./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c00e63dc 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/weaver/chl-chromosome-trans.wvr.c -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 f36f5593156fc25b34b4c706b0d898a2d66ee8bab5f6d91cd69ff9cf3c129193 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 18:47:29,766 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 18:47:29,820 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 18:47:29,823 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 18:47:29,823 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 18:47:29,840 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 18:47:29,841 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 18:47:29,841 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 18:47:29,841 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 18:47:29,841 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 18:47:29,841 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 18:47:29,841 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 18:47:29,841 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 18:47:29,842 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 18:47:29,842 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 18:47:29,842 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 18:47:29,842 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 18:47:29,842 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 18:47:29,842 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 18:47:29,842 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 18:47:29,842 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 18:47:29,842 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 18:47:29,842 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 18:47:29,842 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 18:47:29,842 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 18:47:29,842 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 18:47:29,842 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 18:47:29,842 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 18:47:29,842 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 18:47:29,842 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 18:47:29,842 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 18:47:29,843 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 18:47:29,843 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 18:47:29,843 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 18:47:29,843 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:47:29,843 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 18:47:29,843 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 18:47:29,843 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 18:47:29,843 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 18:47:29,843 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 18:47:29,843 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 18:47:29,843 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 18:47:29,843 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 18:47:29,843 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 18:47:29,843 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 18:47:29,843 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 -> f36f5593156fc25b34b4c706b0d898a2d66ee8bab5f6d91cd69ff9cf3c129193 [2025-02-06 18:47:30,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 18:47:30,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 18:47:30,047 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 18:47:30,048 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 18:47:30,048 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 18:47:30,048 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c [2025-02-06 18:47:31,190 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/914e34173/e0af3ac90dd54289aa439eb9cac3af8f/FLAG180a0a224 [2025-02-06 18:47:31,491 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 18:47:31,492 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c [2025-02-06 18:47:31,506 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/914e34173/e0af3ac90dd54289aa439eb9cac3af8f/FLAG180a0a224 [2025-02-06 18:47:31,531 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/914e34173/e0af3ac90dd54289aa439eb9cac3af8f [2025-02-06 18:47:31,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 18:47:31,533 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 18:47:31,539 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 18:47:31,539 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 18:47:31,542 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 18:47:31,543 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:47:31" (1/1) ... [2025-02-06 18:47:31,543 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@401a04d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:47:31, skipping insertion in model container [2025-02-06 18:47:31,543 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:47:31" (1/1) ... [2025-02-06 18:47:31,562 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 18:47:31,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:47:31,695 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 18:47:31,721 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:47:31,740 INFO L204 MainTranslator]: Completed translation [2025-02-06 18:47:31,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:47:31 WrapperNode [2025-02-06 18:47:31,740 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 18:47:31,741 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 18:47:31,741 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 18:47:31,741 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 18:47:31,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:47:31" (1/1) ... [2025-02-06 18:47:31,751 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:47:31" (1/1) ... [2025-02-06 18:47:31,768 INFO L138 Inliner]: procedures = 25, calls = 32, calls flagged for inlining = 17, calls inlined = 25, statements flattened = 305 [2025-02-06 18:47:31,768 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 18:47:31,769 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 18:47:31,769 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 18:47:31,769 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 18:47:31,775 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:47:31" (1/1) ... [2025-02-06 18:47:31,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:47:31" (1/1) ... [2025-02-06 18:47:31,778 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:47:31" (1/1) ... [2025-02-06 18:47:31,800 INFO L175 MemorySlicer]: Split 11 memory accesses to 2 slices as follows [2, 9]. 82 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2025-02-06 18:47:31,801 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:47:31" (1/1) ... [2025-02-06 18:47:31,801 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:47:31" (1/1) ... [2025-02-06 18:47:31,807 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:47:31" (1/1) ... [2025-02-06 18:47:31,808 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:47:31" (1/1) ... [2025-02-06 18:47:31,809 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:47:31" (1/1) ... [2025-02-06 18:47:31,810 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:47:31" (1/1) ... [2025-02-06 18:47:31,815 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 18:47:31,815 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 18:47:31,815 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 18:47:31,815 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 18:47:31,816 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:47:31" (1/1) ... [2025-02-06 18:47:31,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:47:31,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:47:31,841 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) [2025-02-06 18:47:31,843 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 [2025-02-06 18:47:31,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 18:47:31,860 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-06 18:47:31,860 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-06 18:47:31,860 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-06 18:47:31,860 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-06 18:47:31,860 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-06 18:47:31,860 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-06 18:47:31,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 18:47:31,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 18:47:31,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 18:47:31,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 18:47:31,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 18:47:31,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 18:47:31,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 18:47:31,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 18:47:31,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 18:47:31,862 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 18:47:31,955 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 18:47:31,956 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 18:47:32,325 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 18:47:32,325 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 18:47:32,510 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 18:47:32,511 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 18:47:32,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:47:32 BoogieIcfgContainer [2025-02-06 18:47:32,511 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 18:47:32,512 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 18:47:32,512 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 18:47:32,515 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 18:47:32,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:47:31" (1/3) ... [2025-02-06 18:47:32,516 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bcbfc30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:47:32, skipping insertion in model container [2025-02-06 18:47:32,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:47:31" (2/3) ... [2025-02-06 18:47:32,516 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bcbfc30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:47:32, skipping insertion in model container [2025-02-06 18:47:32,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:47:32" (3/3) ... [2025-02-06 18:47:32,517 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-chromosome-trans.wvr.c [2025-02-06 18:47:32,526 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 18:47:32,527 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-chromosome-trans.wvr.c that has 4 procedures, 96 locations, 1 initial locations, 6 loop locations, and 30 error locations. [2025-02-06 18:47:32,527 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 18:47:32,578 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-06 18:47:32,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 107 transitions, 235 flow [2025-02-06 18:47:32,626 INFO L124 PetriNetUnfolderBase]: 12/104 cut-off events. [2025-02-06 18:47:32,627 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-06 18:47:32,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 104 events. 12/104 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 395 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2025-02-06 18:47:32,630 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 107 transitions, 235 flow [2025-02-06 18:47:32,632 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 102 transitions, 219 flow [2025-02-06 18:47:32,636 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:47:32,642 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;@6693bdfc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:47:32,643 INFO L334 AbstractCegarLoop]: Starting to check reachability of 57 error locations. [2025-02-06 18:47:32,646 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:47:32,646 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-02-06 18:47:32,646 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:47:32,646 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:47:32,646 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-06 18:47:32,647 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2025-02-06 18:47:32,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:47:32,650 INFO L85 PathProgramCache]: Analyzing trace with hash 879331, now seen corresponding path program 1 times [2025-02-06 18:47:32,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:47:32,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222736704] [2025-02-06 18:47:32,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:47:32,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:47:32,700 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 18:47:32,712 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 18:47:32,712 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:47:32,712 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:32,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:47:32,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:47:32,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222736704] [2025-02-06 18:47:32,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222736704] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:47:32,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:47:32,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:47:32,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118569816] [2025-02-06 18:47:32,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:47:32,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:47:32,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:47:32,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:47:32,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:47:32,866 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 107 [2025-02-06 18:47:32,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 102 transitions, 219 flow. Second operand has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 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) [2025-02-06 18:47:32,869 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:47:32,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 107 [2025-02-06 18:47:32,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:47:33,632 INFO L124 PetriNetUnfolderBase]: 4133/8574 cut-off events. [2025-02-06 18:47:33,633 INFO L125 PetriNetUnfolderBase]: For 232/232 co-relation queries the response was YES. [2025-02-06 18:47:33,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14289 conditions, 8574 events. 4133/8574 cut-off events. For 232/232 co-relation queries the response was YES. Maximal size of possible extension queue 501. Compared 75281 event pairs, 2732 based on Foata normal form. 3/6721 useless extension candidates. Maximal degree in co-relation 13590. Up to 5489 conditions per place. [2025-02-06 18:47:33,689 INFO L140 encePairwiseOnDemand]: 91/107 looper letters, 50 selfloop transitions, 10 changer transitions 0/111 dead transitions. [2025-02-06 18:47:33,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 111 transitions, 357 flow [2025-02-06 18:47:33,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:47:33,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:47:33,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 282 transitions. [2025-02-06 18:47:33,700 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6588785046728972 [2025-02-06 18:47:33,701 INFO L175 Difference]: Start difference. First operand has 100 places, 102 transitions, 219 flow. Second operand 4 states and 282 transitions. [2025-02-06 18:47:33,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 111 transitions, 357 flow [2025-02-06 18:47:33,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 111 transitions, 348 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 18:47:33,711 INFO L231 Difference]: Finished difference. Result has 101 places, 111 transitions, 298 flow [2025-02-06 18:47:33,712 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=298, PETRI_PLACES=101, PETRI_TRANSITIONS=111} [2025-02-06 18:47:33,714 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 1 predicate places. [2025-02-06 18:47:33,714 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 111 transitions, 298 flow [2025-02-06 18:47:33,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 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) [2025-02-06 18:47:33,714 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:47:33,715 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-02-06 18:47:33,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 18:47:33,715 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2025-02-06 18:47:33,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:47:33,715 INFO L85 PathProgramCache]: Analyzing trace with hash 427134081, now seen corresponding path program 1 times [2025-02-06 18:47:33,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:47:33,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057591386] [2025-02-06 18:47:33,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:47:33,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:47:33,723 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:47:33,733 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:47:33,733 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:47:33,733 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:33,813 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:47:33,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:47:33,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057591386] [2025-02-06 18:47:33,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057591386] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:47:33,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167740104] [2025-02-06 18:47:33,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:47:33,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:47:33,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:47:33,816 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:47:33,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 18:47:33,863 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:47:33,872 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:47:33,872 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:47:33,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:33,874 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:47:33,875 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:47:33,903 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:47:33,904 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:47:33,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167740104] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:47:33,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:47:33,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-06 18:47:33,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190135263] [2025-02-06 18:47:33,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:47:33,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:47:33,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:47:33,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:47:33,905 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:47:33,922 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 107 [2025-02-06 18:47:33,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 111 transitions, 298 flow. Second operand has 6 states, 6 states have (on average 54.833333333333336) internal successors, (329), 6 states have internal predecessors, (329), 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) [2025-02-06 18:47:33,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:47:33,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 107 [2025-02-06 18:47:33,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:47:34,537 INFO L124 PetriNetUnfolderBase]: 4133/8571 cut-off events. [2025-02-06 18:47:34,537 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2025-02-06 18:47:34,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14235 conditions, 8571 events. 4133/8571 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 500. Compared 75237 event pairs, 2732 based on Foata normal form. 3/6723 useless extension candidates. Maximal degree in co-relation 14162. Up to 5474 conditions per place. [2025-02-06 18:47:34,570 INFO L140 encePairwiseOnDemand]: 94/107 looper letters, 40 selfloop transitions, 17 changer transitions 0/108 dead transitions. [2025-02-06 18:47:34,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 108 transitions, 400 flow [2025-02-06 18:47:34,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:47:34,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:47:34,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 384 transitions. [2025-02-06 18:47:34,572 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5981308411214953 [2025-02-06 18:47:34,572 INFO L175 Difference]: Start difference. First operand has 101 places, 111 transitions, 298 flow. Second operand 6 states and 384 transitions. [2025-02-06 18:47:34,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 108 transitions, 400 flow [2025-02-06 18:47:34,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 108 transitions, 400 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 18:47:34,574 INFO L231 Difference]: Finished difference. Result has 103 places, 108 transitions, 320 flow [2025-02-06 18:47:34,575 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=320, PETRI_PLACES=103, PETRI_TRANSITIONS=108} [2025-02-06 18:47:34,575 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 3 predicate places. [2025-02-06 18:47:34,575 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 108 transitions, 320 flow [2025-02-06 18:47:34,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 54.833333333333336) internal successors, (329), 6 states have internal predecessors, (329), 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) [2025-02-06 18:47:34,576 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:47:34,576 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-02-06 18:47:34,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-06 18:47:34,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:47:34,780 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2025-02-06 18:47:34,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:47:34,781 INFO L85 PathProgramCache]: Analyzing trace with hash 356255415, now seen corresponding path program 1 times [2025-02-06 18:47:34,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:47:34,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183272712] [2025-02-06 18:47:34,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:47:34,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:47:34,787 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:47:34,791 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:47:34,791 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:47:34,792 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:34,838 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:47:34,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:47:34,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183272712] [2025-02-06 18:47:34,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183272712] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:47:34,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936148543] [2025-02-06 18:47:34,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:47:34,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:47:34,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:47:34,841 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:47:34,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 18:47:34,884 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:47:34,893 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:47:34,893 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:47:34,893 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:34,893 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:47:34,894 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:47:34,910 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:47:34,910 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:47:34,940 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:47:34,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936148543] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:47:34,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:47:34,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-02-06 18:47:34,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525626267] [2025-02-06 18:47:34,940 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:47:34,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 18:47:34,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:47:34,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 18:47:34,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-06 18:47:34,969 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 107 [2025-02-06 18:47:34,969 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 108 transitions, 320 flow. Second operand has 12 states, 12 states have (on average 55.083333333333336) internal successors, (661), 12 states have internal predecessors, (661), 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) [2025-02-06 18:47:34,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:47:34,969 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 107 [2025-02-06 18:47:34,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:47:35,707 INFO L124 PetriNetUnfolderBase]: 4142/8607 cut-off events. [2025-02-06 18:47:35,707 INFO L125 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2025-02-06 18:47:35,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14376 conditions, 8607 events. 4142/8607 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 498. Compared 75533 event pairs, 2732 based on Foata normal form. 9/6765 useless extension candidates. Maximal degree in co-relation 14164. Up to 5489 conditions per place. [2025-02-06 18:47:35,760 INFO L140 encePairwiseOnDemand]: 94/107 looper letters, 47 selfloop transitions, 37 changer transitions 0/135 dead transitions. [2025-02-06 18:47:35,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 135 transitions, 662 flow [2025-02-06 18:47:35,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 18:47:35,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 18:47:35,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 633 transitions. [2025-02-06 18:47:35,764 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.591588785046729 [2025-02-06 18:47:35,764 INFO L175 Difference]: Start difference. First operand has 103 places, 108 transitions, 320 flow. Second operand 10 states and 633 transitions. [2025-02-06 18:47:35,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 135 transitions, 662 flow [2025-02-06 18:47:35,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 135 transitions, 579 flow, removed 16 selfloop flow, removed 5 redundant places. [2025-02-06 18:47:35,768 INFO L231 Difference]: Finished difference. Result has 110 places, 135 transitions, 535 flow [2025-02-06 18:47:35,769 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=535, PETRI_PLACES=110, PETRI_TRANSITIONS=135} [2025-02-06 18:47:35,770 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 10 predicate places. [2025-02-06 18:47:35,770 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 135 transitions, 535 flow [2025-02-06 18:47:35,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 55.083333333333336) internal successors, (661), 12 states have internal predecessors, (661), 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) [2025-02-06 18:47:35,770 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:47:35,770 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:47:35,778 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 18:47:35,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:47:35,975 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2025-02-06 18:47:35,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:47:35,976 INFO L85 PathProgramCache]: Analyzing trace with hash 617461123, now seen corresponding path program 1 times [2025-02-06 18:47:35,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:47:35,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904752833] [2025-02-06 18:47:35,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:47:35,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:47:35,993 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 18:47:36,026 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 18:47:36,026 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:47:36,026 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:36,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:47:36,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:47:36,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904752833] [2025-02-06 18:47:36,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904752833] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:47:36,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:47:36,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:47:36,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228063923] [2025-02-06 18:47:36,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:47:36,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:47:36,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:47:36,121 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:47:36,121 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:47:36,121 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 107 [2025-02-06 18:47:36,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 135 transitions, 535 flow. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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) [2025-02-06 18:47:36,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:47:36,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 107 [2025-02-06 18:47:36,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:47:36,572 INFO L124 PetriNetUnfolderBase]: 4139/8604 cut-off events. [2025-02-06 18:47:36,573 INFO L125 PetriNetUnfolderBase]: For 157/157 co-relation queries the response was YES. [2025-02-06 18:47:36,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14386 conditions, 8604 events. 4139/8604 cut-off events. For 157/157 co-relation queries the response was YES. Maximal size of possible extension queue 498. Compared 75318 event pairs, 2732 based on Foata normal form. 3/6757 useless extension candidates. Maximal degree in co-relation 14288. Up to 5503 conditions per place. [2025-02-06 18:47:36,610 INFO L140 encePairwiseOnDemand]: 100/107 looper letters, 66 selfloop transitions, 12 changer transitions 0/132 dead transitions. [2025-02-06 18:47:36,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 132 transitions, 677 flow [2025-02-06 18:47:36,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:47:36,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:47:36,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 234 transitions. [2025-02-06 18:47:36,611 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7289719626168224 [2025-02-06 18:47:36,611 INFO L175 Difference]: Start difference. First operand has 110 places, 135 transitions, 535 flow. Second operand 3 states and 234 transitions. [2025-02-06 18:47:36,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 132 transitions, 677 flow [2025-02-06 18:47:36,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 132 transitions, 629 flow, removed 9 selfloop flow, removed 3 redundant places. [2025-02-06 18:47:36,615 INFO L231 Difference]: Finished difference. Result has 109 places, 132 transitions, 497 flow [2025-02-06 18:47:36,615 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=497, PETRI_PLACES=109, PETRI_TRANSITIONS=132} [2025-02-06 18:47:36,615 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 9 predicate places. [2025-02-06 18:47:36,615 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 132 transitions, 497 flow [2025-02-06 18:47:36,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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) [2025-02-06 18:47:36,616 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:47:36,616 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2025-02-06 18:47:36,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 18:47:36,616 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2025-02-06 18:47:36,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:47:36,616 INFO L85 PathProgramCache]: Analyzing trace with hash 290573845, now seen corresponding path program 2 times [2025-02-06 18:47:36,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:47:36,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883965503] [2025-02-06 18:47:36,617 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:47:36,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:47:36,623 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-06 18:47:36,626 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-02-06 18:47:36,626 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:47:36,626 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:36,658 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-06 18:47:36,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:47:36,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883965503] [2025-02-06 18:47:36,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883965503] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:47:36,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595900503] [2025-02-06 18:47:36,659 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:47:36,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:47:36,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:47:36,662 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:47:36,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 18:47:36,708 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-06 18:47:36,715 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-02-06 18:47:36,715 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:47:36,715 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:36,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:47:36,716 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:47:36,733 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-06 18:47:36,733 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:47:36,754 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-06 18:47:36,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595900503] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:47:36,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:47:36,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2025-02-06 18:47:36,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840944971] [2025-02-06 18:47:36,754 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:47:36,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:47:36,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:47:36,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:47:36,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:47:36,774 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 107 [2025-02-06 18:47:36,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 132 transitions, 497 flow. Second operand has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 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) [2025-02-06 18:47:36,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:47:36,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 107 [2025-02-06 18:47:36,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:47:37,180 INFO L124 PetriNetUnfolderBase]: 4139/8601 cut-off events. [2025-02-06 18:47:37,181 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2025-02-06 18:47:37,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14354 conditions, 8601 events. 4139/8601 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 498. Compared 75208 event pairs, 2732 based on Foata normal form. 3/6756 useless extension candidates. Maximal degree in co-relation 14275. Up to 5476 conditions per place. [2025-02-06 18:47:37,221 INFO L140 encePairwiseOnDemand]: 96/107 looper letters, 43 selfloop transitions, 35 changer transitions 0/129 dead transitions. [2025-02-06 18:47:37,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 129 transitions, 623 flow [2025-02-06 18:47:37,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:47:37,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:47:37,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 264 transitions. [2025-02-06 18:47:37,223 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.616822429906542 [2025-02-06 18:47:37,223 INFO L175 Difference]: Start difference. First operand has 109 places, 132 transitions, 497 flow. Second operand 4 states and 264 transitions. [2025-02-06 18:47:37,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 129 transitions, 623 flow [2025-02-06 18:47:37,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 129 transitions, 569 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-02-06 18:47:37,225 INFO L231 Difference]: Finished difference. Result has 103 places, 129 transitions, 483 flow [2025-02-06 18:47:37,225 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=483, PETRI_PLACES=103, PETRI_TRANSITIONS=129} [2025-02-06 18:47:37,226 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 3 predicate places. [2025-02-06 18:47:37,226 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 129 transitions, 483 flow [2025-02-06 18:47:37,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 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) [2025-02-06 18:47:37,226 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:47:37,226 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:47:37,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-06 18:47:37,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:47:37,427 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2025-02-06 18:47:37,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:47:37,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1258303198, now seen corresponding path program 1 times [2025-02-06 18:47:37,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:47:37,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607546693] [2025-02-06 18:47:37,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:47:37,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:47:37,439 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-06 18:47:37,445 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-06 18:47:37,446 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:47:37,446 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:37,533 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 18:47:37,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:47:37,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607546693] [2025-02-06 18:47:37,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607546693] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:47:37,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:47:37,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:47:37,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019029225] [2025-02-06 18:47:37,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:47:37,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:47:37,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:47:37,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:47:37,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:47:37,550 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 107 [2025-02-06 18:47:37,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 129 transitions, 483 flow. Second operand has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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) [2025-02-06 18:47:37,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:47:37,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 107 [2025-02-06 18:47:37,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:47:38,307 INFO L124 PetriNetUnfolderBase]: 8070/14768 cut-off events. [2025-02-06 18:47:38,307 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2025-02-06 18:47:38,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25913 conditions, 14768 events. 8070/14768 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 843. Compared 126509 event pairs, 2473 based on Foata normal form. 364/12256 useless extension candidates. Maximal degree in co-relation 25703. Up to 5059 conditions per place. [2025-02-06 18:47:38,362 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 128 selfloop transitions, 5 changer transitions 0/178 dead transitions. [2025-02-06 18:47:38,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 178 transitions, 853 flow [2025-02-06 18:47:38,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:47:38,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:47:38,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 319 transitions. [2025-02-06 18:47:38,364 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7453271028037384 [2025-02-06 18:47:38,364 INFO L175 Difference]: Start difference. First operand has 103 places, 129 transitions, 483 flow. Second operand 4 states and 319 transitions. [2025-02-06 18:47:38,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 178 transitions, 853 flow [2025-02-06 18:47:38,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 178 transitions, 783 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 18:47:38,367 INFO L231 Difference]: Finished difference. Result has 105 places, 131 transitions, 447 flow [2025-02-06 18:47:38,367 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=411, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=447, PETRI_PLACES=105, PETRI_TRANSITIONS=131} [2025-02-06 18:47:38,367 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 5 predicate places. [2025-02-06 18:47:38,368 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 131 transitions, 447 flow [2025-02-06 18:47:38,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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) [2025-02-06 18:47:38,368 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:47:38,368 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:47:38,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 18:47:38,368 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2025-02-06 18:47:38,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:47:38,368 INFO L85 PathProgramCache]: Analyzing trace with hash -352692612, now seen corresponding path program 1 times [2025-02-06 18:47:38,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:47:38,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528096703] [2025-02-06 18:47:38,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:47:38,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:47:38,376 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 18:47:38,384 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 18:47:38,384 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:47:38,384 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:38,475 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:47:38,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:47:38,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528096703] [2025-02-06 18:47:38,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528096703] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:47:38,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211652927] [2025-02-06 18:47:38,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:47:38,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:47:38,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:47:38,478 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:47:38,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 18:47:38,528 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 18:47:38,546 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 18:47:38,546 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:47:38,546 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:38,547 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 18:47:38,548 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:47:38,580 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:47:38,580 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:47:38,606 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:47:38,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211652927] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:47:38,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:47:38,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 11 [2025-02-06 18:47:38,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905894882] [2025-02-06 18:47:38,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:47:38,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 18:47:38,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:47:38,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 18:47:38,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2025-02-06 18:47:38,635 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 107 [2025-02-06 18:47:38,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 131 transitions, 447 flow. Second operand has 11 states, 11 states have (on average 56.18181818181818) internal successors, (618), 11 states have internal predecessors, (618), 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) [2025-02-06 18:47:38,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:47:38,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 107 [2025-02-06 18:47:38,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:47:39,206 INFO L124 PetriNetUnfolderBase]: 5178/10981 cut-off events. [2025-02-06 18:47:39,206 INFO L125 PetriNetUnfolderBase]: For 1890/2156 co-relation queries the response was YES. [2025-02-06 18:47:39,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19640 conditions, 10981 events. 5178/10981 cut-off events. For 1890/2156 co-relation queries the response was YES. Maximal size of possible extension queue 642. Compared 101633 event pairs, 3504 based on Foata normal form. 135/8929 useless extension candidates. Maximal degree in co-relation 19481. Up to 6892 conditions per place. [2025-02-06 18:47:39,245 INFO L140 encePairwiseOnDemand]: 97/107 looper letters, 42 selfloop transitions, 32 changer transitions 0/125 dead transitions. [2025-02-06 18:47:39,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 125 transitions, 565 flow [2025-02-06 18:47:39,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 18:47:39,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 18:47:39,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 444 transitions. [2025-02-06 18:47:39,247 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5927903871829105 [2025-02-06 18:47:39,247 INFO L175 Difference]: Start difference. First operand has 105 places, 131 transitions, 447 flow. Second operand 7 states and 444 transitions. [2025-02-06 18:47:39,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 125 transitions, 565 flow [2025-02-06 18:47:39,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 125 transitions, 565 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 18:47:39,259 INFO L231 Difference]: Finished difference. Result has 111 places, 125 transitions, 481 flow [2025-02-06 18:47:39,260 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=417, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=481, PETRI_PLACES=111, PETRI_TRANSITIONS=125} [2025-02-06 18:47:39,260 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 11 predicate places. [2025-02-06 18:47:39,260 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 125 transitions, 481 flow [2025-02-06 18:47:39,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 56.18181818181818) internal successors, (618), 11 states have internal predecessors, (618), 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) [2025-02-06 18:47:39,261 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:47:39,261 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:47:39,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-06 18:47:39,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2025-02-06 18:47:39,465 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2025-02-06 18:47:39,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:47:39,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1056426020, now seen corresponding path program 2 times [2025-02-06 18:47:39,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:47:39,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313038453] [2025-02-06 18:47:39,465 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:47:39,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:47:39,477 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 37 statements into 2 equivalence classes. [2025-02-06 18:47:39,496 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 37 of 37 statements. [2025-02-06 18:47:39,496 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 18:47:39,496 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:39,634 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-06 18:47:39,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:47:39,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313038453] [2025-02-06 18:47:39,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313038453] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:47:39,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446090854] [2025-02-06 18:47:39,635 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:47:39,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:47:39,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:47:39,639 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:47:39,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 18:47:39,694 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 37 statements into 2 equivalence classes. [2025-02-06 18:47:39,720 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 37 of 37 statements. [2025-02-06 18:47:39,720 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 18:47:39,720 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:39,721 INFO L256 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-06 18:47:39,722 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:47:39,793 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-06 18:47:39,793 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:47:39,845 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-06 18:47:39,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [446090854] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:47:39,845 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:47:39,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2025-02-06 18:47:39,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046486634] [2025-02-06 18:47:39,846 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:47:39,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-06 18:47:39,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:47:39,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-06 18:47:39,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2025-02-06 18:47:39,906 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 107 [2025-02-06 18:47:39,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 125 transitions, 481 flow. Second operand has 18 states, 18 states have (on average 55.611111111111114) internal successors, (1001), 18 states have internal predecessors, (1001), 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) [2025-02-06 18:47:39,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:47:39,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 107 [2025-02-06 18:47:39,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:47:40,589 INFO L124 PetriNetUnfolderBase]: 5175/10981 cut-off events. [2025-02-06 18:47:40,589 INFO L125 PetriNetUnfolderBase]: For 1932/2198 co-relation queries the response was YES. [2025-02-06 18:47:40,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19677 conditions, 10981 events. 5175/10981 cut-off events. For 1932/2198 co-relation queries the response was YES. Maximal size of possible extension queue 642. Compared 101587 event pairs, 3504 based on Foata normal form. 137/8935 useless extension candidates. Maximal degree in co-relation 19484. Up to 6885 conditions per place. [2025-02-06 18:47:40,637 INFO L140 encePairwiseOnDemand]: 97/107 looper letters, 41 selfloop transitions, 33 changer transitions 0/125 dead transitions. [2025-02-06 18:47:40,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 125 transitions, 634 flow [2025-02-06 18:47:40,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 18:47:40,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-06 18:47:40,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 672 transitions. [2025-02-06 18:47:40,639 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5709430756159728 [2025-02-06 18:47:40,639 INFO L175 Difference]: Start difference. First operand has 111 places, 125 transitions, 481 flow. Second operand 11 states and 672 transitions. [2025-02-06 18:47:40,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 125 transitions, 634 flow [2025-02-06 18:47:40,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 125 transitions, 610 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 18:47:40,647 INFO L231 Difference]: Finished difference. Result has 119 places, 125 transitions, 554 flow [2025-02-06 18:47:40,647 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=554, PETRI_PLACES=119, PETRI_TRANSITIONS=125} [2025-02-06 18:47:40,648 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 19 predicate places. [2025-02-06 18:47:40,648 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 125 transitions, 554 flow [2025-02-06 18:47:40,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 55.611111111111114) internal successors, (1001), 18 states have internal predecessors, (1001), 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) [2025-02-06 18:47:40,649 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:47:40,649 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:47:40,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-06 18:47:40,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:47:40,853 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2025-02-06 18:47:40,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:47:40,854 INFO L85 PathProgramCache]: Analyzing trace with hash -2139979460, now seen corresponding path program 3 times [2025-02-06 18:47:40,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:47:40,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3493181] [2025-02-06 18:47:40,854 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:47:40,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:47:40,877 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 55 statements into 6 equivalence classes. [2025-02-06 18:47:40,973 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 55 of 55 statements. [2025-02-06 18:47:40,973 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-02-06 18:47:40,973 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:42,037 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2025-02-06 18:47:42,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:47:42,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3493181] [2025-02-06 18:47:42,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3493181] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:47:42,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060591849] [2025-02-06 18:47:42,038 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:47:42,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:47:42,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:47:42,040 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:47:42,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 18:47:42,102 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 55 statements into 6 equivalence classes. [2025-02-06 18:47:42,190 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 55 of 55 statements. [2025-02-06 18:47:42,191 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-02-06 18:47:42,191 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:42,192 INFO L256 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 48 conjuncts are in the unsatisfiable core [2025-02-06 18:47:42,196 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:47:42,210 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-06 18:47:42,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-06 18:47:42,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 18:47:42,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2025-02-06 18:47:42,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 18:47:42,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2025-02-06 18:47:42,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 18:47:42,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2025-02-06 18:47:42,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 18:47:42,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2025-02-06 18:47:42,619 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-02-06 18:47:42,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2025-02-06 18:47:42,629 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-02-06 18:47:42,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-02-06 18:47:42,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-02-06 18:47:42,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-02-06 18:47:42,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-02-06 18:47:42,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-02-06 18:47:42,739 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 18 proven. 30 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2025-02-06 18:47:42,739 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:48:56,242 INFO L349 Elim1Store]: treesize reduction 244, result has 20.0 percent of original size [2025-02-06 18:48:56,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 50 treesize of output 71 [2025-02-06 18:48:56,263 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 18:48:56,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 29 [2025-02-06 18:48:56,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2025-02-06 18:48:56,344 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 15 proven. 33 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2025-02-06 18:48:56,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060591849] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:48:56,347 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:48:56,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 40 [2025-02-06 18:48:56,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128310424] [2025-02-06 18:48:56,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:48:56,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2025-02-06 18:48:56,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:48:56,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2025-02-06 18:48:56,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=1399, Unknown=26, NotChecked=0, Total=1640 [2025-02-06 18:49:00,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2025-02-06 18:49:04,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2025-02-06 18:49:08,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2025-02-06 18:49:12,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1]