./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_1-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_1-container_of.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash edceb7bcc6473f68e1454dc7ab02ec33e8dca99fdd725419b9e71852c466530e --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 09:28:26,720 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 09:28:26,810 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 09:28:26,817 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 09:28:26,818 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 09:28:26,848 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 09:28:26,849 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 09:28:26,850 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 09:28:26,850 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 09:28:26,851 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 09:28:26,853 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 09:28:26,853 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 09:28:26,853 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 09:28:26,854 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 09:28:26,854 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 09:28:26,857 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 09:28:26,858 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 09:28:26,858 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 09:28:26,858 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 09:28:26,858 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 09:28:26,859 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 09:28:26,859 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 09:28:26,859 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 09:28:26,860 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 09:28:26,861 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 09:28:26,861 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 09:28:26,861 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 09:28:26,862 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 09:28:26,862 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 09:28:26,862 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 09:28:26,862 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 09:28:26,863 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 09:28:26,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:28:26,864 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 09:28:26,864 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 09:28:26,864 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 09:28:26,865 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 09:28:26,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 09:28:26,865 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 09:28:26,866 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 09:28:26,866 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 09:28:26,866 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 09:28:26,866 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edceb7bcc6473f68e1454dc7ab02ec33e8dca99fdd725419b9e71852c466530e [2024-11-20 09:28:27,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 09:28:27,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 09:28:27,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 09:28:27,166 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 09:28:27,167 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 09:28:27,168 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2024-11-20 09:28:28,606 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 09:28:28,909 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 09:28:28,910 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2024-11-20 09:28:28,945 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c77250481/2044743a10504e4fab4afc19cbbf72b0/FLAG59d7f8c8a [2024-11-20 09:28:28,968 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c77250481/2044743a10504e4fab4afc19cbbf72b0 [2024-11-20 09:28:28,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 09:28:28,972 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 09:28:28,975 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 09:28:28,976 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 09:28:28,982 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 09:28:28,983 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:28:28" (1/1) ... [2024-11-20 09:28:28,984 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b2fd4d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:28, skipping insertion in model container [2024-11-20 09:28:28,984 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:28:28" (1/1) ... [2024-11-20 09:28:29,058 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 09:28:29,454 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_1-container_of.i[186203,186216] [2024-11-20 09:28:29,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:28:29,496 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 09:28:29,581 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_1-container_of.i[186203,186216] [2024-11-20 09:28:29,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:28:29,663 INFO L204 MainTranslator]: Completed translation [2024-11-20 09:28:29,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:29 WrapperNode [2024-11-20 09:28:29,664 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 09:28:29,665 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 09:28:29,666 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 09:28:29,666 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 09:28:29,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:29" (1/1) ... [2024-11-20 09:28:29,703 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:29" (1/1) ... [2024-11-20 09:28:29,736 INFO L138 Inliner]: procedures = 246, calls = 39, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 126 [2024-11-20 09:28:29,737 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 09:28:29,737 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 09:28:29,738 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 09:28:29,738 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 09:28:29,747 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:29" (1/1) ... [2024-11-20 09:28:29,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:29" (1/1) ... [2024-11-20 09:28:29,752 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:29" (1/1) ... [2024-11-20 09:28:29,776 INFO L175 MemorySlicer]: Split 17 memory accesses to 3 slices as follows [2, 13, 2]. 76 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 8 writes are split as follows [0, 6, 2]. [2024-11-20 09:28:29,776 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:29" (1/1) ... [2024-11-20 09:28:29,777 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:29" (1/1) ... [2024-11-20 09:28:29,801 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:29" (1/1) ... [2024-11-20 09:28:29,803 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:29" (1/1) ... [2024-11-20 09:28:29,811 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:29" (1/1) ... [2024-11-20 09:28:29,813 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:29" (1/1) ... [2024-11-20 09:28:29,821 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 09:28:29,822 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 09:28:29,823 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 09:28:29,823 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 09:28:29,824 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:29" (1/1) ... [2024-11-20 09:28:29,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:28:29,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:28:29,862 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 09:28:29,864 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 09:28:29,910 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-11-20 09:28:29,910 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-11-20 09:28:29,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 09:28:29,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 09:28:29,910 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 09:28:29,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 09:28:29,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 09:28:29,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 09:28:29,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 09:28:29,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 09:28:29,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 09:28:29,911 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 09:28:29,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 09:28:29,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 09:28:29,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 09:28:29,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-20 09:28:29,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 09:28:29,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 09:28:29,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 09:28:29,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 09:28:29,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 09:28:29,915 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 09:28:30,149 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 09:28:30,151 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 09:28:30,393 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 09:28:30,393 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 09:28:30,548 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 09:28:30,551 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 09:28:30,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:30 BoogieIcfgContainer [2024-11-20 09:28:30,553 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 09:28:30,555 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 09:28:30,559 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 09:28:30,562 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 09:28:30,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:28:28" (1/3) ... [2024-11-20 09:28:30,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@276da2d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:28:30, skipping insertion in model container [2024-11-20 09:28:30,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:29" (2/3) ... [2024-11-20 09:28:30,565 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@276da2d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:28:30, skipping insertion in model container [2024-11-20 09:28:30,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:30" (3/3) ... [2024-11-20 09:28:30,567 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2024-11-20 09:28:30,583 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 09:28:30,583 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-20 09:28:30,583 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 09:28:30,637 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-20 09:28:30,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 60 transitions, 134 flow [2024-11-20 09:28:30,715 INFO L124 PetriNetUnfolderBase]: 10/73 cut-off events. [2024-11-20 09:28:30,716 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 09:28:30,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 73 events. 10/73 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 136 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 39. Up to 4 conditions per place. [2024-11-20 09:28:30,721 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 60 transitions, 134 flow [2024-11-20 09:28:30,728 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 53 transitions, 118 flow [2024-11-20 09:28:30,741 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 09:28:30,754 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;@20ff03ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 09:28:30,754 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-20 09:28:30,759 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 09:28:30,759 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2024-11-20 09:28:30,759 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 09:28:30,760 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:28:30,761 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-20 09:28:30,761 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-20 09:28:30,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:28:30,769 INFO L85 PathProgramCache]: Analyzing trace with hash 13054026, now seen corresponding path program 1 times [2024-11-20 09:28:30,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:28:30,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725099109] [2024-11-20 09:28:30,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:28:30,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:28:31,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:28:31,381 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 09:28:31,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:28:31,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725099109] [2024-11-20 09:28:31,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725099109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:28:31,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:28:31,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:28:31,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434651644] [2024-11-20 09:28:31,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:28:31,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:28:31,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:28:31,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:28:31,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:28:31,449 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-20 09:28:31,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 53 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 09:28:31,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:28:31,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-20 09:28:31,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:28:31,762 INFO L124 PetriNetUnfolderBase]: 466/835 cut-off events. [2024-11-20 09:28:31,763 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-20 09:28:31,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1660 conditions, 835 events. 466/835 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3555 event pairs, 345 based on Foata normal form. 3/834 useless extension candidates. Maximal degree in co-relation 1550. Up to 602 conditions per place. [2024-11-20 09:28:31,775 INFO L140 encePairwiseOnDemand]: 45/60 looper letters, 39 selfloop transitions, 10 changer transitions 0/54 dead transitions. [2024-11-20 09:28:31,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 54 transitions, 218 flow [2024-11-20 09:28:31,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:28:31,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 09:28:31,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2024-11-20 09:28:31,790 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2024-11-20 09:28:31,793 INFO L175 Difference]: Start difference. First operand has 53 places, 53 transitions, 118 flow. Second operand 3 states and 84 transitions. [2024-11-20 09:28:31,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 54 transitions, 218 flow [2024-11-20 09:28:31,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 54 transitions, 210 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-20 09:28:31,800 INFO L231 Difference]: Finished difference. Result has 47 places, 44 transitions, 112 flow [2024-11-20 09:28:31,802 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=47, PETRI_TRANSITIONS=44} [2024-11-20 09:28:31,806 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, -6 predicate places. [2024-11-20 09:28:31,808 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 44 transitions, 112 flow [2024-11-20 09:28:31,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 09:28:31,808 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:28:31,808 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-20 09:28:31,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 09:28:31,809 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-20 09:28:31,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:28:31,810 INFO L85 PathProgramCache]: Analyzing trace with hash -339911441, now seen corresponding path program 1 times [2024-11-20 09:28:31,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:28:31,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123192093] [2024-11-20 09:28:31,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:28:31,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:28:31,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:28:32,023 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 09:28:32,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:28:32,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123192093] [2024-11-20 09:28:32,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123192093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:28:32,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:28:32,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 09:28:32,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690092] [2024-11-20 09:28:32,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:28:32,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 09:28:32,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:28:32,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 09:28:32,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 09:28:32,051 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-20 09:28:32,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 44 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 09:28:32,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:28:32,052 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-20 09:28:32,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:28:32,292 INFO L124 PetriNetUnfolderBase]: 466/821 cut-off events. [2024-11-20 09:28:32,293 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-11-20 09:28:32,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1712 conditions, 821 events. 466/821 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3485 event pairs, 155 based on Foata normal form. 1/821 useless extension candidates. Maximal degree in co-relation 818. Up to 553 conditions per place. [2024-11-20 09:28:32,302 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 47 selfloop transitions, 11 changer transitions 0/62 dead transitions. [2024-11-20 09:28:32,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 62 transitions, 265 flow [2024-11-20 09:28:32,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 09:28:32,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 09:28:32,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 109 transitions. [2024-11-20 09:28:32,306 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36333333333333334 [2024-11-20 09:28:32,308 INFO L175 Difference]: Start difference. First operand has 47 places, 44 transitions, 112 flow. Second operand 5 states and 109 transitions. [2024-11-20 09:28:32,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 62 transitions, 265 flow [2024-11-20 09:28:32,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 62 transitions, 245 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 09:28:32,315 INFO L231 Difference]: Finished difference. Result has 48 places, 45 transitions, 126 flow [2024-11-20 09:28:32,318 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=126, PETRI_PLACES=48, PETRI_TRANSITIONS=45} [2024-11-20 09:28:32,319 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, -5 predicate places. [2024-11-20 09:28:32,319 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 45 transitions, 126 flow [2024-11-20 09:28:32,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 09:28:32,319 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:28:32,319 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:28:32,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 09:28:32,320 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-20 09:28:32,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:28:32,320 INFO L85 PathProgramCache]: Analyzing trace with hash 80723095, now seen corresponding path program 1 times [2024-11-20 09:28:32,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:28:32,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444147358] [2024-11-20 09:28:32,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:28:32,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:28:32,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:28:32,538 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 09:28:32,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:28:32,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444147358] [2024-11-20 09:28:32,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444147358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:28:32,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:28:32,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 09:28:32,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687820159] [2024-11-20 09:28:32,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:28:32,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 09:28:32,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:28:32,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 09:28:32,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 09:28:32,568 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-20 09:28:32,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 45 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 09:28:32,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:28:32,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-20 09:28:32,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:28:32,826 INFO L124 PetriNetUnfolderBase]: 562/1029 cut-off events. [2024-11-20 09:28:32,826 INFO L125 PetriNetUnfolderBase]: For 176/176 co-relation queries the response was YES. [2024-11-20 09:28:32,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2319 conditions, 1029 events. 562/1029 cut-off events. For 176/176 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4890 event pairs, 252 based on Foata normal form. 64/1092 useless extension candidates. Maximal degree in co-relation 228. Up to 545 conditions per place. [2024-11-20 09:28:32,834 INFO L140 encePairwiseOnDemand]: 47/60 looper letters, 49 selfloop transitions, 10 changer transitions 4/67 dead transitions. [2024-11-20 09:28:32,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 67 transitions, 306 flow [2024-11-20 09:28:32,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 09:28:32,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 09:28:32,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 102 transitions. [2024-11-20 09:28:32,840 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.425 [2024-11-20 09:28:32,840 INFO L175 Difference]: Start difference. First operand has 48 places, 45 transitions, 126 flow. Second operand 4 states and 102 transitions. [2024-11-20 09:28:32,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 67 transitions, 306 flow [2024-11-20 09:28:32,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 67 transitions, 286 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-20 09:28:32,845 INFO L231 Difference]: Finished difference. Result has 50 places, 44 transitions, 150 flow [2024-11-20 09:28:32,845 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=150, PETRI_PLACES=50, PETRI_TRANSITIONS=44} [2024-11-20 09:28:32,846 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, -3 predicate places. [2024-11-20 09:28:32,847 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 150 flow [2024-11-20 09:28:32,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 09:28:32,847 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:28:32,847 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:28:32,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 09:28:32,848 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-20 09:28:32,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:28:32,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1652907070, now seen corresponding path program 1 times [2024-11-20 09:28:32,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:28:32,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036679133] [2024-11-20 09:28:32,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:28:32,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:28:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:28:32,988 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 09:28:32,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:28:32,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036679133] [2024-11-20 09:28:32,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036679133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:28:32,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:28:32,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 09:28:32,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441531499] [2024-11-20 09:28:32,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:28:32,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 09:28:32,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:28:32,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 09:28:32,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 09:28:32,996 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 60 [2024-11-20 09:28:32,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 150 flow. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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 09:28:32,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:28:32,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 60 [2024-11-20 09:28:32,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:28:33,159 INFO L124 PetriNetUnfolderBase]: 225/408 cut-off events. [2024-11-20 09:28:33,160 INFO L125 PetriNetUnfolderBase]: For 99/99 co-relation queries the response was YES. [2024-11-20 09:28:33,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 958 conditions, 408 events. 225/408 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1435 event pairs, 46 based on Foata normal form. 0/408 useless extension candidates. Maximal degree in co-relation 927. Up to 217 conditions per place. [2024-11-20 09:28:33,163 INFO L140 encePairwiseOnDemand]: 57/60 looper letters, 48 selfloop transitions, 3 changer transitions 0/58 dead transitions. [2024-11-20 09:28:33,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 58 transitions, 278 flow [2024-11-20 09:28:33,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 09:28:33,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 09:28:33,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 131 transitions. [2024-11-20 09:28:33,167 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5458333333333333 [2024-11-20 09:28:33,167 INFO L175 Difference]: Start difference. First operand has 50 places, 44 transitions, 150 flow. Second operand 4 states and 131 transitions. [2024-11-20 09:28:33,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 58 transitions, 278 flow [2024-11-20 09:28:33,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 58 transitions, 248 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-20 09:28:33,171 INFO L231 Difference]: Finished difference. Result has 41 places, 36 transitions, 96 flow [2024-11-20 09:28:33,172 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=96, PETRI_PLACES=41, PETRI_TRANSITIONS=36} [2024-11-20 09:28:33,173 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, -12 predicate places. [2024-11-20 09:28:33,173 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 36 transitions, 96 flow [2024-11-20 09:28:33,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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 09:28:33,174 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:28:33,174 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:28:33,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 09:28:33,175 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-20 09:28:33,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:28:33,176 INFO L85 PathProgramCache]: Analyzing trace with hash -62179198, now seen corresponding path program 1 times [2024-11-20 09:28:33,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:28:33,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142905496] [2024-11-20 09:28:33,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:28:33,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:28:33,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:28:33,707 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 09:28:33,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:28:33,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142905496] [2024-11-20 09:28:33,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142905496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:28:33,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:28:33,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 09:28:33,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47749666] [2024-11-20 09:28:33,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:28:33,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 09:28:33,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:28:33,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 09:28:33,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 09:28:33,711 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-11-20 09:28:33,711 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 36 transitions, 96 flow. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 7 states have internal predecessors, (179), 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 09:28:33,711 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:28:33,711 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-11-20 09:28:33,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:28:34,213 INFO L124 PetriNetUnfolderBase]: 483/862 cut-off events. [2024-11-20 09:28:34,214 INFO L125 PetriNetUnfolderBase]: For 304/304 co-relation queries the response was YES. [2024-11-20 09:28:34,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2098 conditions, 862 events. 483/862 cut-off events. For 304/304 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3897 event pairs, 64 based on Foata normal form. 8/868 useless extension candidates. Maximal degree in co-relation 366. Up to 223 conditions per place. [2024-11-20 09:28:34,219 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 83 selfloop transitions, 23 changer transitions 0/113 dead transitions. [2024-11-20 09:28:34,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 113 transitions, 539 flow [2024-11-20 09:28:34,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 09:28:34,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 09:28:34,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 317 transitions. [2024-11-20 09:28:34,221 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5283333333333333 [2024-11-20 09:28:34,221 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 96 flow. Second operand 10 states and 317 transitions. [2024-11-20 09:28:34,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 113 transitions, 539 flow [2024-11-20 09:28:34,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 113 transitions, 519 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 09:28:34,225 INFO L231 Difference]: Finished difference. Result has 56 places, 56 transitions, 272 flow [2024-11-20 09:28:34,225 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=272, PETRI_PLACES=56, PETRI_TRANSITIONS=56} [2024-11-20 09:28:34,226 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 3 predicate places. [2024-11-20 09:28:34,226 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 56 transitions, 272 flow [2024-11-20 09:28:34,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 7 states have internal predecessors, (179), 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 09:28:34,226 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:28:34,227 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:28:34,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 09:28:34,227 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-20 09:28:34,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:28:34,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1900616770, now seen corresponding path program 2 times [2024-11-20 09:28:34,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:28:34,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318069369] [2024-11-20 09:28:34,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:28:34,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:28:34,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:28:34,886 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 09:28:34,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:28:34,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318069369] [2024-11-20 09:28:34,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318069369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:28:34,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:28:34,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 09:28:34,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543188683] [2024-11-20 09:28:34,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:28:34,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 09:28:34,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:28:34,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 09:28:34,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-20 09:28:34,890 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-11-20 09:28:34,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 56 transitions, 272 flow. Second operand has 8 states, 8 states have (on average 25.125) internal successors, (201), 8 states have internal predecessors, (201), 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 09:28:34,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:28:34,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-11-20 09:28:34,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:28:35,405 INFO L124 PetriNetUnfolderBase]: 537/964 cut-off events. [2024-11-20 09:28:35,406 INFO L125 PetriNetUnfolderBase]: For 1460/1460 co-relation queries the response was YES. [2024-11-20 09:28:35,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3246 conditions, 964 events. 537/964 cut-off events. For 1460/1460 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 4456 event pairs, 30 based on Foata normal form. 8/970 useless extension candidates. Maximal degree in co-relation 1740. Up to 330 conditions per place. [2024-11-20 09:28:35,412 INFO L140 encePairwiseOnDemand]: 50/60 looper letters, 78 selfloop transitions, 49 changer transitions 0/134 dead transitions. [2024-11-20 09:28:35,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 134 transitions, 966 flow [2024-11-20 09:28:35,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 09:28:35,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-20 09:28:35,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 348 transitions. [2024-11-20 09:28:35,414 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48333333333333334 [2024-11-20 09:28:35,415 INFO L175 Difference]: Start difference. First operand has 56 places, 56 transitions, 272 flow. Second operand 12 states and 348 transitions. [2024-11-20 09:28:35,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 134 transitions, 966 flow [2024-11-20 09:28:35,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 134 transitions, 952 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 09:28:35,421 INFO L231 Difference]: Finished difference. Result has 70 places, 86 transitions, 640 flow [2024-11-20 09:28:35,421 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=640, PETRI_PLACES=70, PETRI_TRANSITIONS=86} [2024-11-20 09:28:35,422 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 17 predicate places. [2024-11-20 09:28:35,422 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 86 transitions, 640 flow [2024-11-20 09:28:35,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 25.125) internal successors, (201), 8 states have internal predecessors, (201), 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 09:28:35,422 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:28:35,423 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:28:35,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 09:28:35,423 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-20 09:28:35,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:28:35,424 INFO L85 PathProgramCache]: Analyzing trace with hash -426585704, now seen corresponding path program 3 times [2024-11-20 09:28:35,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:28:35,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175193386] [2024-11-20 09:28:35,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:28:35,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:28:35,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:28:36,351 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 09:28:36,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:28:36,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175193386] [2024-11-20 09:28:36,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175193386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:28:36,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:28:36,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 09:28:36,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952458665] [2024-11-20 09:28:36,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:28:36,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 09:28:36,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:28:36,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 09:28:36,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-20 09:28:36,401 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-20 09:28:36,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 86 transitions, 640 flow. Second operand has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 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 09:28:36,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:28:36,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-20 09:28:36,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:28:37,328 INFO L124 PetriNetUnfolderBase]: 834/1543 cut-off events. [2024-11-20 09:28:37,329 INFO L125 PetriNetUnfolderBase]: For 4885/4885 co-relation queries the response was YES. [2024-11-20 09:28:37,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6024 conditions, 1543 events. 834/1543 cut-off events. For 4885/4885 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 8357 event pairs, 88 based on Foata normal form. 0/1541 useless extension candidates. Maximal degree in co-relation 3651. Up to 548 conditions per place. [2024-11-20 09:28:37,341 INFO L140 encePairwiseOnDemand]: 45/60 looper letters, 121 selfloop transitions, 56 changer transitions 0/179 dead transitions. [2024-11-20 09:28:37,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 179 transitions, 1599 flow [2024-11-20 09:28:37,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 09:28:37,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-20 09:28:37,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 261 transitions. [2024-11-20 09:28:37,343 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.29 [2024-11-20 09:28:37,343 INFO L175 Difference]: Start difference. First operand has 70 places, 86 transitions, 640 flow. Second operand 15 states and 261 transitions. [2024-11-20 09:28:37,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 179 transitions, 1599 flow [2024-11-20 09:28:37,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 179 transitions, 1518 flow, removed 30 selfloop flow, removed 4 redundant places. [2024-11-20 09:28:37,356 INFO L231 Difference]: Finished difference. Result has 88 places, 106 transitions, 966 flow [2024-11-20 09:28:37,356 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=966, PETRI_PLACES=88, PETRI_TRANSITIONS=106} [2024-11-20 09:28:37,357 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 35 predicate places. [2024-11-20 09:28:37,357 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 106 transitions, 966 flow [2024-11-20 09:28:37,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 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 09:28:37,358 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:28:37,358 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:28:37,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 09:28:37,358 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-20 09:28:37,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:28:37,359 INFO L85 PathProgramCache]: Analyzing trace with hash -974318922, now seen corresponding path program 4 times [2024-11-20 09:28:37,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:28:37,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858024329] [2024-11-20 09:28:37,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:28:37,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:28:37,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:28:38,300 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 09:28:38,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:28:38,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858024329] [2024-11-20 09:28:38,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858024329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:28:38,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:28:38,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 09:28:38,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398551402] [2024-11-20 09:28:38,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:28:38,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 09:28:38,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:28:38,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 09:28:38,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-20 09:28:38,348 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-20 09:28:38,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 106 transitions, 966 flow. Second operand has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 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 09:28:38,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:28:38,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-20 09:28:38,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:28:39,716 INFO L124 PetriNetUnfolderBase]: 1087/2034 cut-off events. [2024-11-20 09:28:39,716 INFO L125 PetriNetUnfolderBase]: For 7722/7722 co-relation queries the response was YES. [2024-11-20 09:28:39,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8522 conditions, 2034 events. 1087/2034 cut-off events. For 7722/7722 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 11896 event pairs, 113 based on Foata normal form. 1/2035 useless extension candidates. Maximal degree in co-relation 8471. Up to 855 conditions per place. [2024-11-20 09:28:39,735 INFO L140 encePairwiseOnDemand]: 45/60 looper letters, 127 selfloop transitions, 79 changer transitions 0/208 dead transitions. [2024-11-20 09:28:39,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 208 transitions, 2065 flow [2024-11-20 09:28:39,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-20 09:28:39,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-20 09:28:39,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 298 transitions. [2024-11-20 09:28:39,768 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2759259259259259 [2024-11-20 09:28:39,768 INFO L175 Difference]: Start difference. First operand has 88 places, 106 transitions, 966 flow. Second operand 18 states and 298 transitions. [2024-11-20 09:28:39,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 208 transitions, 2065 flow [2024-11-20 09:28:39,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 208 transitions, 2013 flow, removed 17 selfloop flow, removed 3 redundant places. [2024-11-20 09:28:39,795 INFO L231 Difference]: Finished difference. Result has 110 places, 129 transitions, 1412 flow [2024-11-20 09:28:39,796 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=924, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1412, PETRI_PLACES=110, PETRI_TRANSITIONS=129} [2024-11-20 09:28:39,797 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 57 predicate places. [2024-11-20 09:28:39,799 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 129 transitions, 1412 flow [2024-11-20 09:28:39,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 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 09:28:39,800 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:28:39,800 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:28:39,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 09:28:39,800 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-20 09:28:39,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:28:39,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1547105784, now seen corresponding path program 5 times [2024-11-20 09:28:39,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:28:39,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593003263] [2024-11-20 09:28:39,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:28:39,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:28:39,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:28:40,740 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 09:28:40,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:28:40,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593003263] [2024-11-20 09:28:40,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593003263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:28:40,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:28:40,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 09:28:40,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961213828] [2024-11-20 09:28:40,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:28:40,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 09:28:40,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:28:40,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 09:28:40,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-20 09:28:40,769 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-20 09:28:40,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 129 transitions, 1412 flow. Second operand has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 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 09:28:40,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:28:40,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-20 09:28:40,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:28:41,912 INFO L124 PetriNetUnfolderBase]: 1087/2032 cut-off events. [2024-11-20 09:28:41,912 INFO L125 PetriNetUnfolderBase]: For 10996/10996 co-relation queries the response was YES. [2024-11-20 09:28:41,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9183 conditions, 2032 events. 1087/2032 cut-off events. For 10996/10996 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 11717 event pairs, 100 based on Foata normal form. 1/2033 useless extension candidates. Maximal degree in co-relation 9123. Up to 498 conditions per place. [2024-11-20 09:28:41,935 INFO L140 encePairwiseOnDemand]: 45/60 looper letters, 132 selfloop transitions, 93 changer transitions 0/227 dead transitions. [2024-11-20 09:28:41,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 227 transitions, 2501 flow [2024-11-20 09:28:41,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 09:28:41,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-20 09:28:41,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 324 transitions. [2024-11-20 09:28:41,939 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.28421052631578947 [2024-11-20 09:28:41,939 INFO L175 Difference]: Start difference. First operand has 110 places, 129 transitions, 1412 flow. Second operand 19 states and 324 transitions. [2024-11-20 09:28:41,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 227 transitions, 2501 flow [2024-11-20 09:28:41,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 227 transitions, 2425 flow, removed 7 selfloop flow, removed 7 redundant places. [2024-11-20 09:28:41,982 INFO L231 Difference]: Finished difference. Result has 133 places, 149 transitions, 1879 flow [2024-11-20 09:28:41,983 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=1349, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1879, PETRI_PLACES=133, PETRI_TRANSITIONS=149} [2024-11-20 09:28:41,983 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 80 predicate places. [2024-11-20 09:28:41,987 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 149 transitions, 1879 flow [2024-11-20 09:28:41,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 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 09:28:41,988 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:28:41,988 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:28:41,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 09:28:41,988 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-20 09:28:41,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:28:41,989 INFO L85 PathProgramCache]: Analyzing trace with hash 2101411976, now seen corresponding path program 6 times [2024-11-20 09:28:41,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:28:41,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147321411] [2024-11-20 09:28:41,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:28:41,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:28:42,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:28:43,067 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 09:28:43,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:28:43,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147321411] [2024-11-20 09:28:43,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147321411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:28:43,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:28:43,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 09:28:43,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28862453] [2024-11-20 09:28:43,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:28:43,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 09:28:43,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:28:43,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 09:28:43,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-20 09:28:43,109 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-20 09:28:43,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 149 transitions, 1879 flow. Second operand has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 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 09:28:43,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:28:43,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-20 09:28:43,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:28:44,359 INFO L124 PetriNetUnfolderBase]: 1087/2028 cut-off events. [2024-11-20 09:28:44,359 INFO L125 PetriNetUnfolderBase]: For 15015/15015 co-relation queries the response was YES. [2024-11-20 09:28:44,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9986 conditions, 2028 events. 1087/2028 cut-off events. For 15015/15015 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 11753 event pairs, 199 based on Foata normal form. 2/2030 useless extension candidates. Maximal degree in co-relation 9924. Up to 605 conditions per place. [2024-11-20 09:28:44,377 INFO L140 encePairwiseOnDemand]: 45/60 looper letters, 153 selfloop transitions, 90 changer transitions 0/244 dead transitions. [2024-11-20 09:28:44,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 244 transitions, 3057 flow [2024-11-20 09:28:44,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 09:28:44,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-20 09:28:44,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 326 transitions. [2024-11-20 09:28:44,381 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.28596491228070176 [2024-11-20 09:28:44,381 INFO L175 Difference]: Start difference. First operand has 133 places, 149 transitions, 1879 flow. Second operand 19 states and 326 transitions. [2024-11-20 09:28:44,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 244 transitions, 3057 flow [2024-11-20 09:28:44,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 244 transitions, 2959 flow, removed 19 selfloop flow, removed 8 redundant places. [2024-11-20 09:28:44,438 INFO L231 Difference]: Finished difference. Result has 143 places, 161 transitions, 2221 flow [2024-11-20 09:28:44,440 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=1774, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=2221, PETRI_PLACES=143, PETRI_TRANSITIONS=161} [2024-11-20 09:28:44,441 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 90 predicate places. [2024-11-20 09:28:44,443 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 161 transitions, 2221 flow [2024-11-20 09:28:44,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 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 09:28:44,443 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:28:44,443 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:28:44,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 09:28:44,444 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-20 09:28:44,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:28:44,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1166142421, now seen corresponding path program 1 times [2024-11-20 09:28:44,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:28:44,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891084399] [2024-11-20 09:28:44,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:28:44,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:28:44,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:28:44,790 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 09:28:44,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:28:44,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891084399] [2024-11-20 09:28:44,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891084399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:28:44,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:28:44,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 09:28:44,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751909882] [2024-11-20 09:28:44,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:28:44,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 09:28:44,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:28:44,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 09:28:44,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 09:28:44,793 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-11-20 09:28:44,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 161 transitions, 2221 flow. Second operand has 7 states, 7 states have (on average 25.714285714285715) internal successors, (180), 7 states have internal predecessors, (180), 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 09:28:44,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:28:44,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-11-20 09:28:44,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:28:45,260 INFO L124 PetriNetUnfolderBase]: 1011/1910 cut-off events. [2024-11-20 09:28:45,261 INFO L125 PetriNetUnfolderBase]: For 15994/15994 co-relation queries the response was YES. [2024-11-20 09:28:45,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9723 conditions, 1910 events. 1011/1910 cut-off events. For 15994/15994 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 11201 event pairs, 152 based on Foata normal form. 14/1924 useless extension candidates. Maximal degree in co-relation 9171. Up to 1172 conditions per place. [2024-11-20 09:28:45,282 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 125 selfloop transitions, 94 changer transitions 0/230 dead transitions. [2024-11-20 09:28:45,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 230 transitions, 3589 flow [2024-11-20 09:28:45,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 09:28:45,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 09:28:45,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 272 transitions. [2024-11-20 09:28:45,284 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5037037037037037 [2024-11-20 09:28:45,285 INFO L175 Difference]: Start difference. First operand has 143 places, 161 transitions, 2221 flow. Second operand 9 states and 272 transitions. [2024-11-20 09:28:45,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 230 transitions, 3589 flow [2024-11-20 09:28:45,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 230 transitions, 3381 flow, removed 41 selfloop flow, removed 9 redundant places. [2024-11-20 09:28:45,339 INFO L231 Difference]: Finished difference. Result has 148 places, 199 transitions, 3067 flow [2024-11-20 09:28:45,339 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=2058, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3067, PETRI_PLACES=148, PETRI_TRANSITIONS=199} [2024-11-20 09:28:45,340 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 95 predicate places. [2024-11-20 09:28:45,340 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 199 transitions, 3067 flow [2024-11-20 09:28:45,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.714285714285715) internal successors, (180), 7 states have internal predecessors, (180), 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 09:28:45,340 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:28:45,341 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:28:45,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 09:28:45,341 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-20 09:28:45,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:28:45,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1134493529, now seen corresponding path program 2 times [2024-11-20 09:28:45,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:28:45,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673454053] [2024-11-20 09:28:45,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:28:45,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:28:45,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:28:46,473 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 09:28:46,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:28:46,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673454053] [2024-11-20 09:28:46,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673454053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:28:46,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:28:46,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-20 09:28:46,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196448860] [2024-11-20 09:28:46,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:28:46,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 09:28:46,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:28:46,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 09:28:46,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-20 09:28:46,492 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-20 09:28:46,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 199 transitions, 3067 flow. Second operand has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 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 09:28:46,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:28:46,493 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-20 09:28:46,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:28:47,229 INFO L124 PetriNetUnfolderBase]: 1011/1908 cut-off events. [2024-11-20 09:28:47,229 INFO L125 PetriNetUnfolderBase]: For 17158/17158 co-relation queries the response was YES. [2024-11-20 09:28:47,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10236 conditions, 1908 events. 1011/1908 cut-off events. For 17158/17158 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 11017 event pairs, 249 based on Foata normal form. 1/1909 useless extension candidates. Maximal degree in co-relation 9862. Up to 1520 conditions per place. [2024-11-20 09:28:47,243 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 135 selfloop transitions, 74 changer transitions 47/257 dead transitions. [2024-11-20 09:28:47,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 257 transitions, 4196 flow [2024-11-20 09:28:47,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 09:28:47,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-20 09:28:47,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 231 transitions. [2024-11-20 09:28:47,245 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.275 [2024-11-20 09:28:47,245 INFO L175 Difference]: Start difference. First operand has 148 places, 199 transitions, 3067 flow. Second operand 14 states and 231 transitions. [2024-11-20 09:28:47,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 257 transitions, 4196 flow [2024-11-20 09:28:47,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 257 transitions, 4050 flow, removed 67 selfloop flow, removed 1 redundant places. [2024-11-20 09:28:47,316 INFO L231 Difference]: Finished difference. Result has 165 places, 197 transitions, 3193 flow [2024-11-20 09:28:47,316 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=2977, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3193, PETRI_PLACES=165, PETRI_TRANSITIONS=197} [2024-11-20 09:28:47,317 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 112 predicate places. [2024-11-20 09:28:47,319 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 197 transitions, 3193 flow [2024-11-20 09:28:47,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 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 09:28:47,319 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:28:47,319 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:28:47,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 09:28:47,320 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-20 09:28:47,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:28:47,320 INFO L85 PathProgramCache]: Analyzing trace with hash -155311481, now seen corresponding path program 3 times [2024-11-20 09:28:47,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:28:47,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886348910] [2024-11-20 09:28:47,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:28:47,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:28:47,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:28:48,316 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 09:28:48,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:28:48,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886348910] [2024-11-20 09:28:48,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886348910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:28:48,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:28:48,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-20 09:28:48,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576578554] [2024-11-20 09:28:48,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:28:48,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 09:28:48,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:28:48,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 09:28:48,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-20 09:28:48,357 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-20 09:28:48,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 197 transitions, 3193 flow. Second operand has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 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 09:28:48,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:28:48,358 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-20 09:28:48,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:28:49,153 INFO L124 PetriNetUnfolderBase]: 1003/1900 cut-off events. [2024-11-20 09:28:49,153 INFO L125 PetriNetUnfolderBase]: For 17446/17446 co-relation queries the response was YES. [2024-11-20 09:28:49,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10173 conditions, 1900 events. 1003/1900 cut-off events. For 17446/17446 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 11148 event pairs, 277 based on Foata normal form. 1/1901 useless extension candidates. Maximal degree in co-relation 10095. Up to 1411 conditions per place. [2024-11-20 09:28:49,172 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 149 selfloop transitions, 58 changer transitions 45/253 dead transitions. [2024-11-20 09:28:49,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 253 transitions, 4203 flow [2024-11-20 09:28:49,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 09:28:49,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-20 09:28:49,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 220 transitions. [2024-11-20 09:28:49,174 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.28205128205128205 [2024-11-20 09:28:49,174 INFO L175 Difference]: Start difference. First operand has 165 places, 197 transitions, 3193 flow. Second operand 13 states and 220 transitions. [2024-11-20 09:28:49,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 253 transitions, 4203 flow [2024-11-20 09:28:49,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 253 transitions, 4049 flow, removed 14 selfloop flow, removed 11 redundant places. [2024-11-20 09:28:49,244 INFO L231 Difference]: Finished difference. Result has 158 places, 185 transitions, 3014 flow [2024-11-20 09:28:49,244 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=3056, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3014, PETRI_PLACES=158, PETRI_TRANSITIONS=185} [2024-11-20 09:28:49,245 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 105 predicate places. [2024-11-20 09:28:49,245 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 185 transitions, 3014 flow [2024-11-20 09:28:49,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 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 09:28:49,245 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:28:49,245 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:28:49,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 09:28:49,246 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-20 09:28:49,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:28:49,246 INFO L85 PathProgramCache]: Analyzing trace with hash 455871811, now seen corresponding path program 4 times [2024-11-20 09:28:49,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:28:49,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232849157] [2024-11-20 09:28:49,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:28:49,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:28:49,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:28:50,249 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 09:28:50,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:28:50,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232849157] [2024-11-20 09:28:50,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232849157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:28:50,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:28:50,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-20 09:28:50,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892860460] [2024-11-20 09:28:50,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:28:50,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 09:28:50,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:28:50,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 09:28:50,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-20 09:28:50,299 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-20 09:28:50,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 185 transitions, 3014 flow. Second operand has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 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 09:28:50,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:28:50,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-20 09:28:50,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:28:51,050 INFO L124 PetriNetUnfolderBase]: 906/1725 cut-off events. [2024-11-20 09:28:51,050 INFO L125 PetriNetUnfolderBase]: For 15780/15780 co-relation queries the response was YES. [2024-11-20 09:28:51,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9197 conditions, 1725 events. 906/1725 cut-off events. For 15780/15780 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 9905 event pairs, 265 based on Foata normal form. 1/1726 useless extension candidates. Maximal degree in co-relation 9131. Up to 1245 conditions per place. [2024-11-20 09:28:51,063 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 129 selfloop transitions, 52 changer transitions 58/240 dead transitions. [2024-11-20 09:28:51,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 240 transitions, 3944 flow [2024-11-20 09:28:51,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 09:28:51,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-20 09:28:51,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 230 transitions. [2024-11-20 09:28:51,065 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.27380952380952384 [2024-11-20 09:28:51,065 INFO L175 Difference]: Start difference. First operand has 158 places, 185 transitions, 3014 flow. Second operand 14 states and 230 transitions. [2024-11-20 09:28:51,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 240 transitions, 3944 flow [2024-11-20 09:28:51,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 240 transitions, 3742 flow, removed 11 selfloop flow, removed 15 redundant places. [2024-11-20 09:28:51,131 INFO L231 Difference]: Finished difference. Result has 152 places, 161 transitions, 2507 flow [2024-11-20 09:28:51,131 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=2816, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2507, PETRI_PLACES=152, PETRI_TRANSITIONS=161} [2024-11-20 09:28:51,132 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 99 predicate places. [2024-11-20 09:28:51,132 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 161 transitions, 2507 flow [2024-11-20 09:28:51,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 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 09:28:51,133 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:28:51,133 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:28:51,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 09:28:51,133 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-20 09:28:51,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:28:51,134 INFO L85 PathProgramCache]: Analyzing trace with hash -744916971, now seen corresponding path program 5 times [2024-11-20 09:28:51,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:28:51,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894441738] [2024-11-20 09:28:51,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:28:51,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:28:51,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:28:51,423 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 09:28:51,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:28:51,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894441738] [2024-11-20 09:28:51,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894441738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:28:51,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:28:51,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 09:28:51,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217369013] [2024-11-20 09:28:51,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:28:51,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 09:28:51,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:28:51,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 09:28:51,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 09:28:51,425 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-11-20 09:28:51,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 161 transitions, 2507 flow. Second operand has 7 states, 7 states have (on average 25.714285714285715) internal successors, (180), 7 states have internal predecessors, (180), 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 09:28:51,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:28:51,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-11-20 09:28:51,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:28:51,868 INFO L124 PetriNetUnfolderBase]: 672/1301 cut-off events. [2024-11-20 09:28:51,868 INFO L125 PetriNetUnfolderBase]: For 10777/10777 co-relation queries the response was YES. [2024-11-20 09:28:51,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6737 conditions, 1301 events. 672/1301 cut-off events. For 10777/10777 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 7022 event pairs, 113 based on Foata normal form. 12/1313 useless extension candidates. Maximal degree in co-relation 6677. Up to 711 conditions per place. [2024-11-20 09:28:51,877 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 95 selfloop transitions, 73 changer transitions 3/182 dead transitions. [2024-11-20 09:28:51,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 182 transitions, 2831 flow [2024-11-20 09:28:51,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 09:28:51,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 09:28:51,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 305 transitions. [2024-11-20 09:28:51,880 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5083333333333333 [2024-11-20 09:28:51,881 INFO L175 Difference]: Start difference. First operand has 152 places, 161 transitions, 2507 flow. Second operand 10 states and 305 transitions. [2024-11-20 09:28:51,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 182 transitions, 2831 flow [2024-11-20 09:28:51,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 182 transitions, 2623 flow, removed 35 selfloop flow, removed 18 redundant places. [2024-11-20 09:28:51,916 INFO L231 Difference]: Finished difference. Result has 138 places, 157 transitions, 2372 flow [2024-11-20 09:28:51,917 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=2183, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2372, PETRI_PLACES=138, PETRI_TRANSITIONS=157} [2024-11-20 09:28:51,918 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 85 predicate places. [2024-11-20 09:28:51,919 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 157 transitions, 2372 flow [2024-11-20 09:28:51,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.714285714285715) internal successors, (180), 7 states have internal predecessors, (180), 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 09:28:51,919 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:28:51,919 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:28:51,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 09:28:51,919 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-20 09:28:51,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:28:51,920 INFO L85 PathProgramCache]: Analyzing trace with hash 896429373, now seen corresponding path program 6 times [2024-11-20 09:28:51,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:28:51,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252122405] [2024-11-20 09:28:51,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:28:51,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:28:51,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:28:52,782 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 09:28:52,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:28:52,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252122405] [2024-11-20 09:28:52,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252122405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:28:52,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:28:52,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 09:28:52,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078120679] [2024-11-20 09:28:52,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:28:52,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 09:28:52,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:28:52,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 09:28:52,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-20 09:28:52,821 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-20 09:28:52,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 157 transitions, 2372 flow. Second operand has 12 states, 12 states have (on average 12.5) internal successors, (150), 12 states have internal predecessors, (150), 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 09:28:52,822 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:28:52,822 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-20 09:28:52,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:28:53,597 INFO L124 PetriNetUnfolderBase]: 669/1290 cut-off events. [2024-11-20 09:28:53,597 INFO L125 PetriNetUnfolderBase]: For 10411/10411 co-relation queries the response was YES. [2024-11-20 09:28:53,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6544 conditions, 1290 events. 669/1290 cut-off events. For 10411/10411 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 6883 event pairs, 163 based on Foata normal form. 2/1292 useless extension candidates. Maximal degree in co-relation 6459. Up to 892 conditions per place. [2024-11-20 09:28:53,609 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 103 selfloop transitions, 39 changer transitions 45/188 dead transitions. [2024-11-20 09:28:53,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 188 transitions, 2907 flow [2024-11-20 09:28:53,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 09:28:53,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-20 09:28:53,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 226 transitions. [2024-11-20 09:28:53,610 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.26904761904761904 [2024-11-20 09:28:53,611 INFO L175 Difference]: Start difference. First operand has 138 places, 157 transitions, 2372 flow. Second operand 14 states and 226 transitions. [2024-11-20 09:28:53,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 188 transitions, 2907 flow [2024-11-20 09:28:53,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 188 transitions, 2768 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-20 09:28:53,651 INFO L231 Difference]: Finished difference. Result has 146 places, 127 transitions, 1860 flow [2024-11-20 09:28:53,651 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=2234, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1860, PETRI_PLACES=146, PETRI_TRANSITIONS=127} [2024-11-20 09:28:53,652 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 93 predicate places. [2024-11-20 09:28:53,652 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 127 transitions, 1860 flow [2024-11-20 09:28:53,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.5) internal successors, (150), 12 states have internal predecessors, (150), 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 09:28:53,652 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:28:53,653 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:28:53,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 09:28:53,653 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-20 09:28:53,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:28:53,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1954738729, now seen corresponding path program 7 times [2024-11-20 09:28:53,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:28:53,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69018933] [2024-11-20 09:28:53,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:28:53,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:28:53,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:28:54,076 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 09:28:54,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:28:54,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69018933] [2024-11-20 09:28:54,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69018933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:28:54,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:28:54,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 09:28:54,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800666802] [2024-11-20 09:28:54,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:28:54,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 09:28:54,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:28:54,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 09:28:54,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-20 09:28:54,078 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-11-20 09:28:54,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 127 transitions, 1860 flow. Second operand has 8 states, 8 states have (on average 25.25) internal successors, (202), 8 states have internal predecessors, (202), 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 09:28:54,079 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:28:54,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-11-20 09:28:54,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:28:54,570 INFO L124 PetriNetUnfolderBase]: 629/1192 cut-off events. [2024-11-20 09:28:54,570 INFO L125 PetriNetUnfolderBase]: For 8925/8925 co-relation queries the response was YES. [2024-11-20 09:28:54,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5959 conditions, 1192 events. 629/1192 cut-off events. For 8925/8925 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 6304 event pairs, 62 based on Foata normal form. 10/1202 useless extension candidates. Maximal degree in co-relation 5906. Up to 591 conditions per place. [2024-11-20 09:28:54,579 INFO L140 encePairwiseOnDemand]: 50/60 looper letters, 86 selfloop transitions, 74 changer transitions 0/169 dead transitions. [2024-11-20 09:28:54,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 169 transitions, 2565 flow [2024-11-20 09:28:54,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 09:28:54,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-20 09:28:54,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 339 transitions. [2024-11-20 09:28:54,581 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4708333333333333 [2024-11-20 09:28:54,581 INFO L175 Difference]: Start difference. First operand has 146 places, 127 transitions, 1860 flow. Second operand 12 states and 339 transitions. [2024-11-20 09:28:54,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 169 transitions, 2565 flow [2024-11-20 09:28:54,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 169 transitions, 2133 flow, removed 33 selfloop flow, removed 29 redundant places. [2024-11-20 09:28:54,614 INFO L231 Difference]: Finished difference. Result has 111 places, 137 transitions, 1842 flow [2024-11-20 09:28:54,614 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=1490, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1842, PETRI_PLACES=111, PETRI_TRANSITIONS=137} [2024-11-20 09:28:54,615 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 58 predicate places. [2024-11-20 09:28:54,615 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 137 transitions, 1842 flow [2024-11-20 09:28:54,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 25.25) internal successors, (202), 8 states have internal predecessors, (202), 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 09:28:54,615 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:28:54,615 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:28:54,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 09:28:54,616 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-20 09:28:54,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:28:54,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1164023119, now seen corresponding path program 8 times [2024-11-20 09:28:54,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:28:54,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425991415] [2024-11-20 09:28:54,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:28:54,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:28:54,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:28:55,518 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 09:28:55,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:28:55,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425991415] [2024-11-20 09:28:55,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425991415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:28:55,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:28:55,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 09:28:55,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985912595] [2024-11-20 09:28:55,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:28:55,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 09:28:55,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:28:55,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 09:28:55,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-20 09:28:55,569 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-20 09:28:55,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 137 transitions, 1842 flow. Second operand has 12 states, 12 states have (on average 12.5) internal successors, (150), 12 states have internal predecessors, (150), 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 09:28:55,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:28:55,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-20 09:28:55,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:28:56,242 INFO L124 PetriNetUnfolderBase]: 708/1355 cut-off events. [2024-11-20 09:28:56,243 INFO L125 PetriNetUnfolderBase]: For 8236/8236 co-relation queries the response was YES. [2024-11-20 09:28:56,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6477 conditions, 1355 events. 708/1355 cut-off events. For 8236/8236 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 7355 event pairs, 184 based on Foata normal form. 1/1356 useless extension candidates. Maximal degree in co-relation 6220. Up to 897 conditions per place. [2024-11-20 09:28:56,249 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 113 selfloop transitions, 48 changer transitions 47/209 dead transitions. [2024-11-20 09:28:56,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 209 transitions, 2870 flow [2024-11-20 09:28:56,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 09:28:56,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-20 09:28:56,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 242 transitions. [2024-11-20 09:28:56,251 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2688888888888889 [2024-11-20 09:28:56,251 INFO L175 Difference]: Start difference. First operand has 111 places, 137 transitions, 1842 flow. Second operand 15 states and 242 transitions. [2024-11-20 09:28:56,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 209 transitions, 2870 flow [2024-11-20 09:28:56,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 209 transitions, 2562 flow, removed 50 selfloop flow, removed 10 redundant places. [2024-11-20 09:28:56,282 INFO L231 Difference]: Finished difference. Result has 119 places, 137 transitions, 1696 flow [2024-11-20 09:28:56,283 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=1617, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1696, PETRI_PLACES=119, PETRI_TRANSITIONS=137} [2024-11-20 09:28:56,283 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 66 predicate places. [2024-11-20 09:28:56,283 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 137 transitions, 1696 flow [2024-11-20 09:28:56,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.5) internal successors, (150), 12 states have internal predecessors, (150), 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 09:28:56,284 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:28:56,284 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:28:56,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 09:28:56,284 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-20 09:28:56,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:28:56,285 INFO L85 PathProgramCache]: Analyzing trace with hash 267005707, now seen corresponding path program 9 times [2024-11-20 09:28:56,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:28:56,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015767069] [2024-11-20 09:28:56,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:28:56,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:28:56,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:28:56,547 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 09:28:56,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:28:56,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015767069] [2024-11-20 09:28:56,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015767069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:28:56,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:28:56,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 09:28:56,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939979354] [2024-11-20 09:28:56,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:28:56,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 09:28:56,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:28:56,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 09:28:56,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 09:28:56,551 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-11-20 09:28:56,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 137 transitions, 1696 flow. Second operand has 7 states, 7 states have (on average 25.714285714285715) internal successors, (180), 7 states have internal predecessors, (180), 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 09:28:56,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:28:56,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-11-20 09:28:56,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:28:56,860 INFO L124 PetriNetUnfolderBase]: 486/957 cut-off events. [2024-11-20 09:28:56,860 INFO L125 PetriNetUnfolderBase]: For 4906/4906 co-relation queries the response was YES. [2024-11-20 09:28:56,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4315 conditions, 957 events. 486/957 cut-off events. For 4906/4906 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 4860 event pairs, 71 based on Foata normal form. 12/969 useless extension candidates. Maximal degree in co-relation 4270. Up to 403 conditions per place. [2024-11-20 09:28:56,866 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 92 selfloop transitions, 67 changer transitions 1/169 dead transitions. [2024-11-20 09:28:56,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 169 transitions, 2091 flow [2024-11-20 09:28:56,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 09:28:56,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-20 09:28:56,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 330 transitions. [2024-11-20 09:28:56,867 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-20 09:28:56,867 INFO L175 Difference]: Start difference. First operand has 119 places, 137 transitions, 1696 flow. Second operand 11 states and 330 transitions. [2024-11-20 09:28:56,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 169 transitions, 2091 flow [2024-11-20 09:28:56,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 169 transitions, 1975 flow, removed 23 selfloop flow, removed 10 redundant places. [2024-11-20 09:28:56,885 INFO L231 Difference]: Finished difference. Result has 121 places, 141 transitions, 1756 flow [2024-11-20 09:28:56,885 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=1508, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1756, PETRI_PLACES=121, PETRI_TRANSITIONS=141} [2024-11-20 09:28:56,885 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 68 predicate places. [2024-11-20 09:28:56,885 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 141 transitions, 1756 flow [2024-11-20 09:28:56,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.714285714285715) internal successors, (180), 7 states have internal predecessors, (180), 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 09:28:56,886 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:28:56,886 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:28:56,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 09:28:56,886 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-20 09:28:56,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:28:56,886 INFO L85 PathProgramCache]: Analyzing trace with hash 983390287, now seen corresponding path program 10 times [2024-11-20 09:28:56,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:28:56,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078986668] [2024-11-20 09:28:56,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:28:56,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:28:56,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:28:57,727 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 09:28:57,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:28:57,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078986668] [2024-11-20 09:28:57,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078986668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:28:57,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:28:57,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-20 09:28:57,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94034840] [2024-11-20 09:28:57,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:28:57,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 09:28:57,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:28:57,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 09:28:57,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-20 09:28:57,757 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-20 09:28:57,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 141 transitions, 1756 flow. Second operand has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 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 09:28:57,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:28:57,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-20 09:28:57,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:28:58,322 INFO L124 PetriNetUnfolderBase]: 491/978 cut-off events. [2024-11-20 09:28:58,322 INFO L125 PetriNetUnfolderBase]: For 5654/5654 co-relation queries the response was YES. [2024-11-20 09:28:58,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4651 conditions, 978 events. 491/978 cut-off events. For 5654/5654 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 4950 event pairs, 101 based on Foata normal form. 1/979 useless extension candidates. Maximal degree in co-relation 4368. Up to 574 conditions per place. [2024-11-20 09:28:58,348 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 98 selfloop transitions, 42 changer transitions 40/181 dead transitions. [2024-11-20 09:28:58,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 181 transitions, 2370 flow [2024-11-20 09:28:58,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 09:28:58,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-20 09:28:58,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 223 transitions. [2024-11-20 09:28:58,350 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2654761904761905 [2024-11-20 09:28:58,350 INFO L175 Difference]: Start difference. First operand has 121 places, 141 transitions, 1756 flow. Second operand 14 states and 223 transitions. [2024-11-20 09:28:58,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 181 transitions, 2370 flow [2024-11-20 09:28:58,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 181 transitions, 2246 flow, removed 18 selfloop flow, removed 6 redundant places. [2024-11-20 09:28:58,369 INFO L231 Difference]: Finished difference. Result has 129 places, 122 transitions, 1454 flow [2024-11-20 09:28:58,369 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=1648, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1454, PETRI_PLACES=129, PETRI_TRANSITIONS=122} [2024-11-20 09:28:58,369 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 76 predicate places. [2024-11-20 09:28:58,369 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 122 transitions, 1454 flow [2024-11-20 09:28:58,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 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 09:28:58,370 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:28:58,370 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:28:58,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-20 09:28:58,370 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-20 09:28:58,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:28:58,371 INFO L85 PathProgramCache]: Analyzing trace with hash 2089402495, now seen corresponding path program 11 times [2024-11-20 09:28:58,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:28:58,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098600645] [2024-11-20 09:28:58,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:28:58,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:28:58,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:28:59,232 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 09:28:59,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:28:59,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098600645] [2024-11-20 09:28:59,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098600645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:28:59,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:28:59,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-20 09:28:59,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679407508] [2024-11-20 09:28:59,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:28:59,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 09:28:59,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:28:59,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 09:28:59,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-20 09:28:59,254 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-20 09:28:59,255 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 122 transitions, 1454 flow. Second operand has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 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 09:28:59,255 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:28:59,255 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-20 09:28:59,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:28:59,827 INFO L124 PetriNetUnfolderBase]: 392/781 cut-off events. [2024-11-20 09:28:59,827 INFO L125 PetriNetUnfolderBase]: For 4131/4131 co-relation queries the response was YES. [2024-11-20 09:28:59,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3676 conditions, 781 events. 392/781 cut-off events. For 4131/4131 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3695 event pairs, 77 based on Foata normal form. 2/783 useless extension candidates. Maximal degree in co-relation 3631. Up to 441 conditions per place. [2024-11-20 09:28:59,831 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 79 selfloop transitions, 31 changer transitions 44/155 dead transitions. [2024-11-20 09:28:59,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 155 transitions, 1933 flow [2024-11-20 09:28:59,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-20 09:28:59,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-20 09:28:59,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 249 transitions. [2024-11-20 09:28:59,832 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.259375 [2024-11-20 09:28:59,832 INFO L175 Difference]: Start difference. First operand has 129 places, 122 transitions, 1454 flow. Second operand 16 states and 249 transitions. [2024-11-20 09:28:59,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 155 transitions, 1933 flow [2024-11-20 09:28:59,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 155 transitions, 1704 flow, removed 5 selfloop flow, removed 21 redundant places. [2024-11-20 09:28:59,843 INFO L231 Difference]: Finished difference. Result has 119 places, 92 transitions, 929 flow [2024-11-20 09:28:59,844 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=1225, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=929, PETRI_PLACES=119, PETRI_TRANSITIONS=92} [2024-11-20 09:28:59,844 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 66 predicate places. [2024-11-20 09:28:59,844 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 92 transitions, 929 flow [2024-11-20 09:28:59,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 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 09:28:59,845 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:28:59,845 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:28:59,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-20 09:28:59,845 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-20 09:28:59,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:28:59,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1412299009, now seen corresponding path program 12 times [2024-11-20 09:28:59,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:28:59,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13553206] [2024-11-20 09:28:59,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:28:59,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:28:59,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:29:00,099 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 09:29:00,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:29:00,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13553206] [2024-11-20 09:29:00,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13553206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:29:00,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:29:00,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 09:29:00,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823490044] [2024-11-20 09:29:00,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:29:00,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 09:29:00,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:29:00,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 09:29:00,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-20 09:29:00,101 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-11-20 09:29:00,102 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 92 transitions, 929 flow. Second operand has 8 states, 8 states have (on average 25.25) internal successors, (202), 8 states have internal predecessors, (202), 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 09:29:00,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:29:00,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-11-20 09:29:00,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:29:00,387 INFO L124 PetriNetUnfolderBase]: 177/380 cut-off events. [2024-11-20 09:29:00,388 INFO L125 PetriNetUnfolderBase]: For 1702/1702 co-relation queries the response was YES. [2024-11-20 09:29:00,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1672 conditions, 380 events. 177/380 cut-off events. For 1702/1702 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1450 event pairs, 10 based on Foata normal form. 18/398 useless extension candidates. Maximal degree in co-relation 1638. Up to 131 conditions per place. [2024-11-20 09:29:00,390 INFO L140 encePairwiseOnDemand]: 50/60 looper letters, 53 selfloop transitions, 41 changer transitions 0/101 dead transitions. [2024-11-20 09:29:00,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 101 transitions, 1047 flow [2024-11-20 09:29:00,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 09:29:00,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-20 09:29:00,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 331 transitions. [2024-11-20 09:29:00,392 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4597222222222222 [2024-11-20 09:29:00,392 INFO L175 Difference]: Start difference. First operand has 119 places, 92 transitions, 929 flow. Second operand 12 states and 331 transitions. [2024-11-20 09:29:00,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 101 transitions, 1047 flow [2024-11-20 09:29:00,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 101 transitions, 894 flow, removed 23 selfloop flow, removed 18 redundant places. [2024-11-20 09:29:00,398 INFO L231 Difference]: Finished difference. Result has 99 places, 83 transitions, 813 flow [2024-11-20 09:29:00,398 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=637, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=813, PETRI_PLACES=99, PETRI_TRANSITIONS=83} [2024-11-20 09:29:00,399 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 46 predicate places. [2024-11-20 09:29:00,399 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 83 transitions, 813 flow [2024-11-20 09:29:00,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 25.25) internal successors, (202), 8 states have internal predecessors, (202), 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 09:29:00,399 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:29:00,400 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:29:00,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-20 09:29:00,400 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-20 09:29:00,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:29:00,400 INFO L85 PathProgramCache]: Analyzing trace with hash -372627619, now seen corresponding path program 13 times [2024-11-20 09:29:00,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:29:00,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095492776] [2024-11-20 09:29:00,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:29:00,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:29:00,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:29:01,361 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 09:29:01,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:29:01,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095492776] [2024-11-20 09:29:01,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095492776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:29:01,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:29:01,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-20 09:29:01,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821660778] [2024-11-20 09:29:01,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:29:01,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 09:29:01,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:29:01,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 09:29:01,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-20 09:29:01,404 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-20 09:29:01,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 83 transitions, 813 flow. Second operand has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 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 09:29:01,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:29:01,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-20 09:29:01,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:29:01,939 INFO L124 PetriNetUnfolderBase]: 234/509 cut-off events. [2024-11-20 09:29:01,940 INFO L125 PetriNetUnfolderBase]: For 2082/2082 co-relation queries the response was YES. [2024-11-20 09:29:01,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2161 conditions, 509 events. 234/509 cut-off events. For 2082/2082 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2160 event pairs, 51 based on Foata normal form. 2/511 useless extension candidates. Maximal degree in co-relation 1984. Up to 238 conditions per place. [2024-11-20 09:29:01,944 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 60 selfloop transitions, 25 changer transitions 39/125 dead transitions. [2024-11-20 09:29:01,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 125 transitions, 1367 flow [2024-11-20 09:29:01,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 09:29:01,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-20 09:29:01,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 212 transitions. [2024-11-20 09:29:01,945 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2523809523809524 [2024-11-20 09:29:01,946 INFO L175 Difference]: Start difference. First operand has 99 places, 83 transitions, 813 flow. Second operand 14 states and 212 transitions. [2024-11-20 09:29:01,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 125 transitions, 1367 flow [2024-11-20 09:29:01,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 125 transitions, 1258 flow, removed 18 selfloop flow, removed 13 redundant places. [2024-11-20 09:29:01,955 INFO L231 Difference]: Finished difference. Result has 100 places, 73 transitions, 697 flow [2024-11-20 09:29:01,955 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=697, PETRI_PLACES=100, PETRI_TRANSITIONS=73} [2024-11-20 09:29:01,956 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 47 predicate places. [2024-11-20 09:29:01,956 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 73 transitions, 697 flow [2024-11-20 09:29:01,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 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 09:29:01,956 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:29:01,956 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:29:01,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-20 09:29:01,957 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-20 09:29:01,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:29:01,957 INFO L85 PathProgramCache]: Analyzing trace with hash -27326571, now seen corresponding path program 14 times [2024-11-20 09:29:01,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:29:01,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196580827] [2024-11-20 09:29:01,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:29:01,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:29:02,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:29:02,711 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 09:29:02,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:29:02,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196580827] [2024-11-20 09:29:02,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196580827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:29:02,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:29:02,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 09:29:02,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737901038] [2024-11-20 09:29:02,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:29:02,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 09:29:02,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:29:02,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 09:29:02,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-20 09:29:02,752 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-20 09:29:02,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 73 transitions, 697 flow. Second operand has 12 states, 12 states have (on average 12.5) internal successors, (150), 12 states have internal predecessors, (150), 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 09:29:02,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:29:02,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-20 09:29:02,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:29:03,266 INFO L124 PetriNetUnfolderBase]: 156/343 cut-off events. [2024-11-20 09:29:03,267 INFO L125 PetriNetUnfolderBase]: For 1230/1230 co-relation queries the response was YES. [2024-11-20 09:29:03,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1399 conditions, 343 events. 156/343 cut-off events. For 1230/1230 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1265 event pairs, 22 based on Foata normal form. 2/345 useless extension candidates. Maximal degree in co-relation 1376. Up to 116 conditions per place. [2024-11-20 09:29:03,268 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 39 selfloop transitions, 19 changer transitions 41/100 dead transitions. [2024-11-20 09:29:03,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 100 transitions, 1006 flow [2024-11-20 09:29:03,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 09:29:03,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-20 09:29:03,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 222 transitions. [2024-11-20 09:29:03,270 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.24666666666666667 [2024-11-20 09:29:03,270 INFO L175 Difference]: Start difference. First operand has 100 places, 73 transitions, 697 flow. Second operand 15 states and 222 transitions. [2024-11-20 09:29:03,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 100 transitions, 1006 flow [2024-11-20 09:29:03,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 100 transitions, 926 flow, removed 2 selfloop flow, removed 15 redundant places. [2024-11-20 09:29:03,274 INFO L231 Difference]: Finished difference. Result has 97 places, 48 transitions, 388 flow [2024-11-20 09:29:03,274 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=617, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=388, PETRI_PLACES=97, PETRI_TRANSITIONS=48} [2024-11-20 09:29:03,274 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 44 predicate places. [2024-11-20 09:29:03,275 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 48 transitions, 388 flow [2024-11-20 09:29:03,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.5) internal successors, (150), 12 states have internal predecessors, (150), 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 09:29:03,275 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:29:03,275 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:29:03,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-20 09:29:03,275 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-20 09:29:03,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:29:03,276 INFO L85 PathProgramCache]: Analyzing trace with hash -272510323, now seen corresponding path program 15 times [2024-11-20 09:29:03,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:29:03,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508942727] [2024-11-20 09:29:03,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:29:03,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:29:03,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:29:03,905 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 09:29:03,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:29:03,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508942727] [2024-11-20 09:29:03,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508942727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:29:03,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:29:03,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 09:29:03,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900830761] [2024-11-20 09:29:03,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:29:03,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 09:29:03,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:29:03,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 09:29:03,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-20 09:29:03,934 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-20 09:29:03,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 48 transitions, 388 flow. Second operand has 12 states, 12 states have (on average 12.5) internal successors, (150), 12 states have internal predecessors, (150), 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 09:29:03,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:29:03,934 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-20 09:29:03,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:29:04,316 INFO L124 PetriNetUnfolderBase]: 81/182 cut-off events. [2024-11-20 09:29:04,316 INFO L125 PetriNetUnfolderBase]: For 712/712 co-relation queries the response was YES. [2024-11-20 09:29:04,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 766 conditions, 182 events. 81/182 cut-off events. For 712/712 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 517 event pairs, 13 based on Foata normal form. 1/183 useless extension candidates. Maximal degree in co-relation 750. Up to 74 conditions per place. [2024-11-20 09:29:04,317 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 0 selfloop transitions, 0 changer transitions 59/59 dead transitions. [2024-11-20 09:29:04,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 59 transitions, 541 flow [2024-11-20 09:29:04,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 09:29:04,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-20 09:29:04,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 191 transitions. [2024-11-20 09:29:04,319 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.22738095238095238 [2024-11-20 09:29:04,319 INFO L175 Difference]: Start difference. First operand has 97 places, 48 transitions, 388 flow. Second operand 14 states and 191 transitions. [2024-11-20 09:29:04,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 59 transitions, 541 flow [2024-11-20 09:29:04,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 59 transitions, 323 flow, removed 5 selfloop flow, removed 39 redundant places. [2024-11-20 09:29:04,321 INFO L231 Difference]: Finished difference. Result has 62 places, 0 transitions, 0 flow [2024-11-20 09:29:04,321 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=0, PETRI_PLACES=62, PETRI_TRANSITIONS=0} [2024-11-20 09:29:04,321 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 9 predicate places. [2024-11-20 09:29:04,321 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 0 transitions, 0 flow [2024-11-20 09:29:04,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.5) internal successors, (150), 12 states have internal predecessors, (150), 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 09:29:04,325 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2024-11-20 09:29:04,325 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2024-11-20 09:29:04,326 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2024-11-20 09:29:04,326 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2024-11-20 09:29:04,326 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2024-11-20 09:29:04,326 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2024-11-20 09:29:04,327 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-11-20 09:29:04,327 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-11-20 09:29:04,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-20 09:29:04,328 INFO L407 BasicCegarLoop]: Path program histogram: [15, 6, 1, 1, 1, 1] [2024-11-20 09:29:04,332 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-20 09:29:04,332 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 09:29:04,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:29:04 BasicIcfg [2024-11-20 09:29:04,341 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 09:29:04,342 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 09:29:04,342 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 09:29:04,342 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 09:29:04,343 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:30" (3/4) ... [2024-11-20 09:29:04,346 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-20 09:29:04,351 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_callback [2024-11-20 09:29:04,361 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 81 nodes and edges [2024-11-20 09:29:04,363 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2024-11-20 09:29:04,363 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-20 09:29:04,363 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-20 09:29:04,477 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 09:29:04,477 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-20 09:29:04,477 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 09:29:04,478 INFO L158 Benchmark]: Toolchain (without parser) took 35505.87ms. Allocated memory was 146.8MB in the beginning and 868.2MB in the end (delta: 721.4MB). Free memory was 72.1MB in the beginning and 340.5MB in the end (delta: -268.4MB). Peak memory consumption was 455.5MB. Max. memory is 16.1GB. [2024-11-20 09:29:04,478 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 146.8MB. Free memory was 96.0MB in the beginning and 95.8MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 09:29:04,479 INFO L158 Benchmark]: CACSL2BoogieTranslator took 688.74ms. Allocated memory was 146.8MB in the beginning and 182.5MB in the end (delta: 35.7MB). Free memory was 71.9MB in the beginning and 131.0MB in the end (delta: -59.1MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2024-11-20 09:29:04,479 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.88ms. Allocated memory is still 182.5MB. Free memory was 131.0MB in the beginning and 127.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 09:29:04,479 INFO L158 Benchmark]: Boogie Preprocessor took 84.15ms. Allocated memory is still 182.5MB. Free memory was 127.9MB in the beginning and 123.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 09:29:04,479 INFO L158 Benchmark]: RCFGBuilder took 730.88ms. Allocated memory is still 182.5MB. Free memory was 123.7MB in the beginning and 81.8MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-20 09:29:04,480 INFO L158 Benchmark]: TraceAbstraction took 33785.77ms. Allocated memory was 182.5MB in the beginning and 868.2MB in the end (delta: 685.8MB). Free memory was 81.8MB in the beginning and 346.8MB in the end (delta: -265.0MB). Peak memory consumption was 421.8MB. Max. memory is 16.1GB. [2024-11-20 09:29:04,480 INFO L158 Benchmark]: Witness Printer took 135.95ms. Allocated memory is still 868.2MB. Free memory was 345.7MB in the beginning and 340.5MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-20 09:29:04,483 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 146.8MB. Free memory was 96.0MB in the beginning and 95.8MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 688.74ms. Allocated memory was 146.8MB in the beginning and 182.5MB in the end (delta: 35.7MB). Free memory was 71.9MB in the beginning and 131.0MB in the end (delta: -59.1MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.88ms. Allocated memory is still 182.5MB. Free memory was 131.0MB in the beginning and 127.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.15ms. Allocated memory is still 182.5MB. Free memory was 127.9MB in the beginning and 123.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 730.88ms. Allocated memory is still 182.5MB. Free memory was 123.7MB in the beginning and 81.8MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 33785.77ms. Allocated memory was 182.5MB in the beginning and 868.2MB in the end (delta: 685.8MB). Free memory was 81.8MB in the beginning and 346.8MB in the end (delta: -265.0MB). Peak memory consumption was 421.8MB. Max. memory is 16.1GB. * Witness Printer took 135.95ms. Allocated memory is still 868.2MB. Free memory was 345.7MB in the beginning and 340.5MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3885]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 3885]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 3885]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 3885]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 3885]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 3885]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 60 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 33.7s, OverallIterations: 25, TraceHistogramMax: 1, PathProgramHistogramMax: 15, EmptinessCheckTime: 0.0s, AutomataDifference: 16.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2810 SdHoareTripleChecker+Valid, 7.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2640 mSDsluCounter, 3770 SdHoareTripleChecker+Invalid, 6.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3700 mSDsCounter, 290 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9678 IncrementalHoareTripleChecker+Invalid, 9968 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 290 mSolverCounterUnsat, 70 mSDtfsCounter, 9678 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 425 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 364 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 874 ImplicationChecksByTransitivity, 6.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3193occurred in iteration=12, InterpolantAutomatonStates: 306, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 15.6s InterpolantComputationTime, 684 NumberOfCodeBlocks, 684 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 659 ConstructedInterpolants, 0 QuantifiedInterpolants, 6945 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 25 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-20 09:29:04,509 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE