./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a7843ed292ba7ad810f8623eae57d1bf23212a957c35d700b564dc03a7df5581 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 06:44:15,631 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 06:44:15,683 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-01-10 06:44:15,686 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 06:44:15,687 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 06:44:15,711 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 06:44:15,711 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 06:44:15,712 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 06:44:15,712 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 06:44:15,712 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 06:44:15,713 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 06:44:15,713 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 06:44:15,713 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 06:44:15,714 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 06:44:15,714 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 06:44:15,714 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 06:44:15,714 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 06:44:15,714 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 06:44:15,714 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 06:44:15,714 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 06:44:15,714 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 06:44:15,714 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 06:44:15,714 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 06:44:15,715 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 06:44:15,715 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 06:44:15,715 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 06:44:15,715 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 06:44:15,715 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 06:44:15,715 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 06:44:15,715 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 06:44:15,715 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 06:44:15,716 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:44:15,716 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:44:15,716 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:44:15,716 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:44:15,716 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 06:44:15,716 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:44:15,716 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:44:15,716 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:44:15,716 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:44:15,716 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 06:44:15,716 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 06:44:15,716 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 06:44:15,717 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 06:44:15,717 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 06:44:15,717 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 06:44:15,717 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 06:44:15,717 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 06:44:15,717 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 06:44:15,717 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 06:44:15,717 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7843ed292ba7ad810f8623eae57d1bf23212a957c35d700b564dc03a7df5581 [2025-01-10 06:44:15,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 06:44:15,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 06:44:15,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 06:44:15,962 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 06:44:15,962 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 06:44:15,963 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2025-01-10 06:44:17,193 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8c9c9e723/83927aa5350b4f58a8f143200046caab/FLAG52a64b096 [2025-01-10 06:44:17,507 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 06:44:17,511 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2025-01-10 06:44:17,531 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8c9c9e723/83927aa5350b4f58a8f143200046caab/FLAG52a64b096 [2025-01-10 06:44:17,770 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8c9c9e723/83927aa5350b4f58a8f143200046caab [2025-01-10 06:44:17,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 06:44:17,772 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 06:44:17,773 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 06:44:17,773 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 06:44:17,776 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 06:44:17,777 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:44:17" (1/1) ... [2025-01-10 06:44:17,778 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dc76f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:17, skipping insertion in model container [2025-01-10 06:44:17,778 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:44:17" (1/1) ... [2025-01-10 06:44:17,806 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 06:44:18,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:44:18,024 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 06:44:18,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:44:18,092 INFO L204 MainTranslator]: Completed translation [2025-01-10 06:44:18,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:18 WrapperNode [2025-01-10 06:44:18,093 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 06:44:18,094 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 06:44:18,094 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 06:44:18,094 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 06:44:18,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:18" (1/1) ... [2025-01-10 06:44:18,104 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:18" (1/1) ... [2025-01-10 06:44:18,115 INFO L138 Inliner]: procedures = 186, calls = 12, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 57 [2025-01-10 06:44:18,115 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 06:44:18,116 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 06:44:18,116 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 06:44:18,116 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 06:44:18,121 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:18" (1/1) ... [2025-01-10 06:44:18,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:18" (1/1) ... [2025-01-10 06:44:18,123 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:18" (1/1) ... [2025-01-10 06:44:18,130 INFO L175 MemorySlicer]: Split 5 memory accesses to 1 slices as follows [5]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 3 writes are split as follows [3]. [2025-01-10 06:44:18,131 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:18" (1/1) ... [2025-01-10 06:44:18,131 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:18" (1/1) ... [2025-01-10 06:44:18,134 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:18" (1/1) ... [2025-01-10 06:44:18,135 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:18" (1/1) ... [2025-01-10 06:44:18,136 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:18" (1/1) ... [2025-01-10 06:44:18,136 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:18" (1/1) ... [2025-01-10 06:44:18,137 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:18" (1/1) ... [2025-01-10 06:44:18,138 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 06:44:18,138 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 06:44:18,139 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 06:44:18,139 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 06:44:18,139 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:18" (1/1) ... [2025-01-10 06:44:18,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:44:18,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:44:18,168 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-10 06:44:18,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-10 06:44:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-10 06:44:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-10 06:44:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-10 06:44:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-10 06:44:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-01-10 06:44:18,187 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-01-10 06:44:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-10 06:44:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 06:44:18,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 06:44:18,188 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-10 06:44:18,258 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 06:44:18,260 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 06:44:18,360 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 06:44:18,360 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 06:44:18,420 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 06:44:18,421 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 06:44:18,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:44:18 BoogieIcfgContainer [2025-01-10 06:44:18,421 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 06:44:18,422 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 06:44:18,422 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 06:44:18,425 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 06:44:18,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:44:17" (1/3) ... [2025-01-10 06:44:18,426 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a4a574c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:44:18, skipping insertion in model container [2025-01-10 06:44:18,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:44:18" (2/3) ... [2025-01-10 06:44:18,426 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a4a574c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:44:18, skipping insertion in model container [2025-01-10 06:44:18,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:44:18" (3/3) ... [2025-01-10 06:44:18,427 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_15-list_entry_nr.i [2025-01-10 06:44:18,436 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 06:44:18,437 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_15-list_entry_nr.i that has 2 procedures, 22 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-01-10 06:44:18,437 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 06:44:18,469 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-10 06:44:18,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 25 places, 21 transitions, 46 flow [2025-01-10 06:44:18,518 INFO L124 PetriNetUnfolderBase]: 0/20 cut-off events. [2025-01-10 06:44:18,523 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:44:18,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 20 events. 0/20 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 28 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-01-10 06:44:18,528 INFO L82 GeneralOperation]: Start removeDead. Operand has 25 places, 21 transitions, 46 flow [2025-01-10 06:44:18,530 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 20 transitions, 43 flow [2025-01-10 06:44:18,535 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 06:44:18,542 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;@481dfe00, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 06:44:18,542 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-01-10 06:44:18,546 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 06:44:18,546 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2025-01-10 06:44:18,546 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:44:18,546 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:44:18,547 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-01-10 06:44:18,547 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:44:18,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:44:18,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1131338283, now seen corresponding path program 1 times [2025-01-10 06:44:18,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:44:18,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107301843] [2025-01-10 06:44:18,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:44:18,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:44:18,615 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-10 06:44:18,645 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-10 06:44:18,646 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:44:18,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:44:18,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:44:18,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:44:18,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107301843] [2025-01-10 06:44:18,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107301843] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:44:18,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:44:18,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:44:18,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960209044] [2025-01-10 06:44:18,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:44:18,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 06:44:18,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:44:19,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 06:44:19,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 06:44:19,042 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 21 [2025-01-10 06:44:19,044 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2025-01-10 06:44:19,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:44:19,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 21 [2025-01-10 06:44:19,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:44:19,155 INFO L124 PetriNetUnfolderBase]: 52/125 cut-off events. [2025-01-10 06:44:19,156 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:44:19,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 125 events. 52/125 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 389 event pairs, 10 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 243. Up to 65 conditions per place. [2025-01-10 06:44:19,158 INFO L140 encePairwiseOnDemand]: 14/21 looper letters, 28 selfloop transitions, 8 changer transitions 2/41 dead transitions. [2025-01-10 06:44:19,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 41 transitions, 161 flow [2025-01-10 06:44:19,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 06:44:19,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-10 06:44:19,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 64 transitions. [2025-01-10 06:44:19,170 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5079365079365079 [2025-01-10 06:44:19,171 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 6 states and 64 transitions. [2025-01-10 06:44:19,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 41 transitions, 161 flow [2025-01-10 06:44:19,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 41 transitions, 160 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:44:19,178 INFO L231 Difference]: Finished difference. Result has 33 places, 25 transitions, 94 flow [2025-01-10 06:44:19,180 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=94, PETRI_PLACES=33, PETRI_TRANSITIONS=25} [2025-01-10 06:44:19,183 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 9 predicate places. [2025-01-10 06:44:19,184 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 25 transitions, 94 flow [2025-01-10 06:44:19,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2025-01-10 06:44:19,184 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:44:19,184 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-01-10 06:44:19,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 06:44:19,184 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:44:19,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:44:19,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1131858609, now seen corresponding path program 1 times [2025-01-10 06:44:19,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:44:19,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484088644] [2025-01-10 06:44:19,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:44:19,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:44:19,196 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-10 06:44:19,201 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-10 06:44:19,205 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:44:19,205 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:44:19,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:44:19,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:44:19,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484088644] [2025-01-10 06:44:19,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484088644] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:44:19,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:44:19,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:44:19,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606178286] [2025-01-10 06:44:19,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:44:19,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 06:44:19,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:44:19,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 06:44:19,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 06:44:19,386 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 21 [2025-01-10 06:44:19,387 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 25 transitions, 94 flow. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2025-01-10 06:44:19,387 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:44:19,387 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 21 [2025-01-10 06:44:19,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:44:19,515 INFO L124 PetriNetUnfolderBase]: 42/117 cut-off events. [2025-01-10 06:44:19,515 INFO L125 PetriNetUnfolderBase]: For 68/72 co-relation queries the response was YES. [2025-01-10 06:44:19,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 117 events. 42/117 cut-off events. For 68/72 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 413 event pairs, 6 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 282. Up to 49 conditions per place. [2025-01-10 06:44:19,516 INFO L140 encePairwiseOnDemand]: 14/21 looper letters, 28 selfloop transitions, 10 changer transitions 0/42 dead transitions. [2025-01-10 06:44:19,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 42 transitions, 228 flow [2025-01-10 06:44:19,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 06:44:19,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-10 06:44:19,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 62 transitions. [2025-01-10 06:44:19,518 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49206349206349204 [2025-01-10 06:44:19,518 INFO L175 Difference]: Start difference. First operand has 33 places, 25 transitions, 94 flow. Second operand 6 states and 62 transitions. [2025-01-10 06:44:19,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 42 transitions, 228 flow [2025-01-10 06:44:19,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 42 transitions, 228 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-10 06:44:19,520 INFO L231 Difference]: Finished difference. Result has 43 places, 30 transitions, 162 flow [2025-01-10 06:44:19,520 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=162, PETRI_PLACES=43, PETRI_TRANSITIONS=30} [2025-01-10 06:44:19,520 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 19 predicate places. [2025-01-10 06:44:19,520 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 30 transitions, 162 flow [2025-01-10 06:44:19,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2025-01-10 06:44:19,520 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:44:19,520 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:44:19,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 06:44:19,524 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:44:19,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:44:19,524 INFO L85 PathProgramCache]: Analyzing trace with hash 727878704, now seen corresponding path program 1 times [2025-01-10 06:44:19,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:44:19,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917658219] [2025-01-10 06:44:19,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:44:19,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:44:19,529 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 06:44:19,532 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 06:44:19,532 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:44:19,532 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:44:19,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:44:19,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:44:19,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917658219] [2025-01-10 06:44:19,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917658219] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:44:19,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:44:19,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:44:19,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661443656] [2025-01-10 06:44:19,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:44:19,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 06:44:19,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:44:19,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 06:44:19,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 06:44:19,654 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 21 [2025-01-10 06:44:19,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 30 transitions, 162 flow. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2025-01-10 06:44:19,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:44:19,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 21 [2025-01-10 06:44:19,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:44:19,800 INFO L124 PetriNetUnfolderBase]: 29/100 cut-off events. [2025-01-10 06:44:19,800 INFO L125 PetriNetUnfolderBase]: For 116/120 co-relation queries the response was YES. [2025-01-10 06:44:19,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 100 events. 29/100 cut-off events. For 116/120 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 358 event pairs, 6 based on Foata normal form. 9/109 useless extension candidates. Maximal degree in co-relation 283. Up to 49 conditions per place. [2025-01-10 06:44:19,801 INFO L140 encePairwiseOnDemand]: 14/21 looper letters, 24 selfloop transitions, 9 changer transitions 1/40 dead transitions. [2025-01-10 06:44:19,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 40 transitions, 266 flow [2025-01-10 06:44:19,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 06:44:19,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-10 06:44:19,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 64 transitions. [2025-01-10 06:44:19,802 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5079365079365079 [2025-01-10 06:44:19,802 INFO L175 Difference]: Start difference. First operand has 43 places, 30 transitions, 162 flow. Second operand 6 states and 64 transitions. [2025-01-10 06:44:19,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 40 transitions, 266 flow [2025-01-10 06:44:19,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 40 transitions, 266 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-10 06:44:19,808 INFO L231 Difference]: Finished difference. Result has 50 places, 29 transitions, 179 flow [2025-01-10 06:44:19,808 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=179, PETRI_PLACES=50, PETRI_TRANSITIONS=29} [2025-01-10 06:44:19,809 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 26 predicate places. [2025-01-10 06:44:19,809 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 29 transitions, 179 flow [2025-01-10 06:44:19,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2025-01-10 06:44:19,809 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:44:19,809 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:44:19,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 06:44:19,809 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:44:19,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:44:19,809 INFO L85 PathProgramCache]: Analyzing trace with hash 711748585, now seen corresponding path program 1 times [2025-01-10 06:44:19,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:44:19,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977316695] [2025-01-10 06:44:19,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:44:19,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:44:19,814 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 06:44:19,817 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 06:44:19,817 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:44:19,817 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:44:19,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:44:19,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:44:19,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977316695] [2025-01-10 06:44:19,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977316695] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:44:19,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:44:19,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:44:19,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413030435] [2025-01-10 06:44:19,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:44:19,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 06:44:19,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:44:19,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 06:44:19,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 06:44:19,886 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 21 [2025-01-10 06:44:19,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 29 transitions, 179 flow. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2025-01-10 06:44:19,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:44:19,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 21 [2025-01-10 06:44:19,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:44:19,963 INFO L124 PetriNetUnfolderBase]: 29/96 cut-off events. [2025-01-10 06:44:19,963 INFO L125 PetriNetUnfolderBase]: For 202/206 co-relation queries the response was YES. [2025-01-10 06:44:19,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 96 events. 29/96 cut-off events. For 202/206 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 322 event pairs, 8 based on Foata normal form. 9/105 useless extension candidates. Maximal degree in co-relation 300. Up to 51 conditions per place. [2025-01-10 06:44:19,964 INFO L140 encePairwiseOnDemand]: 15/21 looper letters, 22 selfloop transitions, 7 changer transitions 4/39 dead transitions. [2025-01-10 06:44:19,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 39 transitions, 291 flow [2025-01-10 06:44:19,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 06:44:19,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-10 06:44:19,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 64 transitions. [2025-01-10 06:44:19,965 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5079365079365079 [2025-01-10 06:44:19,965 INFO L175 Difference]: Start difference. First operand has 50 places, 29 transitions, 179 flow. Second operand 6 states and 64 transitions. [2025-01-10 06:44:19,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 39 transitions, 291 flow [2025-01-10 06:44:19,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 39 transitions, 259 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-01-10 06:44:19,968 INFO L231 Difference]: Finished difference. Result has 51 places, 28 transitions, 167 flow [2025-01-10 06:44:19,968 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=167, PETRI_PLACES=51, PETRI_TRANSITIONS=28} [2025-01-10 06:44:19,968 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 27 predicate places. [2025-01-10 06:44:19,968 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 28 transitions, 167 flow [2025-01-10 06:44:19,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2025-01-10 06:44:19,968 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:44:19,968 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:44:19,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-10 06:44:19,969 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:44:19,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:44:19,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1626266277, now seen corresponding path program 1 times [2025-01-10 06:44:19,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:44:19,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362205891] [2025-01-10 06:44:19,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:44:19,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:44:19,974 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-10 06:44:19,982 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-10 06:44:19,983 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:44:19,983 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:44:20,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:44:20,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:44:20,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362205891] [2025-01-10 06:44:20,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362205891] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:44:20,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:44:20,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 06:44:20,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607204359] [2025-01-10 06:44:20,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:44:20,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 06:44:20,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:44:20,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 06:44:20,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 06:44:20,081 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 21 [2025-01-10 06:44:20,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 28 transitions, 167 flow. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2025-01-10 06:44:20,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:44:20,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 21 [2025-01-10 06:44:20,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:44:20,150 INFO L124 PetriNetUnfolderBase]: 25/90 cut-off events. [2025-01-10 06:44:20,150 INFO L125 PetriNetUnfolderBase]: For 171/176 co-relation queries the response was YES. [2025-01-10 06:44:20,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 309 conditions, 90 events. 25/90 cut-off events. For 171/176 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 337 event pairs, 1 based on Foata normal form. 7/97 useless extension candidates. Maximal degree in co-relation 291. Up to 27 conditions per place. [2025-01-10 06:44:20,151 INFO L140 encePairwiseOnDemand]: 14/21 looper letters, 30 selfloop transitions, 9 changer transitions 0/47 dead transitions. [2025-01-10 06:44:20,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 47 transitions, 346 flow [2025-01-10 06:44:20,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:44:20,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:44:20,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 66 transitions. [2025-01-10 06:44:20,152 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2025-01-10 06:44:20,152 INFO L175 Difference]: Start difference. First operand has 51 places, 28 transitions, 167 flow. Second operand 5 states and 66 transitions. [2025-01-10 06:44:20,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 47 transitions, 346 flow [2025-01-10 06:44:20,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 47 transitions, 315 flow, removed 2 selfloop flow, removed 6 redundant places. [2025-01-10 06:44:20,154 INFO L231 Difference]: Finished difference. Result has 50 places, 32 transitions, 196 flow [2025-01-10 06:44:20,154 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=196, PETRI_PLACES=50, PETRI_TRANSITIONS=32} [2025-01-10 06:44:20,157 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 26 predicate places. [2025-01-10 06:44:20,157 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 32 transitions, 196 flow [2025-01-10 06:44:20,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2025-01-10 06:44:20,159 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:44:20,159 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:44:20,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-10 06:44:20,159 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:44:20,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:44:20,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1815838693, now seen corresponding path program 2 times [2025-01-10 06:44:20,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:44:20,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745964561] [2025-01-10 06:44:20,162 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:44:20,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:44:20,171 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 11 statements into 1 equivalence classes. [2025-01-10 06:44:20,186 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-10 06:44:20,187 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 06:44:20,188 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:44:20,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:44:20,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:44:20,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745964561] [2025-01-10 06:44:20,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745964561] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:44:20,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:44:20,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 06:44:20,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843271036] [2025-01-10 06:44:20,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:44:20,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 06:44:20,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:44:20,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 06:44:20,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 06:44:20,337 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 21 [2025-01-10 06:44:20,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 32 transitions, 196 flow. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2025-01-10 06:44:20,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:44:20,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 21 [2025-01-10 06:44:20,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:44:20,418 INFO L124 PetriNetUnfolderBase]: 25/104 cut-off events. [2025-01-10 06:44:20,419 INFO L125 PetriNetUnfolderBase]: For 176/180 co-relation queries the response was YES. [2025-01-10 06:44:20,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 385 conditions, 104 events. 25/104 cut-off events. For 176/180 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 424 event pairs, 0 based on Foata normal form. 7/111 useless extension candidates. Maximal degree in co-relation 360. Up to 31 conditions per place. [2025-01-10 06:44:20,421 INFO L140 encePairwiseOnDemand]: 14/21 looper letters, 31 selfloop transitions, 12 changer transitions 0/51 dead transitions. [2025-01-10 06:44:20,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 51 transitions, 396 flow [2025-01-10 06:44:20,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:44:20,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:44:20,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 66 transitions. [2025-01-10 06:44:20,422 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2025-01-10 06:44:20,422 INFO L175 Difference]: Start difference. First operand has 50 places, 32 transitions, 196 flow. Second operand 5 states and 66 transitions. [2025-01-10 06:44:20,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 51 transitions, 396 flow [2025-01-10 06:44:20,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 51 transitions, 370 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:44:20,424 INFO L231 Difference]: Finished difference. Result has 54 places, 36 transitions, 245 flow [2025-01-10 06:44:20,424 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=245, PETRI_PLACES=54, PETRI_TRANSITIONS=36} [2025-01-10 06:44:20,425 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 30 predicate places. [2025-01-10 06:44:20,425 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 36 transitions, 245 flow [2025-01-10 06:44:20,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2025-01-10 06:44:20,425 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:44:20,425 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:44:20,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-10 06:44:20,425 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:44:20,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:44:20,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1048367826, now seen corresponding path program 1 times [2025-01-10 06:44:20,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:44:20,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708850749] [2025-01-10 06:44:20,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:44:20,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:44:20,436 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-10 06:44:20,442 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-10 06:44:20,442 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:44:20,442 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:44:20,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:44:20,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:44:20,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708850749] [2025-01-10 06:44:20,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708850749] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:44:20,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:44:20,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 06:44:20,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15340390] [2025-01-10 06:44:20,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:44:20,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 06:44:20,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:44:20,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 06:44:20,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 06:44:20,561 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 21 [2025-01-10 06:44:20,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 36 transitions, 245 flow. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2025-01-10 06:44:20,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:44:20,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 21 [2025-01-10 06:44:20,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:44:20,659 INFO L124 PetriNetUnfolderBase]: 30/131 cut-off events. [2025-01-10 06:44:20,659 INFO L125 PetriNetUnfolderBase]: For 298/303 co-relation queries the response was YES. [2025-01-10 06:44:20,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 509 conditions, 131 events. 30/131 cut-off events. For 298/303 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 602 event pairs, 11 based on Foata normal form. 10/141 useless extension candidates. Maximal degree in co-relation 482. Up to 57 conditions per place. [2025-01-10 06:44:20,660 INFO L140 encePairwiseOnDemand]: 13/21 looper letters, 34 selfloop transitions, 17 changer transitions 0/59 dead transitions. [2025-01-10 06:44:20,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 59 transitions, 493 flow [2025-01-10 06:44:20,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:44:20,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:44:20,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 72 transitions. [2025-01-10 06:44:20,661 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6857142857142857 [2025-01-10 06:44:20,661 INFO L175 Difference]: Start difference. First operand has 54 places, 36 transitions, 245 flow. Second operand 5 states and 72 transitions. [2025-01-10 06:44:20,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 59 transitions, 493 flow [2025-01-10 06:44:20,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 59 transitions, 462 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-01-10 06:44:20,664 INFO L231 Difference]: Finished difference. Result has 59 places, 46 transitions, 355 flow [2025-01-10 06:44:20,664 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=355, PETRI_PLACES=59, PETRI_TRANSITIONS=46} [2025-01-10 06:44:20,664 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 35 predicate places. [2025-01-10 06:44:20,664 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 46 transitions, 355 flow [2025-01-10 06:44:20,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2025-01-10 06:44:20,665 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:44:20,665 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:44:20,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-10 06:44:20,665 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:44:20,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:44:20,665 INFO L85 PathProgramCache]: Analyzing trace with hash -810735161, now seen corresponding path program 3 times [2025-01-10 06:44:20,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:44:20,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315873] [2025-01-10 06:44:20,667 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 06:44:20,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:44:20,674 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 11 statements into 1 equivalence classes. [2025-01-10 06:44:20,678 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-10 06:44:20,680 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-01-10 06:44:20,680 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:44:20,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:44:20,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:44:20,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315873] [2025-01-10 06:44:20,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315873] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:44:20,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:44:20,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 06:44:20,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391292051] [2025-01-10 06:44:20,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:44:20,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 06:44:20,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:44:20,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 06:44:20,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 06:44:20,812 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 21 [2025-01-10 06:44:20,812 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 46 transitions, 355 flow. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2025-01-10 06:44:20,812 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:44:20,813 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 21 [2025-01-10 06:44:20,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:44:20,889 INFO L124 PetriNetUnfolderBase]: 20/96 cut-off events. [2025-01-10 06:44:20,889 INFO L125 PetriNetUnfolderBase]: For 355/359 co-relation queries the response was YES. [2025-01-10 06:44:20,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 449 conditions, 96 events. 20/96 cut-off events. For 355/359 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 366 event pairs, 0 based on Foata normal form. 10/106 useless extension candidates. Maximal degree in co-relation 419. Up to 34 conditions per place. [2025-01-10 06:44:20,890 INFO L140 encePairwiseOnDemand]: 13/21 looper letters, 35 selfloop transitions, 21 changer transitions 0/64 dead transitions. [2025-01-10 06:44:20,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 64 transitions, 606 flow [2025-01-10 06:44:20,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:44:20,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:44:20,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 72 transitions. [2025-01-10 06:44:20,896 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6857142857142857 [2025-01-10 06:44:20,896 INFO L175 Difference]: Start difference. First operand has 59 places, 46 transitions, 355 flow. Second operand 5 states and 72 transitions. [2025-01-10 06:44:20,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 64 transitions, 606 flow [2025-01-10 06:44:20,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 64 transitions, 577 flow, removed 9 selfloop flow, removed 1 redundant places. [2025-01-10 06:44:20,899 INFO L231 Difference]: Finished difference. Result has 65 places, 54 transitions, 483 flow [2025-01-10 06:44:20,900 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=483, PETRI_PLACES=65, PETRI_TRANSITIONS=54} [2025-01-10 06:44:20,900 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 41 predicate places. [2025-01-10 06:44:20,900 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 54 transitions, 483 flow [2025-01-10 06:44:20,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2025-01-10 06:44:20,900 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:44:20,900 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:44:20,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-10 06:44:20,901 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:44:20,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:44:20,901 INFO L85 PathProgramCache]: Analyzing trace with hash 520618547, now seen corresponding path program 1 times [2025-01-10 06:44:20,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:44:20,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237475476] [2025-01-10 06:44:20,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:44:20,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:44:20,909 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 06:44:20,916 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 06:44:20,916 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:44:20,916 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:44:21,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:44:21,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:44:21,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237475476] [2025-01-10 06:44:21,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237475476] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:44:21,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:44:21,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-10 06:44:21,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510719020] [2025-01-10 06:44:21,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:44:21,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-10 06:44:21,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:44:21,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-10 06:44:21,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-01-10 06:44:21,243 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 21 [2025-01-10 06:44:21,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 54 transitions, 483 flow. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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) [2025-01-10 06:44:21,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:44:21,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 21 [2025-01-10 06:44:21,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:44:21,437 INFO L124 PetriNetUnfolderBase]: 29/110 cut-off events. [2025-01-10 06:44:21,437 INFO L125 PetriNetUnfolderBase]: For 529/531 co-relation queries the response was YES. [2025-01-10 06:44:21,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 586 conditions, 110 events. 29/110 cut-off events. For 529/531 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 401 event pairs, 2 based on Foata normal form. 4/114 useless extension candidates. Maximal degree in co-relation 553. Up to 55 conditions per place. [2025-01-10 06:44:21,440 INFO L140 encePairwiseOnDemand]: 11/21 looper letters, 50 selfloop transitions, 22 changer transitions 0/74 dead transitions. [2025-01-10 06:44:21,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 74 transitions, 797 flow [2025-01-10 06:44:21,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-10 06:44:21,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-01-10 06:44:21,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 64 transitions. [2025-01-10 06:44:21,443 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3386243386243386 [2025-01-10 06:44:21,443 INFO L175 Difference]: Start difference. First operand has 65 places, 54 transitions, 483 flow. Second operand 9 states and 64 transitions. [2025-01-10 06:44:21,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 74 transitions, 797 flow [2025-01-10 06:44:21,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 74 transitions, 761 flow, removed 18 selfloop flow, removed 0 redundant places. [2025-01-10 06:44:21,448 INFO L231 Difference]: Finished difference. Result has 77 places, 63 transitions, 616 flow [2025-01-10 06:44:21,449 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=616, PETRI_PLACES=77, PETRI_TRANSITIONS=63} [2025-01-10 06:44:21,450 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 53 predicate places. [2025-01-10 06:44:21,450 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 63 transitions, 616 flow [2025-01-10 06:44:21,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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) [2025-01-10 06:44:21,451 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:44:21,451 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:44:21,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-10 06:44:21,451 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:44:21,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:44:21,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1289756849, now seen corresponding path program 2 times [2025-01-10 06:44:21,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:44:21,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710637810] [2025-01-10 06:44:21,452 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:44:21,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:44:21,464 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 12 statements into 1 equivalence classes. [2025-01-10 06:44:21,471 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 06:44:21,471 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 06:44:21,471 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:44:21,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:44:21,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:44:21,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710637810] [2025-01-10 06:44:21,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710637810] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:44:21,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:44:21,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-10 06:44:21,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122662517] [2025-01-10 06:44:21,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:44:21,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-10 06:44:21,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:44:21,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-10 06:44:21,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-01-10 06:44:21,720 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 21 [2025-01-10 06:44:21,721 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 63 transitions, 616 flow. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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) [2025-01-10 06:44:21,721 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:44:21,721 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 21 [2025-01-10 06:44:21,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:44:21,931 INFO L124 PetriNetUnfolderBase]: 32/126 cut-off events. [2025-01-10 06:44:21,932 INFO L125 PetriNetUnfolderBase]: For 724/726 co-relation queries the response was YES. [2025-01-10 06:44:21,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 698 conditions, 126 events. 32/126 cut-off events. For 724/726 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 515 event pairs, 0 based on Foata normal form. 4/130 useless extension candidates. Maximal degree in co-relation 659. Up to 35 conditions per place. [2025-01-10 06:44:21,933 INFO L140 encePairwiseOnDemand]: 11/21 looper letters, 53 selfloop transitions, 35 changer transitions 0/90 dead transitions. [2025-01-10 06:44:21,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 90 transitions, 1017 flow [2025-01-10 06:44:21,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-10 06:44:21,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-01-10 06:44:21,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 70 transitions. [2025-01-10 06:44:21,934 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2777777777777778 [2025-01-10 06:44:21,934 INFO L175 Difference]: Start difference. First operand has 77 places, 63 transitions, 616 flow. Second operand 12 states and 70 transitions. [2025-01-10 06:44:21,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 90 transitions, 1017 flow [2025-01-10 06:44:21,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 90 transitions, 1003 flow, removed 4 selfloop flow, removed 1 redundant places. [2025-01-10 06:44:21,939 INFO L231 Difference]: Finished difference. Result has 94 places, 77 transitions, 863 flow [2025-01-10 06:44:21,939 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=609, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=863, PETRI_PLACES=94, PETRI_TRANSITIONS=77} [2025-01-10 06:44:21,940 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 70 predicate places. [2025-01-10 06:44:21,940 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 77 transitions, 863 flow [2025-01-10 06:44:21,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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) [2025-01-10 06:44:21,940 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:44:21,940 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:44:21,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-10 06:44:21,940 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:44:21,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:44:21,941 INFO L85 PathProgramCache]: Analyzing trace with hash 2108195451, now seen corresponding path program 3 times [2025-01-10 06:44:21,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:44:21,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678286687] [2025-01-10 06:44:21,941 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 06:44:21,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:44:21,947 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 12 statements into 1 equivalence classes. [2025-01-10 06:44:21,951 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 06:44:21,954 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-01-10 06:44:21,954 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:44:22,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:44:22,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:44:22,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678286687] [2025-01-10 06:44:22,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678286687] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:44:22,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:44:22,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-10 06:44:22,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172457434] [2025-01-10 06:44:22,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:44:22,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-10 06:44:22,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:44:22,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-10 06:44:22,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-01-10 06:44:22,193 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 21 [2025-01-10 06:44:22,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 77 transitions, 863 flow. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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) [2025-01-10 06:44:22,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:44:22,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 21 [2025-01-10 06:44:22,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:44:22,488 INFO L124 PetriNetUnfolderBase]: 35/140 cut-off events. [2025-01-10 06:44:22,489 INFO L125 PetriNetUnfolderBase]: For 1042/1043 co-relation queries the response was YES. [2025-01-10 06:44:22,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 873 conditions, 140 events. 35/140 cut-off events. For 1042/1043 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 599 event pairs, 2 based on Foata normal form. 2/142 useless extension candidates. Maximal degree in co-relation 826. Up to 70 conditions per place. [2025-01-10 06:44:22,491 INFO L140 encePairwiseOnDemand]: 11/21 looper letters, 67 selfloop transitions, 31 changer transitions 0/100 dead transitions. [2025-01-10 06:44:22,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 100 transitions, 1263 flow [2025-01-10 06:44:22,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-10 06:44:22,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-01-10 06:44:22,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 82 transitions. [2025-01-10 06:44:22,493 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2789115646258503 [2025-01-10 06:44:22,493 INFO L175 Difference]: Start difference. First operand has 94 places, 77 transitions, 863 flow. Second operand 14 states and 82 transitions. [2025-01-10 06:44:22,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 100 transitions, 1263 flow [2025-01-10 06:44:22,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 100 transitions, 1248 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-01-10 06:44:22,504 INFO L231 Difference]: Finished difference. Result has 111 places, 88 transitions, 1071 flow [2025-01-10 06:44:22,504 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=849, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1071, PETRI_PLACES=111, PETRI_TRANSITIONS=88} [2025-01-10 06:44:22,504 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 87 predicate places. [2025-01-10 06:44:22,505 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 88 transitions, 1071 flow [2025-01-10 06:44:22,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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) [2025-01-10 06:44:22,505 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:44:22,505 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:44:22,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-10 06:44:22,505 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:44:22,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:44:22,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1964273757, now seen corresponding path program 1 times [2025-01-10 06:44:22,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:44:22,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763027338] [2025-01-10 06:44:22,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:44:22,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:44:22,512 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 06:44:22,519 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 06:44:22,519 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:44:22,519 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:44:22,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:44:22,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:44:22,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763027338] [2025-01-10 06:44:22,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763027338] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:44:22,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:44:22,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-10 06:44:22,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926714162] [2025-01-10 06:44:22,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:44:22,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-10 06:44:22,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:44:22,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-10 06:44:22,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-01-10 06:44:22,730 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 21 [2025-01-10 06:44:22,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 88 transitions, 1071 flow. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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) [2025-01-10 06:44:22,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:44:22,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 21 [2025-01-10 06:44:22,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:44:22,981 INFO L124 PetriNetUnfolderBase]: 40/158 cut-off events. [2025-01-10 06:44:22,981 INFO L125 PetriNetUnfolderBase]: For 1395/1395 co-relation queries the response was YES. [2025-01-10 06:44:22,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1018 conditions, 158 events. 40/158 cut-off events. For 1395/1395 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 728 event pairs, 4 based on Foata normal form. 2/160 useless extension candidates. Maximal degree in co-relation 964. Up to 62 conditions per place. [2025-01-10 06:44:22,982 INFO L140 encePairwiseOnDemand]: 11/21 looper letters, 67 selfloop transitions, 35 changer transitions 0/112 dead transitions. [2025-01-10 06:44:22,982 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 112 transitions, 1445 flow [2025-01-10 06:44:22,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-10 06:44:22,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-01-10 06:44:22,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 70 transitions. [2025-01-10 06:44:22,985 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2777777777777778 [2025-01-10 06:44:22,985 INFO L175 Difference]: Start difference. First operand has 111 places, 88 transitions, 1071 flow. Second operand 12 states and 70 transitions. [2025-01-10 06:44:22,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 112 transitions, 1445 flow [2025-01-10 06:44:22,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 112 transitions, 1388 flow, removed 9 selfloop flow, removed 4 redundant places. [2025-01-10 06:44:22,995 INFO L231 Difference]: Finished difference. Result has 124 places, 100 transitions, 1225 flow [2025-01-10 06:44:22,995 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=1016, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1225, PETRI_PLACES=124, PETRI_TRANSITIONS=100} [2025-01-10 06:44:22,996 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 100 predicate places. [2025-01-10 06:44:22,997 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 100 transitions, 1225 flow [2025-01-10 06:44:22,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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) [2025-01-10 06:44:22,997 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:44:22,997 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:44:22,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-10 06:44:22,998 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:44:22,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:44:22,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1554974075, now seen corresponding path program 2 times [2025-01-10 06:44:22,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:44:22,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401468112] [2025-01-10 06:44:22,998 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:44:22,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:44:23,005 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 12 statements into 1 equivalence classes. [2025-01-10 06:44:23,008 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 06:44:23,008 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 06:44:23,009 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:44:23,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:44:23,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:44:23,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401468112] [2025-01-10 06:44:23,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401468112] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:44:23,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:44:23,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-10 06:44:23,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703984867] [2025-01-10 06:44:23,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:44:23,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-10 06:44:23,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:44:23,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-10 06:44:23,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-01-10 06:44:23,225 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 21 [2025-01-10 06:44:23,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 100 transitions, 1225 flow. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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) [2025-01-10 06:44:23,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:44:23,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 21 [2025-01-10 06:44:23,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:44:23,445 INFO L124 PetriNetUnfolderBase]: 43/172 cut-off events. [2025-01-10 06:44:23,445 INFO L125 PetriNetUnfolderBase]: For 1612/1612 co-relation queries the response was YES. [2025-01-10 06:44:23,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1152 conditions, 172 events. 43/172 cut-off events. For 1612/1612 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 823 event pairs, 4 based on Foata normal form. 2/174 useless extension candidates. Maximal degree in co-relation 1092. Up to 97 conditions per place. [2025-01-10 06:44:23,447 INFO L140 encePairwiseOnDemand]: 11/21 looper letters, 80 selfloop transitions, 31 changer transitions 0/121 dead transitions. [2025-01-10 06:44:23,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 121 transitions, 1618 flow [2025-01-10 06:44:23,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-10 06:44:23,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-01-10 06:44:23,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 82 transitions. [2025-01-10 06:44:23,449 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2789115646258503 [2025-01-10 06:44:23,449 INFO L175 Difference]: Start difference. First operand has 124 places, 100 transitions, 1225 flow. Second operand 14 states and 82 transitions. [2025-01-10 06:44:23,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 121 transitions, 1618 flow [2025-01-10 06:44:23,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 121 transitions, 1609 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-01-10 06:44:23,458 INFO L231 Difference]: Finished difference. Result has 141 places, 109 transitions, 1397 flow [2025-01-10 06:44:23,459 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=1216, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1397, PETRI_PLACES=141, PETRI_TRANSITIONS=109} [2025-01-10 06:44:23,459 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 117 predicate places. [2025-01-10 06:44:23,459 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 109 transitions, 1397 flow [2025-01-10 06:44:23,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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) [2025-01-10 06:44:23,459 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:44:23,460 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:44:23,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-01-10 06:44:23,460 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:44:23,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:44:23,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1479022213, now seen corresponding path program 4 times [2025-01-10 06:44:23,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:44:23,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320309568] [2025-01-10 06:44:23,461 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-10 06:44:23,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:44:23,466 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 12 statements into 2 equivalence classes. [2025-01-10 06:44:23,470 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 06:44:23,470 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-10 06:44:23,470 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:44:23,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:44:23,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:44:23,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320309568] [2025-01-10 06:44:23,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320309568] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:44:23,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:44:23,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-10 06:44:23,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579024519] [2025-01-10 06:44:23,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:44:23,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-10 06:44:23,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:44:23,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-10 06:44:23,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-01-10 06:44:23,717 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 21 [2025-01-10 06:44:23,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 109 transitions, 1397 flow. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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) [2025-01-10 06:44:23,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:44:23,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 21 [2025-01-10 06:44:23,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:44:23,902 INFO L124 PetriNetUnfolderBase]: 41/174 cut-off events. [2025-01-10 06:44:23,902 INFO L125 PetriNetUnfolderBase]: For 1971/1971 co-relation queries the response was YES. [2025-01-10 06:44:23,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1240 conditions, 174 events. 41/174 cut-off events. For 1971/1971 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 865 event pairs, 1 based on Foata normal form. 2/175 useless extension candidates. Maximal degree in co-relation 1174. Up to 81 conditions per place. [2025-01-10 06:44:23,904 INFO L140 encePairwiseOnDemand]: 11/21 looper letters, 71 selfloop transitions, 48 changer transitions 0/127 dead transitions. [2025-01-10 06:44:23,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 127 transitions, 1799 flow [2025-01-10 06:44:23,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-10 06:44:23,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-01-10 06:44:23,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 80 transitions. [2025-01-10 06:44:23,905 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.272108843537415 [2025-01-10 06:44:23,905 INFO L175 Difference]: Start difference. First operand has 141 places, 109 transitions, 1397 flow. Second operand 14 states and 80 transitions. [2025-01-10 06:44:23,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 127 transitions, 1799 flow [2025-01-10 06:44:23,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 127 transitions, 1753 flow, removed 9 selfloop flow, removed 4 redundant places. [2025-01-10 06:44:23,914 INFO L231 Difference]: Finished difference. Result has 153 places, 115 transitions, 1546 flow [2025-01-10 06:44:23,915 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=1351, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1546, PETRI_PLACES=153, PETRI_TRANSITIONS=115} [2025-01-10 06:44:23,916 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 129 predicate places. [2025-01-10 06:44:23,916 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 115 transitions, 1546 flow [2025-01-10 06:44:23,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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) [2025-01-10 06:44:23,916 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:44:23,916 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:44:23,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-01-10 06:44:23,916 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:44:23,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:44:23,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1123800711, now seen corresponding path program 3 times [2025-01-10 06:44:23,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:44:23,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744964355] [2025-01-10 06:44:23,917 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 06:44:23,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:44:23,922 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 12 statements into 1 equivalence classes. [2025-01-10 06:44:23,925 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 06:44:23,925 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-01-10 06:44:23,925 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:44:24,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:44:24,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:44:24,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744964355] [2025-01-10 06:44:24,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744964355] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:44:24,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:44:24,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-10 06:44:24,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396586440] [2025-01-10 06:44:24,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:44:24,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-10 06:44:24,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:44:24,121 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-10 06:44:24,121 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-01-10 06:44:24,143 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 21 [2025-01-10 06:44:24,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 115 transitions, 1546 flow. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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) [2025-01-10 06:44:24,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:44:24,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 21 [2025-01-10 06:44:24,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:44:24,374 INFO L124 PetriNetUnfolderBase]: 40/178 cut-off events. [2025-01-10 06:44:24,374 INFO L125 PetriNetUnfolderBase]: For 2234/2234 co-relation queries the response was YES. [2025-01-10 06:44:24,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1297 conditions, 178 events. 40/178 cut-off events. For 2234/2234 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 905 event pairs, 5 based on Foata normal form. 2/180 useless extension candidates. Maximal degree in co-relation 1228. Up to 101 conditions per place. [2025-01-10 06:44:24,376 INFO L140 encePairwiseOnDemand]: 11/21 looper letters, 85 selfloop transitions, 33 changer transitions 0/130 dead transitions. [2025-01-10 06:44:24,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 130 transitions, 1919 flow [2025-01-10 06:44:24,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-10 06:44:24,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-01-10 06:44:24,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 78 transitions. [2025-01-10 06:44:24,377 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2857142857142857 [2025-01-10 06:44:24,377 INFO L175 Difference]: Start difference. First operand has 153 places, 115 transitions, 1546 flow. Second operand 13 states and 78 transitions. [2025-01-10 06:44:24,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 130 transitions, 1919 flow [2025-01-10 06:44:24,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 130 transitions, 1832 flow, removed 17 selfloop flow, removed 7 redundant places. [2025-01-10 06:44:24,389 INFO L231 Difference]: Finished difference. Result has 161 places, 120 transitions, 1603 flow [2025-01-10 06:44:24,389 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=1459, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1603, PETRI_PLACES=161, PETRI_TRANSITIONS=120} [2025-01-10 06:44:24,390 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 137 predicate places. [2025-01-10 06:44:24,390 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 120 transitions, 1603 flow [2025-01-10 06:44:24,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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) [2025-01-10 06:44:24,390 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:44:24,390 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:44:24,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-01-10 06:44:24,390 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:44:24,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:44:24,391 INFO L85 PathProgramCache]: Analyzing trace with hash -470548321, now seen corresponding path program 4 times [2025-01-10 06:44:24,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:44:24,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173472042] [2025-01-10 06:44:24,391 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-10 06:44:24,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:44:24,395 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 12 statements into 2 equivalence classes. [2025-01-10 06:44:24,398 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 06:44:24,398 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-10 06:44:24,398 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:44:24,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:44:24,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:44:24,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173472042] [2025-01-10 06:44:24,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173472042] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:44:24,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:44:24,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-10 06:44:24,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389339909] [2025-01-10 06:44:24,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:44:24,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-10 06:44:24,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:44:24,572 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-10 06:44:24,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-01-10 06:44:24,591 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 21 [2025-01-10 06:44:24,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 120 transitions, 1603 flow. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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) [2025-01-10 06:44:24,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:44:24,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 21 [2025-01-10 06:44:24,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:44:24,827 INFO L124 PetriNetUnfolderBase]: 38/180 cut-off events. [2025-01-10 06:44:24,827 INFO L125 PetriNetUnfolderBase]: For 2299/2299 co-relation queries the response was YES. [2025-01-10 06:44:24,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1319 conditions, 180 events. 38/180 cut-off events. For 2299/2299 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 953 event pairs, 2 based on Foata normal form. 2/182 useless extension candidates. Maximal degree in co-relation 1249. Up to 64 conditions per place. [2025-01-10 06:44:24,834 INFO L140 encePairwiseOnDemand]: 11/21 looper letters, 77 selfloop transitions, 48 changer transitions 0/137 dead transitions. [2025-01-10 06:44:24,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 137 transitions, 2005 flow [2025-01-10 06:44:24,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-10 06:44:24,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-01-10 06:44:24,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 74 transitions. [2025-01-10 06:44:24,840 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.27106227106227104 [2025-01-10 06:44:24,840 INFO L175 Difference]: Start difference. First operand has 161 places, 120 transitions, 1603 flow. Second operand 13 states and 74 transitions. [2025-01-10 06:44:24,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 137 transitions, 2005 flow [2025-01-10 06:44:24,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 137 transitions, 1934 flow, removed 8 selfloop flow, removed 7 redundant places. [2025-01-10 06:44:24,861 INFO L231 Difference]: Finished difference. Result has 169 places, 126 transitions, 1728 flow [2025-01-10 06:44:24,866 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=1534, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1728, PETRI_PLACES=169, PETRI_TRANSITIONS=126} [2025-01-10 06:44:24,866 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 145 predicate places. [2025-01-10 06:44:24,866 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 126 transitions, 1728 flow [2025-01-10 06:44:24,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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) [2025-01-10 06:44:24,866 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:44:24,866 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:44:24,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-01-10 06:44:24,867 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:44:24,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:44:24,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1014193618, now seen corresponding path program 1 times [2025-01-10 06:44:24,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:44:24,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39352815] [2025-01-10 06:44:24,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:44:24,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:44:24,871 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-10 06:44:24,874 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 06:44:24,875 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:44:24,875 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:44:25,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:44:25,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:44:25,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39352815] [2025-01-10 06:44:25,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39352815] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:44:25,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:44:25,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-10 06:44:25,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187653528] [2025-01-10 06:44:25,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:44:25,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-10 06:44:25,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:44:25,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-10 06:44:25,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-01-10 06:44:25,093 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 21 [2025-01-10 06:44:25,093 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 126 transitions, 1728 flow. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 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) [2025-01-10 06:44:25,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:44:25,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 21 [2025-01-10 06:44:25,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:44:25,297 INFO L124 PetriNetUnfolderBase]: 38/179 cut-off events. [2025-01-10 06:44:25,297 INFO L125 PetriNetUnfolderBase]: For 2361/2361 co-relation queries the response was YES. [2025-01-10 06:44:25,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1345 conditions, 179 events. 38/179 cut-off events. For 2361/2361 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 935 event pairs, 2 based on Foata normal form. 1/180 useless extension candidates. Maximal degree in co-relation 1273. Up to 64 conditions per place. [2025-01-10 06:44:25,299 INFO L140 encePairwiseOnDemand]: 11/21 looper letters, 76 selfloop transitions, 49 changer transitions 0/137 dead transitions. [2025-01-10 06:44:25,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 137 transitions, 2056 flow [2025-01-10 06:44:25,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-10 06:44:25,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-01-10 06:44:25,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 80 transitions. [2025-01-10 06:44:25,300 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.25396825396825395 [2025-01-10 06:44:25,300 INFO L175 Difference]: Start difference. First operand has 169 places, 126 transitions, 1728 flow. Second operand 15 states and 80 transitions. [2025-01-10 06:44:25,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 137 transitions, 2056 flow [2025-01-10 06:44:25,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 137 transitions, 1932 flow, removed 17 selfloop flow, removed 16 redundant places. [2025-01-10 06:44:25,312 INFO L231 Difference]: Finished difference. Result has 166 places, 125 transitions, 1682 flow [2025-01-10 06:44:25,312 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=1584, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1682, PETRI_PLACES=166, PETRI_TRANSITIONS=125} [2025-01-10 06:44:25,312 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 142 predicate places. [2025-01-10 06:44:25,312 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 125 transitions, 1682 flow [2025-01-10 06:44:25,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 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) [2025-01-10 06:44:25,312 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:44:25,312 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:44:25,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-01-10 06:44:25,312 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:44:25,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:44:25,313 INFO L85 PathProgramCache]: Analyzing trace with hash 929549734, now seen corresponding path program 1 times [2025-01-10 06:44:25,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:44:25,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242739915] [2025-01-10 06:44:25,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:44:25,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:44:25,317 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-10 06:44:25,320 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 06:44:25,320 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:44:25,320 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:44:25,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:44:25,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:44:25,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242739915] [2025-01-10 06:44:25,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242739915] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:44:25,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:44:25,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-10 06:44:25,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823666081] [2025-01-10 06:44:25,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:44:25,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-10 06:44:25,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:44:25,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-10 06:44:25,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-01-10 06:44:25,490 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 21 [2025-01-10 06:44:25,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 125 transitions, 1682 flow. Second operand has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 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) [2025-01-10 06:44:25,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:44:25,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 21 [2025-01-10 06:44:25,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:44:25,682 INFO L124 PetriNetUnfolderBase]: 37/176 cut-off events. [2025-01-10 06:44:25,682 INFO L125 PetriNetUnfolderBase]: For 2261/2261 co-relation queries the response was YES. [2025-01-10 06:44:25,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1289 conditions, 176 events. 37/176 cut-off events. For 2261/2261 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 920 event pairs, 3 based on Foata normal form. 2/178 useless extension candidates. Maximal degree in co-relation 1228. Up to 110 conditions per place. [2025-01-10 06:44:25,684 INFO L140 encePairwiseOnDemand]: 11/21 looper letters, 75 selfloop transitions, 21 changer transitions 16/134 dead transitions. [2025-01-10 06:44:25,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 134 transitions, 1988 flow [2025-01-10 06:44:25,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-10 06:44:25,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2025-01-10 06:44:25,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 96 transitions. [2025-01-10 06:44:25,685 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2857142857142857 [2025-01-10 06:44:25,685 INFO L175 Difference]: Start difference. First operand has 166 places, 125 transitions, 1682 flow. Second operand 16 states and 96 transitions. [2025-01-10 06:44:25,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 134 transitions, 1988 flow [2025-01-10 06:44:25,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 134 transitions, 1897 flow, removed 6 selfloop flow, removed 12 redundant places. [2025-01-10 06:44:25,695 INFO L231 Difference]: Finished difference. Result has 171 places, 113 transitions, 1478 flow [2025-01-10 06:44:25,695 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=1591, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1478, PETRI_PLACES=171, PETRI_TRANSITIONS=113} [2025-01-10 06:44:25,695 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 147 predicate places. [2025-01-10 06:44:25,695 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 113 transitions, 1478 flow [2025-01-10 06:44:25,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 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) [2025-01-10 06:44:25,695 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:44:25,696 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:44:25,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-01-10 06:44:25,696 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:44:25,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:44:25,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1182861036, now seen corresponding path program 2 times [2025-01-10 06:44:25,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:44:25,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608636766] [2025-01-10 06:44:25,696 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:44:25,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:44:25,701 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 13 statements into 1 equivalence classes. [2025-01-10 06:44:25,703 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 06:44:25,703 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 06:44:25,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:44:25,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:44:25,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:44:25,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608636766] [2025-01-10 06:44:25,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608636766] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:44:25,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:44:25,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-10 06:44:25,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618107633] [2025-01-10 06:44:25,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:44:25,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-10 06:44:25,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:44:25,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-10 06:44:25,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-01-10 06:44:25,855 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 21 [2025-01-10 06:44:25,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 113 transitions, 1478 flow. Second operand has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 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) [2025-01-10 06:44:25,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:44:25,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 21 [2025-01-10 06:44:25,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:44:26,102 INFO L124 PetriNetUnfolderBase]: 31/151 cut-off events. [2025-01-10 06:44:26,102 INFO L125 PetriNetUnfolderBase]: For 1928/1928 co-relation queries the response was YES. [2025-01-10 06:44:26,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1111 conditions, 151 events. 31/151 cut-off events. For 1928/1928 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 726 event pairs, 0 based on Foata normal form. 4/155 useless extension candidates. Maximal degree in co-relation 1055. Up to 84 conditions per place. [2025-01-10 06:44:26,103 INFO L140 encePairwiseOnDemand]: 11/21 looper letters, 58 selfloop transitions, 18 changer transitions 30/122 dead transitions. [2025-01-10 06:44:26,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 122 transitions, 1764 flow [2025-01-10 06:44:26,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-10 06:44:26,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-01-10 06:44:26,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 104 transitions. [2025-01-10 06:44:26,104 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2751322751322751 [2025-01-10 06:44:26,104 INFO L175 Difference]: Start difference. First operand has 171 places, 113 transitions, 1478 flow. Second operand 18 states and 104 transitions. [2025-01-10 06:44:26,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 122 transitions, 1764 flow [2025-01-10 06:44:26,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 122 transitions, 1681 flow, removed 11 selfloop flow, removed 13 redundant places. [2025-01-10 06:44:26,112 INFO L231 Difference]: Finished difference. Result has 167 places, 89 transitions, 1113 flow [2025-01-10 06:44:26,112 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=1395, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1113, PETRI_PLACES=167, PETRI_TRANSITIONS=89} [2025-01-10 06:44:26,113 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 143 predicate places. [2025-01-10 06:44:26,113 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 89 transitions, 1113 flow [2025-01-10 06:44:26,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 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) [2025-01-10 06:44:26,113 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:44:26,113 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:44:26,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-01-10 06:44:26,113 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:44:26,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:44:26,113 INFO L85 PathProgramCache]: Analyzing trace with hash -2027389717, now seen corresponding path program 1 times [2025-01-10 06:44:26,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:44:26,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646838035] [2025-01-10 06:44:26,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:44:26,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:44:26,118 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-10 06:44:26,120 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 06:44:26,120 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:44:26,120 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:44:26,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:44:26,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:44:26,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646838035] [2025-01-10 06:44:26,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646838035] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:44:26,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:44:26,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-10 06:44:26,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393100874] [2025-01-10 06:44:26,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:44:26,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-10 06:44:26,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:44:26,243 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-10 06:44:26,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-01-10 06:44:26,258 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 21 [2025-01-10 06:44:26,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 89 transitions, 1113 flow. Second operand has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 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) [2025-01-10 06:44:26,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:44:26,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 21 [2025-01-10 06:44:26,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:44:26,427 INFO L124 PetriNetUnfolderBase]: 23/119 cut-off events. [2025-01-10 06:44:26,428 INFO L125 PetriNetUnfolderBase]: For 1335/1335 co-relation queries the response was YES. [2025-01-10 06:44:26,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 860 conditions, 119 events. 23/119 cut-off events. For 1335/1335 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 514 event pairs, 0 based on Foata normal form. 2/121 useless extension candidates. Maximal degree in co-relation 808. Up to 70 conditions per place. [2025-01-10 06:44:26,430 INFO L140 encePairwiseOnDemand]: 12/21 looper letters, 53 selfloop transitions, 11 changer transitions 19/97 dead transitions. [2025-01-10 06:44:26,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 97 transitions, 1353 flow [2025-01-10 06:44:26,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-10 06:44:26,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-01-10 06:44:26,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 82 transitions. [2025-01-10 06:44:26,431 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.30036630036630035 [2025-01-10 06:44:26,431 INFO L175 Difference]: Start difference. First operand has 167 places, 89 transitions, 1113 flow. Second operand 13 states and 82 transitions. [2025-01-10 06:44:26,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 97 transitions, 1353 flow [2025-01-10 06:44:26,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 97 transitions, 1157 flow, removed 12 selfloop flow, removed 33 redundant places. [2025-01-10 06:44:26,438 INFO L231 Difference]: Finished difference. Result has 134 places, 75 transitions, 780 flow [2025-01-10 06:44:26,438 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=917, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=780, PETRI_PLACES=134, PETRI_TRANSITIONS=75} [2025-01-10 06:44:26,438 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 110 predicate places. [2025-01-10 06:44:26,438 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 75 transitions, 780 flow [2025-01-10 06:44:26,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 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) [2025-01-10 06:44:26,438 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:44:26,438 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:44:26,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-01-10 06:44:26,438 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:44:26,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:44:26,439 INFO L85 PathProgramCache]: Analyzing trace with hash -762944143, now seen corresponding path program 2 times [2025-01-10 06:44:26,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:44:26,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916694836] [2025-01-10 06:44:26,439 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:44:26,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:44:26,446 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 13 statements into 1 equivalence classes. [2025-01-10 06:44:26,450 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 06:44:26,450 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 06:44:26,450 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:44:26,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:44:26,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:44:26,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916694836] [2025-01-10 06:44:26,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916694836] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:44:26,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:44:26,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-10 06:44:26,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552742099] [2025-01-10 06:44:26,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:44:26,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-10 06:44:26,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:44:26,665 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-10 06:44:26,665 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-01-10 06:44:26,722 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 21 [2025-01-10 06:44:26,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 75 transitions, 780 flow. Second operand has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 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) [2025-01-10 06:44:26,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:44:26,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 21 [2025-01-10 06:44:26,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:44:26,910 INFO L124 PetriNetUnfolderBase]: 17/91 cut-off events. [2025-01-10 06:44:26,910 INFO L125 PetriNetUnfolderBase]: For 699/699 co-relation queries the response was YES. [2025-01-10 06:44:26,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 582 conditions, 91 events. 17/91 cut-off events. For 699/699 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 346 event pairs, 1 based on Foata normal form. 4/95 useless extension candidates. Maximal degree in co-relation 536. Up to 44 conditions per place. [2025-01-10 06:44:26,911 INFO L140 encePairwiseOnDemand]: 12/21 looper letters, 36 selfloop transitions, 7 changer transitions 31/82 dead transitions. [2025-01-10 06:44:26,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 82 transitions, 984 flow [2025-01-10 06:44:26,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-10 06:44:26,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-01-10 06:44:26,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 84 transitions. [2025-01-10 06:44:26,912 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2857142857142857 [2025-01-10 06:44:26,912 INFO L175 Difference]: Start difference. First operand has 134 places, 75 transitions, 780 flow. Second operand 14 states and 84 transitions. [2025-01-10 06:44:26,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 82 transitions, 984 flow [2025-01-10 06:44:26,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 82 transitions, 911 flow, removed 10 selfloop flow, removed 13 redundant places. [2025-01-10 06:44:26,916 INFO L231 Difference]: Finished difference. Result has 125 places, 49 transitions, 449 flow [2025-01-10 06:44:26,916 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=716, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=449, PETRI_PLACES=125, PETRI_TRANSITIONS=49} [2025-01-10 06:44:26,916 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 101 predicate places. [2025-01-10 06:44:26,916 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 49 transitions, 449 flow [2025-01-10 06:44:26,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 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) [2025-01-10 06:44:26,916 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:44:26,917 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:44:26,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-01-10 06:44:26,917 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:44:26,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:44:26,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1702095883, now seen corresponding path program 3 times [2025-01-10 06:44:26,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:44:26,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91755050] [2025-01-10 06:44:26,917 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 06:44:26,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:44:26,922 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 13 statements into 1 equivalence classes. [2025-01-10 06:44:26,925 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 06:44:26,925 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-01-10 06:44:26,925 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:44:27,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:44:27,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:44:27,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91755050] [2025-01-10 06:44:27,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91755050] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:44:27,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:44:27,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-10 06:44:27,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467653219] [2025-01-10 06:44:27,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:44:27,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-10 06:44:27,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:44:27,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-10 06:44:27,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-01-10 06:44:27,080 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 21 [2025-01-10 06:44:27,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 49 transitions, 449 flow. Second operand has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 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) [2025-01-10 06:44:27,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:44:27,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 21 [2025-01-10 06:44:27,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:44:27,213 INFO L124 PetriNetUnfolderBase]: 9/56 cut-off events. [2025-01-10 06:44:27,215 INFO L125 PetriNetUnfolderBase]: For 274/274 co-relation queries the response was YES. [2025-01-10 06:44:27,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 336 conditions, 56 events. 9/56 cut-off events. For 274/274 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 151 event pairs, 1 based on Foata normal form. 2/58 useless extension candidates. Maximal degree in co-relation 303. Up to 28 conditions per place. [2025-01-10 06:44:27,216 INFO L140 encePairwiseOnDemand]: 12/21 looper letters, 25 selfloop transitions, 8 changer transitions 13/52 dead transitions. [2025-01-10 06:44:27,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 52 transitions, 565 flow [2025-01-10 06:44:27,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-10 06:44:27,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-01-10 06:44:27,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 69 transitions. [2025-01-10 06:44:27,217 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.27380952380952384 [2025-01-10 06:44:27,217 INFO L175 Difference]: Start difference. First operand has 125 places, 49 transitions, 449 flow. Second operand 12 states and 69 transitions. [2025-01-10 06:44:27,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 52 transitions, 565 flow [2025-01-10 06:44:27,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 52 transitions, 468 flow, removed 13 selfloop flow, removed 19 redundant places. [2025-01-10 06:44:27,219 INFO L231 Difference]: Finished difference. Result has 98 places, 37 transitions, 288 flow [2025-01-10 06:44:27,219 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=288, PETRI_PLACES=98, PETRI_TRANSITIONS=37} [2025-01-10 06:44:27,220 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 74 predicate places. [2025-01-10 06:44:27,220 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 37 transitions, 288 flow [2025-01-10 06:44:27,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 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) [2025-01-10 06:44:27,220 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:44:27,220 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:44:27,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-01-10 06:44:27,220 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:44:27,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:44:27,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1215757956, now seen corresponding path program 1 times [2025-01-10 06:44:27,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:44:27,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595248012] [2025-01-10 06:44:27,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:44:27,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:44:27,227 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-10 06:44:27,234 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 06:44:27,235 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:44:27,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:44:27,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:44:27,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:44:27,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595248012] [2025-01-10 06:44:27,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595248012] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:44:27,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:44:27,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-10 06:44:27,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488116832] [2025-01-10 06:44:27,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:44:27,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-10 06:44:27,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:44:27,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-10 06:44:27,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-01-10 06:44:27,401 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 21 [2025-01-10 06:44:27,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 37 transitions, 288 flow. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 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) [2025-01-10 06:44:27,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:44:27,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 21 [2025-01-10 06:44:27,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:44:27,537 INFO L124 PetriNetUnfolderBase]: 5/42 cut-off events. [2025-01-10 06:44:27,537 INFO L125 PetriNetUnfolderBase]: For 111/111 co-relation queries the response was YES. [2025-01-10 06:44:27,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 220 conditions, 42 events. 5/42 cut-off events. For 111/111 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 83 event pairs, 0 based on Foata normal form. 1/43 useless extension candidates. Maximal degree in co-relation 198. Up to 9 conditions per place. [2025-01-10 06:44:27,538 INFO L140 encePairwiseOnDemand]: 11/21 looper letters, 20 selfloop transitions, 17 changer transitions 0/39 dead transitions. [2025-01-10 06:44:27,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 39 transitions, 368 flow [2025-01-10 06:44:27,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-10 06:44:27,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-01-10 06:44:27,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 57 transitions. [2025-01-10 06:44:27,538 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2261904761904762 [2025-01-10 06:44:27,538 INFO L175 Difference]: Start difference. First operand has 98 places, 37 transitions, 288 flow. Second operand 12 states and 57 transitions. [2025-01-10 06:44:27,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 39 transitions, 368 flow [2025-01-10 06:44:27,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 39 transitions, 304 flow, removed 5 selfloop flow, removed 20 redundant places. [2025-01-10 06:44:27,540 INFO L231 Difference]: Finished difference. Result has 73 places, 36 transitions, 252 flow [2025-01-10 06:44:27,540 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=252, PETRI_PLACES=73, PETRI_TRANSITIONS=36} [2025-01-10 06:44:27,540 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 49 predicate places. [2025-01-10 06:44:27,540 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 36 transitions, 252 flow [2025-01-10 06:44:27,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 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) [2025-01-10 06:44:27,540 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:44:27,540 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:44:27,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-01-10 06:44:27,540 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:44:27,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:44:27,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1228718066, now seen corresponding path program 3 times [2025-01-10 06:44:27,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:44:27,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110941444] [2025-01-10 06:44:27,541 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 06:44:27,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:44:27,545 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 13 statements into 1 equivalence classes. [2025-01-10 06:44:27,547 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 06:44:27,547 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-01-10 06:44:27,547 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:44:27,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:44:27,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:44:27,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110941444] [2025-01-10 06:44:27,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110941444] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:44:27,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:44:27,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-10 06:44:27,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952381803] [2025-01-10 06:44:27,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:44:27,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-10 06:44:27,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:44:27,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-10 06:44:27,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-01-10 06:44:27,689 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 21 [2025-01-10 06:44:27,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 36 transitions, 252 flow. Second operand has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 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) [2025-01-10 06:44:27,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:44:27,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 21 [2025-01-10 06:44:27,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:44:27,813 INFO L124 PetriNetUnfolderBase]: 4/38 cut-off events. [2025-01-10 06:44:27,813 INFO L125 PetriNetUnfolderBase]: For 78/78 co-relation queries the response was YES. [2025-01-10 06:44:27,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 38 events. 4/38 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 67 event pairs, 0 based on Foata normal form. 3/41 useless extension candidates. Maximal degree in co-relation 166. Up to 8 conditions per place. [2025-01-10 06:44:27,813 INFO L140 encePairwiseOnDemand]: 12/21 looper letters, 8 selfloop transitions, 4 changer transitions 23/37 dead transitions. [2025-01-10 06:44:27,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 37 transitions, 318 flow [2025-01-10 06:44:27,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-10 06:44:27,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-01-10 06:44:27,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 68 transitions. [2025-01-10 06:44:27,815 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2490842490842491 [2025-01-10 06:44:27,815 INFO L175 Difference]: Start difference. First operand has 73 places, 36 transitions, 252 flow. Second operand 13 states and 68 transitions. [2025-01-10 06:44:27,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 37 transitions, 318 flow [2025-01-10 06:44:27,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 37 transitions, 276 flow, removed 2 selfloop flow, removed 12 redundant places. [2025-01-10 06:44:27,815 INFO L231 Difference]: Finished difference. Result has 72 places, 14 transitions, 71 flow [2025-01-10 06:44:27,816 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=71, PETRI_PLACES=72, PETRI_TRANSITIONS=14} [2025-01-10 06:44:27,816 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 48 predicate places. [2025-01-10 06:44:27,816 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 14 transitions, 71 flow [2025-01-10 06:44:27,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 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) [2025-01-10 06:44:27,816 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:44:27,816 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:44:27,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-01-10 06:44:27,816 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:44:27,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:44:27,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1375230906, now seen corresponding path program 1 times [2025-01-10 06:44:27,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:44:27,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400778811] [2025-01-10 06:44:27,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:44:27,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:44:27,822 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-10 06:44:27,825 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-10 06:44:27,826 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:44:27,826 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:44:27,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:44:27,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:44:27,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400778811] [2025-01-10 06:44:27,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400778811] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:44:27,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:44:27,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-10 06:44:27,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687254510] [2025-01-10 06:44:27,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:44:27,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-10 06:44:27,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:44:27,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-10 06:44:27,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-01-10 06:44:27,985 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 21 [2025-01-10 06:44:27,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 14 transitions, 71 flow. Second operand has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 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) [2025-01-10 06:44:27,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:44:27,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 21 [2025-01-10 06:44:27,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:44:28,041 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2025-01-10 06:44:28,041 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2025-01-10 06:44:28,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 13 events. 0/13 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/14 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-01-10 06:44:28,042 INFO L140 encePairwiseOnDemand]: 13/21 looper letters, 0 selfloop transitions, 0 changer transitions 13/13 dead transitions. [2025-01-10 06:44:28,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 13 transitions, 89 flow [2025-01-10 06:44:28,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-10 06:44:28,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-01-10 06:44:28,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 39 transitions. [2025-01-10 06:44:28,042 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.20634920634920634 [2025-01-10 06:44:28,042 INFO L175 Difference]: Start difference. First operand has 72 places, 14 transitions, 71 flow. Second operand 9 states and 39 transitions. [2025-01-10 06:44:28,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 13 transitions, 89 flow [2025-01-10 06:44:28,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 13 transitions, 55 flow, removed 1 selfloop flow, removed 17 redundant places. [2025-01-10 06:44:28,043 INFO L231 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow [2025-01-10 06:44:28,043 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=33, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=32, PETRI_TRANSITIONS=0} [2025-01-10 06:44:28,043 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 8 predicate places. [2025-01-10 06:44:28,043 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 0 transitions, 0 flow [2025-01-10 06:44:28,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 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) [2025-01-10 06:44:28,046 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2025-01-10 06:44:28,047 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2025-01-10 06:44:28,047 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2025-01-10 06:44:28,047 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2025-01-10 06:44:28,047 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2025-01-10 06:44:28,047 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2025-01-10 06:44:28,047 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2025-01-10 06:44:28,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-01-10 06:44:28,047 INFO L422 BasicCegarLoop]: Path program histogram: [4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:44:28,051 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-10 06:44:28,051 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-10 06:44:28,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:44:28 BasicIcfg [2025-01-10 06:44:28,056 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-10 06:44:28,057 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 06:44:28,057 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 06:44:28,057 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 06:44:28,057 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:44:18" (3/4) ... [2025-01-10 06:44:28,058 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-10 06:44:28,060 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-01-10 06:44:28,063 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2025-01-10 06:44:28,063 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2025-01-10 06:44:28,064 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-01-10 06:44:28,121 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-10 06:44:28,121 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-10 06:44:28,121 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 06:44:28,123 INFO L158 Benchmark]: Toolchain (without parser) took 10349.04ms. Allocated memory was 167.8MB in the beginning and 276.8MB in the end (delta: 109.1MB). Free memory was 120.2MB in the beginning and 160.1MB in the end (delta: -39.9MB). Peak memory consumption was 68.8MB. Max. memory is 16.1GB. [2025-01-10 06:44:28,123 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 119.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:44:28,123 INFO L158 Benchmark]: CACSL2BoogieTranslator took 319.90ms. Allocated memory is still 167.8MB. Free memory was 120.2MB in the beginning and 97.3MB in the end (delta: 22.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-10 06:44:28,123 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.85ms. Allocated memory is still 167.8MB. Free memory was 97.3MB in the beginning and 95.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:44:28,123 INFO L158 Benchmark]: Boogie Preprocessor took 22.07ms. Allocated memory is still 167.8MB. Free memory was 95.6MB in the beginning and 94.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:44:28,123 INFO L158 Benchmark]: RCFGBuilder took 282.56ms. Allocated memory is still 167.8MB. Free memory was 94.0MB in the beginning and 74.3MB in the end (delta: 19.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-10 06:44:28,123 INFO L158 Benchmark]: TraceAbstraction took 9633.99ms. Allocated memory was 167.8MB in the beginning and 276.8MB in the end (delta: 109.1MB). Free memory was 73.9MB in the beginning and 166.1MB in the end (delta: -92.2MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2025-01-10 06:44:28,124 INFO L158 Benchmark]: Witness Printer took 64.32ms. Allocated memory is still 276.8MB. Free memory was 166.1MB in the beginning and 160.1MB in the end (delta: 6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 06:44:28,125 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 201.3MB. Free memory is still 119.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 319.90ms. Allocated memory is still 167.8MB. Free memory was 120.2MB in the beginning and 97.3MB in the end (delta: 22.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.85ms. Allocated memory is still 167.8MB. Free memory was 97.3MB in the beginning and 95.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.07ms. Allocated memory is still 167.8MB. Free memory was 95.6MB in the beginning and 94.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 282.56ms. Allocated memory is still 167.8MB. Free memory was 94.0MB in the beginning and 74.3MB in the end (delta: 19.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 9633.99ms. Allocated memory was 167.8MB in the beginning and 276.8MB in the end (delta: 109.1MB). Free memory was 73.9MB in the beginning and 166.1MB in the end (delta: -92.2MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * Witness Printer took 64.32ms. Allocated memory is still 276.8MB. Free memory was 166.1MB in the beginning and 160.1MB in the end (delta: 6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3001]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 3001]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 3001]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 3001]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 33 locations, 7 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: 9.6s, OverallIterations: 25, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1066 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 959 mSDsluCounter, 1133 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1065 mSDsCounter, 108 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3761 IncrementalHoareTripleChecker+Invalid, 3869 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 108 mSolverCounterUnsat, 68 mSDtfsCounter, 3761 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 288 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 279 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1728occurred in iteration=16, InterpolantAutomatonStates: 267, 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: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 284 NumberOfCodeBlocks, 284 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 259 ConstructedInterpolants, 0 QuantifiedInterpolants, 2847 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-10 06:44:28,141 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE