./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/array-eq-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d 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/array-eq-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 e7f1528a4c77969c5bff279724a3ed43475460be047e2e4b141f1353c3ea9cfe --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:07:32,630 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:07:32,691 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:07:32,701 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:07:32,701 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:07:32,720 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:07:32,721 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:07:32,722 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:07:32,722 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:07:32,722 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:07:32,722 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:07:32,723 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:07:32,723 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:07:32,724 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:07:32,724 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:07:32,724 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:07:32,724 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:07:32,724 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:07:32,724 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:07:32,724 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:07:32,724 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:07:32,724 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:07:32,724 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:07:32,725 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:07:32,725 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:07:32,725 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:07:32,725 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:07:32,725 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:07:32,725 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:07:32,725 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:07:32,725 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:07:32,726 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:07:32,726 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:07:32,726 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:07:32,726 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:07:32,726 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:07:32,726 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:07:32,726 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:07:32,726 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:07:32,726 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:07:32,726 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:07:32,726 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:07:32,727 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:07:32,727 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:07:32,727 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:07:32,727 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 -> e7f1528a4c77969c5bff279724a3ed43475460be047e2e4b141f1353c3ea9cfe [2025-02-08 14:07:32,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:07:32,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:07:32,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:07:32,937 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:07:32,937 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:07:32,938 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/array-eq-trans.wvr.c [2025-02-08 14:07:34,063 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c5473a583/b06880fa20ec412cb70eabd438c03047/FLAG4a9a5b2bc [2025-02-08 14:07:34,262 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:07:34,263 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/array-eq-trans.wvr.c [2025-02-08 14:07:34,268 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c5473a583/b06880fa20ec412cb70eabd438c03047/FLAG4a9a5b2bc [2025-02-08 14:07:34,606 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c5473a583/b06880fa20ec412cb70eabd438c03047 [2025-02-08 14:07:34,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:07:34,609 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:07:34,610 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:07:34,610 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:07:34,613 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:07:34,613 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:07:34" (1/1) ... [2025-02-08 14:07:34,614 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38ef1198 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:34, skipping insertion in model container [2025-02-08 14:07:34,614 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:07:34" (1/1) ... [2025-02-08 14:07:34,629 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:07:34,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:07:34,762 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:07:34,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:07:34,802 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:07:34,802 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:34 WrapperNode [2025-02-08 14:07:34,802 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:07:34,803 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:07:34,804 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:07:34,804 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:07:34,808 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:34" (1/1) ... [2025-02-08 14:07:34,814 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:34" (1/1) ... [2025-02-08 14:07:34,840 INFO L138 Inliner]: procedures = 23, calls = 32, calls flagged for inlining = 11, calls inlined = 15, statements flattened = 193 [2025-02-08 14:07:34,844 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:07:34,845 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:07:34,845 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:07:34,845 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:07:34,852 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:34" (1/1) ... [2025-02-08 14:07:34,852 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:34" (1/1) ... [2025-02-08 14:07:34,854 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:34" (1/1) ... [2025-02-08 14:07:34,873 INFO L175 MemorySlicer]: Split 17 memory accesses to 2 slices as follows [2, 15]. 88 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]. [2025-02-08 14:07:34,877 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:34" (1/1) ... [2025-02-08 14:07:34,877 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:34" (1/1) ... [2025-02-08 14:07:34,885 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:34" (1/1) ... [2025-02-08 14:07:34,890 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:34" (1/1) ... [2025-02-08 14:07:34,891 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:34" (1/1) ... [2025-02-08 14:07:34,891 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:34" (1/1) ... [2025-02-08 14:07:34,893 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:07:34,897 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:07:34,897 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:07:34,897 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:07:34,898 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:34" (1/1) ... [2025-02-08 14:07:34,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:07:34,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:34,930 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) [2025-02-08 14:07:34,932 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 [2025-02-08 14:07:34,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:07:34,953 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 14:07:34,953 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 14:07:34,953 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 14:07:34,953 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 14:07:34,953 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-08 14:07:34,953 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-08 14:07:34,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:07:34,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 14:07:34,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 14:07:34,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 14:07:34,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 14:07:34,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:07:34,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:07:34,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 14:07:34,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 14:07:34,954 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 14:07:35,033 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:07:35,034 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:07:35,357 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:07:35,357 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:07:35,617 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:07:35,617 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:07:35,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:07:35 BoogieIcfgContainer [2025-02-08 14:07:35,618 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:07:35,620 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:07:35,620 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:07:35,623 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:07:35,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:07:34" (1/3) ... [2025-02-08 14:07:35,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b9030a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:07:35, skipping insertion in model container [2025-02-08 14:07:35,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:34" (2/3) ... [2025-02-08 14:07:35,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b9030a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:07:35, skipping insertion in model container [2025-02-08 14:07:35,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:07:35" (3/3) ... [2025-02-08 14:07:35,626 INFO L128 eAbstractionObserver]: Analyzing ICFG array-eq-trans.wvr.c [2025-02-08 14:07:35,636 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:07:35,638 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG array-eq-trans.wvr.c that has 4 procedures, 54 locations, 1 initial locations, 6 loop locations, and 12 error locations. [2025-02-08 14:07:35,638 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:07:35,686 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-08 14:07:35,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 62 transitions, 145 flow [2025-02-08 14:07:35,738 INFO L124 PetriNetUnfolderBase]: 9/59 cut-off events. [2025-02-08 14:07:35,741 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-08 14:07:35,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 59 events. 9/59 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 137 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2025-02-08 14:07:35,747 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 62 transitions, 145 flow [2025-02-08 14:07:35,749 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 57 transitions, 129 flow [2025-02-08 14:07:35,755 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:07:35,764 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;@e6b4c3f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:07:35,764 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2025-02-08 14:07:35,766 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:07:35,766 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-02-08 14:07:35,766 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:07:35,767 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:35,767 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-08 14:07:35,767 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:07:35,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:35,771 INFO L85 PathProgramCache]: Analyzing trace with hash 645615, now seen corresponding path program 1 times [2025-02-08 14:07:35,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:35,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543742888] [2025-02-08 14:07:35,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:35,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:35,828 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:07:35,847 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:07:35,847 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:35,847 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:35,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:35,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:35,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543742888] [2025-02-08 14:07:35,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543742888] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:35,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:35,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:07:35,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15079148] [2025-02-08 14:07:35,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:35,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:35,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:35,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:35,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:36,000 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 62 [2025-02-08 14:07:36,002 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 57 transitions, 129 flow. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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) [2025-02-08 14:07:36,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:36,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 62 [2025-02-08 14:07:36,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:36,360 INFO L124 PetriNetUnfolderBase]: 1537/2492 cut-off events. [2025-02-08 14:07:36,360 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2025-02-08 14:07:36,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4580 conditions, 2492 events. 1537/2492 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 14653 event pairs, 930 based on Foata normal form. 3/2044 useless extension candidates. Maximal degree in co-relation 4234. Up to 1944 conditions per place. [2025-02-08 14:07:36,387 INFO L140 encePairwiseOnDemand]: 51/62 looper letters, 28 selfloop transitions, 8 changer transitions 0/54 dead transitions. [2025-02-08 14:07:36,388 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 54 transitions, 195 flow [2025-02-08 14:07:36,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:36,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:36,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 123 transitions. [2025-02-08 14:07:36,399 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4959677419354839 [2025-02-08 14:07:36,400 INFO L175 Difference]: Start difference. First operand has 58 places, 57 transitions, 129 flow. Second operand 4 states and 123 transitions. [2025-02-08 14:07:36,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 54 transitions, 195 flow [2025-02-08 14:07:36,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 54 transitions, 186 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-08 14:07:36,406 INFO L231 Difference]: Finished difference. Result has 53 places, 54 transitions, 130 flow [2025-02-08 14:07:36,408 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=130, PETRI_PLACES=53, PETRI_TRANSITIONS=54} [2025-02-08 14:07:36,412 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, -5 predicate places. [2025-02-08 14:07:36,412 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 54 transitions, 130 flow [2025-02-08 14:07:36,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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) [2025-02-08 14:07:36,412 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:36,413 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-02-08 14:07:36,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:07:36,413 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:07:36,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:36,414 INFO L85 PathProgramCache]: Analyzing trace with hash 20014613, now seen corresponding path program 1 times [2025-02-08 14:07:36,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:36,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651443654] [2025-02-08 14:07:36,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:36,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:36,427 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 14:07:36,432 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:07:36,432 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:36,432 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:36,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:36,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:36,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651443654] [2025-02-08 14:07:36,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651443654] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:36,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:36,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:07:36,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057627673] [2025-02-08 14:07:36,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:36,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:36,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:36,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:36,499 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:36,516 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 62 [2025-02-08 14:07:36,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 54 transitions, 130 flow. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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) [2025-02-08 14:07:36,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:36,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 62 [2025-02-08 14:07:36,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:36,738 INFO L124 PetriNetUnfolderBase]: 1540/2504 cut-off events. [2025-02-08 14:07:36,738 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2025-02-08 14:07:36,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4565 conditions, 2504 events. 1540/2504 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 14672 event pairs, 930 based on Foata normal form. 3/2060 useless extension candidates. Maximal degree in co-relation 4497. Up to 1957 conditions per place. [2025-02-08 14:07:36,753 INFO L140 encePairwiseOnDemand]: 49/62 looper letters, 35 selfloop transitions, 10 changer transitions 0/63 dead transitions. [2025-02-08 14:07:36,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 63 transitions, 252 flow [2025-02-08 14:07:36,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:36,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:36,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 132 transitions. [2025-02-08 14:07:36,754 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.532258064516129 [2025-02-08 14:07:36,754 INFO L175 Difference]: Start difference. First operand has 53 places, 54 transitions, 130 flow. Second operand 4 states and 132 transitions. [2025-02-08 14:07:36,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 63 transitions, 252 flow [2025-02-08 14:07:36,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 63 transitions, 222 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:07:36,756 INFO L231 Difference]: Finished difference. Result has 56 places, 63 transitions, 196 flow [2025-02-08 14:07:36,757 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=196, PETRI_PLACES=56, PETRI_TRANSITIONS=63} [2025-02-08 14:07:36,757 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, -2 predicate places. [2025-02-08 14:07:36,757 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 63 transitions, 196 flow [2025-02-08 14:07:36,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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) [2025-02-08 14:07:36,757 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:36,757 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-02-08 14:07:36,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 14:07:36,759 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:07:36,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:36,759 INFO L85 PathProgramCache]: Analyzing trace with hash -744497589, now seen corresponding path program 1 times [2025-02-08 14:07:36,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:36,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701567280] [2025-02-08 14:07:36,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:36,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:36,768 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:07:36,783 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:07:36,783 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:36,783 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:36,875 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:36,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:36,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701567280] [2025-02-08 14:07:36,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701567280] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:07:36,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235303359] [2025-02-08 14:07:36,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:36,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:36,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:36,878 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) [2025-02-08 14:07:36,880 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 [2025-02-08 14:07:36,931 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:07:36,943 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:07:36,943 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:36,943 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:36,945 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:07:36,947 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:07:36,973 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:36,973 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:07:37,007 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:37,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235303359] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:07:37,008 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:07:37,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2025-02-08 14:07:37,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053807475] [2025-02-08 14:07:37,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:07:37,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 14:07:37,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:37,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 14:07:37,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-02-08 14:07:37,043 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 62 [2025-02-08 14:07:37,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 63 transitions, 196 flow. Second operand has 10 states, 10 states have (on average 22.0) internal successors, (220), 10 states have internal predecessors, (220), 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) [2025-02-08 14:07:37,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:37,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 62 [2025-02-08 14:07:37,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:37,318 INFO L124 PetriNetUnfolderBase]: 1549/2540 cut-off events. [2025-02-08 14:07:37,319 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2025-02-08 14:07:37,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4680 conditions, 2540 events. 1549/2540 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 15050 event pairs, 930 based on Foata normal form. 0/2088 useless extension candidates. Maximal degree in co-relation 4511. Up to 1960 conditions per place. [2025-02-08 14:07:37,332 INFO L140 encePairwiseOnDemand]: 49/62 looper letters, 35 selfloop transitions, 37 changer transitions 0/90 dead transitions. [2025-02-08 14:07:37,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 90 transitions, 460 flow [2025-02-08 14:07:37,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 14:07:37,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 14:07:37,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 291 transitions. [2025-02-08 14:07:37,335 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4693548387096774 [2025-02-08 14:07:37,336 INFO L175 Difference]: Start difference. First operand has 56 places, 63 transitions, 196 flow. Second operand 10 states and 291 transitions. [2025-02-08 14:07:37,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 90 transitions, 460 flow [2025-02-08 14:07:37,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 90 transitions, 460 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:07:37,340 INFO L231 Difference]: Finished difference. Result has 68 places, 90 transitions, 440 flow [2025-02-08 14:07:37,340 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=440, PETRI_PLACES=68, PETRI_TRANSITIONS=90} [2025-02-08 14:07:37,341 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 10 predicate places. [2025-02-08 14:07:37,341 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 90 transitions, 440 flow [2025-02-08 14:07:37,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 22.0) internal successors, (220), 10 states have internal predecessors, (220), 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) [2025-02-08 14:07:37,342 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:37,342 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:37,348 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 [2025-02-08 14:07:37,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:37,546 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:07:37,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:37,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1116913150, now seen corresponding path program 1 times [2025-02-08 14:07:37,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:37,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110607947] [2025-02-08 14:07:37,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:37,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:37,566 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-08 14:07:37,581 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-08 14:07:37,581 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:37,581 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:37,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:37,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:37,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110607947] [2025-02-08 14:07:37,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110607947] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:37,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:37,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:07:37,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302272991] [2025-02-08 14:07:37,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:37,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:37,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:37,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:37,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:37,667 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 62 [2025-02-08 14:07:37,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 90 transitions, 440 flow. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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) [2025-02-08 14:07:37,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:37,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 62 [2025-02-08 14:07:37,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:37,949 INFO L124 PetriNetUnfolderBase]: 1792/2863 cut-off events. [2025-02-08 14:07:37,949 INFO L125 PetriNetUnfolderBase]: For 121/121 co-relation queries the response was YES. [2025-02-08 14:07:37,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5423 conditions, 2863 events. 1792/2863 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 16911 event pairs, 778 based on Foata normal form. 86/2426 useless extension candidates. Maximal degree in co-relation 5328. Up to 1704 conditions per place. [2025-02-08 14:07:37,971 INFO L140 encePairwiseOnDemand]: 58/62 looper letters, 82 selfloop transitions, 3 changer transitions 0/104 dead transitions. [2025-02-08 14:07:37,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 104 transitions, 641 flow [2025-02-08 14:07:37,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:37,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:37,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 150 transitions. [2025-02-08 14:07:37,973 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6048387096774194 [2025-02-08 14:07:37,973 INFO L175 Difference]: Start difference. First operand has 68 places, 90 transitions, 440 flow. Second operand 4 states and 150 transitions. [2025-02-08 14:07:37,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 104 transitions, 641 flow [2025-02-08 14:07:37,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 104 transitions, 546 flow, removed 25 selfloop flow, removed 4 redundant places. [2025-02-08 14:07:37,979 INFO L231 Difference]: Finished difference. Result has 66 places, 89 transitions, 349 flow [2025-02-08 14:07:37,979 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=349, PETRI_PLACES=66, PETRI_TRANSITIONS=89} [2025-02-08 14:07:37,980 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 8 predicate places. [2025-02-08 14:07:37,981 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 89 transitions, 349 flow [2025-02-08 14:07:37,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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) [2025-02-08 14:07:37,981 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:37,981 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:37,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 14:07:37,981 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:07:37,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:37,982 INFO L85 PathProgramCache]: Analyzing trace with hash -264568667, now seen corresponding path program 1 times [2025-02-08 14:07:37,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:37,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292791692] [2025-02-08 14:07:37,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:37,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:37,990 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:07:37,997 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:07:38,001 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:38,002 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:38,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:38,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:38,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292791692] [2025-02-08 14:07:38,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292791692] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:38,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:38,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:07:38,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644399129] [2025-02-08 14:07:38,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:38,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:38,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:38,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:38,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:38,073 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 62 [2025-02-08 14:07:38,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 89 transitions, 349 flow. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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) [2025-02-08 14:07:38,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:38,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 62 [2025-02-08 14:07:38,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:38,391 INFO L124 PetriNetUnfolderBase]: 2658/4142 cut-off events. [2025-02-08 14:07:38,392 INFO L125 PetriNetUnfolderBase]: For 323/323 co-relation queries the response was YES. [2025-02-08 14:07:38,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8233 conditions, 4142 events. 2658/4142 cut-off events. For 323/323 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 24698 event pairs, 613 based on Foata normal form. 86/3804 useless extension candidates. Maximal degree in co-relation 8151. Up to 1896 conditions per place. [2025-02-08 14:07:38,420 INFO L140 encePairwiseOnDemand]: 58/62 looper letters, 104 selfloop transitions, 3 changer transitions 0/126 dead transitions. [2025-02-08 14:07:38,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 126 transitions, 649 flow [2025-02-08 14:07:38,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:38,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:38,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 172 transitions. [2025-02-08 14:07:38,421 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6935483870967742 [2025-02-08 14:07:38,421 INFO L175 Difference]: Start difference. First operand has 66 places, 89 transitions, 349 flow. Second operand 4 states and 172 transitions. [2025-02-08 14:07:38,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 126 transitions, 649 flow [2025-02-08 14:07:38,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 126 transitions, 639 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:07:38,427 INFO L231 Difference]: Finished difference. Result has 68 places, 91 transitions, 363 flow [2025-02-08 14:07:38,428 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=363, PETRI_PLACES=68, PETRI_TRANSITIONS=91} [2025-02-08 14:07:38,429 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 10 predicate places. [2025-02-08 14:07:38,430 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 91 transitions, 363 flow [2025-02-08 14:07:38,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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) [2025-02-08 14:07:38,430 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:38,430 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:38,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 14:07:38,430 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:07:38,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:38,431 INFO L85 PathProgramCache]: Analyzing trace with hash -615376059, now seen corresponding path program 1 times [2025-02-08 14:07:38,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:38,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489215434] [2025-02-08 14:07:38,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:38,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:38,438 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 14:07:38,445 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 14:07:38,445 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:38,445 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:38,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:38,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:38,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489215434] [2025-02-08 14:07:38,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489215434] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:38,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:38,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:07:38,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919942675] [2025-02-08 14:07:38,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:38,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:38,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:38,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:38,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:38,501 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 62 [2025-02-08 14:07:38,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 91 transitions, 363 flow. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 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) [2025-02-08 14:07:38,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:38,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 62 [2025-02-08 14:07:38,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:38,907 INFO L124 PetriNetUnfolderBase]: 4789/7324 cut-off events. [2025-02-08 14:07:38,907 INFO L125 PetriNetUnfolderBase]: For 1054/1143 co-relation queries the response was YES. [2025-02-08 14:07:38,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15014 conditions, 7324 events. 4789/7324 cut-off events. For 1054/1143 co-relation queries the response was YES. Maximal size of possible extension queue 381. Compared 45295 event pairs, 1017 based on Foata normal form. 152/6595 useless extension candidates. Maximal degree in co-relation 14930. Up to 3727 conditions per place. [2025-02-08 14:07:38,944 INFO L140 encePairwiseOnDemand]: 57/62 looper letters, 108 selfloop transitions, 3 changer transitions 0/129 dead transitions. [2025-02-08 14:07:38,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 129 transitions, 690 flow [2025-02-08 14:07:38,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:38,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:38,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 171 transitions. [2025-02-08 14:07:38,946 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6895161290322581 [2025-02-08 14:07:38,947 INFO L175 Difference]: Start difference. First operand has 68 places, 91 transitions, 363 flow. Second operand 4 states and 171 transitions. [2025-02-08 14:07:38,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 129 transitions, 690 flow [2025-02-08 14:07:38,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 129 transitions, 686 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:07:38,950 INFO L231 Difference]: Finished difference. Result has 72 places, 93 transitions, 383 flow [2025-02-08 14:07:38,951 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=383, PETRI_PLACES=72, PETRI_TRANSITIONS=93} [2025-02-08 14:07:38,951 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 14 predicate places. [2025-02-08 14:07:38,951 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 93 transitions, 383 flow [2025-02-08 14:07:38,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 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) [2025-02-08 14:07:38,952 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:38,952 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:38,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 14:07:38,952 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:07:38,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:38,952 INFO L85 PathProgramCache]: Analyzing trace with hash 319890434, now seen corresponding path program 1 times [2025-02-08 14:07:38,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:38,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819463074] [2025-02-08 14:07:38,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:38,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:38,960 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:07:38,966 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:07:38,967 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:38,967 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:39,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:39,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:39,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819463074] [2025-02-08 14:07:39,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819463074] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:39,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:39,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:07:39,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306077227] [2025-02-08 14:07:39,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:39,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:39,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:39,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:39,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:39,050 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 62 [2025-02-08 14:07:39,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 93 transitions, 383 flow. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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) [2025-02-08 14:07:39,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:39,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 62 [2025-02-08 14:07:39,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:39,686 INFO L124 PetriNetUnfolderBase]: 7559/11538 cut-off events. [2025-02-08 14:07:39,686 INFO L125 PetriNetUnfolderBase]: For 3119/3507 co-relation queries the response was YES. [2025-02-08 14:07:39,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25003 conditions, 11538 events. 7559/11538 cut-off events. For 3119/3507 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 74448 event pairs, 1880 based on Foata normal form. 224/10979 useless extension candidates. Maximal degree in co-relation 24917. Up to 5561 conditions per place. [2025-02-08 14:07:39,727 INFO L140 encePairwiseOnDemand]: 57/62 looper letters, 111 selfloop transitions, 3 changer transitions 0/132 dead transitions. [2025-02-08 14:07:39,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 132 transitions, 735 flow [2025-02-08 14:07:39,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:39,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:39,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 168 transitions. [2025-02-08 14:07:39,728 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6774193548387096 [2025-02-08 14:07:39,729 INFO L175 Difference]: Start difference. First operand has 72 places, 93 transitions, 383 flow. Second operand 4 states and 168 transitions. [2025-02-08 14:07:39,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 132 transitions, 735 flow [2025-02-08 14:07:39,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 132 transitions, 731 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:07:39,731 INFO L231 Difference]: Finished difference. Result has 76 places, 95 transitions, 403 flow [2025-02-08 14:07:39,731 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=381, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=403, PETRI_PLACES=76, PETRI_TRANSITIONS=95} [2025-02-08 14:07:39,732 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 18 predicate places. [2025-02-08 14:07:39,732 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 95 transitions, 403 flow [2025-02-08 14:07:39,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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) [2025-02-08 14:07:39,732 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:39,732 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:39,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 14:07:39,732 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:07:39,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:39,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1695212970, now seen corresponding path program 1 times [2025-02-08 14:07:39,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:39,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403191158] [2025-02-08 14:07:39,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:39,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:39,738 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 14:07:39,744 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 14:07:39,744 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:39,744 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:39,819 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-08 14:07:39,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:39,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403191158] [2025-02-08 14:07:39,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403191158] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:39,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:39,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:07:39,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787611103] [2025-02-08 14:07:39,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:39,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:39,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:39,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:39,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:39,824 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 62 [2025-02-08 14:07:39,824 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 95 transitions, 403 flow. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 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) [2025-02-08 14:07:39,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:39,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 62 [2025-02-08 14:07:39,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:40,505 INFO L124 PetriNetUnfolderBase]: 7653/12745 cut-off events. [2025-02-08 14:07:40,505 INFO L125 PetriNetUnfolderBase]: For 4355/4496 co-relation queries the response was YES. [2025-02-08 14:07:40,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28614 conditions, 12745 events. 7653/12745 cut-off events. For 4355/4496 co-relation queries the response was YES. Maximal size of possible extension queue 600. Compared 93790 event pairs, 5344 based on Foata normal form. 193/12837 useless extension candidates. Maximal degree in co-relation 28477. Up to 8724 conditions per place. [2025-02-08 14:07:40,579 INFO L140 encePairwiseOnDemand]: 58/62 looper letters, 125 selfloop transitions, 3 changer transitions 0/148 dead transitions. [2025-02-08 14:07:40,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 148 transitions, 879 flow [2025-02-08 14:07:40,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:40,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:40,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 170 transitions. [2025-02-08 14:07:40,581 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6854838709677419 [2025-02-08 14:07:40,581 INFO L175 Difference]: Start difference. First operand has 76 places, 95 transitions, 403 flow. Second operand 4 states and 170 transitions. [2025-02-08 14:07:40,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 148 transitions, 879 flow [2025-02-08 14:07:40,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 148 transitions, 876 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:07:40,586 INFO L231 Difference]: Finished difference. Result has 79 places, 95 transitions, 410 flow [2025-02-08 14:07:40,586 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=410, PETRI_PLACES=79, PETRI_TRANSITIONS=95} [2025-02-08 14:07:40,587 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 21 predicate places. [2025-02-08 14:07:40,587 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 95 transitions, 410 flow [2025-02-08 14:07:40,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 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) [2025-02-08 14:07:40,587 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:40,587 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:40,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 14:07:40,587 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:07:40,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:40,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1673484960, now seen corresponding path program 1 times [2025-02-08 14:07:40,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:40,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102935679] [2025-02-08 14:07:40,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:40,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:40,597 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 14:07:40,604 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 14:07:40,604 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:40,604 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:40,682 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 14:07:40,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:40,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102935679] [2025-02-08 14:07:40,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102935679] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:40,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:40,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:07:40,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345115651] [2025-02-08 14:07:40,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:40,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:07:40,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:40,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:07:40,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:07:40,691 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 62 [2025-02-08 14:07:40,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 95 transitions, 410 flow. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 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) [2025-02-08 14:07:40,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:40,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 62 [2025-02-08 14:07:40,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:41,588 INFO L124 PetriNetUnfolderBase]: 8569/14246 cut-off events. [2025-02-08 14:07:41,589 INFO L125 PetriNetUnfolderBase]: For 5080/5424 co-relation queries the response was YES. [2025-02-08 14:07:41,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32093 conditions, 14246 events. 8569/14246 cut-off events. For 5080/5424 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 105710 event pairs, 3500 based on Foata normal form. 256/14373 useless extension candidates. Maximal degree in co-relation 31907. Up to 5043 conditions per place. [2025-02-08 14:07:41,670 INFO L140 encePairwiseOnDemand]: 56/62 looper letters, 126 selfloop transitions, 9 changer transitions 0/155 dead transitions. [2025-02-08 14:07:41,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 155 transitions, 896 flow [2025-02-08 14:07:41,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:07:41,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:07:41,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 214 transitions. [2025-02-08 14:07:41,672 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6903225806451613 [2025-02-08 14:07:41,672 INFO L175 Difference]: Start difference. First operand has 79 places, 95 transitions, 410 flow. Second operand 5 states and 214 transitions. [2025-02-08 14:07:41,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 155 transitions, 896 flow [2025-02-08 14:07:41,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 155 transitions, 892 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-02-08 14:07:41,679 INFO L231 Difference]: Finished difference. Result has 83 places, 95 transitions, 427 flow [2025-02-08 14:07:41,680 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=427, PETRI_PLACES=83, PETRI_TRANSITIONS=95} [2025-02-08 14:07:41,681 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 25 predicate places. [2025-02-08 14:07:41,681 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 95 transitions, 427 flow [2025-02-08 14:07:41,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 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) [2025-02-08 14:07:41,681 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:41,682 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2025-02-08 14:07:41,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 14:07:41,682 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:07:41,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:41,682 INFO L85 PathProgramCache]: Analyzing trace with hash -751677803, now seen corresponding path program 2 times [2025-02-08 14:07:41,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:41,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911164987] [2025-02-08 14:07:41,682 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:07:41,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:41,691 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-08 14:07:41,695 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-02-08 14:07:41,695 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:07:41,695 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:41,726 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 14:07:41,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:41,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911164987] [2025-02-08 14:07:41,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911164987] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:07:41,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495580604] [2025-02-08 14:07:41,726 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:07:41,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:41,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:41,730 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) [2025-02-08 14:07:41,731 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 [2025-02-08 14:07:41,781 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-08 14:07:41,789 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-02-08 14:07:41,789 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:07:41,789 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:41,790 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 14:07:41,790 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:07:41,812 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 14:07:41,812 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:07:41,831 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 14:07:41,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495580604] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:07:41,832 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:07:41,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2025-02-08 14:07:41,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470753305] [2025-02-08 14:07:41,832 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:07:41,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:41,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:41,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:41,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:41,847 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 62 [2025-02-08 14:07:41,848 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 95 transitions, 427 flow. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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) [2025-02-08 14:07:41,848 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:41,848 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 62 [2025-02-08 14:07:41,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:42,652 INFO L124 PetriNetUnfolderBase]: 8888/15145 cut-off events. [2025-02-08 14:07:42,653 INFO L125 PetriNetUnfolderBase]: For 6378/6418 co-relation queries the response was YES. [2025-02-08 14:07:42,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34749 conditions, 15145 events. 8888/15145 cut-off events. For 6378/6418 co-relation queries the response was YES. Maximal size of possible extension queue 692. Compared 117601 event pairs, 6217 based on Foata normal form. 1/14900 useless extension candidates. Maximal degree in co-relation 34560. Up to 12261 conditions per place. [2025-02-08 14:07:42,726 INFO L140 encePairwiseOnDemand]: 57/62 looper letters, 61 selfloop transitions, 16 changer transitions 0/94 dead transitions. [2025-02-08 14:07:42,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 94 transitions, 571 flow [2025-02-08 14:07:42,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:42,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:42,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 120 transitions. [2025-02-08 14:07:42,727 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4838709677419355 [2025-02-08 14:07:42,727 INFO L175 Difference]: Start difference. First operand has 83 places, 95 transitions, 427 flow. Second operand 4 states and 120 transitions. [2025-02-08 14:07:42,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 94 transitions, 571 flow [2025-02-08 14:07:42,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 94 transitions, 559 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-02-08 14:07:42,735 INFO L231 Difference]: Finished difference. Result has 83 places, 94 transitions, 437 flow [2025-02-08 14:07:42,736 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=437, PETRI_PLACES=83, PETRI_TRANSITIONS=94} [2025-02-08 14:07:42,736 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 25 predicate places. [2025-02-08 14:07:42,736 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 94 transitions, 437 flow [2025-02-08 14:07:42,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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) [2025-02-08 14:07:42,736 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:42,736 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:42,742 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 14:07:42,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:42,937 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:07:42,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:42,937 INFO L85 PathProgramCache]: Analyzing trace with hash 522612573, now seen corresponding path program 1 times [2025-02-08 14:07:42,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:42,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336185602] [2025-02-08 14:07:42,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:42,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:42,943 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 14:07:42,947 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 14:07:42,947 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:42,948 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:43,024 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 14:07:43,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:43,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336185602] [2025-02-08 14:07:43,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336185602] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:43,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:43,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:07:43,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687589808] [2025-02-08 14:07:43,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:43,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:43,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:43,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:43,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:43,028 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 62 [2025-02-08 14:07:43,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 94 transitions, 437 flow. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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) [2025-02-08 14:07:43,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:43,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 62 [2025-02-08 14:07:43,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:43,820 INFO L124 PetriNetUnfolderBase]: 7713/12883 cut-off events. [2025-02-08 14:07:43,820 INFO L125 PetriNetUnfolderBase]: For 5065/5231 co-relation queries the response was YES. [2025-02-08 14:07:43,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29605 conditions, 12883 events. 7713/12883 cut-off events. For 5065/5231 co-relation queries the response was YES. Maximal size of possible extension queue 583. Compared 94884 event pairs, 5396 based on Foata normal form. 49/12740 useless extension candidates. Maximal degree in co-relation 29417. Up to 10139 conditions per place. [2025-02-08 14:07:43,922 INFO L140 encePairwiseOnDemand]: 58/62 looper letters, 117 selfloop transitions, 3 changer transitions 2/141 dead transitions. [2025-02-08 14:07:43,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 141 transitions, 882 flow [2025-02-08 14:07:43,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:43,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:43,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 166 transitions. [2025-02-08 14:07:43,923 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6693548387096774 [2025-02-08 14:07:43,923 INFO L175 Difference]: Start difference. First operand has 83 places, 94 transitions, 437 flow. Second operand 4 states and 166 transitions. [2025-02-08 14:07:43,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 141 transitions, 882 flow [2025-02-08 14:07:43,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 141 transitions, 830 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 14:07:43,929 INFO L231 Difference]: Finished difference. Result has 83 places, 94 transitions, 401 flow [2025-02-08 14:07:43,929 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=401, PETRI_PLACES=83, PETRI_TRANSITIONS=94} [2025-02-08 14:07:43,930 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 25 predicate places. [2025-02-08 14:07:43,930 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 94 transitions, 401 flow [2025-02-08 14:07:43,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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) [2025-02-08 14:07:43,930 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:43,930 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:43,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 14:07:43,930 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:07:43,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:43,931 INFO L85 PathProgramCache]: Analyzing trace with hash 570495584, now seen corresponding path program 1 times [2025-02-08 14:07:43,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:43,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528131308] [2025-02-08 14:07:43,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:43,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:43,938 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 14:07:43,943 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 14:07:43,943 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:43,943 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:43,998 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 14:07:43,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:43,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528131308] [2025-02-08 14:07:43,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528131308] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:43,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:43,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:07:43,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116024796] [2025-02-08 14:07:43,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:43,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:07:43,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:43,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:07:43,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:07:44,005 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 62 [2025-02-08 14:07:44,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 94 transitions, 401 flow. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 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) [2025-02-08 14:07:44,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:44,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 62 [2025-02-08 14:07:44,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:44,539 INFO L124 PetriNetUnfolderBase]: 6728/10812 cut-off events. [2025-02-08 14:07:44,539 INFO L125 PetriNetUnfolderBase]: For 4647/5099 co-relation queries the response was YES. [2025-02-08 14:07:44,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25516 conditions, 10812 events. 6728/10812 cut-off events. For 4647/5099 co-relation queries the response was YES. Maximal size of possible extension queue 490. Compared 73448 event pairs, 2574 based on Foata normal form. 39/10744 useless extension candidates. Maximal degree in co-relation 25335. Up to 4549 conditions per place. [2025-02-08 14:07:44,586 INFO L140 encePairwiseOnDemand]: 56/62 looper letters, 121 selfloop transitions, 9 changer transitions 1/150 dead transitions. [2025-02-08 14:07:44,586 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 150 transitions, 864 flow [2025-02-08 14:07:44,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:07:44,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:07:44,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 212 transitions. [2025-02-08 14:07:44,587 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6838709677419355 [2025-02-08 14:07:44,587 INFO L175 Difference]: Start difference. First operand has 83 places, 94 transitions, 401 flow. Second operand 5 states and 212 transitions. [2025-02-08 14:07:44,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 150 transitions, 864 flow [2025-02-08 14:07:44,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 150 transitions, 859 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:07:44,592 INFO L231 Difference]: Finished difference. Result has 86 places, 94 transitions, 417 flow [2025-02-08 14:07:44,592 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=417, PETRI_PLACES=86, PETRI_TRANSITIONS=94} [2025-02-08 14:07:44,592 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 28 predicate places. [2025-02-08 14:07:44,592 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 94 transitions, 417 flow [2025-02-08 14:07:44,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 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) [2025-02-08 14:07:44,592 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:44,592 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1] [2025-02-08 14:07:44,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-08 14:07:44,592 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:07:44,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:44,593 INFO L85 PathProgramCache]: Analyzing trace with hash 712706576, now seen corresponding path program 1 times [2025-02-08 14:07:44,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:44,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99726201] [2025-02-08 14:07:44,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:44,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:44,602 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 14:07:44,610 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 14:07:44,610 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:44,610 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:44,716 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:44,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:44,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99726201] [2025-02-08 14:07:44,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99726201] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:07:44,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891580867] [2025-02-08 14:07:44,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:44,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:44,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:44,718 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) [2025-02-08 14:07:44,719 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 [2025-02-08 14:07:44,764 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 14:07:44,778 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 14:07:44,778 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:44,778 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:44,779 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 14:07:44,780 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:07:44,814 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:44,815 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:07:44,924 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:44,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891580867] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:07:44,925 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:07:44,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2025-02-08 14:07:44,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22496336] [2025-02-08 14:07:44,925 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:07:44,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-02-08 14:07:44,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:44,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-02-08 14:07:44,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2025-02-08 14:07:44,989 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 62 [2025-02-08 14:07:44,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 94 transitions, 417 flow. Second operand has 24 states, 24 states have (on average 22.083333333333332) internal successors, (530), 24 states have internal predecessors, (530), 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) [2025-02-08 14:07:44,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:44,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 62 [2025-02-08 14:07:44,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:45,852 INFO L124 PetriNetUnfolderBase]: 6970/11928 cut-off events. [2025-02-08 14:07:45,852 INFO L125 PetriNetUnfolderBase]: For 6602/6648 co-relation queries the response was YES. [2025-02-08 14:07:45,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28406 conditions, 11928 events. 6970/11928 cut-off events. For 6602/6648 co-relation queries the response was YES. Maximal size of possible extension queue 524. Compared 89006 event pairs, 4814 based on Foata normal form. 36/11722 useless extension candidates. Maximal degree in co-relation 27743. Up to 9444 conditions per place. [2025-02-08 14:07:45,930 INFO L140 encePairwiseOnDemand]: 50/62 looper letters, 40 selfloop transitions, 91 changer transitions 0/148 dead transitions. [2025-02-08 14:07:45,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 148 transitions, 949 flow [2025-02-08 14:07:45,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-02-08 14:07:45,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2025-02-08 14:07:45,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 599 transitions. [2025-02-08 14:07:45,932 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43914956011730205 [2025-02-08 14:07:45,932 INFO L175 Difference]: Start difference. First operand has 86 places, 94 transitions, 417 flow. Second operand 22 states and 599 transitions. [2025-02-08 14:07:45,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 148 transitions, 949 flow [2025-02-08 14:07:45,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 148 transitions, 920 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:07:45,940 INFO L231 Difference]: Finished difference. Result has 110 places, 148 transitions, 914 flow [2025-02-08 14:07:45,940 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=914, PETRI_PLACES=110, PETRI_TRANSITIONS=148} [2025-02-08 14:07:45,941 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 52 predicate places. [2025-02-08 14:07:45,941 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 148 transitions, 914 flow [2025-02-08 14:07:45,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 22.083333333333332) internal successors, (530), 24 states have internal predecessors, (530), 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) [2025-02-08 14:07:45,941 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:45,941 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:45,947 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 [2025-02-08 14:07:46,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:46,145 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:07:46,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:46,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1272818103, now seen corresponding path program 1 times [2025-02-08 14:07:46,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:46,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225229367] [2025-02-08 14:07:46,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:46,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:46,151 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 14:07:46,160 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 14:07:46,160 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:46,160 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:46,229 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-08 14:07:46,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:46,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225229367] [2025-02-08 14:07:46,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225229367] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:46,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:46,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:07:46,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546753477] [2025-02-08 14:07:46,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:46,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:07:46,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:46,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:07:46,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:07:46,236 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 62 [2025-02-08 14:07:46,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 148 transitions, 914 flow. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:07:46,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:46,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 62 [2025-02-08 14:07:46,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:47,003 INFO L124 PetriNetUnfolderBase]: 7954/13502 cut-off events. [2025-02-08 14:07:47,004 INFO L125 PetriNetUnfolderBase]: For 6929/7223 co-relation queries the response was YES. [2025-02-08 14:07:47,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32192 conditions, 13502 events. 7954/13502 cut-off events. For 6929/7223 co-relation queries the response was YES. Maximal size of possible extension queue 591. Compared 101537 event pairs, 3402 based on Foata normal form. 220/13566 useless extension candidates. Maximal degree in co-relation 31926. Up to 4822 conditions per place. [2025-02-08 14:07:47,079 INFO L140 encePairwiseOnDemand]: 56/62 looper letters, 159 selfloop transitions, 15 changer transitions 0/193 dead transitions. [2025-02-08 14:07:47,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 193 transitions, 1416 flow [2025-02-08 14:07:47,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:07:47,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:07:47,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 211 transitions. [2025-02-08 14:07:47,080 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6806451612903226 [2025-02-08 14:07:47,080 INFO L175 Difference]: Start difference. First operand has 110 places, 148 transitions, 914 flow. Second operand 5 states and 211 transitions. [2025-02-08 14:07:47,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 193 transitions, 1416 flow [2025-02-08 14:07:47,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 193 transitions, 1184 flow, removed 67 selfloop flow, removed 9 redundant places. [2025-02-08 14:07:47,090 INFO L231 Difference]: Finished difference. Result has 106 places, 148 transitions, 715 flow [2025-02-08 14:07:47,090 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=715, PETRI_PLACES=106, PETRI_TRANSITIONS=148} [2025-02-08 14:07:47,090 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 48 predicate places. [2025-02-08 14:07:47,090 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 148 transitions, 715 flow [2025-02-08 14:07:47,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:07:47,091 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:47,091 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:47,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-08 14:07:47,091 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:07:47,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:47,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1534597315, now seen corresponding path program 1 times [2025-02-08 14:07:47,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:47,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384635091] [2025-02-08 14:07:47,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:47,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:47,097 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 14:07:47,104 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 14:07:47,104 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:47,104 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:47,197 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:07:47,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:47,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384635091] [2025-02-08 14:07:47,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384635091] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:07:47,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222475049] [2025-02-08 14:07:47,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:47,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:47,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:47,202 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) [2025-02-08 14:07:47,203 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 [2025-02-08 14:07:47,252 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 14:07:47,272 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 14:07:47,273 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:47,273 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:47,274 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-08 14:07:47,275 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:07:47,393 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:07:47,393 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:07:47,493 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:07:47,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222475049] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:07:47,494 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:07:47,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2025-02-08 14:07:47,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425350128] [2025-02-08 14:07:47,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:07:47,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-02-08 14:07:47,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:47,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-02-08 14:07:47,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2025-02-08 14:07:47,738 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 62 [2025-02-08 14:07:47,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 148 transitions, 715 flow. Second operand has 21 states, 21 states have (on average 20.952380952380953) internal successors, (440), 21 states have internal predecessors, (440), 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) [2025-02-08 14:07:47,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:47,739 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 62 [2025-02-08 14:07:47,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:51,369 INFO L124 PetriNetUnfolderBase]: 25208/41487 cut-off events. [2025-02-08 14:07:51,369 INFO L125 PetriNetUnfolderBase]: For 25688/26958 co-relation queries the response was YES. [2025-02-08 14:07:51,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100312 conditions, 41487 events. 25208/41487 cut-off events. For 25688/26958 co-relation queries the response was YES. Maximal size of possible extension queue 1739. Compared 357780 event pairs, 9581 based on Foata normal form. 804/41760 useless extension candidates. Maximal degree in co-relation 99892. Up to 6032 conditions per place. [2025-02-08 14:07:51,672 INFO L140 encePairwiseOnDemand]: 49/62 looper letters, 519 selfloop transitions, 230 changer transitions 30/795 dead transitions. [2025-02-08 14:07:51,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 795 transitions, 5186 flow [2025-02-08 14:07:51,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2025-02-08 14:07:51,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2025-02-08 14:07:51,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 1280 transitions. [2025-02-08 14:07:51,675 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43925875085792726 [2025-02-08 14:07:51,676 INFO L175 Difference]: Start difference. First operand has 106 places, 148 transitions, 715 flow. Second operand 47 states and 1280 transitions. [2025-02-08 14:07:51,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 795 transitions, 5186 flow [2025-02-08 14:07:51,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 795 transitions, 5116 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:07:51,710 INFO L231 Difference]: Finished difference. Result has 159 places, 366 transitions, 2567 flow [2025-02-08 14:07:51,710 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=699, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=47, PETRI_FLOW=2567, PETRI_PLACES=159, PETRI_TRANSITIONS=366} [2025-02-08 14:07:51,711 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 101 predicate places. [2025-02-08 14:07:51,711 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 366 transitions, 2567 flow [2025-02-08 14:07:51,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 20.952380952380953) internal successors, (440), 21 states have internal predecessors, (440), 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) [2025-02-08 14:07:51,711 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:51,711 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:51,717 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-08 14:07:51,916 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,SelfDestructingSolverStorable14 [2025-02-08 14:07:51,916 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:07:51,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:51,916 INFO L85 PathProgramCache]: Analyzing trace with hash -893157657, now seen corresponding path program 1 times [2025-02-08 14:07:51,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:51,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345530640] [2025-02-08 14:07:51,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:51,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:51,923 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 14:07:51,931 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 14:07:51,931 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:51,931 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:52,126 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-08 14:07:52,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:52,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345530640] [2025-02-08 14:07:52,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345530640] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:52,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:52,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:07:52,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637715841] [2025-02-08 14:07:52,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:52,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:07:52,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:52,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:07:52,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:07:52,133 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 62 [2025-02-08 14:07:52,134 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 366 transitions, 2567 flow. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:07:52,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:52,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 62 [2025-02-08 14:07:52,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:54,608 INFO L124 PetriNetUnfolderBase]: 21018/35361 cut-off events. [2025-02-08 14:07:54,609 INFO L125 PetriNetUnfolderBase]: For 38848/39630 co-relation queries the response was YES. [2025-02-08 14:07:54,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90347 conditions, 35361 events. 21018/35361 cut-off events. For 38848/39630 co-relation queries the response was YES. Maximal size of possible extension queue 1539. Compared 303793 event pairs, 8851 based on Foata normal form. 134/35136 useless extension candidates. Maximal degree in co-relation 89864. Up to 15709 conditions per place. [2025-02-08 14:07:54,922 INFO L140 encePairwiseOnDemand]: 56/62 looper letters, 355 selfloop transitions, 27 changer transitions 14/415 dead transitions. [2025-02-08 14:07:54,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 415 transitions, 3597 flow [2025-02-08 14:07:54,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:07:54,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:07:54,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 205 transitions. [2025-02-08 14:07:54,923 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6612903225806451 [2025-02-08 14:07:54,923 INFO L175 Difference]: Start difference. First operand has 159 places, 366 transitions, 2567 flow. Second operand 5 states and 205 transitions. [2025-02-08 14:07:54,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 415 transitions, 3597 flow [2025-02-08 14:07:54,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 415 transitions, 3573 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:07:54,975 INFO L231 Difference]: Finished difference. Result has 161 places, 361 transitions, 2557 flow [2025-02-08 14:07:54,975 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=2545, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2557, PETRI_PLACES=161, PETRI_TRANSITIONS=361} [2025-02-08 14:07:54,976 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 103 predicate places. [2025-02-08 14:07:54,976 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 361 transitions, 2557 flow [2025-02-08 14:07:54,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:07:54,976 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:54,976 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:54,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-08 14:07:54,976 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:07:54,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:54,977 INFO L85 PathProgramCache]: Analyzing trace with hash 258962262, now seen corresponding path program 1 times [2025-02-08 14:07:54,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:54,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944492020] [2025-02-08 14:07:54,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:54,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:54,983 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 14:07:54,988 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 14:07:54,988 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:54,988 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:55,032 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 14:07:55,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:55,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944492020] [2025-02-08 14:07:55,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944492020] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:07:55,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045480825] [2025-02-08 14:07:55,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:55,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:55,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:55,034 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) [2025-02-08 14:07:55,036 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 [2025-02-08 14:07:55,081 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 14:07:55,097 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 14:07:55,098 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:55,098 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:55,099 INFO L256 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-08 14:07:55,100 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:07:55,202 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:07:55,202 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:07:55,292 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:07:55,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045480825] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:07:55,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:07:55,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 8, 8] total 18 [2025-02-08 14:07:55,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199501375] [2025-02-08 14:07:55,292 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:07:55,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-02-08 14:07:55,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:55,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-02-08 14:07:55,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2025-02-08 14:07:55,442 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 62 [2025-02-08 14:07:55,443 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 361 transitions, 2557 flow. Second operand has 19 states, 19 states have (on average 21.36842105263158) internal successors, (406), 19 states have internal predecessors, (406), 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) [2025-02-08 14:07:55,443 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:55,443 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 62 [2025-02-08 14:07:55,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:00,423 INFO L124 PetriNetUnfolderBase]: 36468/58694 cut-off events. [2025-02-08 14:08:00,424 INFO L125 PetriNetUnfolderBase]: For 74889/76270 co-relation queries the response was YES. [2025-02-08 14:08:00,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154156 conditions, 58694 events. 36468/58694 cut-off events. For 74889/76270 co-relation queries the response was YES. Maximal size of possible extension queue 2468. Compared 514433 event pairs, 11815 based on Foata normal form. 1580/59005 useless extension candidates. Maximal degree in co-relation 153658. Up to 11459 conditions per place. [2025-02-08 14:08:01,171 INFO L140 encePairwiseOnDemand]: 49/62 looper letters, 234 selfloop transitions, 284 changer transitions 3/536 dead transitions. [2025-02-08 14:08:01,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 536 transitions, 4452 flow [2025-02-08 14:08:01,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-08 14:08:01,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-02-08 14:08:01,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 426 transitions. [2025-02-08 14:08:01,173 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49078341013824883 [2025-02-08 14:08:01,173 INFO L175 Difference]: Start difference. First operand has 161 places, 361 transitions, 2557 flow. Second operand 14 states and 426 transitions. [2025-02-08 14:08:01,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 536 transitions, 4452 flow [2025-02-08 14:08:01,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 536 transitions, 4387 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:08:01,337 INFO L231 Difference]: Finished difference. Result has 171 places, 362 transitions, 3081 flow [2025-02-08 14:08:01,338 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=2500, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=282, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3081, PETRI_PLACES=171, PETRI_TRANSITIONS=362} [2025-02-08 14:08:01,338 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 113 predicate places. [2025-02-08 14:08:01,338 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 362 transitions, 3081 flow [2025-02-08 14:08:01,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 21.36842105263158) internal successors, (406), 19 states have internal predecessors, (406), 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) [2025-02-08 14:08:01,339 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:01,339 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:01,525 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-08 14:08:01,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-02-08 14:08:01,539 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:08:01,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:01,540 INFO L85 PathProgramCache]: Analyzing trace with hash 147584896, now seen corresponding path program 1 times [2025-02-08 14:08:01,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:01,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260734396] [2025-02-08 14:08:01,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:01,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:01,547 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-08 14:08:01,553 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 14:08:01,553 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:01,553 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:01,610 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 14:08:01,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:01,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260734396] [2025-02-08 14:08:01,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260734396] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:08:01,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009064204] [2025-02-08 14:08:01,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:01,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:08:01,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:08:01,612 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) [2025-02-08 14:08:01,614 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 [2025-02-08 14:08:01,663 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-08 14:08:01,680 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 14:08:01,680 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:01,680 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:01,681 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-08 14:08:01,682 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:08:01,782 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:08:01,783 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:08:01,872 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:08:01,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009064204] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:08:01,872 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:08:01,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 17 [2025-02-08 14:08:01,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926160674] [2025-02-08 14:08:01,872 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:08:01,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-08 14:08:01,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:01,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-08 14:08:01,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2025-02-08 14:08:02,027 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 62 [2025-02-08 14:08:02,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 362 transitions, 3081 flow. Second operand has 18 states, 18 states have (on average 22.055555555555557) internal successors, (397), 18 states have internal predecessors, (397), 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) [2025-02-08 14:08:02,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:02,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 62 [2025-02-08 14:08:02,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:05,847 INFO L124 PetriNetUnfolderBase]: 31410/50440 cut-off events. [2025-02-08 14:08:05,847 INFO L125 PetriNetUnfolderBase]: For 81012/81488 co-relation queries the response was YES. [2025-02-08 14:08:06,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138150 conditions, 50440 events. 31410/50440 cut-off events. For 81012/81488 co-relation queries the response was YES. Maximal size of possible extension queue 2093. Compared 431716 event pairs, 11309 based on Foata normal form. 1266/50541 useless extension candidates. Maximal degree in co-relation 137599. Up to 11333 conditions per place. [2025-02-08 14:08:06,381 INFO L140 encePairwiseOnDemand]: 48/62 looper letters, 396 selfloop transitions, 140 changer transitions 21/571 dead transitions. [2025-02-08 14:08:06,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 571 transitions, 5430 flow [2025-02-08 14:08:06,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-08 14:08:06,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-02-08 14:08:06,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 503 transitions. [2025-02-08 14:08:06,545 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47722960151802657 [2025-02-08 14:08:06,546 INFO L175 Difference]: Start difference. First operand has 171 places, 362 transitions, 3081 flow. Second operand 17 states and 503 transitions. [2025-02-08 14:08:06,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 571 transitions, 5430 flow [2025-02-08 14:08:06,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 571 transitions, 5223 flow, removed 8 selfloop flow, removed 7 redundant places. [2025-02-08 14:08:06,675 INFO L231 Difference]: Finished difference. Result has 182 places, 371 transitions, 3347 flow [2025-02-08 14:08:06,675 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=2976, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3347, PETRI_PLACES=182, PETRI_TRANSITIONS=371} [2025-02-08 14:08:06,675 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 124 predicate places. [2025-02-08 14:08:06,675 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 371 transitions, 3347 flow [2025-02-08 14:08:06,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 22.055555555555557) internal successors, (397), 18 states have internal predecessors, (397), 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) [2025-02-08 14:08:06,676 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:06,676 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:06,681 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-02-08 14:08:06,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-02-08 14:08:06,876 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:08:06,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:06,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1966810118, now seen corresponding path program 1 times [2025-02-08 14:08:06,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:06,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756504584] [2025-02-08 14:08:06,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:06,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:06,884 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-08 14:08:06,892 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-08 14:08:06,892 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:06,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:06,954 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-02-08 14:08:06,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:06,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756504584] [2025-02-08 14:08:06,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756504584] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:08:06,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949067007] [2025-02-08 14:08:06,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:06,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:08:06,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:08:06,959 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:08:06,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-08 14:08:07,015 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-08 14:08:07,034 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-08 14:08:07,035 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:07,035 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:07,036 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-08 14:08:07,037 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:08:07,153 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 14:08:07,153 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:08:07,253 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 14:08:07,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949067007] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:08:07,253 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:08:07,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 8, 8] total 18 [2025-02-08 14:08:07,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865556087] [2025-02-08 14:08:07,253 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:08:07,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-02-08 14:08:07,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:07,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-02-08 14:08:07,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2025-02-08 14:08:07,396 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 62 [2025-02-08 14:08:07,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 371 transitions, 3347 flow. Second operand has 19 states, 19 states have (on average 21.526315789473685) internal successors, (409), 19 states have internal predecessors, (409), 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) [2025-02-08 14:08:07,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:07,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 62 [2025-02-08 14:08:07,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:11,621 INFO L124 PetriNetUnfolderBase]: 32266/51732 cut-off events. [2025-02-08 14:08:11,621 INFO L125 PetriNetUnfolderBase]: For 92562/93212 co-relation queries the response was YES. [2025-02-08 14:08:12,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144607 conditions, 51732 events. 32266/51732 cut-off events. For 92562/93212 co-relation queries the response was YES. Maximal size of possible extension queue 1936. Compared 436121 event pairs, 10079 based on Foata normal form. 694/52036 useless extension candidates. Maximal degree in co-relation 144037. Up to 10515 conditions per place. [2025-02-08 14:08:12,174 INFO L140 encePairwiseOnDemand]: 48/62 looper letters, 373 selfloop transitions, 171 changer transitions 20/578 dead transitions. [2025-02-08 14:08:12,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 578 transitions, 5541 flow [2025-02-08 14:08:12,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-08 14:08:12,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-02-08 14:08:12,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 516 transitions. [2025-02-08 14:08:12,176 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48956356736242884 [2025-02-08 14:08:12,176 INFO L175 Difference]: Start difference. First operand has 182 places, 371 transitions, 3347 flow. Second operand 17 states and 516 transitions. [2025-02-08 14:08:12,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 578 transitions, 5541 flow [2025-02-08 14:08:12,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 578 transitions, 5328 flow, removed 11 selfloop flow, removed 9 redundant places. [2025-02-08 14:08:12,337 INFO L231 Difference]: Finished difference. Result has 192 places, 375 transitions, 3589 flow [2025-02-08 14:08:12,337 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=3216, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=165, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3589, PETRI_PLACES=192, PETRI_TRANSITIONS=375} [2025-02-08 14:08:12,337 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 134 predicate places. [2025-02-08 14:08:12,338 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 375 transitions, 3589 flow [2025-02-08 14:08:12,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 21.526315789473685) internal successors, (409), 19 states have internal predecessors, (409), 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) [2025-02-08 14:08:12,338 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:12,338 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:12,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-02-08 14:08:12,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:08:12,538 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:08:12,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:12,539 INFO L85 PathProgramCache]: Analyzing trace with hash -260650678, now seen corresponding path program 2 times [2025-02-08 14:08:12,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:12,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065774809] [2025-02-08 14:08:12,539 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:08:12,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:12,547 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 2 equivalence classes. [2025-02-08 14:08:12,552 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 10 of 26 statements. [2025-02-08 14:08:12,556 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:08:12,557 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:12,584 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-08 14:08:12,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:12,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065774809] [2025-02-08 14:08:12,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065774809] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:08:12,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832816199] [2025-02-08 14:08:12,585 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:08:12,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:08:12,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:08:12,587 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:08:12,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-08 14:08:12,639 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 2 equivalence classes. [2025-02-08 14:08:12,651 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 10 of 26 statements. [2025-02-08 14:08:12,652 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:08:12,652 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:12,652 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 14:08:12,653 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:08:12,677 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-08 14:08:12,677 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:08:12,701 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-08 14:08:12,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832816199] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:08:12,701 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:08:12,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2025-02-08 14:08:12,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297687224] [2025-02-08 14:08:12,701 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:08:12,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:08:12,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:12,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:08:12,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:08:12,712 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 62 [2025-02-08 14:08:12,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 375 transitions, 3589 flow. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2025-02-08 14:08:12,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:12,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 62 [2025-02-08 14:08:12,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:17,334 INFO L124 PetriNetUnfolderBase]: 32050/52030 cut-off events. [2025-02-08 14:08:17,334 INFO L125 PetriNetUnfolderBase]: For 103774/104330 co-relation queries the response was YES. [2025-02-08 14:08:17,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148003 conditions, 52030 events. 32050/52030 cut-off events. For 103774/104330 co-relation queries the response was YES. Maximal size of possible extension queue 1845. Compared 444446 event pairs, 14937 based on Foata normal form. 0/51405 useless extension candidates. Maximal degree in co-relation 147425. Up to 28065 conditions per place. [2025-02-08 14:08:17,819 INFO L140 encePairwiseOnDemand]: 57/62 looper letters, 409 selfloop transitions, 10 changer transitions 1/436 dead transitions. [2025-02-08 14:08:17,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 436 transitions, 4771 flow [2025-02-08 14:08:17,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:08:17,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:08:17,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 193 transitions. [2025-02-08 14:08:17,820 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6225806451612903 [2025-02-08 14:08:17,820 INFO L175 Difference]: Start difference. First operand has 192 places, 375 transitions, 3589 flow. Second operand 5 states and 193 transitions. [2025-02-08 14:08:17,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 436 transitions, 4771 flow [2025-02-08 14:08:18,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 436 transitions, 4713 flow, removed 5 selfloop flow, removed 7 redundant places. [2025-02-08 14:08:18,103 INFO L231 Difference]: Finished difference. Result has 187 places, 374 transitions, 3561 flow [2025-02-08 14:08:18,103 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=3535, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=374, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3561, PETRI_PLACES=187, PETRI_TRANSITIONS=374} [2025-02-08 14:08:18,104 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 129 predicate places. [2025-02-08 14:08:18,104 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 374 transitions, 3561 flow [2025-02-08 14:08:18,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2025-02-08 14:08:18,104 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:18,104 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:18,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-02-08 14:08:18,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:08:18,305 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:08:18,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:18,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1149682639, now seen corresponding path program 1 times [2025-02-08 14:08:18,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:18,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221653010] [2025-02-08 14:08:18,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:18,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:18,313 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-02-08 14:08:18,319 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-02-08 14:08:18,319 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:18,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:18,384 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-02-08 14:08:18,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:18,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221653010] [2025-02-08 14:08:18,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221653010] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:08:18,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213812288] [2025-02-08 14:08:18,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:18,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:08:18,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:08:18,387 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:08:18,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-08 14:08:18,443 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-02-08 14:08:18,464 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-02-08 14:08:18,464 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:18,464 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:18,466 INFO L256 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-08 14:08:18,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:08:18,581 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 14:08:18,582 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:08:18,691 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 14:08:18,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213812288] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:08:18,692 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:08:18,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 8, 8] total 18 [2025-02-08 14:08:18,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117004117] [2025-02-08 14:08:18,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:08:18,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-02-08 14:08:18,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:18,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-02-08 14:08:18,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2025-02-08 14:08:18,833 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 62 [2025-02-08 14:08:18,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 374 transitions, 3561 flow. Second operand has 19 states, 19 states have (on average 21.68421052631579) internal successors, (412), 19 states have internal predecessors, (412), 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) [2025-02-08 14:08:18,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:18,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 62 [2025-02-08 14:08:18,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:23,898 INFO L124 PetriNetUnfolderBase]: 36125/57513 cut-off events. [2025-02-08 14:08:23,898 INFO L125 PetriNetUnfolderBase]: For 134994/135771 co-relation queries the response was YES. [2025-02-08 14:08:24,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168130 conditions, 57513 events. 36125/57513 cut-off events. For 134994/135771 co-relation queries the response was YES. Maximal size of possible extension queue 1697. Compared 475491 event pairs, 11831 based on Foata normal form. 819/57849 useless extension candidates. Maximal degree in co-relation 167541. Up to 14360 conditions per place. [2025-02-08 14:08:24,469 INFO L140 encePairwiseOnDemand]: 49/62 looper letters, 174 selfloop transitions, 289 changer transitions 81/557 dead transitions. [2025-02-08 14:08:24,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 557 transitions, 5849 flow [2025-02-08 14:08:24,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 14:08:24,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-08 14:08:24,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 402 transitions. [2025-02-08 14:08:24,470 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4987593052109181 [2025-02-08 14:08:24,470 INFO L175 Difference]: Start difference. First operand has 187 places, 374 transitions, 3561 flow. Second operand 13 states and 402 transitions. [2025-02-08 14:08:24,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 557 transitions, 5849 flow [2025-02-08 14:08:24,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 557 transitions, 5661 flow, removed 44 selfloop flow, removed 5 redundant places. [2025-02-08 14:08:24,730 INFO L231 Difference]: Finished difference. Result has 194 places, 370 transitions, 4080 flow [2025-02-08 14:08:24,730 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=3534, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=374, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=287, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4080, PETRI_PLACES=194, PETRI_TRANSITIONS=370} [2025-02-08 14:08:24,731 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 136 predicate places. [2025-02-08 14:08:24,731 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 370 transitions, 4080 flow [2025-02-08 14:08:24,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 21.68421052631579) internal successors, (412), 19 states have internal predecessors, (412), 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) [2025-02-08 14:08:24,731 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:24,731 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:24,737 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-08 14:08:24,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:08:24,931 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:08:24,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:24,932 INFO L85 PathProgramCache]: Analyzing trace with hash -905946154, now seen corresponding path program 2 times [2025-02-08 14:08:24,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:24,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488881414] [2025-02-08 14:08:24,932 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:08:24,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:24,939 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 32 statements into 2 equivalence classes. [2025-02-08 14:08:24,943 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 12 of 32 statements. [2025-02-08 14:08:24,943 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:08:24,943 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:24,979 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-02-08 14:08:24,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:24,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488881414] [2025-02-08 14:08:24,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488881414] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:08:24,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654206181] [2025-02-08 14:08:24,980 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:08:24,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:08:24,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:08:24,983 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:08:24,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-08 14:08:25,041 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 32 statements into 2 equivalence classes. [2025-02-08 14:08:25,056 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 12 of 32 statements. [2025-02-08 14:08:25,056 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:08:25,056 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:25,057 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 14:08:25,058 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:08:25,105 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-02-08 14:08:25,105 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:08:25,142 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-02-08 14:08:25,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654206181] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:08:25,142 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:08:25,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2025-02-08 14:08:25,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756026104] [2025-02-08 14:08:25,143 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:08:25,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:08:25,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:25,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:08:25,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:08:25,162 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 62 [2025-02-08 14:08:25,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 370 transitions, 4080 flow. Second operand has 6 states, 6 states have (on average 30.333333333333332) internal successors, (182), 6 states have internal predecessors, (182), 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) [2025-02-08 14:08:25,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:25,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 62 [2025-02-08 14:08:25,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:29,171 INFO L124 PetriNetUnfolderBase]: 29983/48242 cut-off events. [2025-02-08 14:08:29,171 INFO L125 PetriNetUnfolderBase]: For 91676/91956 co-relation queries the response was YES. [2025-02-08 14:08:29,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139089 conditions, 48242 events. 29983/48242 cut-off events. For 91676/91956 co-relation queries the response was YES. Maximal size of possible extension queue 1490. Compared 395006 event pairs, 13600 based on Foata normal form. 537/48439 useless extension candidates. Maximal degree in co-relation 138456. Up to 24262 conditions per place. [2025-02-08 14:08:29,690 INFO L140 encePairwiseOnDemand]: 57/62 looper letters, 386 selfloop transitions, 10 changer transitions 15/426 dead transitions. [2025-02-08 14:08:29,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 426 transitions, 5239 flow [2025-02-08 14:08:29,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:08:29,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:08:29,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 190 transitions. [2025-02-08 14:08:29,691 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6129032258064516 [2025-02-08 14:08:29,691 INFO L175 Difference]: Start difference. First operand has 194 places, 370 transitions, 4080 flow. Second operand 5 states and 190 transitions. [2025-02-08 14:08:29,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 426 transitions, 5239 flow [2025-02-08 14:08:30,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 426 transitions, 4884 flow, removed 9 selfloop flow, removed 13 redundant places. [2025-02-08 14:08:30,012 INFO L231 Difference]: Finished difference. Result has 179 places, 365 transitions, 3739 flow [2025-02-08 14:08:30,013 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=3739, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3739, PETRI_PLACES=179, PETRI_TRANSITIONS=365} [2025-02-08 14:08:30,013 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 121 predicate places. [2025-02-08 14:08:30,013 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 365 transitions, 3739 flow [2025-02-08 14:08:30,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.333333333333332) internal successors, (182), 6 states have internal predecessors, (182), 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) [2025-02-08 14:08:30,013 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:30,013 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:30,019 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-02-08 14:08:30,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:08:30,214 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:08:30,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:30,214 INFO L85 PathProgramCache]: Analyzing trace with hash -2129653853, now seen corresponding path program 2 times [2025-02-08 14:08:30,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:30,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871605937] [2025-02-08 14:08:30,214 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:08:30,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:30,220 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 34 statements into 2 equivalence classes. [2025-02-08 14:08:30,223 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 14 of 34 statements. [2025-02-08 14:08:30,223 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:08:30,223 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:30,248 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-02-08 14:08:30,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:30,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871605937] [2025-02-08 14:08:30,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871605937] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:08:30,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245323251] [2025-02-08 14:08:30,248 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:08:30,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:08:30,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:08:30,250 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:08:30,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-08 14:08:30,305 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 34 statements into 2 equivalence classes. [2025-02-08 14:08:30,320 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 14 of 34 statements. [2025-02-08 14:08:30,321 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:08:30,321 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:30,322 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 14:08:30,323 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:08:30,354 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-02-08 14:08:30,355 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:08:30,385 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-02-08 14:08:30,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245323251] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:08:30,386 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:08:30,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2025-02-08 14:08:30,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837178893] [2025-02-08 14:08:30,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:08:30,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:08:30,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:30,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:08:30,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:08:30,400 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 62 [2025-02-08 14:08:30,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 365 transitions, 3739 flow. Second operand has 6 states, 6 states have (on average 31.0) internal successors, (186), 6 states have internal predecessors, (186), 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) [2025-02-08 14:08:30,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:30,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 62 [2025-02-08 14:08:30,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:33,344 INFO L124 PetriNetUnfolderBase]: 20044/33362 cut-off events. [2025-02-08 14:08:33,344 INFO L125 PetriNetUnfolderBase]: For 67130/67130 co-relation queries the response was YES. [2025-02-08 14:08:33,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97900 conditions, 33362 events. 20044/33362 cut-off events. For 67130/67130 co-relation queries the response was YES. Maximal size of possible extension queue 992. Compared 267855 event pairs, 10786 based on Foata normal form. 567/33783 useless extension candidates. Maximal degree in co-relation 97301. Up to 18353 conditions per place. [2025-02-08 14:08:33,666 INFO L140 encePairwiseOnDemand]: 57/62 looper letters, 302 selfloop transitions, 1 changer transitions 107/415 dead transitions. [2025-02-08 14:08:33,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 415 transitions, 4861 flow [2025-02-08 14:08:33,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:08:33,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:08:33,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 185 transitions. [2025-02-08 14:08:33,669 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5967741935483871 [2025-02-08 14:08:33,669 INFO L175 Difference]: Start difference. First operand has 179 places, 365 transitions, 3739 flow. Second operand 5 states and 185 transitions. [2025-02-08 14:08:33,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 415 transitions, 4861 flow [2025-02-08 14:08:33,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 415 transitions, 4794 flow, removed 12 selfloop flow, removed 6 redundant places. [2025-02-08 14:08:33,864 INFO L231 Difference]: Finished difference. Result has 171 places, 308 transitions, 3456 flow [2025-02-08 14:08:33,864 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=3706, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=363, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3456, PETRI_PLACES=171, PETRI_TRANSITIONS=308} [2025-02-08 14:08:33,864 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 113 predicate places. [2025-02-08 14:08:33,864 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 308 transitions, 3456 flow [2025-02-08 14:08:33,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.0) internal successors, (186), 6 states have internal predecessors, (186), 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) [2025-02-08 14:08:33,865 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:33,865 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 1, 1, 1] [2025-02-08 14:08:33,870 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-02-08 14:08:34,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2025-02-08 14:08:34,065 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:08:34,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:34,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1253742608, now seen corresponding path program 2 times [2025-02-08 14:08:34,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:34,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032466190] [2025-02-08 14:08:34,066 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:08:34,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:34,073 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 35 statements into 2 equivalence classes. [2025-02-08 14:08:34,074 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 5 of 35 statements. [2025-02-08 14:08:34,074 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:08:34,074 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:34,094 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-08 14:08:34,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:34,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032466190] [2025-02-08 14:08:34,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032466190] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:08:34,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525843682] [2025-02-08 14:08:34,095 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:08:34,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:08:34,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:08:34,097 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:08:34,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-08 14:08:34,156 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 35 statements into 2 equivalence classes. [2025-02-08 14:08:34,164 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 5 of 35 statements. [2025-02-08 14:08:34,164 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:08:34,164 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:34,165 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 14:08:34,167 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:08:34,204 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-08 14:08:34,204 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:08:34,240 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-08 14:08:34,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525843682] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:08:34,240 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:08:34,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2025-02-08 14:08:34,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190198207] [2025-02-08 14:08:34,240 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:08:34,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:08:34,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:34,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:08:34,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:08:34,253 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 62 [2025-02-08 14:08:34,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 308 transitions, 3456 flow. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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) [2025-02-08 14:08:34,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:34,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 62 [2025-02-08 14:08:34,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:34,313 INFO L124 PetriNetUnfolderBase]: 45/483 cut-off events. [2025-02-08 14:08:34,313 INFO L125 PetriNetUnfolderBase]: For 2112/2112 co-relation queries the response was YES. [2025-02-08 14:08:34,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2449 conditions, 483 events. 45/483 cut-off events. For 2112/2112 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2635 event pairs, 0 based on Foata normal form. 3/486 useless extension candidates. Maximal degree in co-relation 2417. Up to 240 conditions per place. [2025-02-08 14:08:34,314 INFO L140 encePairwiseOnDemand]: 55/62 looper letters, 210 selfloop transitions, 94 changer transitions 0/307 dead transitions. [2025-02-08 14:08:34,314 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 307 transitions, 4042 flow [2025-02-08 14:08:34,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:08:34,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:08:34,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 116 transitions. [2025-02-08 14:08:34,315 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3741935483870968 [2025-02-08 14:08:34,315 INFO L175 Difference]: Start difference. First operand has 171 places, 308 transitions, 3456 flow. Second operand 5 states and 116 transitions. [2025-02-08 14:08:34,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 307 transitions, 4042 flow [2025-02-08 14:08:34,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 307 transitions, 3660 flow, removed 0 selfloop flow, removed 8 redundant places. [2025-02-08 14:08:34,327 INFO L231 Difference]: Finished difference. Result has 117 places, 307 transitions, 3240 flow [2025-02-08 14:08:34,327 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=3052, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3240, PETRI_PLACES=117, PETRI_TRANSITIONS=307} [2025-02-08 14:08:34,327 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 59 predicate places. [2025-02-08 14:08:34,327 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 307 transitions, 3240 flow [2025-02-08 14:08:34,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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) [2025-02-08 14:08:34,327 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:34,328 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 1, 1, 1, 1] [2025-02-08 14:08:34,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-02-08 14:08:34,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:08:34,532 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:08:34,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:34,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1676901255, now seen corresponding path program 1 times [2025-02-08 14:08:34,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:34,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350316118] [2025-02-08 14:08:34,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:34,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:34,538 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-02-08 14:08:34,543 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-08 14:08:34,543 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:34,543 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:34,810 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:08:34,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:34,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350316118] [2025-02-08 14:08:34,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350316118] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:08:34,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903770236] [2025-02-08 14:08:34,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:34,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:08:34,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:08:34,812 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:08:34,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-08 14:08:34,870 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-02-08 14:08:34,892 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-08 14:08:34,892 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:34,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:34,893 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-02-08 14:08:34,894 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:08:34,946 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:08:34,946 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:08:35,292 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:08:35,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903770236] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:08:35,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:08:35,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 47 [2025-02-08 14:08:35,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684179644] [2025-02-08 14:08:35,292 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:08:35,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2025-02-08 14:08:35,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:35,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2025-02-08 14:08:35,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2025-02-08 14:08:35,358 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 62 [2025-02-08 14:08:35,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 307 transitions, 3240 flow. Second operand has 48 states, 48 states have (on average 22.0625) internal successors, (1059), 48 states have internal predecessors, (1059), 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) [2025-02-08 14:08:35,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:35,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 62 [2025-02-08 14:08:35,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:36,073 INFO L124 PetriNetUnfolderBase]: 93/999 cut-off events. [2025-02-08 14:08:36,073 INFO L125 PetriNetUnfolderBase]: For 10608/10608 co-relation queries the response was YES. [2025-02-08 14:08:36,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4825 conditions, 999 events. 93/999 cut-off events. For 10608/10608 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5735 event pairs, 0 based on Foata normal form. 108/1107 useless extension candidates. Maximal degree in co-relation 4798. Up to 352 conditions per place. [2025-02-08 14:08:36,075 INFO L140 encePairwiseOnDemand]: 52/62 looper letters, 29 selfloop transitions, 599 changer transitions 0/631 dead transitions. [2025-02-08 14:08:36,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 631 transitions, 7976 flow [2025-02-08 14:08:36,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-02-08 14:08:36,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2025-02-08 14:08:36,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 1164 transitions. [2025-02-08 14:08:36,077 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.40813464235624125 [2025-02-08 14:08:36,077 INFO L175 Difference]: Start difference. First operand has 117 places, 307 transitions, 3240 flow. Second operand 46 states and 1164 transitions. [2025-02-08 14:08:36,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 631 transitions, 7976 flow [2025-02-08 14:08:36,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 631 transitions, 7644 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:08:36,096 INFO L231 Difference]: Finished difference. Result has 171 places, 631 transitions, 7946 flow [2025-02-08 14:08:36,096 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=3076, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=299, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=7946, PETRI_PLACES=171, PETRI_TRANSITIONS=631} [2025-02-08 14:08:36,096 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 113 predicate places. [2025-02-08 14:08:36,096 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 631 transitions, 7946 flow [2025-02-08 14:08:36,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 22.0625) internal successors, (1059), 48 states have internal predecessors, (1059), 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) [2025-02-08 14:08:36,097 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:36,097 INFO L206 CegarLoopForPetriNet]: trace histogram [23, 23, 22, 1, 1, 1, 1] [2025-02-08 14:08:36,103 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-02-08 14:08:36,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:08:36,297 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:08:36,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:36,298 INFO L85 PathProgramCache]: Analyzing trace with hash 866527033, now seen corresponding path program 2 times [2025-02-08 14:08:36,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:36,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394196544] [2025-02-08 14:08:36,298 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:08:36,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:36,311 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 72 statements into 2 equivalence classes. [2025-02-08 14:08:36,313 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 6 of 72 statements. [2025-02-08 14:08:36,313 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:08:36,313 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:36,336 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2025-02-08 14:08:36,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:36,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394196544] [2025-02-08 14:08:36,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394196544] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:08:36,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577895599] [2025-02-08 14:08:36,337 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:08:36,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:08:36,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:08:36,339 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:08:36,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-02-08 14:08:36,407 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 72 statements into 2 equivalence classes. [2025-02-08 14:08:36,417 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 6 of 72 statements. [2025-02-08 14:08:36,417 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:08:36,417 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:36,418 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 14:08:36,419 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:08:36,482 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2025-02-08 14:08:36,483 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:08:36,546 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2025-02-08 14:08:36,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577895599] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:08:36,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:08:36,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2025-02-08 14:08:36,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553300605] [2025-02-08 14:08:36,547 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:08:36,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:08:36,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:36,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:08:36,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:08:36,567 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 62 [2025-02-08 14:08:36,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 631 transitions, 7946 flow. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 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) [2025-02-08 14:08:36,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:36,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 62 [2025-02-08 14:08:36,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:36,724 INFO L124 PetriNetUnfolderBase]: 93/990 cut-off events. [2025-02-08 14:08:36,724 INFO L125 PetriNetUnfolderBase]: For 7511/7511 co-relation queries the response was YES. [2025-02-08 14:08:36,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5387 conditions, 990 events. 93/990 cut-off events. For 7511/7511 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5682 event pairs, 0 based on Foata normal form. 9/999 useless extension candidates. Maximal degree in co-relation 5348. Up to 352 conditions per place. [2025-02-08 14:08:36,728 INFO L140 encePairwiseOnDemand]: 54/62 looper letters, 0 selfloop transitions, 0 changer transitions 630/630 dead transitions. [2025-02-08 14:08:36,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 630 transitions, 9154 flow [2025-02-08 14:08:36,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:08:36,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:08:36,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 115 transitions. [2025-02-08 14:08:36,729 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3709677419354839 [2025-02-08 14:08:36,729 INFO L175 Difference]: Start difference. First operand has 171 places, 631 transitions, 7946 flow. Second operand 5 states and 115 transitions. [2025-02-08 14:08:36,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 630 transitions, 9154 flow [2025-02-08 14:08:36,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 630 transitions, 7065 flow, removed 468 selfloop flow, removed 43 redundant places. [2025-02-08 14:08:36,758 INFO L231 Difference]: Finished difference. Result has 131 places, 0 transitions, 0 flow [2025-02-08 14:08:36,758 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=5811, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=630, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=630, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=131, PETRI_TRANSITIONS=0} [2025-02-08 14:08:36,759 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 73 predicate places. [2025-02-08 14:08:36,759 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 0 transitions, 0 flow [2025-02-08 14:08:36,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 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) [2025-02-08 14:08:36,761 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 21 remaining) [2025-02-08 14:08:36,761 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2025-02-08 14:08:36,761 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2025-02-08 14:08:36,761 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2025-02-08 14:08:36,762 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2025-02-08 14:08:36,762 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2025-02-08 14:08:36,762 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2025-02-08 14:08:36,762 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2025-02-08 14:08:36,762 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2025-02-08 14:08:36,762 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2025-02-08 14:08:36,762 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2025-02-08 14:08:36,762 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2025-02-08 14:08:36,762 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 21 remaining) [2025-02-08 14:08:36,762 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 21 remaining) [2025-02-08 14:08:36,762 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 21 remaining) [2025-02-08 14:08:36,762 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2025-02-08 14:08:36,762 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2025-02-08 14:08:36,762 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2025-02-08 14:08:36,762 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2025-02-08 14:08:36,762 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2025-02-08 14:08:36,762 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2025-02-08 14:08:36,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-02-08 14:08:36,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2025-02-08 14:08:36,963 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:36,967 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 14:08:36,967 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 14:08:36,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 02:08:36 BasicIcfg [2025-02-08 14:08:36,970 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 14:08:36,971 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:08:36,971 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:08:36,971 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:08:36,971 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:07:35" (3/4) ... [2025-02-08 14:08:36,972 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 14:08:36,974 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-08 14:08:36,974 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-08 14:08:36,974 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-02-08 14:08:36,979 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 158 nodes and edges [2025-02-08 14:08:36,979 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 55 nodes and edges [2025-02-08 14:08:36,980 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2025-02-08 14:08:36,980 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-08 14:08:36,980 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 14:08:37,039 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 14:08:37,040 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 14:08:37,040 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:08:37,040 INFO L158 Benchmark]: Toolchain (without parser) took 62431.59ms. Allocated memory was 142.6MB in the beginning and 11.1GB in the end (delta: 11.0GB). Free memory was 113.6MB in the beginning and 7.5GB in the end (delta: -7.4GB). Peak memory consumption was 3.6GB. Max. memory is 16.1GB. [2025-02-08 14:08:37,040 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 123.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:08:37,042 INFO L158 Benchmark]: CACSL2BoogieTranslator took 193.12ms. Allocated memory is still 142.6MB. Free memory was 113.6MB in the beginning and 101.3MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:08:37,043 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.90ms. Allocated memory is still 142.6MB. Free memory was 101.3MB in the beginning and 99.4MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:08:37,043 INFO L158 Benchmark]: Boogie Preprocessor took 51.86ms. Allocated memory is still 142.6MB. Free memory was 99.4MB in the beginning and 97.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:08:37,043 INFO L158 Benchmark]: IcfgBuilder took 720.74ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 96.5MB in the end (delta: 628.3kB). Peak memory consumption was 65.4MB. Max. memory is 16.1GB. [2025-02-08 14:08:37,044 INFO L158 Benchmark]: TraceAbstraction took 61350.30ms. Allocated memory was 142.6MB in the beginning and 11.1GB in the end (delta: 11.0GB). Free memory was 95.8MB in the beginning and 7.5GB in the end (delta: -7.4GB). Peak memory consumption was 3.6GB. Max. memory is 16.1GB. [2025-02-08 14:08:37,044 INFO L158 Benchmark]: Witness Printer took 69.04ms. Allocated memory is still 11.1GB. Free memory was 7.5GB in the beginning and 7.5GB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:08:37,045 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 123.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 193.12ms. Allocated memory is still 142.6MB. Free memory was 113.6MB in the beginning and 101.3MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.90ms. Allocated memory is still 142.6MB. Free memory was 101.3MB in the beginning and 99.4MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.86ms. Allocated memory is still 142.6MB. Free memory was 99.4MB in the beginning and 97.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 720.74ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 96.5MB in the end (delta: 628.3kB). Peak memory consumption was 65.4MB. Max. memory is 16.1GB. * TraceAbstraction took 61350.30ms. Allocated memory was 142.6MB in the beginning and 11.1GB in the end (delta: 11.0GB). Free memory was 95.8MB in the beginning and 7.5GB in the end (delta: -7.4GB). Peak memory consumption was 3.6GB. Max. memory is 16.1GB. * Witness Printer took 69.04ms. Allocated memory is still 11.1GB. Free memory was 7.5GB in the beginning and 7.5GB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 112]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 112]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 112]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 112]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 112]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 112]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 84 locations, 21 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 61.3s, OverallIterations: 26, TraceHistogramMax: 23, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 52.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4098 SdHoareTripleChecker+Valid, 4.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3874 mSDsluCounter, 2974 SdHoareTripleChecker+Invalid, 3.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2900 mSDsCounter, 705 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9943 IncrementalHoareTripleChecker+Invalid, 10648 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 705 mSolverCounterUnsat, 74 mSDtfsCounter, 9943 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1011 GetRequests, 648 SyntacticMatches, 14 SemanticMatches, 349 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2773 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7946occurred in iteration=25, InterpolantAutomatonStates: 267, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 933 NumberOfCodeBlocks, 605 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 1270 ConstructedInterpolants, 0 QuantifiedInterpolants, 4506 SizeOfPredicates, 70 NumberOfNonLiveVariables, 2351 ConjunctsInSsa, 119 ConjunctsInUnsatCore, 54 InterpolantComputations, 12 PerfectInterpolantSequences, 2881/3761 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 14:08:37,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE