443468137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:50:59,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:50:59,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 21:50:59,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722262252] [2024-11-20 21:50:59,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:50:59,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 21:50:59,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:50:59,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 21:50:59,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:50:59,405 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2024-11-20 21:50:59,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 483 transitions, 6858 flow. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:50:59,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:50:59,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2024-11-20 21:50:59,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:51:04,266 INFO L124 PetriNetUnfolderBase]: 14177/26075 cut-off events. [2024-11-20 21:51:04,266 INFO L125 PetriNetUnfolderBase]: For 348243/348353 co-relation queries the response was YES. [2024-11-20 21:51:04,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151343 conditions, 26075 events. 14177/26075 cut-off events. For 348243/348353 co-relation queries the response was YES. Maximal size of possible extension queue 1409. Compared 238749 event pairs, 1990 based on Foata normal form. 234/25533 useless extension candidates. Maximal degree in co-relation 147418. Up to 13982 conditions per place. [2024-11-20 21:51:04,951 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 614 selfloop transitions, 187 changer transitions 21/826 dead transitions. [2024-11-20 21:51:04,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 826 transitions, 13252 flow [2024-11-20 21:51:04,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 21:51:04,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 21:51:04,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 203 transitions. [2024-11-20 21:51:04,954 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45111111111111113 [2024-11-20 21:51:04,955 INFO L175 Difference]: Start difference. First operand has 178 places, 483 transitions, 6858 flow. Second operand 10 states and 203 transitions. [2024-11-20 21:51:04,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 826 transitions, 13252 flow [2024-11-20 21:51:09,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 826 transitions, 12772 flow, removed 153 selfloop flow, removed 2 redundant places. [2024-11-20 21:51:09,193 INFO L231 Difference]: Finished difference. Result has 191 places, 569 transitions, 8281 flow [2024-11-20 21:51:09,193 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=6514, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=483, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8281, PETRI_PLACES=191, PETRI_TRANSITIONS=569} [2024-11-20 21:51:09,194 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 145 predicate places. [2024-11-20 21:51:09,194 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 569 transitions, 8281 flow [2024-11-20 21:51:09,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:51:09,194 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:51:09,194 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:51:09,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 21:51:09,194 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:51:09,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:51:09,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1294297318, now seen corresponding path program 1 times [2024-11-20 21:51:09,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:51:09,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169768748] [2024-11-20 21:51:09,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:51:09,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:51:09,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:51:09,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:51:09,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:51:09,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169768748] [2024-11-20 21:51:09,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169768748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:51:09,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:51:09,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 21:51:09,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91046614] [2024-11-20 21:51:09,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:51:09,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 21:51:09,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:51:09,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 21:51:09,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:51:09,450 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2024-11-20 21:51:09,453 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 569 transitions, 8281 flow. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:51:09,453 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:51:09,453 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2024-11-20 21:51:09,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:51:14,704 INFO L124 PetriNetUnfolderBase]: 14687/27366 cut-off events. [2024-11-20 21:51:14,704 INFO L125 PetriNetUnfolderBase]: For 388550/388653 co-relation queries the response was YES. [2024-11-20 21:51:15,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166973 conditions, 27366 events. 14687/27366 cut-off events. For 388550/388653 co-relation queries the response was YES. Maximal size of possible extension queue 1466. Compared 255406 event pairs, 2123 based on Foata normal form. 318/26803 useless extension candidates. Maximal degree in co-relation 165011. Up to 8850 conditions per place. [2024-11-20 21:51:15,217 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 702 selfloop transitions, 286 changer transitions 40/1032 dead transitions. [2024-11-20 21:51:15,217 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 1032 transitions, 16846 flow [2024-11-20 21:51:15,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 21:51:15,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-20 21:51:15,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 233 transitions. [2024-11-20 21:51:15,220 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43148148148148147 [2024-11-20 21:51:15,220 INFO L175 Difference]: Start difference. First operand has 191 places, 569 transitions, 8281 flow. Second operand 12 states and 233 transitions. [2024-11-20 21:51:15,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 1032 transitions, 16846 flow [2024-11-20 21:51:19,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 1032 transitions, 16758 flow, removed 23 selfloop flow, removed 2 redundant places. [2024-11-20 21:51:19,631 INFO L231 Difference]: Finished difference. Result has 204 places, 659 transitions, 10648 flow [2024-11-20 21:51:19,632 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=7932, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=551, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=178, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=10648, PETRI_PLACES=204, PETRI_TRANSITIONS=659} [2024-11-20 21:51:19,632 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 158 predicate places. [2024-11-20 21:51:19,632 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 659 transitions, 10648 flow [2024-11-20 21:51:19,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:51:19,632 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:51:19,632 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:51:19,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 21:51:19,633 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:51:19,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:51:19,633 INFO L85 PathProgramCache]: Analyzing trace with hash -826949136, now seen corresponding path program 2 times [2024-11-20 21:51:19,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:51:19,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016130347] [2024-11-20 21:51:19,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:51:19,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:51:19,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:51:19,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:51:19,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:51:19,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016130347] [2024-11-20 21:51:19,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016130347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:51:19,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:51:19,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 21:51:19,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877692887] [2024-11-20 21:51:19,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:51:19,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 21:51:19,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:51:19,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 21:51:19,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-20 21:51:19,907 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2024-11-20 21:51:19,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 659 transitions, 10648 flow. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:51:19,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:51:19,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2024-11-20 21:51:19,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:51:26,631 INFO L124 PetriNetUnfolderBase]: 16361/30872 cut-off events. [2024-11-20 21:51:26,631 INFO L125 PetriNetUnfolderBase]: For 500261/500394 co-relation queries the response was YES. [2024-11-20 21:51:26,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199760 conditions, 30872 events. 16361/30872 cut-off events. For 500261/500394 co-relation queries the response was YES. Maximal size of possible extension queue 1665. Compared 297660 event pairs, 7893 based on Foata normal form. 200/30061 useless extension candidates. Maximal degree in co-relation 197592. Up to 24569 conditions per place. [2024-11-20 21:51:27,030 INFO L140 encePairwiseOnDemand]: 33/45 looper letters, 713 selfloop transitions, 43 changer transitions 31/791 dead transitions. [2024-11-20 21:51:27,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 791 transitions, 13896 flow [2024-11-20 21:51:27,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 21:51:27,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 21:51:27,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 183 transitions. [2024-11-20 21:51:27,032 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4066666666666667 [2024-11-20 21:51:27,032 INFO L175 Difference]: Start difference. First operand has 204 places, 659 transitions, 10648 flow. Second operand 10 states and 183 transitions. [2024-11-20 21:51:27,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 791 transitions, 13896 flow [2024-11-20 21:51:32,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 791 transitions, 13733 flow, removed 13 selfloop flow, removed 6 redundant places. [2024-11-20 21:51:32,865 INFO L231 Difference]: Finished difference. Result has 212 places, 685 transitions, 10951 flow [2024-11-20 21:51:32,866 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=10518, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=659, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=628, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=10951, PETRI_PLACES=212, PETRI_TRANSITIONS=685} [2024-11-20 21:51:32,867 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 166 predicate places. [2024-11-20 21:51:32,867 INFO L471 AbstractCegarLoop]: Abstraction has has 212 places, 685 transitions, 10951 flow [2024-11-20 21:51:32,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:51:32,867 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:51:32,867 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:51:32,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 21:51:32,867 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:51:32,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:51:32,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1268601626, now seen corresponding path program 3 times [2024-11-20 21:51:32,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:51:32,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781020258] [2024-11-20 21:51:32,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:51:32,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:51:32,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:51:33,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:51:33,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:51:33,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781020258] [2024-11-20 21:51:33,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781020258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:51:33,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:51:33,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 21:51:33,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576305875] [2024-11-20 21:51:33,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:51:33,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 21:51:33,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:51:33,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 21:51:33,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:51:33,093 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2024-11-20 21:51:33,093 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 685 transitions, 10951 flow. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:51:33,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:51:33,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2024-11-20 21:51:33,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand